CVE-2024-21670 impacts Hyperledger Ursa, a cryptographic library used in blockchains, specifically within its CL-Signatures revocation schema. A flaw allows malicious holders of revoked credentials to generate valid non-revocation proofs, deceiving verifiers into accepting credentials as unrevoked. Rated 8.1 HIGH (CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H), this vulnerability has a high impact on confidentiality, integrity, and availability, with a network attack vector and high attack complexity. Ursa is end-of-life, so no fix is expected, and there is currently no evidence of active exploitation, public exploit code, or significant community discussion.
| Vendor | Product | Version(s) | CPE |
|---|---|---|---|
0.1.0CPE matchmatch criteria | cpe:2.3:a:hyperledger:ursa:0.1.0:*:*:*:*:rust:*:* |
CVSS version used by this source: 3.1
CVSS:3.1/AV:P/AC:H/PR:H/UI:R/S:C/C:H/I:H/A:N
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