CVE-2026-11329

Incorrect inference via dtype-omitting cache key

Published Jun 5, 2026 · Updated Jun 5, 2026

Cache-key collision in ONNX-MLIR 0.5.0 allows local users to cause silently incorrect inference results through placeholder dtype changes. In backend.py, generate_hash_key records a placeholder's shape but omits its tensor dtype when default lightweight hashing builds the compiled-model cache key. A same-process, same-shape model with a different dtype can therefore reuse the first model's compiled shared object, corrupting inference output without an error.

CVSS severity2.0
Low
EPSS probability0.08%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Cache-key collision in ONNX-MLIR 0.5.0 allows local users to cause silently incorrect inference results through placeholder dtype changes. In backend.py, generate_hash_key records a placeholder's shape but omits its tensor dtype when default lightweight hashing builds the compiled-model cache key. A same-process, same-shape model with a different dtype can therefore reuse the first model's compiled shared object, corrupting inference output without an error.

The record

CVE
CVE-2026-11329
Published
Jun 5, 2026
Updated
Jun 5, 2026
Vendor
ONNX
Product
ONNX-MLIR
Classifications
CWE-327, CWE-328
Attack vector
local
Privileges
authenticated

Timeline

How it unfolded

  1. Jun 5, 2026CVE publishedPublication date reported by the CVE source.
  2. Jun 5, 2026Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=0.5.0

What conditions does exploitation require?

Attack vectorlocal
Required privilegesauthenticated

What is affected?

ONNX · ONNX-MLIRversion=0.5.0

Published CVSS scores

2.0UbuntuCVSS:4.0/AV:L/AC:H/AT:N/PR:L/UI:N/VC:N/VI:L/VA:L/SC:N/SI:N/SA:N
3.6UbuntuCVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:L/A:L

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

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No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectorlocal
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-327Use of a Broken or Risky Cryptographic Algorithm
CWE-328Use of Weak Hash

Public exploit references

No public exploit references are available in this record.

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Technologies

Your stack

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Your stack

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