{"id":"CVE-2026-22705","state":"PUBLISHED","title":"RustCrypto: Signatures has timing side-channel in ML-DSA decomposition","description":"RustCrypto: Signatures offers support for digital signatures, which provide authentication of data using public-key cryptography. Prior to version 0.1.0-rc.2, a timing side-channel was discovered in the Decompose algorithm which is used during ML-DSA signing to generate hints for the signature. This issue has been patched in version 0.1.0-rc.2.","publishedAt":"2026-01-10T06:14:20.292Z","updatedAt":"2026-01-12T16:43:06.463Z","severity":{"score":6.4,"label":"Medium","version":"3.1","vector":"CVSS:3.1/AV:A/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:N","source":"GitHub_M"},"assigner":"GitHub_M","products":["RustCrypto signatures"],"affected":[{"vendor":"RustCrypto","product":"signatures","versions":[{"version":"< 0.1.0-rc.2","status":"affected"}]}],"references":["https://github.com/RustCrypto/signatures/security/advisories/GHSA-hcp2-x6j4-29j7","https://github.com/RustCrypto/signatures/pull/1144","https://github.com/RustCrypto/signatures/commit/035d9eef98486ecd00a8bf418c7817eb14dd6558"],"weaknesses":["CWE-1240"],"ingestedAt":"2026-10-29T20:11:21.040Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2026/22xxx/CVE-2026-22705.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-22705","state":"PUBLISHED","datePublished":"2026-01-10T06:14:20.292Z","dateUpdated":"2026-01-12T16:43:06.463Z","assignerShortName":"GitHub_M","assignerOrgId":"a0819718-46f1-4df5-94e2-005712e83aaa","dateReserved":"2026-01-08T19:23:09.857Z"},"containers":{"cna":{"title":"RustCrypto: Signatures has timing side-channel in ML-DSA decomposition","descriptions":[{"lang":"en","value":"RustCrypto: Signatures offers support for digital signatures, which provide authentication of data using public-key cryptography. Prior to version 0.1.0-rc.2, a timing side-channel was discovered in the Decompose algorithm which is used during ML-DSA signing to generate hints for the signature. This issue has been patched in version 0.1.0-rc.2."}],"affected":[{"vendor":"RustCrypto","product":"signatures","versions":[{"version":"< 0.1.0-rc.2","status":"affected"}]}],"references":[{"url":"https://github.com/RustCrypto/signatures/security/advisories/GHSA-hcp2-x6j4-29j7","name":"https://github.com/RustCrypto/signatures/security/advisories/GHSA-hcp2-x6j4-29j7","tags":["x_refsource_CONFIRM"]},{"url":"https://github.com/RustCrypto/signatures/pull/1144","name":"https://github.com/RustCrypto/signatures/pull/1144","tags":["x_refsource_MISC"]},{"url":"https://github.com/RustCrypto/signatures/commit/035d9eef98486ecd00a8bf418c7817eb14dd6558","name":"https://github.com/RustCrypto/signatures/commit/035d9eef98486ecd00a8bf418c7817eb14dd6558","tags":["x_refsource_MISC"]}],"metrics":[{"cvssV3_1":{"attackComplexity":"HIGH","attackVector":"ADJACENT_NETWORK","availabilityImpact":"NONE","baseScore":6.4,"baseSeverity":"MEDIUM","confidentialityImpact":"HIGH","integrityImpact":"HIGH","privilegesRequired":"LOW","scope":"UNCHANGED","userInteraction":"NONE","vectorString":"CVSS:3.1/AV:A/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:N","version":"3.1"}}],"problemTypes":[{"descriptions":[{"cweId":"CWE-1240","lang":"en","description":"CWE-1240: Use of a Cryptographic Primitive with a Risky Implementation","type":"CWE"}]}],"providerMetadata":{"shortName":"GitHub_M","orgId":"a0819718-46f1-4df5-94e2-005712e83aaa","dateUpdated":"2026-01-10T06:14:20.292Z"},"source":{"advisory":"GHSA-hcp2-x6j4-29j7","discovery":"UNKNOWN"}},"adp":[{"title":"CISA ADP Vulnrichment","metrics":[{"other":{"type":"ssvc","content":{"timestamp":"2026-01-12T16:42:51.482698Z","id":"CVE-2026-22705","options":[{"Exploitation":"none"},{"Automatable":"no"},{"Technical Impact":"total"}],"role":"CISA Coordinator","version":"2.0.3"}}}],"providerMetadata":{"shortName":"CISA-ADP","orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","dateUpdated":"2026-01-12T16:43:06.463Z"}}]}}}