The session id from the client's cookie reaches the CHI cache unchanged. The sibling HTTP::Session::Store::Memcached rejects ids that contain control characters, but the CHI store has no such check, and CHI does not escape keys for its memcached drivers.
With a memcached driver, a CR and LF in the session id end the cache command early, and the server reads the bytes after them as further commands.
Analysis and contextual insights are available on OpenCVE Cloud.
Vendor Solution
Upgrade to http-session 0.54 or later.
Tracking
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Mon, 09 Nov 2026 17:30:00 +0000
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cvssV3_1
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Sat, 07 Nov 2026 07:30:00 +0000
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ssvc
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Mon, 02 Nov 2026 10:30:00 +0000
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Tokuhirom
Tokuhirom http::session2 |
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Tokuhirom
Tokuhirom http::session2 |
Sun, 01 Nov 2026 20:30:00 +0000
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Sun, 01 Nov 2026 11:00:00 +0000
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| Description | HTTP::Session versions before 0.54 for Perl allow memcached command injection via unfiltered session ids in HTTP::Session::Store::CHI. The session id from the client's cookie reaches the CHI cache unchanged. The sibling HTTP::Session::Store::Memcached rejects ids that contain control characters, but the CHI store has no such check, and CHI does not escape keys for its memcached drivers. With a memcached driver, 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 0.54 for Perl allow memcached command injection via unfiltered session ids in HTTP::Session::Store::CHI | |
| Weaknesses | CWE-93 | |
| References |
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Status: PUBLISHED
Assigner: CPANSec
Published:
Updated: 2026-11-09T17:04:47.552Z
Reserved: 2026-06-28T20:29:06.153Z
Link: CVE-2026-13575
Updated: 2026-11-01T20:05:00.738Z
Status : Deferred
Published: 2026-11-01T11:18:58.040
Modified: 2026-11-09T17:17:28.440
Link: CVE-2026-13575
No data.
OpenCVE Enrichment
Updated: 2026-11-09T18:45:12Z