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Fencer Intel
critical —

GHSA-4rr6-gf59-ggw5 json

namshi/jose - Verification bypass

published 2y ago modified last yr.

cvss
—
not scored
cisa kev
Not listed
not in CISA's catalog
epss
—
no score, EPSS covers CVEs only
public exploits
0
none known

Summary

Several widely-used JSON Web Token (JWT) libraries, including node-jsonwebtoken, pyjwt, namshi/jose, php-jwt, and jsjwt, are affected by critical vulnerabilities that could allow attackers to bypass the verification step when using asymmetric keys (RS256, RS384, RS512, ES256, ES384, ES512).

Patch / fix

  • packagist namshi/jose 2.2.0

Is GHSA-4rr6-gf59-ggw5 in your dependencies? Fencer shows which of your repositories are affected as soon as an advisory lands, and opens the fix as a pull request.

Check with Fencer

Affected packages

ecosystem package affected fixed in
packagist namshi/jose
<2.2.0
2.2.0

References

Sources

Fencer Intel keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.