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TI-2026-80524 Aliases CVE-2026-115919GHSA-48m4-24cq-37qf

Out-of-bounds read in ONNX RNN, GRU and LSTM shape inference

Priority LOW 27CWE-125Published · Updated

Key facts

Attack vector
Local
Privileges required
None
User interaction
None
Attack complexity
Low
Impact type
Denial of service
Confidentiality · integrity · availability
None · None · High
Fix status
Partial Red Hat: 1 without a fix

Attack profile from CVSS 3.1 · CNA. Fix status from CNA, GitHub and Red Hat. Impact type from CWE-125 and the CVSS impact.

Summary

ONNX versions before 1.22.0 are affected. The RNN, GRU and LSTM shape inference functions for opsets 1 through 6 do not check that the first input has rank three, so they read outside the intended protobuf shape field (CWE-125). An attacker who supplies an untrusted model that passes onnx.checker.check_model() can crash an application that calls onnx.shape_inference.infer_shapes() on it.

Written with Claude Haiku 5.5 from the sources below · 2026-11-06

Description from the CNA

Open Neural Network Exchange (ONNX) is an open standard for machine learning interoperability. Prior to 1.22.0, RNNShapeInference_opset1_to_6() processes malformed RNN and LSTM nodes from opsets 1 through 6 and GRU nodes from opsets 3 through 6 without verifying that the first input has rank three. The function accesses dim(0) and dim(1) on an undersized protobuf shape, which can read outside the intended repeated field and terminate an application when onnx.shape_inference.infer_shapes() processes an untrusted model that can pass onnx.checker.check_model(). This issue is fixed in version 1.22.0.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00178 7th percentileScored 2026-11-07
Fix Partial onnx (onnx): 1.22.0onnx (PyPI): 1.22.0Red Hat: 1 without a fix

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
onnxonnxbefore 1.22.01.22.0Patch availableCNA
—onnx (PyPI)before 1.22.01.22.0Patch availableGHSA-48m4-24cq-37qf
  • onnx Vendoronnx Affected before 1.22.0 Fixed in 1.22.0 Patch available CNA
  • onnx (PyPI) Vendor— Affected before 1.22.0 Fixed in 1.22.0 Patch available GHSA-48m4-24cq-37qf

CPE names Threatist (inferred) · 1

Inferred from how NVD named this product before; not given by a source.

CPEVersionsRoleVendor
cpe:2.3:a:linuxfoundation:onnx:*:*:*:*:*:*:*:*——backstage
  • cpe:2.3:a:linuxfoundation:onnx:*:*:*:*:*:*:*:* Versions — — ·backstage

Remediation

Upgrade ONNX to version 1.22.0 or later for both the onnx product and the PyPI package. Red Hat lists no fix available for Red Hat OpenShift AI (RHOAI).

Written with Claude Haiku 5.5 from the sources below · 2026-11-06

  • Fix · CNA onnx (onnx) Fixed in 1.22.0
  • Fix · GHSA-48m4-24cq-37qf onnx (PyPI) Fixed in 1.22.0 Advisory →

Vendor assessments

Red Hat

Red Hat rating: Moderate. Red Hat's page for this CVE →

ProductStatusPlan or fix
Red Hat OpenShift AI (RHOAI)AffectedNo fix yet: Fix deferred

Timeline

  1. 2026-10-26 Threatist record created from CVE-2026-115919
  2. 2026-10-26 CISA SSVC decision points changed
  3. 2026-10-26 Priority changed: MEDIUM → LOW
  4. 2026-10-27 Affected versions changed · Red Hat
  5. 2026-10-27 CVSS score added · Red Hat
  6. 2026-10-28 Alias added: GHSA-48m4-24cq-37qf
  7. 2026-10-28 Fix available: PyPI/[email protected] · GHSA-48m4-24cq-37qf
  8. 2026-10-28 CVSS score added · GHSA-48m4-24cq-37qf
  9. 2026-10-28 Weakness changed · GHSA-48m4-24cq-37qf
  10. 2026-10-28 6 new references · GHSA-48m4-24cq-37qf

References

Advisory 1

Other 5

  • TI-2026-22763 ONNX Untrusted Model Repository Warnings Suppressed by silent=True in onnx.hub.load() — Silent Supply-Chain Attack CVSS 3.1CRITICAL 9.1
  • TI-2026-21896 ONNX: Path Traversal via Symlink CVSS 4.0HIGH 8.7
  • TI-2024-07209 Arbitrary File Overwrite in onnx/onnx CVSS 3.1CRITICAL 9.1
  • TI-2024-04814 Arbitrary File Overwrite in download_model_with_test_data in onnx/onnx CVSS 3.1HIGH 8.8
  • TI-2026-36338 ONNX symlink-following and path-traversal arbitrary file write CVSS 4.0MEDIUM 6.8
  • TI-2026-32442 ONNX: Null Pointer Dereference in Upsample Version Converter Adapter (Zero Inputs) CVSS 3.1MEDIUM 5.5
See all 16 →

Sources

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