Medium severity · published Jun 18, 2026
CVE-2026-9692
Mojolicious::Sessions::Storable versions through 0.05 for Perl generate session ids insecurely
5.3
CVSS
0.4%
EPSS
No
On KEV
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.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
Attack vector
Network
Complexity
Low
Privileges
None
User interaction
None
Confidentiality
Low
Integrity
None
Availability
None
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.4% · higher than 36% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
MO
Mojolicious::Sessions::Storable · HAYAJO
through 0.05 · source: vendor
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-9692
CVE.org
https://www.cve.org/CVERecord?id=CVE-2026-9692
metacpan.org
https://metacpan.org/release/HAYAJO/Mojolicious-Plugin-SessionStore-0.05/source/lib/Mojolicious/Sessions/Storable.pm#L11-15
security.metacpan.org
https://security.metacpan.org/docs/guides/random-data-for-security.html
security.metacpan.org
https://security.metacpan.org/patches/M/Mojolicious-Plugin-SessionStore/0.05/CVE-2026-9692-r1.patch
www.cve.org
https://www.cve.org/CVERecord?id=CVE-2025-40923