CVE-2026-111714
tarteaucitron.js before 1.37.0 ReDoS via Unescaped Cookie Name in cookie.purge
- State
- Published
- Severity
- 2.3 Low
- Published
- Oct 16, 2026
- Updated
- Oct 21, 2026
- Reserved
- Oct 16, 2026
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.
Scores
| CVSS | Score | Vector | Source |
|---|---|---|---|
| 4.0 | 2.3 Low | 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 | VulnCheck |
| 3.1 | 3.1 Low | CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:N/I:N/A:L | VulnCheck |
Weaknesses
- CWE-1333 Inefficient Regular Expression Complexity
Affected Products
| Product | Versions |
|---|---|
tarteaucitron.jsAmauriC |
|
References
- https://github.com/AmauriC/tarteaucitron.js/commit/60faaba5fd541cad770549d422fc4ac7de657e56patch
- tarteaucitron.js v1.37.0 Release Notesrelease-notes
- https://github.com/AmauriC/tarteaucitron.js/blob/v1.36.0/tarteaucitron.js#L2169-L2175technical-description
- VulnCheck Advisory: tarteaucitron.js before 1.37.0 ReDoS via Unescaped Cookie Name in cookie.purgethird-party-advisory
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