GHSA-pmjh-fq2x-6v4x
undici vulnerable to Denial of Service via orphaned RetryHandler response body
Quick fix
GHSA-pmjh-fq2x-6v4x — undici: upgrade to the fixed version with the command below.
npm install undici@7.29.1Details
### Impact
undici's `RetryHandler` can leave a response body pending indefinitely. When a retried request receives a non-retryable response after a truncated one, the original `response.body` held by the application is never settled, so reads such as `response.body.text()` hang and `bodyTimeout` does not fire. A malicious server can repeat this to accumulate pending promises and streams, leading to denial of service.
### Patches
Patched in undici v7.29.1 and v8.10.2.
### Workarounds
Impose an independent request deadline and destroy the response body when it expires. `bodyTimeout` alone does not prevent this.
Are you affected?
Enter the version of the package you're using.
Affected packages
References
- https://github.com/nodejs/undici/security/advisories/GHSA-pmjh-fq2x-6v4x[WEB]
- https://nvd.nist.gov/vuln/detail/CVE-2026-18149[ADVISORY]
- https://github.com/nodejs/undici/commit/3c6726599cea8646384dde846c97d630da472a74[WEB]
- https://github.com/nodejs/undici/commit/e905b5b87e6953bcc542af90557b2fee5b7b5974[WEB]
- https://hackerone.com/reports/3892751[WEB]
- https://cna.openjsf.org/security-advisories.html[WEB]
- https://github.com/nodejs/undici[PACKAGE]
- https://github.com/nodejs/undici/releases/tag/v7.29.1[WEB]
- https://github.com/nodejs/undici/releases/tag/v8.10.2[WEB]