CVE-2022-31053

CRITICAL
Published Jun 13, 20224y ago · Modified Jun 17, 20262w ago
9.8 CVSS 3.1
Critical
Find Similar
Published Jun 13, 2022 4y ago
Last Modified Jun 17, 2026 2w ago

Description

Biscuit is an authentication and authorization token for microservices architectures. The Biscuit specification version 1 contains a vulnerable algorithm that allows malicious actors to forge valid Γ-signatures. Such an attack would allow an attacker to create a token with any access level. The version 2 of the specification mandates a different algorithm than gamma signatures and as such is not affected by this vulnerability. The Biscuit implementations in Rust, Haskell, Go, Java and Javascript all have published versions following the v2 specification. There are no known workarounds for this issue.

CVSS Details

Base Score
9.8
Exploitability
3.9
Impact
5.9
Vector string
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Attack Vector Network
Attack Complexity Low
Privileges Required None
User Interaction None
Scope Unchanged
Confidentiality High
Integrity High
Availability High

Threat Intelligence

No active exploitation signals — not in CISA KEV and no EPSS score yet.

Exploit & Patch Status
Public Exploit Known
No Patch Available

Weaknesses 1

CWE-347

Affected Products 4

VendorProductVersionRange
biscuitsecbiscuit-auth*≥1.0.0  –  ≤1.1.0
biscuitsecbiscuit-go* <2.0.0
biscuitsecbiscuit-haskell0.1.1.0any
clever-cloudbiscuit-java* <2.0.0

References 2

  • eprint.iacr.org https://eprint.iacr.org/2020/1484
    ExploitTechnical DescriptionThird Party Advisory
  • github.com https://github.com/biscuit-auth/biscuit/security/advisories/GHSA-75rw-34q6-72cr
    ExploitThird Party Advisory

Remediation

No remediation data recorded yet

Check vendor advisories and the NVD entry for patch availability.