Medium · CVSS 6.3CVE-2026-89319

JweDirectDecryptorBlock.Decrypt: unchecked _thales_aad length header reachable with forged tag → index-out-of-range / slice-bounds panic and unbounded allocationCVE-2026-89319

Answer in brief

CVE-2026-89319 records a Medium severity (CVSS 6.3) vulnerability in JweDirectDecryptorBlock.Decrypt: unchecked _thales_aad length header reachable with forged tag → index-out-of-range / slice-bounds panic and unbounded allocation. The current sources do not mark it as known exploited. The current feed maps Eclipse Foundation/Eclipse KeyPont - GOSE (generic), Eclipse Foundation/Eclipse KeyPont - GOSE (generic). Check affected ranges and fixed versions before updating.

Analysis pending evidence review

HOL Guard separates source facts from reviewed analysis. See the methodology.

Published Oct 23, 2026Updated Oct 23, 2026Source checked Oct 25, 2026First seen by HOL Oct 23, 2026Material review Oct 23, 2026

Upstream Advisory

Key facts

Risk: Medium · CVSS 6.3
Exploitation: Not marked as known exploited
Affected software: 2 mapped packages or products
Fix availability: Available

Why this deserves its current priority

CVSS is 6.3. The current sources do not mark it as known exploited. Treat this as a source-backed prioritization signal, not a statement about your environment.

Analysis status

Analysis pending evidence review

Factual feed record only; HOL analysis is not approved for indexing. Read the methodology.

Affected scope and exposure questions

The current feed maps Eclipse Foundation/Eclipse KeyPont - GOSE (generic), Eclipse Foundation/Eclipse KeyPont - GOSE (generic). Check affected ranges and fixed versions before updating.

Mapped affected packages and fixed versions
Package	Affected range	Fixed version
Eclipse Foundation/Eclipse KeyPont - GOSEgeneric	>=0.9.0 <=0.13.0-rc1	Not reported
Eclipse Foundation/Eclipse KeyPont - GOSEgeneric	>=0 <1.0.0-rc1	1.0.0-rc1

Recommended response

Check inventory. Check lockfiles and deployed manifests for Eclipse Foundation/Eclipse KeyPont - GOSE, Eclipse Foundation/Eclipse KeyPont - GOSE.
Review the reported fix. Update Eclipse Foundation/Eclipse KeyPont - GOSE to 1.0.0-rc1 if you use the affected versions. Test the change in a non-production environment first.

Evidence timeline and material changes

Published upstream
Oct 23, 2026
Evidence: source:cvelist:source_dates:source-dates:record
Source modified
Oct 23, 2026
Evidence: source:cvelist:source_dates:source-dates:record
First seen by HOL
Oct 23, 2026

Sources and claim methodology

GitHub security advisorygithub.com

Upstream source description

`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.

Quoted source text, attributed separately from HOL analysis.