335 lines
13 KiB
JSON
335 lines
13 KiB
JSON
{
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"dataType": "CVE_RECORD",
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"dataVersion": "5.2",
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"cveMetadata": {
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"cveId": "CVE-2026-18503",
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"assignerOrgId": "28c92f92-d60d-412d-b760-e73465c3df22",
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"state": "PUBLISHED",
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"assignerShortName": "PSF",
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"dateReserved": "2026-07-31T16:35:42.902Z",
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"datePublished": "2026-08-10T13:45:31.618Z",
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"dateUpdated": "2026-11-10T12:40:54.177Z"
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},
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"containers": {
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"cna": {
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"affected": [
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{
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"defaultStatus": "unaffected",
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"modules": [
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"csv"
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],
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"product": "CPython",
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"repo": "https://github.com/python/cpython",
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"vendor": "Python Software Foundation",
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"versions": [
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{
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"version": "0",
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"lessThan": "3.10.21",
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"status": "affected",
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"versionType": "python"
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},
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{
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"version": "3.11.0",
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"lessThan": "3.11.16",
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"status": "affected",
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"versionType": "python"
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},
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{
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"version": "3.12.0",
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"lessThan": "3.12.14",
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"status": "affected",
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"versionType": "python"
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},
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{
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"version": "3.13.0",
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"lessThan": "3.13.15",
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"status": "affected",
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"versionType": "python"
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},
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{
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"version": "3.14.0",
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"lessThan": "3.14.7",
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"status": "affected",
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"versionType": "python"
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},
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{
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"version": "3.15.0a1",
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"lessThan": "3.15.0rc1",
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"status": "affected",
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"versionType": "python"
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},
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{
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"version": "3.16.0a1",
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"lessThan": "3.16.0",
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"status": "affected",
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"versionType": "python"
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}
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]
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}
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],
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"credits": [
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{
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"lang": "en",
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"type": "remediation developer",
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"value": "Serhiy Storchaka (https://github.com/serhiy-storchaka)"
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},
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{
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"lang": "en",
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"type": "reporter",
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"value": "Jack Desert (https://github.com/jackdesert)"
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},
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{
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"lang": "en",
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"type": "reporter",
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"value": "Sean Gilligan (https://github.com/sg3-141-592)"
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},
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{
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"lang": "en",
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"type": "coordinator",
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"value": "Seth Larson (https://github.com/sethmlarson)"
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}
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],
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"descriptions": [
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{
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"lang": "en",
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"supportingMedia": [
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{
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"type": "text/html",
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"value": "Attacker-controlled CSV samples can trigger super-linear \nregular-expression work during dialect sniffing and consume significant \nCPU when applications pass unbounded input to csv.Sniffer.sniff()."
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}
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],
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"value": "Attacker-controlled CSV samples can trigger super-linear \nregular-expression work during dialect sniffing and consume significant \nCPU when applications pass unbounded input to csv.Sniffer.sniff()."
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}
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],
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"metrics": [
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{
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"cvssV4_0": {
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"Automatable": "NOT_DEFINED",
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"Recovery": "NOT_DEFINED",
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"Safety": "NOT_DEFINED",
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"attackComplexity": "LOW",
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"attackRequirements": "NONE",
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"attackVector": "LOCAL",
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"baseScore": 2.4,
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"baseSeverity": "LOW",
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"exploitMaturity": "NOT_DEFINED",
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"privilegesRequired": "LOW",
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"providerUrgency": "NOT_DEFINED",
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"subAvailabilityImpact": "NONE",
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"subConfidentialityImpact": "NONE",
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"subIntegrityImpact": "NONE",
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"userInteraction": "PASSIVE",
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"valueDensity": "NOT_DEFINED",
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"vectorString": "CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:P/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N",
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"version": "4.0",
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"vulnAvailabilityImpact": "LOW",
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"vulnConfidentialityImpact": "NONE",
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"vulnIntegrityImpact": "NONE",
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"vulnerabilityResponseEffort": "NOT_DEFINED"
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},
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"format": "CVSS",
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"scenarios": [
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{
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"lang": "en",
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"value": "GENERAL"
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}
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]
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}
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],
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"problemTypes": [
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{
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"descriptions": [
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{
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"cweId": "CWE-1176",
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"description": "CWE-1176",
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"lang": "en",
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"type": "CWE"
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}
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]
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}
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],
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"providerMetadata": {
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"orgId": "28c92f92-d60d-412d-b760-e73465c3df22",
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"shortName": "PSF",
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"dateUpdated": "2026-10-14T00:34:46.583Z"
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},
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"references": [
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{
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"tags": [
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"vendor-advisory"
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],
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"url": "https://mail.python.org/archives/list/security-announce@python.org/thread/KQ7NBMCPAZJHRROQXJQE4GMXGLD5KHBS/"
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},
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{
