{"id":"CVE-2024-22192","aliases":["GHSA-6698-mhxx-r84g"],"url":"https://o3.security/vulnerability/CVE-2024-22192","summary":"Ursa CL-Signatures Revocation allows verifiers to generate unique identifiers for holders","details":"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.","published":"2024-01-16T21:44:53.121Z","modified":"2026-08-12T03:51:48.806430999Z","cvss":{"score":6.5,"severity":"MEDIUM","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N"},"epss":null,"cisaKev":null,"exploitsKnown":0,"affectedPackages":[{"ecosystem":"crates.io","name":"ursa","fixedVersion":null},{"ecosystem":"crates.io","name":"anoncreds-clsignatures","fixedVersion":"0.1.0"}],"fix":null,"references":[{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2024/22xxx/CVE-2024-22192.json"},{"type":"ADVISORY","url":"https://github.com/hyperledger-archives/ursa/security/advisories/GHSA-6698-mhxx-r84g"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2024-22192"}],"provenance":{"sources":["OSV.dev","FIRST.org (EPSS)"],"lastVerified":"2026-08-12T03:51:48.806430999Z"}}