React Router vulnerable to DoS via unbounded path expansion in __manifest endpoint

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-2026-42342 · CVE overview and exploitation status

EUVD-2026-34000

GHSA-8x6r-g9mw-2r78

cve-program · CVE-2026-42342

• https://github.com/remix-run/react-router/security/advisories/GHSA-8x6r-g9mw-2r78

euvd · EUVD-2026-34000

• https://github.com/remix-run/react-router/security/advisories/GHSA-8x6r-g9mw-2r78

nvd · CVE-2026-42342

• https://github.com/remix-run/react-router/security/advisories/GHSA-8x6r-g9mw-2r78

osv · GHSA-8x6r-g9mw-2r78

• https://github.com/remix-run/react-router/security/advisories/GHSA-8x6r-g9mw-2r78
• https://nvd.nist.gov/vuln/detail/CVE-2026-42342
• https://github.com/remix-run/react-router

No related changes are available here.