HTTP::Session: memcached cmd inj

http-session

HTTP::Session versions before 0.54 for Perl allow memcached command injection via unfiltered session ids

Do this now

Check the CPANSec advisory for a fix and restrict untrusted session IDs reaching memcached meanwhile.

First seen: 1 Nov 2026
Last update: 1 Nov 2026, 18:17 UTC
Versions per the CVE record from CPANSec, not the vendor: 0.54
Identifiers: CVE-2026-13575
Source: news
On the menu as: Perl (CPAN)

Check this repository for exposure to one security incident from pwned.coffee. Report first, change nothing until I say so.

## HTTP::Session: memcached cmd inj
Severity: unknown. Patch status: fix status unknown.
Affected: http-session
Versions per the CVE record from CPANSec, not the vendor: 0.54
Ids: CVE-2026-13575

HTTP::Session versions before 0.54 for Perl allow memcached command injection via unfiltered session ids

## Steps
1. Search the repo, its CI and infra config for http-session. If present, report the version in use and whether it's affected.
2. Versions per the CVE record from CPANSec, not the vendor: http-session: 0.54. Don't treat them as a fix until the vendor says so.

## Fix by release line
| Line | State | Fix | Until then |
|---|---|---|---|
| http-session | per the CVE record from CPANSec, not the vendor | 0.54 | restrict network access to it |

## Report
A table: file, product or package, version in use, affected yes/no, exact fix. Then anything a human has to check outside the repo.

If you have the pwned.coffee MCP server (https://pwned.coffee/mcp), call lookup_cve("CVE-2026-13575") for the latest, and check_repo with this repo's lockfiles, Dockerfiles and workflows for a full receipt.
Sources: https://seclists.org/oss-sec/2026/q4/461
https://pwned.coffee/i/http-session-memcached-cmd-inj-cve-2026-13575

Timeline

3 Nov 2026, 16:37 UTC
Fix status: patched → unknown.
1 Nov 2026
First reported.

Receipt

Exploitation: No known exploitation
Checked by hand “The CVE record names HTTP::Session, a Perl module on CPAN.” source
By release line, per the CVE record from CPANSec, not the vendor: Product Affected Version named Source
http-session before 0.54 0.54 CVE record (CNA) per the CVE record from CPANSec, not the vendor checked 3 Nov
Score: No CVSS published yet: severity unknown.
Last checked: 4 Nov 2026, 08:18 UTC

Product	Affected	Version named	Source
http-session	before 0.54	0.54	CVE record (CNA) per the CVE record from CPANSec, not the vendor checked 3 Nov

Sources: KEV – CVE record ✓ Vendor –

Sources

seclists.org: CVE-2026-13575: HTTP::Session versions before 0.54 for Perl allow memcached command injection via unfiltered session ids in HTTP::Session::Store::CHI

Totalone coffee