MediumVulnerabilityCVE-2026-115922updated 30 Oct 2026, 18:22 UTC
ONNX: Denial of service via unchecked expansion of packed sub-byte tensors in ONNX Python APIs
Fixed in onnx 1.22.0Official, 2 sources
| Severity | MediumCVSS 6.2 of 10 |
|---|---|
| Being exploited? | UnclearNo reports either way yet |
| Fix available? | Yesonnx 1.22.0 · since 28 Oct 2026 |
| How sure is this? | Official, 2 sourcesBacked by an official source |
Are you affected?
| Package / product | Affected versions | Fixed in |
|---|---|---|
| onnx · pip | <= 1.21.0 | 1.22.0 |
Timeline
- 26 Oct 2026, 18:17 UTCPublicly disclosed
- 28 Oct 2026, 21:16 UTCReported by GitHub Advisory · GitHub Advisory
- 28 Oct 2026, 21:16 UTCPicked up by Zero Radar
- 30 Oct 2026, 18:22 UTCNVD reported on it · NVD
Sources 2 reports, oldest first
Official vendor, government CERT or advisory database
- CVE-2026-115922NVD · 26 Oct 2026, 18:17 UTC
- ONNX: Denial of service via unchecked expansion of packed sub-byte tensors in ONNX Python APIsGitHub Advisory · 28 Oct 2026, 21:16 UTC
Technical details
- ID
- CVE-2026-115922 · GHSA-q69g-f4f5-v8m7
- CVSS
- 6.2 / 10
- EPSS
- 0.1% chance of exploitation within 30 days
- Disclosed
- 26 Oct 2026, 18:17 UTC
- On Zero Radar
- 28 Oct 2026, 21:16 UTC (2 days after disclosure)
- Last change
- 30 Oct 2026, 18:22 UTC
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