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TI-2026-76829 Aliases CVE-2026-91059

Out-of-bounds read in Eclipse ThreadX GUIX JPEG decoder

Priority LOW 29CWE-125Published · Updated

Key facts

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

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

Summary

Eclipse Foundation Eclipse ThreadX - GUIX versions from 0 through 6.5.1.202602a are affected. The GUIX JPEG software decoder does not enforce marker order, so a second SOF0 frame header after SOS re-parses the frame after the output buffer is sized (CWE-125). A local attacker with no privileges can cause the decoder to publish a pixelmap whose reported size exceeds its allocation when a user processes a crafted JPEG file, and consumers that trust that structure read out of bounds.

Written with Claude Haiku 5.5 from the sources below · 2026-10-28

Description from the CNA

The GUIX JPEG software decoder enforces no ordering on JPEG markers. A file that places a second `SOF0` frame header after `SOS` re-runs the frame header parser after the output buffer has already been allocated and its geometry latched. The decoder returns `GX_SUCCESS` and publishes a `GX_PIXELMAP` whose reported dimensions and `data_size` exceed the allocation behind it. Any consumer that trusts the returned structure reads out of bounds, including GUIX's own display drivers, reached through the ordinary draw path. Reproduces in the shipped default configuration; `GX_SOFTWARE_DECODER_SUPPORT` is enabled by default.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00159 5th percentileScored 2026-11-07
Fix Fixed Eclipse ThreadX - GUIX (Eclipse Foundation): 6.5.2.202603

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
None
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 ThreadX - GUIXup to 6.5.1.202602a6.5.2.202603Patch availableCNA
  • Eclipse ThreadX - GUIX VendorEclipse Foundation Affected up to 6.5.1.202602a Fixed in 6.5.2.202603 Patch available CNA

Remediation

Upgrade Eclipse ThreadX - GUIX to version 6.5.2.202603, the fixed version listed for this product.

Written with Claude Haiku 5.5 from the sources below · 2026-10-28

  • Fix · CNA Eclipse ThreadX - GUIX (Eclipse Foundation) Fixed in 6.5.2.202603

Timeline

  1. 2026-10-20 Threatist record created from CVE-2026-91059

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
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Sources

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