undici vulnerable to cookie attribute injection via unsanitized domain and unparsed setCookie fields

Not analysed yet

We haven’t published our analysis of this Advisory yet. Once a person has reviewed it, this page will say what’s vulnerable, what has to be true for your app to be affected, and how to check.

Severity and exploitation

• CISA KEV Not listed.
• EPSS 0.0028, the 20th percentile, on 13 Nov 2026: FIRST’s estimate of the chance of exploitation in the next 30 days.

Timeline

1. 29 Jul 2026, 14:18 UTC Published by the maintainers as a GitHub repository advisory

Sources

• GitHub Advisory Database: GHSA-v3r7-h72x-cjcm
• OSV: GHSA-v3r7-h72x-cjcm
• github.com/nodejs/undici/security/advisories/GHSA-v3r7-h72x-cjcm
• nvd.nist.gov/vuln/detail/CVE-2026-16729
• github.com/nodejs/undici/commit/10d93fc332f2c8c161982dec3833201de29891b5
• github.com/nodejs/undici/commit/3bf91ddb493e853957f3a58e155326a668ab8aef
• github.com/nodejs/undici/commit/af7484043ee075a6f216da0ad77e1dac55199235
• cna.openjsf.org/security-advisories.html
• github.com/nodejs/undici
• github.com/nodejs/undici/releases/tag/v6.28.0
• github.com/nodejs/undici/releases/tag/v7.29.0
• github.com/nodejs/undici/releases/tag/v8.9.0

Facts on this page come from the GitHub Advisory Database (CC-BY 4.0), OSV and the other sources listed, as published. We don’t reproduce full advisory descriptions, which can contain exploit code.