CVE-2026-118987
Published Oct 30, 2026
Modified Oct 30, 2026
Description
CallBackery versions before 0.62.0 for Perl accept session cookies of any age sent in the X-Session-Cookie header. cookieConf() rejects a cookie older than 300 seconds only when it arrives in the xsc query parameter. The same cookie sent in the X-Session-Cookie header is accepted however old it is. A session cookie that leaks through a log, a Referer header or browser history authenticates as its user indefinitely.
Is your site exposed to CVE-2026-118987?
Run a free security scan — no signup, results in seconds.
References
Other References
Frequently Asked Questions
What is CVE-2026-118987? +
CallBackery versions before 0.62.0 for Perl accept session cookies of any age sent in the X-Session-Cookie header.
cookieConf() rejects a cookie older than 300 seconds only when it arrives in the xsc query parameter. The same cookie sent in the X-Session-Cookie header is accepted however old it is.
A session cookie that leaks through a log, a Referer header or browser history authenticates as its user indefinitely.
How do I check if I'm vulnerable to CVE-2026-118987? +
You can use Secably's free Website Scanner to check your website for known vulnerabilities. For infrastructure scanning, use the Port Scanner to identify exposed services that may be affected. Check the vendor advisories linked above for specific patch and version information.