undici vulnerable to cross-user information disclosure via shared cache whitespace bypass

Publishers link these advisories through the identifiers shown below. A shared identifier or date alone does not tell you whether your software is affected or whether the advisories describe the same cause.

CVE-2026-9678 · CVE overview and exploitation status

EUVD-2026-37766

GHSA-pr7r-676h-xcf6

cve-program · CVE-2026-9678

• https://github.com/nodejs/undici/security/advisories/GHSA-pr7r-676h-xcf6
• https://cna.openjsf.org/security-advisories.html

euvd · EUVD-2026-37766

• https://github.com/nodejs/undici/security/advisories/GHSA-pr7r-676h-xcf6
• https://cna.openjsf.org/security-advisories.html

nvd · CVE-2026-9678

• https://cna.openjsf.org/security-advisories.html
• https://github.com/nodejs/undici/security/advisories/GHSA-pr7r-676h-xcf6

osv · GHSA-pr7r-676h-xcf6

• https://github.com/nodejs/undici/security/advisories/GHSA-pr7r-676h-xcf6
• https://nvd.nist.gov/vuln/detail/CVE-2026-9678
• https://cna.openjsf.org/security-advisories.html
• https://github.com/nodejs/undici

• Impact: · Advisory content revised · 11 Nov 2026
• Impact: · Advisory content revised · 9 Nov 2026
• Impact: · Advisory content revised · 1 Nov 2026