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TI-2026-71522 Aliases CVE-2026-108955GHSA-j6ch-mq7f-f9j6

Out-of-bounds read in Tiiny-AI PowerInfer GGUF parser

Priority MEDIUM 55CWE-119Published · Updated

Key facts

Attack vector
Local
Privileges required
Low
User interaction
None
Attack complexity
Low
Attack requirements
None
Impact type
—
Confidentiality · integrity · availability
Low · Low · Low
Fix status
No fix listed

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

Summary

Tiiny-AI PowerInfer up to 8bd56d69906c9d2dba4d3bf6899763401e01a9a4 contains an out-of-bounds read in the gguf_init_from_file function of ggml.c in its GGUF Parser component. The flaw comes from improper restriction of operations within the bounds of a memory buffer (CWE-119), where the data_offset argument is not checked correctly. A local attacker with low privileges can read memory outside the intended buffer. A public exploit has been disclosed.

Written with Claude Haiku 5.5 from the sources below · 2026-10-27

Description from the CNA

A vulnerability was determined in Tiiny-AI PowerInfer up to 8bd56d69906c9d2dba4d3bf6899763401e01a9a4. Impacted is the function gguf_init_from_file of the file ggml.c of the component GGUF Parser. This manipulation of the argument data_offset causes out-of-bounds read. The attack requires local access. The exploit has been publicly disclosed and may be utilized. This product uses a rolling release model to deliver continuous updates. As a result, specific version information for affected or updated releases is not available. The pull request to fix this issue awaits acceptance.

Why it matters now

Exploitation Proof of concept CISA SSVC · not in CISA KEV
EPSS 0.00112 1st percentileScored 2026-11-07
Public exploit Yes 1 exploit referenceTagged by the CNA
Fix No fix listed No fixed version in the sources yet

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
Tiiny-AIPowerInfer8bd56d69906c9d2dba4d3bf6899763401e01a9a4—No fix listedCNA
  • PowerInfer VendorTiiny-AI Affected 8bd56d69906c9d2dba4d3bf6899763401e01a9a4 Fixed in — No fix listed CNA

CPE names CNA · 1

CPEVersionsRoleVendor
cpe:2.3:a:tiiny-ai:powerinfer:*:*:*:*:*:*:*:*———
  • cpe:2.3:a:tiiny-ai:powerinfer:*:*:*:*:*:*:*:* Versions — — ·—

Remediation

The sources list no fixed version for Tiiny-AI PowerInfer. A pull request to fix this issue is pending acceptance.

Written with Claude Haiku 5.5 from the sources below · 2026-10-27

Timeline

  1. 2026-10-13 Threatist record created from CVE-2026-108955
  2. 2026-10-13 Alias added: GHSA-j6ch-mq7f-f9j6
  3. 2026-10-16 CISA SSVC decision points changed
  4. 2026-10-16 Priority changed: LOW → MEDIUM

References

Exploit 1

Other 1

  • TI-2026-71527 Out-of-bounds read in Tiiny-AI PowerInfer FFN GPU-split loader CVSS 4.0MEDIUM 4.8

Sources

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