What is CVE-2026-9697?

CVE-2026-9697 is a high-severity vulnerability in Undici, classified under Improper Certificate Validation. CVSS score: 7.4/10. Published 2026-06-17.

How severe is CVE-2026-9697?

High severity. CVSS v3 base score is 7.4 out of 10.

Vulnerability in Undici

CVE-2026-9697

Impact: undici's ProxyAgent silently drops the requestTls option when configured with a SOCKS5 proxy URI (socks5:// or socks://). The target HTTPS connection through the SOCKS5 tunnel falls back to Node's default trust store, ignoring user…

Vulnerability class: Improper Certificate Validation

CVSS v3 metric

CVSS v3 base score 7.4 (High). Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N.

Affected products

Undici — versions 7.23.0, 7.28.0, 8.0.0

Weakness classification (CWE)

CWE-295 — Improper Certificate Validation

References

ce714d77-add3-4f53-aff5-83d477b104bb
ce714d77-add3-4f53-aff5-83d477b104bb

Frequently asked questions

What is CVE-2026-9697?: CVE-2026-9697 is a high-severity vulnerability in Undici, classified under Improper Certificate Validation. CVSS score: 7.4/10. Published 2026-06-17.
How severe is CVE-2026-9697?: High severity. CVSS v3 base score is 7.4 out of 10.