CVE-2025-45765CRITICAL 9.1EPSS p4.7%

CVE-2025-45765CVE-2025-45765

Description

ruby-jwt v3.0.0.beta1 was discovered to contain weak encryption. NOTE: the Supplier's perspective is "keysize is not something that is enforced by this library. Currently more recent versions of OpenSSL are enforcing some key sizes and those restrictions apply to the users of this gem also."

Scoring

CVSS 3.19.1 (CRITICAL)
VectorCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H
EPSS0.15% probability of exploitation · percentile 4.7% · 2026-06-19T12:03:05Z
Published2025-08-07
Last modified2026-04-15

Underlying weaknesses· 1

CWE-326

References

  1. https://gist.github.com/ZupeiNie/c621253068ce5b64911629534879e8f9
  2. https://github.com/jwt/ruby-jwt/issues/668

1

TypeTargetConfidenceTier
WeaknessInadequate Encryption Strengthcwe-3260%live

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Sourced from NVD + FIRST.org EPSS. Curated for EU compliance use cases by Adam Lundqvist, Founder at SQUR.