Vulnerability Description
CallBackery versions before 0.62.0 for Perl allow session cookie forgery via a signing secret generated with rand(). The secret that signs session cookies is built from two calls to the built-in rand(), which is seeded with 32 bits. The secret therefore has at most 2**32 possible values, and one signed cookie is enough to test each candidate offline. An attacker who obtains a single session cookie can recover the secret and sign cookies for any user, including an administrator.
Related Weaknesses (CWE)
References
FAQ
What is CVE-2026-118986?
CVE-2026-118986 is a documented vulnerability. CallBackery versions before 0.62.0 for Perl allow session cookie forgery via a signing secret generated with rand(). The secret that signs session cookies is built from two calls to the built-in rand...
How severe is CVE-2026-118986?
CVSS scoring is not yet available for CVE-2026-118986. Check NVD for updates.
Is there a patch for CVE-2026-118986?
Check the references section above for vendor advisories and patch information. Review vendor security bulletins for remediation guidance.