VulnerabilityDeferred

CVE-2025-45765

ruby-jwt v3.0.0.beta1 was discovered to contain weak encryption.

CRITICAL 9.1EPSS 0.16%

Does this matter?

High impact if exploited, but EPSS currently rates exploitation as unlikely (0.16%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.

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."

CVSS 3.1: 9.1 CRITICALCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H
EPSS: 0.16% probability · 6th percentile
CISA KEV: Not listed
Weakness: CWE-326
Source: cve@mitre.org

References

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

Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.