{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-50012","assignerOrgId":"a0819718-46f1-4df5-94e2-005712e83aaa","state":"PUBLISHED","assignerShortName":"GitHub_M","dateReserved":"2026-06-02T22:46:02.579Z","datePublished":"2026-07-16T16:11:34.488Z","dateUpdated":"2026-07-17T14:04:25.895Z"},"containers":{"cna":{"title":"Squid: Memory corruption in cache_digest reply handling","problemTypes":[{"descriptions":[{"cweId":"CWE-20","lang":"en","description":"CWE-20: Improper Input Validation","type":"CWE"}]},{"descriptions":[{"cweId":"CWE-122","lang":"en","description":"CWE-122: Heap-based Buffer Overflow","type":"CWE"}]}],"metrics":[{"cvssV3_1":{"attackComplexity":"LOW","attackVector":"NETWORK","availabilityImpact":"HIGH","baseScore":5.5,"baseSeverity":"MEDIUM","confidentialityImpact":"NONE","integrityImpact":"LOW","privilegesRequired":"HIGH","scope":"UNCHANGED","userInteraction":"NONE","vectorString":"CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:L/A:H","version":"3.1"}}],"references":[{"name":"https://github.com/squid-cache/squid/security/advisories/GHSA-5vmx-9x64-9284","tags":["x_refsource_CONFIRM"],"url":"https://github.com/squid-cache/squid/security/advisories/GHSA-5vmx-9x64-9284"},{"name":"https://github.com/squid-cache/squid/pull/2423","tags":["x_refsource_MISC"],"url":"https://github.com/squid-cache/squid/pull/2423"},{"name":"https://github.com/squid-cache/squid/commit/19fcfe922717c8b255270c032dcde4071c003bcd","tags":["x_refsource_MISC"],"url":"https://github.com/squid-cache/squid/commit/19fcfe922717c8b255270c032dcde4071c003bcd"},{"name":"https://github.com/squid-cache/squid/releases/tag/SQUID_7_6","tags":["x_refsource_MISC"],"url":"https://github.com/squid-cache/squid/releases/tag/SQUID_7_6"}],"affected":[{"vendor":"squid-cache","product":"squid","versions":[{"version":"< 7.6","status":"affected"}]}],"providerMetadata":{"orgId":"a0819718-46f1-4df5-94e2-005712e83aaa","shortName":"GitHub_M","dateUpdated":"2026-07-16T16:11:34.488Z"},"descriptions":[{"lang":"en","value":"Squid is a caching proxy for the Web. Prior to 7.6, due to an improper input validation bug in cache digest reply handling (peerDigestSwapInMask in src/peer_digest.cc), Squid is vulnerable to a heap-based buffer overflow: a cache digest's on-the-wire size may be larger than the mask_size declared within the digest, so a trusted peer sending a maliciously crafted reply to a cache_digest request message can trigger the overflow. This attack is limited to Squid instances compiled with the --enable-cache-digests option and configured with cache_peer entries. This issue is fixed in version 7.6."}],"source":{"advisory":"GHSA-5vmx-9x64-9284","discovery":"UNKNOWN"}},"adp":[{"metrics":[{"other":{"type":"ssvc","content":{"timestamp":"2026-07-17T14:04:19.455063Z","id":"CVE-2026-50012","options":[{"Exploitation":"none"},{"Automatable":"no"},{"Technical Impact":"partial"}],"role":"CISA Coordinator","version":"2.0.3"}}}],"title":"CISA ADP Vulnrichment","providerMetadata":{"orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","shortName":"CISA-ADP","dateUpdated":"2026-07-17T14:04:25.895Z"}}]}}