CVE-2026-89318: CWE-248 Uncaught Exception in Eclipse Foundation Eclipse KeyPont - GOSE
Description
CVE-2026-89318 is a vulnerability in Eclipse KeyPont - GOSE where the Decrypt function passes an incorrectly sized initialization vector (IV) to the Go standard library's AEAD Open method without validating its length. This causes the Go library to panic, crashing the decrypting goroutine. The issue affects versions from 0 up to 1.0.0-rc4, including some release candidates. The vulnerability has a medium severity with a CVSS score of 6.9.
CVSS v4.0
Score 6.9medium
Affected software
Eclipse Foundation
Eclipse KeyPont - GOSE
Eclipse Foundation
Eclipse KeyPont - GOSE
pkg:github/github.com/ThalesGroup/gosepkg:github/github.com/eclipse-keypont/goseRun on your own infrastructure? Check whether these packages are installed with threat-finder — our free open-source scanner.
Weaknesses
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
The vulnerability arises because the JweRsaKeyEncryptionDecryptorImpl.Decrypt method does not verify the length of the JWE's initialization vector before passing it to cipher.AEAD.Open. The Go standard library's GCM implementation panics if the nonce (IV) length is not exactly NonceSize() bytes, leading to a crash of the decrypting goroutine when a JWE contains a wrong-sized IV. This is classified as CWE-248 (Uncaught Exception).
Potential Impact
An attacker can cause the decrypting goroutine to crash by sending a JWE with an incorrectly sized initialization vector. This results in denial of service for the affected process or service handling the decryption. There is no indication of privilege escalation or data compromise from the provided information.
Mitigation Recommendations
No official patch or fix is currently referenced. Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Until a fix is available, users should validate the size of the initialization vector before decryption to prevent passing invalid IVs to the cipher.AEAD.Open method.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- eclipse
- Date Reserved
- 2026-09-11T13:55:55.054Z
- Cvss Version
- 4.0
- State
- PUBLISHED
Threat ID: 6adb225b4d27ba8daaeddba5
Added to database: 10/23/2026, 09:01:15 UTC
Last enriched: 10/23/2026, 09:15:18 UTC
Last updated: 10/23/2026, 09:15:56 UTC
Views: 8
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