136 lines
5.5 KiB
JSON
136 lines
5.5 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-2026-42304",
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"assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
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"state": "PUBLISHED",
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"assignerShortName": "GitHub_M",
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"dateReserved": "2026-04-26T12:13:55.552Z",
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"datePublished": "2026-05-13T20:20:29.149Z",
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"dateUpdated": "2026-05-14T15:45:34.746Z"
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},
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"containers": {
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"cna": {
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"title": "Twisted: Denial of Service (DoS) in twisted.names via Crafted DNS Compression Pointer Chains",
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"problemTypes": [
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{
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"descriptions": [
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{
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"cweId": "CWE-400",
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"lang": "en",
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"description": "CWE-400: Uncontrolled Resource Consumption",
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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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"descriptions": [
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{
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"cweId": "CWE-407",
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"lang": "en",
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"description": "CWE-407: Inefficient Algorithmic Complexity",
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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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"metrics": [
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{
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"cvssV3_1": {
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"attackComplexity": "LOW",
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"attackVector": "NETWORK",
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"availabilityImpact": "HIGH",
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"baseScore": 7.5,
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"baseSeverity": "HIGH",
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"confidentialityImpact": "NONE",
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"integrityImpact": "NONE",
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"privilegesRequired": "NONE",
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"scope": "UNCHANGED",
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"userInteraction": "NONE",
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"vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
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"version": "3.1"
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}
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}
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],
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"references": [
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{
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"name": "https://github.com/twisted/twisted/security/advisories/GHSA-grgv-6hw6-v9g4",
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"tags": [
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"x_refsource_CONFIRM"
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],
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"url": "https://github.com/twisted/twisted/security/advisories/GHSA-grgv-6hw6-v9g4"
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}
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],
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"affected": [
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{
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"vendor": "twisted",
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"product": "twisted",
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"versions": [
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{
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"version": "< 26.4.0rc2",
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"status": "affected"
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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": "a0819718-46f1-4df5-94e2-005712e83aaa",
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"shortName": "GitHub_M",
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"dateUpdated": "2026-05-13T20:20:29.149Z"
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},
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"descriptions": [
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{
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"lang": "en",
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"value": "Twisted is an event-based framework for internet applications, supporting Python 3.6+. Prior to 26.4.0rc2, the twisted.names module is vulnerable to a Denial of Service (DoS) attack via resource exhaustion during DNS name decompression. A remote, unauthenticated attacker can exploit this by sending a crafted TCP DNS packet containing deeply chained compression pointers. This flaw bypasses previous loop-prevention logic, causing the single-threaded Twisted reactor to hang while processing millions of recursive lookups, effectively freezing the server. This vulnerability is fixed in 26.4.0rc2."
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}
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],
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"source": {
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"advisory": "GHSA-grgv-6hw6-v9g4",
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"discovery": "UNKNOWN"
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}
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},
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"adp": [
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{
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"references": [
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{
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"url": "https://github.com/twisted/twisted/security/advisories/GHSA-grgv-6hw6-v9g4",
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"tags": [
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"exploit"
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]
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}
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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": "2026-05-14T15:44:57.486318Z",
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"id": "CVE-2026-42304",
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"options": [
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{
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"Exploitation": "poc"
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},
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{
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"Automatable": "yes"
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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": "2026-05-14T15:45:34.746Z"
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}
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}
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]
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}
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} |