CVE-2026-27489 (GCVE-0-2026-27489)

Vulnerability from cvelistv5 – Published: 2026-04-01 17:33 – Updated: 2026-07-15 01:14
VLAI
Title
ONNX: Path Traversal via Symlink
Summary
Open Neural Network Exchange (ONNX) is an open standard for machine learning interoperability. Prior to version 1.21.0, a path traversal vulnerability via symlink allows to read arbitrary files outside model or user-provided directory. This issue has been patched in version 1.21.0.
SSVC
Exploitation: poc Automatable: yes Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-04-01 19:08 UTC
CWE
  • CWE-23 - Relative Path Traversal
  • CWE-61 - UNIX Symbolic Link (Symlink) Following
  • CWE-22 - Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')
Impacted products
Vendor Product Version CPE status
onnx onnx Affected: < 1.21.0
guessed Create a notification for this product.
Red Hat Red Hat OpenShift AI 2.25 Unaffected: 1780078312 , < * (rpm)
    cpe:/a:redhat:openshift_ai:2.25::el9
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Red Hat Red Hat OpenShift AI 2.25 Unaffected: 1780078429 , < * (rpm)
    cpe:/a:redhat:openshift_ai:2.25::el9
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Red Hat Red Hat OpenShift AI 2.25 Unaffected: 1780069222 , < * (rpm)
    cpe:/a:redhat:openshift_ai:2.25::el9
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Red Hat Red Hat OpenShift AI 2.25 Unaffected: 1780078632 , < * (rpm)
    cpe:/a:redhat:openshift_ai:2.25::el9
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Red Hat Red Hat OpenShift AI 2.25 Unaffected: 1780078416 , < * (rpm)
    cpe:/a:redhat:openshift_ai:2.25::el9
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Red Hat Red Hat OpenShift AI 2.25 Unaffected: 1780417775 , < * (rpm)
    cpe:/a:redhat:openshift_ai:2.25::el9
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Red Hat Red Hat OpenShift AI 2.25 Unaffected: 1780078388 , < * (rpm)
    cpe:/a:redhat:openshift_ai:2.25::el9
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Red Hat Red Hat OpenShift AI 2.25 Unaffected: 1780069146 , < * (rpm)
    cpe:/a:redhat:openshift_ai:2.25::el9
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Red Hat Red Hat OpenShift AI 2.25 Unaffected: 1780078413 , < * (rpm)
    cpe:/a:redhat:openshift_ai:2.25::el9
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Red Hat Red Hat OpenShift AI 2.25 Unaffected: 1780069226 , < * (rpm)
    cpe:/a:redhat:openshift_ai:2.25::el9
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Red Hat Red Hat OpenShift AI 2.25 Unaffected: 1780078629 , < * (rpm)
    cpe:/a:redhat:openshift_ai:2.25::el9
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Red Hat Red Hat OpenShift AI 2.25 Unaffected: 1780078414 , < * (rpm)
    cpe:/a:redhat:openshift_ai:2.25::el9
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Red Hat Red Hat OpenShift AI (RHOAI)     cpe:/a:redhat:openshift_ai
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Show details on NVD website

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        "dateReserved": "2026-02-19T19:46:03.541Z",
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    }
  }
}



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Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.

Sightings

Author Source Type Date Other

Nomenclature

  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
  • Confirmed: The vulnerability has been validated from an analyst's perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
  • Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
  • Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
  • Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
  • Not confirmed: The user expressed doubt about the validity of the vulnerability.
  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.

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Related by attack behaviour

Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.


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