Is undici affected by CVE-2026-6733?

npm undici is affected in =7.0.0 =8.0.0 <8.5.0.

Is CVE-2026-6733 being exploited?

Not on the CISA KEV list. EPSS exploit probability is 0.2%.

low

CVE-2026-6733

Q: Is CVE-2026-6733 being exploited?

Not on the CISA KEV list. EPSS exploit probability is 0.2%.

npm · undici

Summary

undici vulnerable to HTTP response queue poisoning via keep-alive socket reuse

Severity: low
EPSS: 0.2% (p7)
Also known as: GHSA-35p6-xmwp-9g52
Published: 2026-06-19

References

https://github.com/nodejs/undici/security/advisories/GHSA-35p6-xmwp-9g52
https://nvd.nist.gov/vuln/detail/CVE-2026-6733
https://hackerone.com/reports/3582376

Related advisories

CVE-2026-12151 — high · npm/undici
CVE-2026-6734 — high · npm/undici
CVE-2026-9697 — high · npm/undici
CVE-2026-9675 — high · npm/undici
CVE-2026-9679 — medium · npm/undici
CVE-2026-9678 — medium · npm/undici

Is your project exposed to this? Stateward checks every dependency on every pull request and flags it only if your code actually reaches it.

Check my repo

Summarize with AI

ChatGPT Claude Perplexity

Sources: CISA KEV (public domain), OSV.dev & GitHub Advisory Database (CC-BY-4.0), FIRST EPSS, NVD/CWE (public domain). Served live from the Stateward advisory database.