6.5

CVE-2024-22192: hyperledger-archives ursa

CVSS: 6.5v3.1MediumModified
AliasesGHSA-6698-mhxx-r84g
Published 16-01-2024Last modified 16-06-2025
Open JSON

Vulnerability summary

CVE-2024-22192 is a medium (CVSS 6.5) vulnerability in hyperledger-archives ursa. EPSS estimates a 0.32% chance of exploitation in the next 30 days, higher than 23.1% of scored vulnerabilities.

Overall risk
26/100
0100
Medium · default modelHow is this calculated?
CVSS score
6.5/10
010
Medium · v3.1 (CVE.org)
EPSS score
0.32%
0%100%
Low · 0.00 pp in 30 days
KEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits0No public exploits recorded

Timeline

  1. 16-01-2024
    PublishedVulnerability first disclosed.
  2. 16-06-2025
    Last modifiedVulnerability information updated.

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.

CVSS metrics

3 scores · 3 sources · 1 version

EPSS trend

Probability

0.32%

Chance of exploitation in the next 30 days

Percentile

23%

Versus all other CVEs

30-day change

0.00 pp

From 0.32% on 19-09-2026

19-09-202619-10-2026
EPSS score
0.32%

Known exploited

Compare KEV catalogs

Not in any of the 3 tracked catalogs.

Public exploits

0 found

No public exploits indexed.

Weaknesses

CWE · root cause

Affected systems

Crates.Io2 products
  • anoncreds-clsignatures< 0.1.0
  • ursa≤ 0.3.7
Hyperledger1 product
Hyperledger-archives1 product

3 vendors · 4 products

References

4 links