132 lines
5.5 KiB
JSON
132 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-2026-53501",
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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": "2026-06-09T17:05:25.059Z",
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"datePublished": "2026-07-31T18:42:42.360Z",
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"dateUpdated": "2026-07-31T19:58:01.891Z"
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},
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"containers": {
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"cna": {
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"title": "Thumbor has HMAC validation bypass via multiple .replace() calls when removing URL signature",
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"problemTypes": [
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{
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"descriptions": [
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{
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"cweId": "CWE-347",
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"lang": "en",
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"description": "CWE-347: Improper Verification of Cryptographic Signature",
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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": "LOW",
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"baseScore": 8.2,
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"baseSeverity": "HIGH",
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"confidentialityImpact": "NONE",
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"integrityImpact": "HIGH",
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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:H/A:L",
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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/thumbor/thumbor/security/advisories/GHSA-mw3h-qjxj-6xg9",
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"tags": [
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"x_refsource_CONFIRM"
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],
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"url": "https://github.com/thumbor/thumbor/security/advisories/GHSA-mw3h-qjxj-6xg9"
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},
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{
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"name": "https://github.com/thumbor/thumbor/commit/e3ae3e2500537b4d735df4144129a649374bb70b",
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"tags": [
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"x_refsource_MISC"
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],
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"url": "https://github.com/thumbor/thumbor/commit/e3ae3e2500537b4d735df4144129a649374bb70b"
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},
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{
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"name": "https://github.com/thumbor/thumbor/releases/tag/7.8.0",
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"tags": [
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"x_refsource_MISC"
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],
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"url": "https://github.com/thumbor/thumbor/releases/tag/7.8.0"
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}
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],
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"affected": [
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{
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"vendor": "thumbor",
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"product": "thumbor",
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"versions": [
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{
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"version": "< 7.8.0",
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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": "2026-07-31T18:42:42.360Z"
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},
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"descriptions": [
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{
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"lang": "en",
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"value": "Thumbor is an open-source photo thumbnail service by globo.com. Prior to 7.8.0, Thumbor’s HMAC validation can be bypassed due to the use of Python’s .replace() when removing the signature from the URL before validation. Since .replace() removes all occurrences of the substring, an attacker can insert the same signature multiple times in the URL and manipulate the final URL used for validation. This allows crafting URLs where the validated string differs from the actual requested resource, enabling loading images from unintended domains or paths. This issue is fixed in 7.8.0."
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}
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],
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"source": {
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"advisory": "GHSA-mw3h-qjxj-6xg9",
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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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"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": "2026-07-31T19:57:48.500225Z",
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"id": "CVE-2026-53501",
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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": "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": "2026-07-31T19:58:01.891Z"
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}
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}
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]
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}
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} |