What’s Vulnerable › Vulnerabilities
CVE-2026-89312: AesGcmCryptor.Open passes attacker-controlled nonce to cipher.AEAD.Open without length check, causing panic on wrong-size IV
- Severity: medium (CVSS 6.9 v4.0)
- Exploited in the wild: not listed in CISA KEV
- EPSS: 0.3% probability of exploitation in the next 30 days
- Public exploit or detection template: none known
- Published: 2026-10-23 · updated 2026-10-23
- Weakness: CWE-248
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 products
- Eclipse Foundation Eclipse KeyPont - GOSE: from 0.7.3 through 0.13.0-rc1; before 1.0.0-rc4 — fixed in 1.0.0-rc4
How to fix
Upgrade to a fixed version: Eclipse Foundation Eclipse KeyPont - GOSE 1.0.0-rc4. Check the vendor advisory for mitigations.
References
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