CVE-2025-45770

7.0 highEPSS 0.1%

High (7.0) in jwt project jwt. EPSS 0.1% chance of exploitation in the next 30 days.

jwt v5.4.3 was discovered to contain weak encryption. NOTE: this issue has been disputed on the basis that key lengths are expected to be set by an application, not by this library. This dispute is subject to review under CNA rules 4.1.4, 4.1.14, and other rules; the dispute tagging is not meant to recommend an outcome for this CVE Record.

Severity

CVSS 3.1

7.0 high

CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:H

EPSS: 0.1% chance of exploitation in the next 30 days; higher than 3% of CVEs (scores of 2026-10-31)
CWE: CWE-326
Published: 2025-07-31
Modified: 2026-06-17
Record from: the NVD, synced 2026-10-19

Affected

jwt_project:jwt

References

https://gist.github.com/ZupeiNie/cd88c827eef11a1618f8baacccd240fb
https://github.com/lcobucci
https://github.com/lcobucci/jwt

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