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.
Metrics
Affected Vendors & Products
Advisories
| Source | ID | Title |
|---|---|---|
EUVD |
EUVD-2022-5973 | 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. |
Github GHSA |
GHSA-75rw-34q6-72cr | Signature forgery in Biscuit |
Fixes
Solution
No solution given by the vendor.
Workaround
No workaround given by the vendor.
References
History
Wed, 16 Jul 2025 13:45:00 +0000
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Tue, 22 Apr 2025 18:15:00 +0000
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Status: PUBLISHED
Assigner: GitHub_M
Published:
Updated: 2025-04-22T17:54:16.990Z
Reserved: 2022-05-18T00:00:00.000Z
Link: CVE-2022-31053
Updated: 2024-08-03T07:03:40.292Z
Status : Modified
Published: 2022-06-13T20:15:07.820
Modified: 2024-11-21T07:03:47.747
Link: CVE-2022-31053
No data.
OpenCVE Enrichment
No data.
EUVD
Github GHSA