Is pyjwt affected by CVE-2026-48525?

PyPI pyjwt is affected in >=2.8.0 <2.13.0.

Is CVE-2026-48525 being exploited?

Not on the CISA KEV list. EPSS exploit probability is 0.4%.

medium

CVE-2026-48525

Q: Is CVE-2026-48525 being exploited?

Not on the CISA KEV list. EPSS exploit probability is 0.4%.

PyPI · pyjwt

Summary

PyJWT: Unauthenticated DoS via unbounded Base64URL decoding of unused payload segment in b64=false detached JWS

Severity: medium
EPSS: 0.4% (p31)
Also known as: GHSA-w7vc-732c-9m39, PYSEC-2026-178
Published: 2026-06-15

References

https://github.com/jpadilla/pyjwt/security/advisories/GHSA-w7vc-732c-9m39
https://nvd.nist.gov/vuln/detail/CVE-2026-48525
https://github.com/jpadilla/pyjwt

Related advisories

GHSA-pxh4-856f-4h89 — high · PyPI/pyjwt
CVE-2026-102271 — high · PyPI/pyjwt
CVE-2026-48526 — high · PyPI/pyjwt
CVE-2026-32597 — high · PyPI/pyjwt
CVE-2025-45768 — high · PyPI/pyjwt
CVE-2026-102270 — medium · PyPI/pyjwt
CVE-2026-101917 — medium · PyPI/pyjwt
CVE-2026-48522 — medium · PyPI/pyjwt

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Sources: CISA KEV (public domain), OSV.dev & GitHub Advisory Database (CC-BY-4.0), FIRST EPSS, NVD/CWE (public domain). Served live from the Stateward advisory database.