CVE-2026-111714

LOW 3.1

tarteaucitron.js before 1.37.0 ReDoS via Unescaped Cookie Name in cookie.purge

CVSS Score

3.1

EPSS Score

0.0%

EPSS Percentile

0th

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.

CWE	CWE-1333
Vendor	amauric
Product	tarteaucitron.js
Published	Oct 16, 2026

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CVSS v3 Breakdown

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

Attack Vector

Network

Attack Complexity

High

Privileges Required

None

User Interaction

Required

Scope

Unchanged

Confidentiality

None

Integrity

None

Availability

Low

Affected Versions

AmauriC / tarteaucitron.js

0 < 1.37.0

References

NVD ↗ CVE.org ↗ EPSS Data ↗

github.com: https://github.com/AmauriC/tarteaucitron.js/commit/60faaba5fd541cad770549d422fc4ac7de657e56 github.com: https://github.com/AmauriC/tarteaucitron.js/releases/tag/v1.37.0 github.com: https://github.com/AmauriC/tarteaucitron.js/blob/v1.36.0/tarteaucitron.js#L2169-L2175 vulncheck.com: https://www.vulncheck.com/advisories/tarteaucitron-js-before-1.37.0-redos-via-unescaped-cookie-name-in-cookie-purge

Credits

Zachariah Mithani