What is CVE-2026-48524?

CVE-2026-48524 is a low-severity vulnerability in Jpadilla Pyjwt, classified under CWE-460. CVSS score: 3.7/10. Published 2026-05-28.

How severe is CVE-2026-48524?

Low severity. CVSS v3 base score is 3.7 out of 10.

Vulnerability in Jpadilla Pyjwt

CVE-2026-48524

PyJWT is a JSON Web Token implementation in Python. Prior to 2.13.0, PyJWKClient.get_signing_key() forces a fresh HTTP request to the JWKS endpoint for every JWT with an unknown kid value, with no rate limiting. Since kid comes from the un…

EPSS: 0.001 (18.0th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 3.7 (Low). Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:L.

Affected products

Jpadilla Pyjwt — versions < 2.13.0
Pyjwt_project Pyjwt

Weakness classification (CWE)

CWE-460
CWE-755 — Improper Handling of Exceptional Conditions

References

security-advisories@github.com (x_refsource_CONFIRM, Mitigation, Vendor Advisory)

Frequently asked questions

What is CVE-2026-48524?: CVE-2026-48524 is a low-severity vulnerability in Jpadilla Pyjwt, classified under CWE-460. CVSS score: 3.7/10. Published 2026-05-28.
How severe is CVE-2026-48524?: Low severity. CVSS v3 base score is 3.7 out of 10.