Improper Verification of Cryptographic Signature Affecting langfuse-3 package, versions <3.146.0-r1


Severity

Recommended
0.0
medium
0
10

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Threat Intelligence

EPSS
0.14% (5th percentile)

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  • Snyk IDSNYK-CHAINGUARDLATEST-LANGFUSE3-15010762
  • published16 Jan 2026
  • disclosed13 Jan 2026

Introduced: 13 Jan 2026

CVE-2026-22817  (opens in a new tab)
CWE-347  (opens in a new tab)

How to fix?

Upgrade Chainguard langfuse-3 to version 3.146.0-r1 or higher.

NVD Description

Note: Versions mentioned in the description apply only to the upstream langfuse-3 package and not the langfuse-3 package as distributed by Chainguard. See How to fix? for Chainguard relevant fixed versions and status.

Hono is a Web application framework that provides support for any JavaScript runtime. Prior to 4.11.4, there is a flaw in Hono’s JWK/JWKS JWT verification middleware allowed the JWT header’s alg value to influence signature verification when the selected JWK did not explicitly specify an algorithm. This could enable JWT algorithm confusion and, in certain configurations, allow forged tokens to be accepted. As part of this fix, the JWT middleware now requires the alg option to be explicitly specified. This prevents algorithm confusion by ensuring that the verification algorithm is not derived from untrusted JWT header values. This vulnerability is fixed in 4.11.4.

CVSS Base Scores

version 3.1