CVE catalog

CVE-2026-34446

Open Neural Network Exchange (ONNX) is an open…

[CVE catalog]

Open Neural Network Exchange (ONNX) is an open standard for machine learning interoperability. Prior to version 1.21.0, there is an issue in onnx.load, the code checks for symlinks to prevent path traversal, but completely misses hardlinks because a hardlink looks exactly like a regular file on the filesystem. This issue has been patched in version 1.21.0.

Severity
Medium · CVSS 4.7CVSS:3.1/AV:L/AC:H/PR:N/UI:R/S:U/C:H/I:N/A:N
Published
Source
[NVD] · [CVE record]
EPSS
0.18% · Oct 27, 2026

Projects and upstream resources

Reported versions and fixes

Each observation applies to its named package, distribution, and release. Distribution backports can fix a vulnerability while retaining an older upstream version number.

Version impact has not been established. The original provider fields are retained below.

Provider details and historical evidence
Original provider fields
{
  "package_releases": [
    {
      "name": "onnx",
      "status": "vulnerable",
      "release": "sid",
      "version": "1.20.0-6"
    },
    {
      "name": "onnx",
      "status": "vulnerable",
      "release": "forky",
      "version": "1.20.0-6"
    },
    {
      "name": "onnx",
      "status": "vulnerable",
      "release": "trixie",
      "version": "1.17.0-3"
    },
    {
      "name": "onnx",
      "status": "vulnerable",
      "release": "bookworm",
      "version": "1.12.0-2"
    }
  ],
  "fixed_versions": [
    {
      "bug": 1132607,
      "name": "onnx",
      "type": "source",
      "origin": null,
      "release": "sid",
      "urgency": "not yet assigned",
      "fixed_version": ""
    },
    {
      "bug": 1132607,
      "name": "onnx",
      "type": "source",
      "origin": null,
      "release": "forky",
      "urgency": "not yet assigned",
      "fixed_version": ""
    },
    {
      "bug": 1132607,
      "name": "onnx",
      "type": "source",
      "origin": null,
      "release": "trixie",
      "urgency": "not yet assigned",
      "fixed_version": ""
    },
    {
      "bug": 1132607,
      "name": "onnx",
      "type": "source",
      "origin": null,
      "release": "bookworm",
      "urgency": "not yet assigned",
      "fixed_version": ""
    }
  ],
  "distribution_packages": [
    {
      "name": "onnx",
      "ecosystem": "cpe",
      "fixed_version": "not yet fixed"
    },
    {
      "name": "onnx",
      "ecosystem": "cpe",
      "fixed_version": "1.21.0"
    }
  ]
}

[Debian bug #1132607]

Publisher notes

[trixie] onnx: Minor issue [bookworm] onnx: Minor issue

OpenFactory catalog packages

Matching against OpenFactory catalog package versions is in progress.

[Debian 12 (Bookworm)]

  • [libonnx1]Unknown

    Source package: [onnx]

    Details (2)

    • 1.12.0-2+b4 · amd64 · bookworm

      Affected

      nvd · onnx · debian · bookworm; nvd · onnx · debian · 12

    • 1.12.0-2+b4 · arm64 · bookworm

      Affected

      nvd · onnx · debian · bookworm; nvd · onnx · debian · 12

  • [libonnx-dev]Unknown

    Source package: [onnx]

    Details (2)

    • 1.12.0-2+b4 · amd64 · bookworm

      Affected

      nvd · onnx · debian · bookworm; nvd · onnx · debian · 12

    • 1.12.0-2+b4 · arm64 · bookworm

      Affected

      nvd · onnx · debian · bookworm; nvd · onnx · debian · 12

  • [libonnxifi]Unknown

    Source package: [onnx]

    Details (2)

    • 1.12.0-2+b4 · amd64 · bookworm

      Affected

      nvd · onnx · debian · bookworm; nvd · onnx · debian · 12

    • 1.12.0-2+b4 · arm64 · bookworm

      Affected

      nvd · onnx · debian · bookworm; nvd · onnx · debian · 12

  • [libonnx-testdata]Unknown

    Source package: [onnx]

    Details (2)

    • 1.12.0-2 · all · bookworm

      Affected

      nvd · onnx · debian · bookworm; nvd · onnx · debian · 12

    • 1.12.0-2 · all · bookworm

      Affected

      nvd · onnx · debian · bookworm; nvd · onnx · debian · 12

  • [python3-onnx]Unknown

    Source package: [onnx]

    Details (2)

    • 1.12.0-2+b4 · amd64 · bookworm

      Affected

      nvd · onnx · debian · bookworm; nvd · onnx · debian · 12

    • 1.12.0-2+b4 · arm64 · bookworm

      Affected

      nvd · onnx · debian · bookworm; nvd · onnx · debian · 12

[Debian 13 (Trixie)]

  • [libonnx1t64]Unknown

    Source package: [onnx]

    Details (2)

    • 1.17.0-3+b1 · amd64 · trixie

      Affected

      nvd · onnx · debian · 13

    • 1.17.0-3+b1 · arm64 · trixie

      Affected

      nvd · onnx · debian · 13

  • [libonnx-dev]Unknown

    Source package: [onnx]

    Details (2)

    • 1.17.0-3+b1 · amd64 · trixie

      Affected

      nvd · onnx · debian · 13

    • 1.17.0-3+b1 · arm64 · trixie

      Affected

      nvd · onnx · debian · 13

  • [libonnx-testdata]Unknown

    Source package: [onnx]

    Details (2)

    • 1.17.0-3 · all · trixie

      Affected

      nvd · onnx · debian · 13

    • 1.17.0-3 · all · trixie

      Affected

      nvd · onnx · debian · 13

  • [python3-onnx]Unknown

    Source package: [onnx]

    Details (2)

    • 1.17.0-3+b1 · amd64 · trixie

      Affected

      nvd · onnx · debian · 13

    • 1.17.0-3+b1 · arm64 · trixie

      Affected

      nvd · onnx · debian · 13

Observed:

References

[Debian Security Tracker] · [FIRST EPSS] · [National Vulnerability Database (NVD)] · [OSV Package Vulnerability Database] · [Red Hat security advisories and VEX]