undici vulnerable to cross-user information disclosure via whitespace around equals in Cache-Control directives

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-2026-14643 · CVE overview and exploitation status

EUVD-2026-50567

GHSA-jr45-8vmc-qm54

cve-program · CVE-2026-14643

• https://github.com/nodejs/undici/security/advisories/GHSA-jr45-8vmc-qm54
• https://cna.openjsf.org/security-advisories.html

euvd · EUVD-2026-50567

• https://github.com/nodejs/undici/security/advisories/GHSA-jr45-8vmc-qm54
• https://cna.openjsf.org/security-advisories.html

nvd · CVE-2026-14643

• https://cna.openjsf.org/security-advisories.html
• https://github.com/nodejs/undici/security/advisories/GHSA-jr45-8vmc-qm54

osv · GHSA-jr45-8vmc-qm54

• https://github.com/nodejs/undici/security/advisories/GHSA-jr45-8vmc-qm54
• https://nvd.nist.gov/vuln/detail/CVE-2026-14643
• https://github.com/nodejs/undici/commit/85a240551c9feb8b8a0ecc56c84b2b3015add8a9
• https://github.com/nodejs/undici/commit/cb105d7c79069150982fa11acada0dd94a60dbbc
• https://cna.openjsf.org/security-advisories.html
• https://github.com/nodejs/undici
• https://github.com/nodejs/undici/releases/tag/v7.29.0
• https://github.com/nodejs/undici/releases/tag/v8.9.0

• undici's cache interceptor mishandles optional whitespace placed around the equals sign of a qualified no-cache or private Cache-Control directive. In undici from 7.0.0 up to before 7.29.0 and from 8.0.0 up to before 8.9.0, the parser eithe… · Advisory content revised · 11 Nov 2026