216 lines
8.9 KiB
JSON
216 lines
8.9 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-2026-93748",
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"assignerOrgId": "83251b91-4cc7-4094-a5c7-464a1b83ea10",
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"state": "PUBLISHED",
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"assignerShortName": "VulnCheck",
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"dateReserved": "2026-09-18T16:30:17.085Z",
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"datePublished": "2026-09-18T17:51:34.262Z",
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"dateUpdated": "2026-11-05T14:40:44.021Z"
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},
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"containers": {
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"shortName": "VulnCheck",
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"dateUpdated": "2026-09-24T14:23:07.274Z"
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},
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"datePublic": "2026-09-17T00:00:00.000Z",
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"title": "http-cache-semantics through 4.2.0 Cross-User Cache Disclosure via max-stale",
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"descriptions": [
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{
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"lang": "en",
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"value": "http-cache-semantics through 4.2.0 fails to properly validate security-zeroed cache entries when processing client max-stale directives, allowing unauthenticated attackers to retrieve cached responses belonging to other users. Attackers can request the same URL with a large max-stale value to obtain another user's Set-Cookie session credentials from shared-cache entries that were deliberately zeroed for security reasons."
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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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"lang": "en",
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"description": "Use of Cache Containing Sensitive Information",
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"cweId": "CWE-524",
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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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"affected": [
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{
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"vendor": "kornelski",
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"product": "http-cache-semantics",
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"defaultStatus": "unaffected",
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"packageURL": "pkg:npm/http-cache-semantics",
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"versions": [
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{
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"version": "0",
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"status": "affected",
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"versionType": "semver",
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"lessThanOrEqual": "4.2.0"
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}
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]
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}
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],
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"cpeApplicability": [
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{
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"nodes": [
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{
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"operator": "OR",
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"negate": false,
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{
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"vulnerable": true,
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"criteria": "cpe:2.3:a:http-cache-semantics_project:http-cache-semantics:*:*:*:*:*:*:*:*",
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"versionEndIncluding": "4.2.0"
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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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"format": "CVSS",
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"version": "4.0",
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"vectorString": "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N",
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"attackVector": "NETWORK",
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"attackComplexity": "LOW",
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"attackRequirements": "NONE",
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"privilegesRequired": "NONE",
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"userInteraction": "NONE",
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"vulnConfidentialityImpact": "HIGH",
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"vulnIntegrityImpact": "NONE",
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"vulnAvailabilityImpact": "NONE",
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"subConfidentialityImpact": "NONE",
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"subIntegrityImpact": "NONE",
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"subAvailabilityImpact": "NONE",
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"baseScore": 8.7,
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"baseSeverity": "HIGH"
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}
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},
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{
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"format": "CVSS",
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"cvssV3_1": {
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"version": "3.1",
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"attackVector": "NETWORK",
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"attackComplexity": "LOW",
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"privilegesRequired": "NONE",
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"userInteraction": "NONE",
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"scope": "UNCHANGED",
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"confidentialityImpact": "HIGH",
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"integrityImpact": "NONE",
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"availabilityImpact": "NONE",
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"baseScore": 7.5,
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"baseSeverity": "HIGH"
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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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"url": "https://github.com/kornelski/http-cache-semantics/issues/56",
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"tags": [
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"issue-tracking"
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],
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"name": "GitHub Issue #56"
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},
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{
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"url": "https://github.com/kornelski/http-cache-semantics",
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"tags": [
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"product"
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]
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},
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{
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"url": "https://github.com/kornelski/http-cache-semantics/blob/f01112e954b83cfa8765b633ba880e5e980aa54c/index.js#L425-L441",
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"name": "max-stale stale-serving branch that re-serves a zero-lifetime entry",
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"tags": [
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"technical-description"
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]
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},
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{
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"url": "https://github.com/kornelski/http-cache-semantics/blob/f01112e954b83cfa8765b633ba880e5e980aa54c/index.js#L603-L623",
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"name": "maxAge() zeroing for shared Set-Cookie and proxy-revalidate responses",
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"tags": [
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"technical-description"
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]
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},
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{
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"name": "VulnCheck Advisory: http-cache-semantics through 4.2.0 Cross-User Cache Disclosure via max-stale",
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"tags": [
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"third-party-advisory"
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],
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"url": "https://www.vulncheck.com/advisories/http-cache-semantics-through-4.2.0-cross-user-cache-disclosure-via-max-stale"
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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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"value": "Wayde Shi (PayPal Cyber Security Team)",
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"type": "finder"
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}
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],
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"x_generator": {
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"engine": "vulncheck-endgame"
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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": "2026-10-14T22:56:33.212079Z",
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"id": "CVE-2026-93748",
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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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"dateUpdated": "2026-10-14T22:56:47.595Z"
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{
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"shortName": "CVE",
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"dateUpdated": "2026-11-05T14:40:44.021Z"
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},
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"references": [
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{
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"url": "https://github.com/kornelski/http-cache-semantics/issues/56#issuecomment-5975759591"
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},
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{
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"url": "https://github.com/advisories/GHSA-ch52-4w7c-c8xp"
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},
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{
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"url": "https://github.com/github/advisory-database/issues/10139"
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}
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"title": "CVE Program Container",
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