Is there a public exploit for CVE-2026-118986?

No public exploit for CVE-2026-118986 was found in Exploit-DB, Metasploit, Nuclei templates or public proof-of-concept repositories. That is an absence of evidence rather than proof that none exists.

— Unscored

CallBackery versions before 0.62.0 for Perl allow session cookie forgery via a signing secret generated with rand().

CVE-2026-118986

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 232 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.

Assessment

CVSS: Not yet scored
Severity: Unscored
Known exploited: Not listed in CISA KEV
Exploit availability: Nothing found in Exploit-DB, Metasploit, Nuclei or public PoC repositories
Published: 30 October 2026
Last updated: 30 October 2026
Weakness: CWE-338
Assigner: 9b29abf9-4ab0-4765-b253-1875cd9b441e

At the source

References

https://metacpan.org/release/OETIKER/CallBackery-0.62.0/changes

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