What is CVE-2026-66746?
CVE-2026-66746 is an HTTP response splitting vulnerability in the Rouille library, allowing remote attackers to inject arbitrary HTTP response headers by embedding CR/LF bytes into attacker-controlled input, such as percent-decoded query parameters. Affected systems should be updated or input sanitization must be applied.
FAQ2
What is the CVE-2026-66746 vulnerability?
CVE-2026-66746 is an HTTP response splitting vulnerability in the Rouille library, allowing remote attackers to inject arbitrary HTTP response headers by embedding CR/LF bytes into attacker-controlled input.
How can one protect against CVE-2026-66746?
Affected systems should be updated or input sanitization must be applied.
See also6
This explainer is AI-written from source data — skopnix's own reporting on this CVE; CVSS scores, vendors and versions are never invented. See NVD for the official record.