Public vulnerability disclosure
CVE-2026-89318
JweRsaKeyEncryptionDecryptorImpl.Decrypt panics on attacker-chosen IV length (stdlib GCM.Open reached without nonce-size check)
publishedCWE-248
`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.
Technical severity6.9 mediumCVSS 4.0 · CNA: eclipse
Published2026-10-23Source updated 2026-11-02
Collected2026-11-022 attributed sources
Fixes and workarounds
No remediation reported in collected sources.
Missing remediation information is not evidence that no patch exists.
Affected products and versions
| Product | Versions | Authority |
|---|---|---|
| Eclipse KeyPont - GOSE Eclipse Foundation github.com/ThalesGroup/gose
|
≥ 0.8.0; ≤ 0.13.0-rc1 (affected, semver)
Other versions: unaffected |
CNA: eclipse |
| Eclipse KeyPont - GOSE Eclipse Foundation github.com/eclipse-keypont/gose
|
≥ 0; < 1.0.0-rc4 (affected, semver)
Other versions: unaffected |
CNA: eclipse |
Version ranges are source assertions. Check the vendor advisory and your installed configuration before determining exposure.
CVSS assessments
| Version / score | Vector | Authority |
|---|---|---|
| 4.0 / 6.9 medium |
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N | CNA: eclipse |
Exploit evidence
- https://github.com/eclipse-keypont/gose/security/advisories/GHSA-265w-83cm-777q
exploit · ADP: CISA-ADP