Eclipse Go JWE Decryptor Crashes on Bad IV (NonceSize)
CVE-2026-89318 Published on October 23, 2026

JweRsaKeyEncryptionDecryptorImpl.Decrypt panics on attacker-chosen IV length (stdlib GCM.Open reached without nonce-size check)
`JweRsaKeyEncryptionDecryptorImpl.Decrypt` passed the JWE's initialization vector 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.

NVD

Vulnerability Analysis

CVE-2026-89318 is exploitable with network access, and does not require authorization privileges or user interaction. This vulnerability is considered to have a low attack complexity. The potential impact of an exploit of this vulnerability is considered to have no impact on confidentiality and integrity and availability.

Attack Vector:
NETWORK
Attack Complexity:
LOW
Privileges Required:
NONE
User Interaction:
NONE

Weakness Type

Uncaught Exception

An exception is thrown from a function, but it is not caught. When an exception is not caught, it may cause the program to crash or expose sensitive information.


Affected Versions

Eclipse Foundation Eclipse KeyPont - GOSE: Eclipse Foundation Eclipse KeyPont - GOSE: