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OpenAdvisories
High · 8.2 CVE-2025-40932 EUVD-2025-208124GHSA-prr9-fcgf-vpxx

Apache::SessionX versions through 2.01 for Perl create insecure session id

Published Feb 26, 2026 · Updated Feb 27, 2026 · Assigned by CPANSec

Description

Apache::SessionX versions through 2.01 for Perl create insecure session id.

Apache::SessionX generates session ids insecurely. The default session id generator in Apache::SessionX::Generate::MD5 returns a MD5 hash seeded with the built-in rand() function, the epoch time, and the PID. The PID will come from a small set of numbers, and the epoch time may be guessed, if it is not leaked from the HTTP Date header. The built-in rand function is unsuitable for cryptographic usage. Predicable session ids could allow an attacker to gain access to systems.

Affected products

VendorProductAffectedFixed
GRICHTER Apache::SessionX ≤ 2.01 —

Fixed in Linux distributions

Distributions backport fixes, so the version that fixes this vulnerability differs per release — upgrade to at least the version shown. From the distributions' security trackers and advisories.

ReleasePackageFixed inAdvisory
Debian 12 libapache-sessionx-perl No fix yet —
ReleasePackageFixed inAdvisory
Ubuntu 26.10 libapache-sessionx-perl No fix yet —
Ubuntu 26.04 LTS libapache-sessionx-perl No fix yet —
Ubuntu 25.10 libapache-sessionx-perl No fix yet —
Ubuntu 24.04 LTS libapache-sessionx-perl No fix yet —
Ubuntu 22.04 LTS libapache-sessionx-perl No fix yet —
Show 3 more (older releases, extended support, other products)
ReleasePackageFixed inAdvisory
Ubuntu 20.04 LTS libapache-sessionx-perl No fix yet —
Ubuntu 18.04 LTS libapache-sessionx-perl No fix yet —
Ubuntu 16.04 LTS libapache-sessionx-perl No fix yet —

References