undici vulnerable to downstream response desynchronization via retry interceptor

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 0.0029, the 21st percentile, on 5 Nov 2026: FIRST’s estimate of the chance of exploitation in the next 30 days.

Timeline

This record came from the full history of the GitHub Advisory Database, published 3 Aug 2026. New records show when each source confirmed them.

Sources

• GitHub Advisory Database: GHSA-8xcm-r25x-g524
• OSV: GHSA-8xcm-r25x-g524
• github.com/nodejs/undici/security/advisories/GHSA-8xcm-r25x-g524
• nvd.nist.gov/vuln/detail/CVE-2026-16728
• github.com/nodejs/undici/commit/1b5a5312c3a7d7a30c31bf0d000b39a8a2531e1c
• github.com/nodejs/undici/commit/2b3f749336d356bbbc50192f87f6cf7bc714721a
• github.com/nodejs/undici/commit/4a9dafb16ff43880cf590e6d9c2aeee25fbff6d7
• github.com/nodejs/undici/commit/4fd5a0c61e627f928b7003adc4ffe1e55ec63420
• github.com/nodejs/undici/commit/cba3a52ac2e7abcc4e656d82af8579ea82c2bb9e
• github.com/nodejs/undici/commit/e11a68ed4ff345c79402476f7a00d473443e318d
• hackerone.com/reports/3828685
• cna.openjsf.org/security-advisories.html
• github.com/nodejs/undici
• github.com/nodejs/undici/releases/tag/v6.28.0

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.