Medium severity · published Jan 13, 2026
CVE-2026-22809
tarteaucitron.js has Regular Expression Denial of Service (ReDoS) vulnerability
4.4
CVSS
0.1%
EPSS
No
On KEV
Description
tarteaucitron.js is a compliant and accessible cookie banner. Prior to 1.29.0, a Regular Expression Denial of Service (ReDoS) vulnerability was identified in tarteaucitron.js in the handling of the issuu_id parameter. This vulnerability is fixed in 1.29.0.
CVSS vector
CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H
Attack vector
Local
Complexity
Low
Privileges
High
User interaction
None
Confidentiality
None
Integrity
None
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.1% · higher than 2% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
TA
tarteaucitron.js · AmauriC
< 1.29.0 · source: vendor
TA
Tarteaucitronjs · Amauri
before 1.29.0 · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-22809
CVE.org
https://www.cve.org/CVERecord?id=CVE-2026-22809
Patch
https://github.com/AmauriC/tarteaucitron.js/commit/f0bbdac2fdf3cd24a325fc0928c0d34abf1b7b52
Patch
https://github.com/AmauriC/tarteaucitron.js/security/advisories/GHSA-q5f6-qxm2-mcqm
More from tarteaucitron.js
6.6
CVE-2025-31475
tarteaucitron.js allows prototype pollution via custom text injection
6.6
CVE-2025-31138
tarteaucitron.js allows UI manipulation via unrestricted CSS injection
5.4
CVE-2026-111713
tarteaucitron.js before 1.37.0 XSS via getElemAttr Attribute Validation Mismatch
4.8
CVE-2025-31476
tarteaucitron.js allows url scheme injection via unfiltered inputs
4.3
CVE-2026-49977
tarteaucitron.js: data-cookie attribute can be used to delete arbitrary cookies