MediumVulnerabilityCVE-2026-87029updated 27 Oct 2026, 19:02 UTC
undici vulnerable to Denial of Service via unhandled exception in the decompress interceptor
Fixed in undici 7.30.1, undici 8.12.2Official source
| Severity | MediumCVSS 5.9 of 10 |
|---|---|
| Being exploited? | UnclearNo reports either way yet |
| Fix available? | Yesundici 7.30.1, undici 8.12.2 · since 27 Oct 2026 |
| How sure is this? | Official sourceBacked by an official source |
Are you affected?
| Package / product | Affected versions | Fixed in |
|---|---|---|
| undici · npm | >= 7.15.0, < 7.30.1 | 7.30.1 |
| undici · npm | >= 8.0.0, < 8.12.2 | 8.12.2 |
Timeline
- 27 Oct 2026, 19:02 UTCPublicly disclosed
- 27 Oct 2026, 19:02 UTCReported by GitHub Advisory · GitHub Advisory
- 27 Oct 2026, 19:02 UTCPicked up by Zero Radar
Sources 1 report, oldest first
Official vendor, government CERT or advisory database
- undici vulnerable to Denial of Service via unhandled exception in the decompress interceptorGitHub Advisory · 27 Oct 2026, 19:02 UTC
Technical details
- ID
- CVE-2026-87029 · GHSA-55wc-3pg8-jfw6
- CVSS
- 5.9 / 10
- EPSS
- 0.3% chance of exploitation within 30 days
- Disclosed
- 27 Oct 2026, 19:02 UTC
- On Zero Radar
- 27 Oct 2026, 19:02 UTC (1 min after disclosure)
- Last change
- 27 Oct 2026, 19:02 UTC
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