CVE-2011-10042

HTTP::Session versions before 0.43 for Perl allow memcached command injection via unfiltered session ids in HTTP::Session::Store::Memcached

Published Nov 14, 2026 CVSS n/a EPSS n/a KEV · Not listed
Description
HTTP::Session versions before 0.43 for Perl allow memcached command injection via unfiltered session ids in HTTP::Session::Store::Memcached.

The session id from the client's cookie reaches memcached unchanged as the cache key.

A CR and LF in the session id end the cache command early, and the server reads the bytes after them as further commands.

Remediation

Vendor Solution

Upgrade to HTTP::Session 0.43 or later. Note that HTTP::Session 0.54 includes additional security fixes, but has been marked as deprecated. Users should migrate to an alternative such as Plack::Middleware::Session.

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History
Type Values Removed Values Added
Description HTTP::Session versions before 0.43 for Perl allow memcached command injection via unfiltered session ids in HTTP::Session::Store::Memcached. The session id from the client's cookie reaches memcached unchanged as the cache key. A CR and LF in the session id end the cache command early, and the server reads the bytes after them as further commands.
Title HTTP::Session versions before 0.43 for Perl allow memcached command injection via unfiltered session ids in HTTP::Session::Store::Memcached
Weaknesses CWE-93
References

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Weaknesses

Sources

Status
PUBLISHED
Assigner
CPANSec
Published
Updated
Nov 14, 2026, 1:55 PM
Reserved
Jun 10, 2026, 6:42 PM
Status
Received
Published
Nov 14, 2026, 2:17 PM
Modified
Nov 14, 2026, 2:17 PM