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CVE-2026-89312

AesGcmCryptor.Open passes attacker-controlled nonce to cipher.AEAD.Open without length check, causing panic on wrong-size IV

MEDIUM
6.9
CVSS Score
Published: October 23, 2026 at 08:36 AM UTC
Updated: October 23, 2026 at 07:30 PM UTC
1 product affected across 1 vendorEclipse KeyPont - GOSE

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Severity
MEDIUM6.9
Exploit prediction
EPSS 0.3%

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.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

Remediation

No guide yet

No remediation guidance has been written for this CVE yet, and no fixed version or vendor advisory is recorded against it.

References (1)

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

CVSS

6.9MEDIUMeclipse
Vector?

Quick Info

StatusDEFERRED
CWE
CWE-248

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