# ONNX vulnerabilities

Source: https://junglewise.ai/threats/vendors/onnx  
Publisher: Junglewise Threat Intelligence, https://junglewise.ai/threats  
Updated: 12 November 2026, 03:07 UTC. Rebuilt every hour.  
Data: https://junglewise.ai/threats/vendors/onnx.json  
License: CC BY 4.0 with a link back

Junglewise Threat Intelligence has tracked 7 vulnerabilities in ONNX: 0 in the last 7 days and 4 in the last 90 days, 0 of them critical and 0 exploited in the wild. The most recent, CVE-2026-115922, was published on 26 October 2026. 4 vulnerabilities in the last four weeks, up from none in the four before. 1 technology has a page of its own.

## Counts

- Last 7 days: 0
- Last 30 days: 4
- Last 90 days: 4
- All time: 7 (0 critical, 0 exploited in the wild)

## About ONNX

Open standard format for representing machine learning models that enables interoperability across different frameworks and tools.

## Latest ONNX vulnerabilities

- [CVE-2026-115922: ONNX memory exhaustion in packed tensor unpacking](https://junglewise.ai/threats/cve-2026-115922-open-neural-network-exchange-onnx-is-an-open-standard-for) (medium, CVSS 6.2, published 26 Oct 2026)
- [CVE-2026-115921: ONNX null pointer dereference in shape inference](https://junglewise.ai/threats/cve-2026-115921-open-neural-network-exchange-onnx-is-an-open-standard-for) (medium, CVSS 6.2, published 26 Oct 2026)
- [CVE-2026-115920: ONNX ConvTranspose shape inference denial of service](https://junglewise.ai/threats/cve-2026-115920-open-neural-network-exchange-onnx-is-an-open-standard-for) (medium, CVSS 6.2, published 26 Oct 2026)
- [CVE-2026-115919: ONNX out-of-bounds read in RNN shape inference](https://junglewise.ai/threats/cve-2026-115919-open-neural-network-exchange-onnx-is-an-open-standard-for) (medium, CVSS 6.2, published 26 Oct 2026)
- [CVE-2026-11329: onnx onnx-mlir weak hash in Placeholder Node Cache Handler](https://junglewise.ai/threats/cve-2026-11329-onnx-onnx-mlir-weak-hash-in-placeholder-node-cache-handler) (low, CVSS 3.6, published 5 Jun 2026)
- [CVE-2026-34447: ONNX symlink traversal in external data loading](https://junglewise.ai/threats/cve-2026-34447-onnx-symlink-traversal-in-external-data-loading) (medium, CVSS 5.5, published 1 Apr 2026)
- [CVE-2026-27489: ONNX path traversal via symlink in external data handling](https://junglewise.ai/threats/cve-2026-27489-onnx-path-traversal-via-symlink-in-external-data-handling) (high, CVSS 7.5, published 1 Apr 2026)

## Most severe ONNX vulnerabilities

- [CVE-2026-27489: ONNX path traversal via symlink in external data handling](https://junglewise.ai/threats/cve-2026-27489-onnx-path-traversal-via-symlink-in-external-data-handling) (high, CVSS 7.5, published 1 Apr 2026)
- [CVE-2026-115920: ONNX ConvTranspose shape inference denial of service](https://junglewise.ai/threats/cve-2026-115920-open-neural-network-exchange-onnx-is-an-open-standard-for) (medium, CVSS 6.2, published 26 Oct 2026)
- [CVE-2026-115919: ONNX out-of-bounds read in RNN shape inference](https://junglewise.ai/threats/cve-2026-115919-open-neural-network-exchange-onnx-is-an-open-standard-for) (medium, CVSS 6.2, published 26 Oct 2026)
- [CVE-2026-115922: ONNX memory exhaustion in packed tensor unpacking](https://junglewise.ai/threats/cve-2026-115922-open-neural-network-exchange-onnx-is-an-open-standard-for) (medium, CVSS 6.2, published 26 Oct 2026)
- [CVE-2026-115921: ONNX null pointer dereference in shape inference](https://junglewise.ai/threats/cve-2026-115921-open-neural-network-exchange-onnx-is-an-open-standard-for) (medium, CVSS 6.2, published 26 Oct 2026)
- [CVE-2026-34447: ONNX symlink traversal in external data loading](https://junglewise.ai/threats/cve-2026-34447-onnx-symlink-traversal-in-external-data-loading) (medium, CVSS 5.5, published 1 Apr 2026)
- [CVE-2026-11329: onnx onnx-mlir weak hash in Placeholder Node Cache Handler](https://junglewise.ai/threats/cve-2026-11329-onnx-onnx-mlir-weak-hash-in-placeholder-node-cache-handler) (low, CVSS 3.6, published 5 Jun 2026)

## Vulnerabilities per week

4 vulnerabilities in the last four weeks, up from none in the four before.

| Week of | Vulns | Critical | Exploited |
| --- | --- | --- | --- |
| 17 Aug 2026 | 0 | 0 | 0 |
| 24 Aug 2026 | 0 | 0 | 0 |
| 31 Aug 2026 | 0 | 0 | 0 |
| 7 Sep 2026 | 0 | 0 | 0 |
| 14 Sep 2026 | 0 | 0 | 0 |
| 21 Sep 2026 | 0 | 0 | 0 |
| 28 Sep 2026 | 0 | 0 | 0 |
| 5 Oct 2026 | 0 | 0 | 0 |
| 12 Oct 2026 | 0 | 0 | 0 |
| 19 Oct 2026 | 0 | 0 | 0 |
| 26 Oct 2026 | 4 | 0 | 0 |
| 2 Nov 2026 | 0 | 0 | 0 |
| 9 Nov 2026 | 0 | 0 | 0 |

## ONNX technologies

- [ONNX](https://junglewise.ai/threats/technologies/onnx-onnx): 6 vulnerabilities

## Sources

NVD, GitHub Security Advisories, OSV, the CISA Known Exploited Vulnerabilities catalog, FIRST EPSS and vendor advisories. Rebuilt every hour. Cite as: Junglewise Threat Intelligence, "ONNX vulnerabilities", https://junglewise.ai/threats/vendors/onnx, 12 November 2026.