CVE-2026-111714

low

Description

tarteaucitron.js before 1.37.0 contains a regular expression denial of service vulnerability that allows attackers to block visitor pages by supplying unescaped cookie names to cookie.purge. Attackers can plant a cookie from a sibling subdomain or inject a purgeBtn element with a catastrophic-backtracking data-cookie pattern that freezes the page when the purge button is clicked.

References

https://www.vulncheck.com/advisories/tarteaucitron-js-before-1.37.0-redos-via-unescaped-cookie-name-in-cookie-purge

https://github.com/AmauriC/tarteaucitron.js/releases/tag/v1.37.0

https://github.com/AmauriC/tarteaucitron.js/commit/60faaba5fd541cad770549d422fc4ac7de657e56

https://github.com/AmauriC/tarteaucitron.js/blob/v1.36.0/tarteaucitron.js#L2169-L2175

https://euvd.enisa.europa.eu/vulnerability/EUVD-2026-103006

Details

Source: Mitre, NVD

Published: 2026-10-16

Updated: 2026-10-16

Risk Information

CVSS v2

Base Score: 2.6

Vector: CVSS2#AV:N/AC:H/Au:N/C:N/I:N/A:P

Severity: Low

CVSS v3

Base Score: 3.1

Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:N/I:N/A:L

Severity: Low

CVSS v4

Base Score: 2.3

Vector: CVSS:4.0/AV:N/AC:H/AT:P/PR:N/UI:P/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N

Severity: Low

EPSS

EPSS: 0.00218