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"tags": [
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"patch"
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],
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"url": "https://github.com/python/cpython/pull/153694"
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},
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{
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"tags": [
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"issue-tracking"
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],
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"url": "https://github.com/python/cpython/issues/98820"
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},
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{
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"tags": [
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"patch"
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],
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"url": "https://github.com/python/cpython/commit/063d4555c94ef412c731527dbf30193327f2ee82"
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},
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{
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"tags": [
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"patch"
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],
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"url": "https://github.com/python/cpython/commit/476fb09cdb0d73e645849d98c610e7e5697ce7c9"
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},
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{
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"tags": [
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"patch"
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],
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"url": "https://github.com/python/cpython/commit/89f29c760c02774b099ddd6863268eb13fa3946a"
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},
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{
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"tags": [
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"patch"
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],
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"url": "https://github.com/python/cpython/commit/b30c7fa9edd921a118f286e9f90f560777fa693b"
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},
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{
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"tags": [
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"patch"
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],
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"url": "https://github.com/python/cpython/commit/b09a67a20c464f8288c9f9a6b9c7082a74560024"
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},
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{
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"tags": [
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"patch"
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],
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"url": "https://github.com/python/cpython/commit/fd78b565d7c326f96ae903ab945b47f35d829cf4"
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}
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],
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"source": {
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"discovery": "UNKNOWN"
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},
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"title": "Super-linear CPU usage for unbounded input to csv.Sniffer.sniff()",
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"x_generator": {
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"engine": "cvelib 1.8.0"
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}
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},
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"adp": [
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{
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"metrics": [
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{
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"other": {
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"type": "ssvc",
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"content": {
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"timestamp": "2026-08-10T17:56:17.853221Z",
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"id": "CVE-2026-18503",
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"options": [
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{
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"Exploitation": "none"
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},
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{
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"Automatable": "no"
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},
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{
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"Technical Impact": "partial"
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}
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],
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"role": "CISA Coordinator",
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"version": "2.0.3"
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}
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}
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}
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],
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"title": "CISA ADP Vulnrichment",
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"providerMetadata": {
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"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
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"shortName": "CISA-ADP",
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"dateUpdated": "2026-08-10T17:56:28.336Z"
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}
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},
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{
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"x_adpType": "supplier",
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"providerMetadata": {
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"orgId": "0b142b55-0307-4c5a-b3c9-f314f3fb7c5e",
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"shortName": "siemens-SADP",
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"dateUpdated": "2026-11-10T12:40:54.177Z"
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},
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"affected": [
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{
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"vendor": "Siemens",
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"product": "SIMATIC S7-1500 CPU 1518-4 PN/DP MFP (6ES7518-4AX00-1AB0)",
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"versions": [
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{
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"status": "affected",
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"version": "V3.1.7",
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"lessThan": "*",
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"versionType": "custom"
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}
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],
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"defaultStatus": "unknown"
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},
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{
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"vendor": "Siemens",
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"product": "SIMATIC S7-1500 CPU 1518-4 PN/DP MFP (6ES7518-4AX00-1AC0)",
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"versions": [
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{
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"status": "affected",
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"version": "V3.1.7",
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"lessThan": "*",
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"versionType": "custom"
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}
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],
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"defaultStatus": "unknown"
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},
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{
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"vendor": "Siemens",
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"product": "SIMATIC S7-1500 CPU 1518F-4 PN/DP MFP (6ES7518-4FX00-1AB0)",
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"versions": [
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{
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"status": "affected",
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"version": "V3.1.7",
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"lessThan": "*",
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"versionType": "custom"
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}
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],
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"defaultStatus": "unknown"
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},
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{
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"vendor": "Siemens",
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"product": "SIMATIC S7-1500 CPU 1518F-4 PN/DP MFP (6ES7518-4FX00-1AC0)",
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"versions": [
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{
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"status": "affected",
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"version": "V3.1.7",
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"lessThan": "*",
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"versionType": "custom"
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}
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],
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"defaultStatus": "unknown"
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},
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{
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"vendor": "Siemens",
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"product": "SIPLUS S7-1500 CPU 1518-4 PN/DP MFP (6AG1518-4AX00-4AC0)",
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"versions": [
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{
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"status": "affected",
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"version": "V3.1.7",
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"lessThan": "*",
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"versionType": "custom"
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}
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],
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"defaultStatus": "unknown"
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}
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],
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"references": [
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{
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"url": "https://cert-portal.siemens.com/productcert/html/ssa-457936.html"
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}
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]
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}
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]
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}
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} |