{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-115906","assignerOrgId":"a0819718-46f1-4df5-94e2-005712e83aaa","state":"PUBLISHED","assignerShortName":"GitHub_M","dateReserved":"2026-10-23T20:21:45.106Z","datePublished":"2026-10-26T16:30:30.954Z","dateUpdated":"2026-10-31T01:32:55.292Z"},"containers":{"cna":{"title":"zip: AES Entry HMAC Authentication Bypass on Premature EOF","problemTypes":[{"descriptions":[{"cweId":"CWE-354","lang":"en","description":"CWE-354: Improper Validation of Integrity Check Value","type":"CWE"}]},{"descriptions":[{"cweId":"CWE-1284","lang":"en","description":"CWE-1284: Improper Validation of Specified Quantity in Input","type":"CWE"}]}],"metrics":[{"cvssV3_1":{"attackComplexity":"LOW","attackVector":"NETWORK","availabilityImpact":"NONE","baseScore":6.5,"baseSeverity":"MEDIUM","confidentialityImpact":"NONE","integrityImpact":"HIGH","privilegesRequired":"NONE","scope":"UNCHANGED","userInteraction":"REQUIRED","vectorString":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:N","version":"3.1"}}],"references":[{"name":"https://github.com/zip-rs/zip2/security/advisories/GHSA-8hxf-qr8p-62x4","tags":["x_refsource_CONFIRM"],"url":"https://github.com/zip-rs/zip2/security/advisories/GHSA-8hxf-qr8p-62x4"},{"name":"https://github.com/zip-rs/zip2/commit/ec265db0b0602f8ffb9479327397bddefb7e2216","tags":["x_refsource_MISC"],"url":"https://github.com/zip-rs/zip2/commit/ec265db0b0602f8ffb9479327397bddefb7e2216"},{"name":"https://github.com/zip-rs/zip2/releases/tag/v9.0.0","tags":["x_refsource_MISC"],"url":"https://github.com/zip-rs/zip2/releases/tag/v9.0.0"}],"affected":[{"vendor":"zip-rs","product":"zip2","versions":[{"version":">= 0.6.0, < 9.0.0","status":"affected"}]}],"providerMetadata":{"orgId":"a0819718-46f1-4df5-94e2-005712e83aaa","shortName":"GitHub_M","dateUpdated":"2026-10-26T16:30:30.954Z"},"descriptions":[{"lang":"en","value":"zip is a zip library for Rust that supports reading and writing simple ZIP files. From 0.6.0 until 9.0.0, the AES entry reader in src/aes.rs verifies its HMAC only when the attacker-controlled data counter reaches zero. If the underlying bounded reader reaches the real end of the archive while data_remaining is still positive, or if an encrypted entry has no payload, the reader can return a clean end of stream without reading and comparing the authentication tag. Applications using by_index_decrypt, by_name_decrypt, by_path_decrypt, or password-enabled by_index_with_options can therefore accept modified plaintext without an authentication error. This issue is fixed in version 9.0.0."}],"source":{"advisory":"GHSA-8hxf-qr8p-62x4","discovery":"UNKNOWN"}},"adp":[{"references":[{"url":"https://github.com/zip-rs/zip2/security/advisories/GHSA-8hxf-qr8p-62x4","tags":["exploit"]}],"metrics":[{"other":{"type":"ssvc","content":{"timestamp":"2026-10-31T01:32:24.718914Z","id":"CVE-2026-115906","options":[{"Exploitation":"poc"},{"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":"2026-10-31T01:32:55.292Z"}}]}}