CVE-2026-63771 Adminer < 5.4.3 Cookie Injection via X-Forwarded-Prefix Header

Adminer before 5.4.3 contains a cookie injection vulnerability that allows attackers to manipulate cookie attributes by injecting arbitrary values through the unsanitized X-Forwarded-Prefix HTTP header used in Set-Cookie path attributes. Attackers can exploit a misconfigured reverse proxy to...

CVE-2026-63771

CVE-2026-63771 affects Adminer prior to 5.4.3. The issue is a cookie injection vulnerability where an unsanitized X-Forwarded-Prefix header can be reflected into Set-Cookie path attributes, allowing an attacker to manipulate cookie attributes. With a misconfigured reverse proxy, this can downgrad...

CVE-2026-63771 Adminer < 5.4.3 Cookie Injection via X-Forwarded-Prefix Header

Adminer before 5.4.3 contains a cookie injection vulnerability that allows attackers to manipulate cookie attributes by injecting arbitrary values through the unsanitized X-Forwarded-Prefix HTTP header used in Set-Cookie path attributes. Attackers can exploit a misconfigured reverse proxy to...

undici vulnerable to Set-Cookie SameSite attribute downgrade via permissive substring matching

...

Linux Distros Unpatched Vulnerability : CVE-2026-11525

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - Impact: When undici parses a Set-Cookie header, it accepts any SameSite attribute value that contains Strict, Lax, or None as a substring, rather than the...

SUSE CVE-2026-11525

Impact: When undici parses a Set-Cookie header, it accepts any SameSite attribute value that contains Strict, Lax, or None as a substring, rather than the case-insensitive exact match specified by RFC 6265. Non-spec values are silently mapped to one of the three standard tokens. For example,...