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Low severity · published Oct 16, 2026
CVE-2026-111714
tarteaucitron.js before 1.37.0 ReDoS via Unescaped Cookie Name in cookie.purge
3.1
CVSS
0.2%
EPSS
No
On KEV
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.
CVSS vector
CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:N/I:N/A:L
Attack vector
Network
Complexity
High
Privileges
None
User interaction
Required
Confidentiality
None
Integrity
None
Availability
Low
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.2% · higher than 12% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
TA
tarteaucitron.js · AmauriC
before 1.37.0 · source: vendor
Affected product
TA
tarteaucitron.js
AmauriC
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-111714
CVE.org
https://www.cve.org/CVERecord?id=CVE-2026-111714
github.com
https://github.com/AmauriC/tarteaucitron.js/blob/v1.36.0/tarteaucitron.js#L2169-L2175
github.com
https://github.com/AmauriC/tarteaucitron.js/commit/60faaba5fd541cad770549d422fc4ac7de657e56
github.com
https://github.com/AmauriC/tarteaucitron.js/releases/tag/v1.37.0
www.vulncheck.com
https://www.vulncheck.com/advisories/tarteaucitron-js-before-1.37.0-redos-via-unescaped-cookie-name-in-cookie-purge
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