Vulnerability · Published Jan 13, 2026 · Assigned by GitHub_M
CVE-2026-22809tarteaucitron.js has Regular Expression Denial of Service (ReDoS) vulnerability
Medium 4.4
In plain English
A medium-severity regular-expression denial of service in tarteaucitron.js from AmauriC. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.1% (higher than 2% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.
Severity (CVSS 3.1)4.4Medium
Exploit odds (30 days)0.1%top 97.6% of all CVEs
Exploited in the wildNo reportsCISA SSVC: none
Attack toolingNoneno public tooling known
Official 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.
Affected packages & fixed versions
| Ecosystem | Package | Fixed in | Advisory |
|---|---|---|---|
| npm | tarteaucitronjs | 1.29.0 | GHSA-q5f6-qxm2-mcqm |
Affected products (as reported)
| Vendor | Product | Versions |
|---|---|---|
| AmauriC | tarteaucitron.js | < 1.29.0 |
Weakness: CWE-1333 · Vector: CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H