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.

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Fixes

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.


Workaround

No workaround given by the vendor.

History

Sat, 14 Nov 2026 21:30:00 +0000

Type Values Removed Values Added
References

Sat, 14 Nov 2026 16:15:00 +0000

Type Values Removed Values Added
First Time appeared Tokuhirom
Tokuhirom http::session2
Vendors & Products Tokuhirom
Tokuhirom http::session2

Sat, 14 Nov 2026 14:15:00 +0000

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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cve-icon MITRE

Status: PUBLISHED

Assigner: CPANSec

Published:

Updated: 2026-11-14T21:04:51.716Z

Reserved: 2026-06-10T18:42:05.115Z

Link: CVE-2011-10042

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Received

Published: 2026-11-14T14:17:21.480

Modified: 2026-11-14T21:16:49.437

Link: CVE-2011-10042

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-11-14T20:00:10Z

Weaknesses