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TI-2026-79603 Aliases CVE-2026-89319

Unchecked length field in Eclipse KeyPont GOSE JWE decryption

Priority MEDIUM 61CWE-129Published · Updated

Key facts

Attack vector
Network
Privileges required
None
User interaction
None
Attack complexity
High
Attack requirements
None
Impact type
—
Confidentiality · integrity · availability
None · None · Low
Fix status
Fixed

Attack profile from CVSS 4.0 · CNA. Fix status from CNA.

Summary

Eclipse KeyPont - GOSE from 0.9.0 through 0.13.0-rc1, and from 0 before 1.0.0-rc1, is affected. The JweDirectDecryptorBlock.Decrypt function uses a 64-bit plaintext length read from the _thales_aad protected header without validating it (CWE-129). A remote attacker without credentials who sends a forged token with a truncated or oversized value can crash the process or force an unbounded memory allocation, causing denial of service.

Written with Claude Haiku 5.5 from the sources below · 2026-11-02

Description from the CNA

`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.

Why it matters now

Exploitation Proof of concept CISA SSVC · not in CISA KEV
EPSS 0.00207 10th percentileScored 2026-11-07
Fix Fixed Eclipse KeyPont - GOSE (Eclipse Foundation): 1.0.0-rc1

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
Poc
Automatable
No
Technical impact
Partial

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

VendorProductAffected versionsFixed inStatusSource
Eclipse FoundationEclipse KeyPont - GOSE0.9.0 – 0.13.0-rc1—No fix listedCNA
Eclipse FoundationEclipse KeyPont - GOSEbefore 1.0.0-rc11.0.0-rc1Patch availableCNA
  • Eclipse KeyPont - GOSE VendorEclipse Foundation Affected 0.9.0 – 0.13.0-rc1 Fixed in — No fix listed CNA
  • Eclipse KeyPont - GOSE VendorEclipse Foundation Affected before 1.0.0-rc1 Fixed in 1.0.0-rc1 Patch available CNA

Remediation

Upgrade Eclipse KeyPont - GOSE to 1.0.0-rc1, which is the listed fixed version. The sources list no fixed version for Eclipse KeyPont - GOSE from 0.9.0 through 0.13.0-rc1.

Written with Claude Haiku 5.5 from the sources below · 2026-11-02

  • Fix · CNA Eclipse KeyPont - GOSE (Eclipse Foundation) Fixed in 1.0.0-rc1

Fixed in the same release

Records fixed by the same vendor advisory or release, as the CNA lists them.

  • Release ·

    Eclipse KeyPont - GOSE 1.0.0-rc1

    2 records Highest priority Priority HIGH 1 HIGH, 1 MEDIUM

    Other records, highest priority first

    • TI-2026-79604 Constant HMAC tag in Eclipse KeyPont GOSE voids JWE integrityPriority HIGH 77
    Show all 2 records →

Timeline

  1. 2026-10-23 Threatist record created from CVE-2026-89319
  2. 2026-10-23 Priority changed: MEDIUM → LOW
  3. 2026-11-02 CISA SSVC decision points changed
  4. 2026-11-02 Priority changed: LOW → MEDIUM

References

Other 1

  • TI-2023-23979 The HTTP/2 protocol allows a denial of service (server resource consumption) because… KEVCVSS 3.1HIGH 7.5
  • TI-2026-81947 Unauthenticated command injection in Eclipse Che che-machine-exec CVSS 3.1CRITICAL 9.8
  • TI-2026-13216 CWE-863: ABAC authorization bypass via trailing slash route normalization in Eclipse BaSyx Go Components CVSS 3.1CRITICAL 9.8
  • TI-2026-06514 Path traversal in Eclipse BaSyx CVSS 3.1CRITICAL 10.0
  • TI-2026-01382 In the Eclipse Theia Website repository, the GitHub Actions workflow… CVSS 3.1CRITICAL 10.0
  • TI-2026-74697 Authentication bypass in Eclipse Jetty EthereumAuthenticator CVSS 4.0CRITICAL 9.3
See all 466 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences