{"id":"CVE-2024-22192","state":"PUBLISHED","title":"Ursa CL-Signatures Revocation allows verifiers to generate unique identifiers for holders","description":"Ursa is a cryptographic library for use with blockchains. The revocation scheme that is part of the Ursa CL-Signatures implementations has a flaw that could impact the privacy guarantees defined by the AnonCreds verifiable credential model. Notably, a malicious verifier may be able to generate a unique identifier for a holder providing a verifiable presentation that includes a Non-Revocation proof. The impact of the flaw is that a malicious verifier may be able to determine a unique identifier for a holder presenting a Non-Revocation proof. Ursa has moved to end-of-life status and no fix is expected.","publishedAt":"2024-01-16T21:44:53.121Z","updatedAt":"2025-06-16T19:46:20.983Z","severity":{"score":6.5,"label":"Medium","version":"3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N","source":"GitHub_M"},"assigner":"GitHub_M","products":["hyperledger-archives ursa"],"affected":[{"vendor":"hyperledger-archives","product":"ursa","versions":[{"version":"<= 0.3.7","status":"affected"}]}],"references":["https://github.com/hyperledger-archives/ursa/security/advisories/GHSA-6698-mhxx-r84g"],"weaknesses":["CWE-327"],"ingestedAt":"2026-10-29T20:06:59.846Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2024/22xxx/CVE-2024-22192.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.1","cveMetadata":{"cveId":"CVE-2024-22192","state":"PUBLISHED","datePublished":"2024-01-16T21:44:53.121Z","dateUpdated":"2025-06-16T19:46:20.983Z","assignerShortName":"GitHub_M","assignerOrgId":"a0819718-46f1-4df5-94e2-005712e83aaa","dateReserved":"2024-01-08T04:59:27.370Z"},"containers":{"cna":{"title":"Ursa CL-Signatures Revocation allows verifiers to generate unique identifiers for holders","descriptions":[{"lang":"en","value":"Ursa is a cryptographic library for use with blockchains. The revocation scheme that is part of the Ursa CL-Signatures implementations has a flaw that could impact the privacy guarantees defined by the AnonCreds verifiable credential model. Notably, a malicious verifier may be able to generate a unique identifier for a holder providing a verifiable presentation that includes a Non-Revocation proof. The impact of the flaw is that a malicious verifier may be able to determine a unique identifier for a holder presenting a Non-Revocation proof. Ursa has moved to end-of-life status and no fix is expected."}],"affected":[{"vendor":"hyperledger-archives","product":"ursa","versions":[{"version":"<= 0.3.7","status":"affected"}]}],"references":[{"url":"https://github.com/hyperledger-archives/ursa/security/advisories/GHSA-6698-mhxx-r84g","name":"https://github.com/hyperledger-archives/ursa/security/advisories/GHSA-6698-mhxx-r84g","tags":["x_refsource_CONFIRM"]}],"metrics":[{"cvssV3_1":{"attackComplexity":"LOW","attackVector":"NETWORK","availabilityImpact":"NONE","baseScore":6.5,"baseSeverity":"MEDIUM","confidentialityImpact":"HIGH","integrityImpact":"NONE","privilegesRequired":"NONE","scope":"UNCHANGED","userInteraction":"REQUIRED","vectorString":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N","version":"3.1"}}],"problemTypes":[{"descriptions":[{"cweId":"CWE-327","lang":"en","description":"CWE-327: Use of a Broken or Risky Cryptographic Algorithm","type":"CWE"}]}],"providerMetadata":{"shortName":"GitHub_M","orgId":"a0819718-46f1-4df5-94e2-005712e83aaa","dateUpdated":"2024-01-16T21:44:53.121Z"},"source":{"advisory":"GHSA-6698-mhxx-r84g","discovery":"UNKNOWN"}},"adp":[{"title":"CVE Program Container","references":[{"url":"https://github.com/hyperledger-archives/ursa/security/advisories/GHSA-6698-mhxx-r84g","name":"https://github.com/hyperledger-archives/ursa/security/advisories/GHSA-6698-mhxx-r84g","tags":["x_refsource_CONFIRM","x_transferred"]}],"providerMetadata":{"shortName":"CVE","orgId":"af854a3a-2127-422b-91ae-364da2661108","dateUpdated":"2024-08-01T22:35:34.928Z"}},{"title":"CISA ADP Vulnrichment","metrics":[{"other":{"type":"ssvc","content":{"timestamp":"2024-02-14T19:57:42.792215Z","id":"CVE-2024-22192","options":[{"Exploitation":"none"},{"Automatable":"no"},{"Technical Impact":"partial"}],"role":"CISA Coordinator","version":"2.0.3"}}}],"providerMetadata":{"shortName":"CISA-ADP","orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","dateUpdated":"2025-06-16T19:46:20.983Z"}}]}}}