CVE-2026-89312

Vulnerability Description

`AesGcmCryptor.Open` passed a caller-supplied nonce straight to `cipher.AEAD.Open` without checking its length. The Go standard library **panics** rather than returning an error when a GCM nonce is not exactly `NonceSize()` bytes, so a JWE carrying a wrong-sized IV crashes the decrypting goroutine.

Related Weaknesses (CWE)

CWE-248

References

https://github.com/eclipse-keypont/gose/security/advisories/GHSA-xx6h-2jgg-93m2

FAQ

What is CVE-2026-89312?

CVE-2026-89312 is a documented vulnerability. `AesGcmCryptor.Open` passed a caller-supplied nonce straight to `cipher.AEAD.Open` without checking its length. The Go standard library **panics** rather than returning an error when a GCM nonce is no...

How severe is CVE-2026-89312?

CVSS scoring is not yet available for CVE-2026-89312. Check NVD for updates.

Is there a patch for CVE-2026-89312?

Check the references section above for vendor advisories and patch information. Review vendor security bulletins for remediation guidance.