---
cve: "CVE-2026-89319"
severity: "MEDIUM"
cvss: 6.3
epss: ""
vendor: "Eclipse Foundation"
kev: false
exploited: false
published: "2026-10-23 09:17:08"
tags: [cve, security, medium]
source: tsecurity.de CVE-Dossier
exported: "2026-10-25T22:50:43+01:00"
---

# CVE-2026-89319

> 6.3 MEDIUM · 🧪 PoC

## Beschreibung

`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.

## CNA-Record (Kanon, cvelistV5)

- CNA: **eclipse**
- State: PUBLISHED
- Stand: 2026-10-23 08:54:37
- CNA-CVSS: **6.3** (`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`)

## CVSS-Vektor

```
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
```

| Metrik | Wert | Bewertung |
|---|---|---|
| AV Angriffsvektor | Netzwerk | bad |
| AC Komplexität | Hoch | good |
| PR Privilegien | Keine | bad |
| UI Interaktion | Keine | bad |

## Schwachstellen-Klasse

- **CWE-129** — Improper Validation of Array Index
  The product uses untrusted input when calculating or using an array index, but the product does not validate or incorrectly validates the index to ensure the index references a valid position within the array.

## Angriffsmuster (CAPEC)

- [CAPEC-100 — Overflow Buffers](https://capec.mitre.org/data/definitions/100.html) _(Severity: Very High)_

## Patch verfügbar (OSV)

- 3d12061410a75212322bd51c7c91a56b7dfbcea6 (Commit)

## Referenzen

- <https://github.com/eclipse-keypont/gose/security/advisories/GHSA-4gj8-hg2r-gw6q>

---
_Exportiert aus dem [tsecurity.de CVE-Dossier](https://tsecurity.de/sicherheitsluecken/cve-2026-89319/) · Datenquellen: EUVD (ENISA), NVD, OSV, CISA KEV, FIRST EPSS, Exploit-DB, BSI WID (CSAF)_