Vulnerability in Perryts Perry
CVE-2026-53776
Perry before 0.5.1166 contains a JWT validation vulnerability that allows remote attackers to bypass token expiration by exploiting the unconditional setting of validate_exp = false in the verify_decode helper within the stdlib JWT verific…
CVSS v3 metric
CVSS v3 base score 9.1 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N.
Affected products
- Perryts Perry — versions 0
Weakness classification (CWE)
References
- disclosure@vulncheck.com (release-notes)
- disclosure@vulncheck.com (vendor-advisory)
- disclosure@vulncheck.com (third-party-advisory)
Frequently asked questions
- What is CVE-2026-53776?
- CVE-2026-53776 is a critical-severity vulnerability in Perryts Perry, classified under Insufficient Session Expiration. CVSS score: 9.1/10. Published 2026-06-16.
- How severe is CVE-2026-53776?
- Critical severity. CVSS v3 base score is 9.1 out of 10.