Public vulnerability disclosure
CVE-2026-89319
JweDirectDecryptorBlock.Decrypt: unchecked _thales_aad length header reachable with forged tag → index-out-of-range / slice-bounds panic and unbounded allocation
publishedCWE-129
`JweDirectDecryptorBlock.Decrypt` read a 64-bit plaintext length from the `_thales_aad` protected-header field and used it without any validation. A truncated field panics `binary.BigEndian.Uint64`, an oversized value drives an unbounded allocation, and a value larger than the decrypted block panics with a slice-bounds error.
Technical severity6.3 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
|
≥ 0.9.0; ≤ 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-rc1 (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 / 6.3 medium |
CVSS:4.0/AV:N/AC:H/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-4gj8-hg2r-gw6q
exploit · ADP: CISA-ADP