CVE-2026-9692

Mojolicious::Sessions::Storable versions through 0.05 for Perl generate session ids insecurely

State: Published
Severity: 5.3 Medium
Published: Jun 18, 2026
Updated: Jun 18, 2026
Reserved: May 27, 2026

Description

Mojolicious::Sessions::Storable versions through 0.05 for Perl generate session ids insecurely.

The default session id generator returns a SHA-1 hash seeded with the built-in rand function, the epoch time, the heap address of an anonymous hash, and the PID.

These are predictable or low-entropy sources that are unsuitable for security purposes.

Scores

CVSS	Score	Vector	Source
3.1	5.3 Medium	CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N	CISA-ADP

Weaknesses

CWE-340 Generation of Predictable Numbers or Identifiers
CWE-338 Use of Cryptographically Weak Pseudo-Random Number Generator

Affected Products

Product	Versions
Mojolicious::Sessions::StorableHAYAJO	0.05 and earlierAffected

References

https://security.metacpan.org/patches/M/Mojolicious-Plugin-SessionStore/0.05/CVE-2026-9692-r1.patchpatch
https://metacpan.org/release/HAYAJO/Mojolicious-Plugin-SessionStore-0.05/source/lib/Mojolicious/Sessions/Storable.pm#L11-15
https://www.cve.org/CVERecord?id=CVE-2025-40923vendor-advisoryrelatedvdb-entry
https://security.metacpan.org/docs/guides/random-data-for-security.htmltechnical-description

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