Vulnerability-Lookup

GHSA-6F9X-5FGH-99F6

Vulnerability from github – Published: 2026-11-01 12:30 – Updated: 2026-11-01 21:31

Details

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.

Show details on source website

JSON

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{
  "affected": [],
  "aliases": [
    "CVE-2026-13575"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-93"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2026-11-01T11:18:58Z",
    "severity": null
  },
  "details": "HTTP::Session versions before 0.54 for Perl allow memcached command injection via unfiltered session ids in HTTP::Session::Store::CHI.\n\nThe session id from the client\u0027s 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.\n\nWith 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.",
  "id": "GHSA-6f9x-5fgh-99f6",
  "modified": "2026-11-01T21:31:02Z",
  "published": "2026-11-01T12:30:23Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-13575"
    },
    {
      "type": "WEB",
      "url": "https://github.com/tokuhirom/http-session/commit/58288cbf941da6d2aad4ff5c0c79e523d9e583b4.patch"
    },
    {
      "type": "WEB",
      "url": "https://metacpan.org/release/KTAT/http-session-0.53/source/lib/HTTP/Session/Store/CHI.pm"
    },
    {
      "type": "WEB",
      "url": "https://metacpan.org/release/TOKUHIROM/http-session-0.54/changes"
    },
    {
      "type": "WEB",
      "url": "http://www.openwall.com/lists/oss-security/2026/11/01/2"
    }
  ],
  "schema_version": "1.4.0",
  "severity": []
}

CVE-2026-13575 (GCVE-0-2026-13575)

Vulnerability from cvelistv5 – Published: 2026-11-01 10:46 – Updated: 2026-11-01 20:05

Title

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

Summary

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.

Severity

No CVSS data available.

CWE

CWE-93 - Improper Neutralization of CRLF Sequences

Assigner

CPANSec CNA under the redhat root

CNA scorecard C 62/100 over 369 records in the last 180 days details

References

4 references

URL	Tags
https://metacpan.org/release/KTAT/http-session-0.…
https://github.com/tokuhirom/http-session/commit/…	patch
https://metacpan.org/release/TOKUHIROM/http-sessi…	release-notes
http://www.openwall.com/lists/oss-security/2026/11/01/2

Impacted products

1 product

Vendor	Product	Version
		Affected: 0 , < 0.54 (custom)

Show details on NVD website

JSON

To clipboard

{
  "containers": {
    "adp": [
      {
        "providerMetadata": {
          "dateUpdated": "2026-11-01T20:05:00.738Z",
          "orgId": "af854a3a-2127-422b-91ae-364da2661108",
          "shortName": "CVE"
        },
        "references": [
          {
            "url": "http://www.openwall.com/lists/oss-security/2026/11/01/2"
          }
        ],
        "title": "CVE Program Container"
      }
    ],
    "cna": {
      "affected": [
        {
          "collectionURL": "https://cpan.org/modules",
          "defaultStatus": "unaffected",
          "modules": [
            "HTTP::Session"
          ],
          "packageName": "http-session",
          "packageURL": "pkg:cpan/http-session",
          "programFiles": [
            "lib/HTTP/Session/Store/CHI.pm"
          ],
          "programRoutines": [
            {
              "name": "HTTP::Session::Store::CHI::select"
            },
            {
              "name": "HTTP::Session::Store::CHI::insert"
            },
            {
              "name": "HTTP::Session::Store::CHI::update"
            },
            {
              "name": "HTTP::Session::Store::CHI::delete"
            }
          ],
          "repo": "https://github.com/tokuhirom/http-session",
          "versions": [
            {
              "lessThan": "0.54",
              "status": "affected",
              "version": "0",
              "versionType": "custom"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "HTTP::Session versions before 0.54 for Perl allow memcached command injection via unfiltered session ids in HTTP::Session::Store::CHI.\n\nThe session id from the client\u0027s 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.\n\nWith 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."
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "cweId": "CWE-93",
              "description": "CWE-93 Improper Neutralization of CRLF Sequences",
              "lang": "en",
              "type": "CWE"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-11-01T10:46:36.389Z",
        "orgId": "9b29abf9-4ab0-4765-b253-1875cd9b441e",
        "shortName": "CPANSec"
      },
      "references": [
        {
          "url": "https://metacpan.org/release/KTAT/http-session-0.53/source/lib/HTTP/Session/Store/CHI.pm"
        },
        {
          "tags": [
            "patch"
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          "url": "https://github.com/tokuhirom/http-session/commit/58288cbf941da6d2aad4ff5c0c79e523d9e583b4.patch"
        },
        {
          "tags": [
            "release-notes"
          ],
          "url": "https://metacpan.org/release/TOKUHIROM/http-session-0.54/changes"
        }
      ],
      "solutions": [
        {
          "lang": "en",
          "value": "Upgrade to http-session 0.54 or later."
        }
      ],
      "source": {
        "discovery": "UNKNOWN"
      },
      "title": "HTTP::Session versions before 0.54 for Perl allow memcached command injection via unfiltered session ids in HTTP::Session::Store::CHI",
      "x_generator": {
        "engine": "cpansec-cna-tool 0.1"
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "9b29abf9-4ab0-4765-b253-1875cd9b441e",
    "assignerShortName": "CPANSec",
    "cveId": "CVE-2026-13575",
    "datePublished": "2026-11-01T10:46:36.389Z",
    "dateReserved": "2026-06-28T20:29:06.153Z",
    "dateUpdated": "2026-11-01T20:05:00.738Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2"
}

Sightings

Author	Source	Type	Date	Other

Nomenclature

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Confirmed: The vulnerability has been validated from an analyst's perspective.
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Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
Not confirmed: The user expressed doubt about the validity of the vulnerability.
Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.

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The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the vulnerability by the CIRCL/vulnerability-attack-technique-classification-roberta-base model, served locally by ML-Gateway. They have not been verified by an analyst and are provided for guidance only.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
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