{"id":"CVE-2026-118986","title":"CallBackery versions before 0.62.0 for Perl allow session cookie forgery via a signing secret generated with rand()","summary":"CallBackery versions before 0.62.0 for Perl allow session cookie forgery via a signing secret generated with rand().\n\nThe secret that signs session cookies is built from two calls to the built-in rand(), which is seeded with 32 bits. The…","severity":"none","cwe":["CWE-338"],"product":"CallBackery","affected":["CallBackery < 0.62.0"],"published":"2026-10-30","updated":"2026-10-30","sourceUpdated":"2026-10-30T13:13:32.845Z","source":"CVEORG","sourceUrl":"https://www.cve.org/CVERecord?id=CVE-2026-118986","references":[{"url":"https://metacpan.org/release/OETIKER/CallBackery-0.62.0/changes"}],"tags":["cve.org"],"epss":0.00158,"epssPercentile":0.04962,"ingestedAt":"2026-11-05T16:07:30.238Z","slug":"CVE-2026-118986","body":"## Overview\n\nCallBackery versions before 0.62.0 for Perl allow session cookie forgery via a signing secret generated with rand().\n\nThe 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.\n\nAn attacker who obtains a single session cookie can recover the secret and sign cookies for any user, including an administrator.\n\n## Affected\n\n- `CallBackery < 0.62.0`\n\n## Remediation\n\nUpgrade to CallBackery 0.62.0 or later.","depth":"sunlit","depthScore":3,"depthScoreParts":{"impact":2.8,"likelihood":0,"exploitation":0,"ransomware":0},"changes":[]}