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CVE-2024-22192

19
FAUCET Score

CVE-2024-22192 describes a privacy flaw in the Ursa cryptographic library's CL-Signatures revocation scheme, specifically impacting the AnonCreds verifiable credential model. A malicious verifier could generate a unique identifier for a holder presenting a Non-Revocation proof, compromising privacy. Rated Medium severity (CVSS 6.5), this vulnerability requires user interaction (UI:R) and has a high confidentiality impact (C:H). Ursa is end-of-life with no fix expected, and there is currently no evidence of active exploitation, public exploit code, or significant community discussion.

Impacted Technologies

VendorProductVersion(s)CPE
0.1.0CPE matchmatch criteria
cpe:2.3:a:hyperledger:ursa:0.1.0:*:*:*:*:rust:*:*

CVSS Data

CVSS version used by this source: 3.1

6.5MEDIUM

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
REQUIRED
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
NONE
Availability Impact
NONE
Exploitability Score
2.8
Impact Score
3.6
CvssVersion
3.1

Exploit Intelligence

EPSS Score
0.32%
Probability of exploitation in next 30 days
EPSS Percentile
24.0%
Percentile rank of EPSS score among Peer Group
As of 2026-07-26
Model: v2026.06.15
This CVE's current EPSS score of 0.0032 is in the 24th percentile among its peer group of 26,220 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.1 Bluesky, 0.0 Mastodon, and 0.1 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.1 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Patch Available

Vendor Patches (2)

rustpatch availablevia ghsa
Product: anoncreds-clsignaturesFixed in: 0.1.0
github_advisoryvendor investigatingvia nvd_reference
View patch

Vendor Advisories (1)

rustGHSA-6698-mhxx-r84gmedium

Ursa CL-Signatures Revocation allows verifiers to generate unique identifiers for holders

Jan 16, 2024

References

github.com / hyperledger-archives/ursa/security/advisories/GHSA-6698-mhxx-r84g
Vendor Advisory