CVE-2026-33204: SimpleJWT has an Unauthenticated Denial of Service via JWE header tampering

high Affects kelvinmo/simplejwt. Feed 2026.10.29.1, updated 2026-10-28; published 2026-03-18; advisory modified 2026-03-25.

SimpleJWT has an Unauthenticated Denial of Service via JWE header tampering

Package: kelvinmo/simplejwt Composer
Affected versions: <1.1.1
Fixed in: 1.1.1
Severity: high CVSS 7.5
Exploitation: not on CISA KEV · EPSS 0% (42.0th percentile)
Published: 2026-03-18
Source: osv.dev

References

CWE-400

NVD record kelvinmo/simplejwt advisories

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