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CVE-2026-118986 Details

ANALYZED

This CVE record has been analyzed and enriched by NVDAPI.com as an independent party.

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.

Metrics

CVSS 3.x Severity and Vector Strings:

VolerionCVSS-B:7.4 HIGHVector:CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N

CNA: CISA-ADPCVSS-B:7.5 HIGHVector:CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N

References to Advisories, Solutions, and Tools

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URL	Source(s)	Tag(s)
https://metacpan.org/release/OETIKER/CallBackery-0.62.0/changes	CPANSec	Release NotesVendor

Weakness Enumeration

CWE-ID	CWE Name	Source
CWE-338	Use of Cryptographically Weak Pseudo-Random Number Generator (PRNG)	CPANSec

Affected Products

Product	Versions
CallBackery	< 0.62.0 (semver)
CPE No CPEs found in CPE dictionary for this product. Remediation No remediation found in references.

Change History

2 change records found show changes

Date	Action	Recorded By
Nov 6, 2026	CVE Modified	CISA-ADP
Oct 30, 2026	New CVE Received	CPANSec