CVE-2022-31021 describes a weakness in the Hyperledger AnonCreds specification, specifically within the Ursa cryptographic library, where a malicious issuer could potentially create weakened private keys. This could compromise the unlinkability of AnonCreds credentials, allowing an issuer to identify the holder of a credential. The vulnerability is rated as Medium severity (CVSS 5.3), with a low impact on confidentiality and no impact on integrity or availability, and can be exploited over the network with low attack complexity. There is no evidence of active exploitation, public exploit code, or significant community discussion surrounding this CVE, and the Ursa project is end-of-life with no fix expected.
| Vendor | Product | Version(s) | CPE |
|---|---|---|---|
< 0.3CPE matchmatch criteria | cpe:2.3:a:hyperledger:ursa:*:*:*:*:*:rust:*:* |
CVSS version used by this source: 3.1
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:N
No social media mentions found for this CVE.
The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.1 Bluesky, 0.0 Mastodon, and 0.4 GitHub mentions.
No media coverage found for this CVE.
The average CVE in this peer group has 0.0 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.