Is github.com/go-jose/go-jose/v3 affected by CVE-2026-34986?

Go github.com/go-jose/go-jose/v3 is affected in <3.0.5.

Is CVE-2026-34986 being exploited?

Not on the CISA KEV list. EPSS exploit probability is 0.3%.

medium

CVE-2026-34986

Q: Is CVE-2026-34986 being exploited?

Not on the CISA KEV list. EPSS exploit probability is 0.3%.

Go · github.com/go-jose/go-jose/v3 • Go · github.com/go-jose/go-jose/v4 • Go · github.com/go-jose/go-jose

Summary

Go JOSE Panics in JWE decryption in github.com/go-jose/go-jose

Severity: medium
EPSS: 0.3% (p19)
Also known as: GHSA-78h2-9frx-2jm8, GHSA-78h2-9frx-2jm8#github.com/go-jose/go-jose, GHSA-78h2-9frx-2jm8#github.com/go-jose/go-jose/v3, GHSA-78h2-9frx-2jm8#github.com/go-jose/go-jose/v4, GO-2026-4945, GO-2026-4945#github.com/go-jose/go-jose/v3, GO-2026-4945#github.com/go-jose/go-jose/v4
Published: 2026-05-26

References

https://github.com/go-jose/go-jose/security/advisories/GHSA-78h2-9frx-2jm8
https://pkg.go.dev/github.com/go-jose/go-jose/v4#pkg-constants

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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.