CVE-2026-49977: tarteaucitron: data-cookie attribute can be used to delete arbitrary cookies

July 10, 2026

tarteaucitron provides a list of cookies and buttons to delete them. If an attacker can write HTML with data attributes, they could create an element that silently deletes a cookie when clicked and trick a user to delete this cookie.

References

github.com/AmauriC/tarteaucitron.js/security/advisories/GHSA-jxj7-g6gm-49j7
github.com/advisories/GHSA-jxj7-g6gm-49j7
nvd.nist.gov/vuln/detail/CVE-2026-49977

Code Behaviors & Features

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