CVE-2026-89312

`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.

Score

CVSS 4.0 6.9 Medium

Status

Deferred - emo@eclipse.org

Published

2026-10-23

Last modified

2026-10-23

Weaknesses

CWE-248

Affected products

• Eclipse Keypont - Gose (Eclipse Foundation)

References

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