MEDIUMPyPI →
PyJWKClient unbounded JWKS endpoint requests via attacker-controlled kid values (DoS)
PyJWKClient unbounded JWKS endpoint requests via attacker-controlled kid values (DoS)
Affected packages
- pyjwt— 2.0.0 → 2.13.0
Exploit signal
- Known exploited (CISA KEV)
- No
- EPSS score
- 0.34%
- EPSS percentile
- 26.2%
EPSS is the probability a CVE is exploited in the wild; percentile is its rank among all CVEs. This advisory is in the top 26%.
Sources
- https://github.com/jpadilla/pyjwt/security/advisories/GHSA-fhv5-28vv-h8m8
- https://nvd.nist.gov/vuln/detail/CVE-2026-48524
- https://github.com/github/advisory-database/pull/8522
- https://github.com/jpadilla/pyjwt
- https://github.com/pypa/advisory-database/tree/main/vulns/pyjwt/PYSEC-2026-177.yaml
Structured record: https://osv.dev/vulnerability/GHSA-fhv5-28vv-h8m8
Recommended response stack
Snyk — Scan your dependencies in CI and fix this vulnerability.→Socket — Detect malicious and compromised packages before they ship.→
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