Vulnerability-Lookup

GHSA-J2F5-52CV-9WRH

Vulnerability from github – Published: 2026-04-30 00:31 – Updated: 2026-04-30 15:30

Details

Plack::Middleware::XSendfile versions through 1.0053 for Perl can allow client-controlled path rewriting.

Plack::Middleware::XSendfile allows the variation setting (sendfile type) to be set by the client via the X-Sendfile-Type header, if it is not considered in the middleware constructor or the Plack environment.

A malicious client can set the X-Sendfile-Type header to "X-Accel-Redirect" to services running behind nginx reverse proxies, and then set the X-Accel-Mapping to map the path to an arbitrary file on the server.

Since 1.0053, Plack::Middleware::XSendfile is deprecated and will be removed from future releases of Plack.

This is similar to CVE-2025-61780 for Rack::Sendfile, although Plack::Middleware::XSendfile has some mitigations that disallow regular expressions to be used in the mapping, and only apply the mapping for the "X-Accel-Redirect" type.

Severity

9.1 (Critical)


                  
                    CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N

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{
  "affected": [],
  "aliases": [
    "CVE-2026-7381"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-200"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2026-04-29T23:16:19Z",
    "severity": "CRITICAL"
  },
  "details": "Plack::Middleware::XSendfile versions through 1.0053 for Perl can allow client-controlled path rewriting.\n\nPlack::Middleware::XSendfile allows the variation setting (sendfile type) to be set by the client via the X-Sendfile-Type header, if it is not considered in the middleware constructor or the Plack environment.\n\nA malicious client can set the X-Sendfile-Type header to \"X-Accel-Redirect\" to services running behind nginx reverse proxies, and then set the X-Accel-Mapping to map the path to an arbitrary file on the server.\n\nSince 1.0053, Plack::Middleware::XSendfile is deprecated and will be removed from future releases of Plack.\n\nThis is similar to CVE-2025-61780 for Rack::Sendfile, although Plack::Middleware::XSendfile has some mitigations that disallow regular expressions to be used in the mapping, and only apply the mapping for the \"X-Accel-Redirect\" type.",
  "id": "GHSA-j2f5-52cv-9wrh",
  "modified": "2026-04-30T15:30:38Z",
  "published": "2026-04-30T00:31:21Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2025-61780"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-7381"
    },
    {
      "type": "WEB",
      "url": "https://metacpan.org/release/MIYAGAWA/Plack-1.0053/changes"
    },
    {
      "type": "WEB",
      "url": "https://metacpan.org/release/MIYAGAWA/Plack-1.0053/view/lib/Plack/Middleware/XSendfile.pm#DEPRECATION-NOTICE"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N",
      "type": "CVSS_V3"
    }
  ]
}

CVE-2026-7381 (GCVE-0-2026-7381)

Vulnerability from cvelistv5 – Published: 2026-04-29 22:13 – Updated: 2026-04-30 13:18

Title

Plack::Middleware::XSendfile versions through 1.0053 for Perl can allow client-controlled path rewriting

Summary

Plack::Middleware::XSendfile versions through 1.0053 for Perl can allow client-controlled path rewriting. Plack::Middleware::XSendfile allows the variation setting (sendfile type) to be set by the client via the X-Sendfile-Type header, if it is not considered in the middleware constructor or the Plack environment. A malicious client can set the X-Sendfile-Type header to "X-Accel-Redirect" to services running behind nginx reverse proxies, and then set the X-Accel-Mapping to map the path to an arbitrary file on the server. Since 1.0053, Plack::Middleware::XSendfile is deprecated and will be removed from future releases of Plack. This is similar to CVE-2025-61780 for Rack::Sendfile, although Plack::Middleware::XSendfile has some mitigations that disallow regular expressions to be used in the mapping, and only apply the mapping for the "X-Accel-Redirect" type.

Severity

9.1 (Critical)


                        
                          CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N

SSVC

Exploitation: none Automatable: yes Technical Impact: total

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2026-04-30 13:18 UTC

CWE

CWE-200 - Exposure of Sensitive Information to an Unauthorized Actor
CWE-441 - Unintended Proxy or Intermediary
CWE-913 - Improper Control of Dynamically-Managed Code Resources

Assigner

CPANSec redhat root

References

3 references

URL	Tags
https://metacpan.org/release/MIYAGAWA/Plack-1.005…	release-notes
https://metacpan.org/release/MIYAGAWA/Plack-1.005…	technical-description
https://nvd.nist.gov/vuln/detail/CVE-2025-61780	related

Impacted products

1 product

Vendor	Product	Version
MIYAGAWA	Plack::Middleware::XSendfile	Affected: 0 , ≤ 1.0053 (custom)

Credits

CPANSec

Show details on NVD website

JSON

To clipboard

{
  "containers": {
    "adp": [
      {
        "metrics": [
          {
            "cvssV3_1": {
              "attackComplexity": "LOW",
              "attackVector": "NETWORK",
              "availabilityImpact": "NONE",
              "baseScore": 9.1,
              "baseSeverity": "CRITICAL",
              "confidentialityImpact": "HIGH",
              "integrityImpact": "HIGH",
              "privilegesRequired": "NONE",
              "scope": "UNCHANGED",
              "userInteraction": "NONE",
              "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N",
              "version": "3.1"
            }
          },
          {
            "other": {
              "content": {
                "id": "CVE-2026-7381",
                "options": [
                  {
                    "Exploitation": "none"
                  },
                  {
                    "Automatable": "yes"
                  },
                  {
                    "Technical Impact": "total"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2026-04-30T13:18:16.234435Z",
                "version": "2.0.3"
              },
              "type": "ssvc"
            }
          }
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        "providerMetadata": {
          "dateUpdated": "2026-04-30T13:18:45.937Z",
          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
        },
        "title": "CISA ADP Vulnrichment"
      }
    ],
    "cna": {
      "affected": [
        {
          "collectionURL": "https://cpan.org/modules",
          "defaultStatus": "unaffected",
          "packageName": "Plack",
          "product": "Plack::Middleware::XSendfile",
          "programFiles": [
            "lib/Plack/Middleware::XSendfile.pm"
          ],
          "repo": "https://github.com/plack/Plack",
          "vendor": "MIYAGAWA",
          "versions": [
            {
              "lessThanOrEqual": "1.0053",
              "status": "affected",
              "version": "0",
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      "credits": [
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      ],
      "descriptions": [
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          "lang": "en",
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        }
      ],
      "problemTypes": [
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        {
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      "references": [
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          "tags": [
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          "url": "https://metacpan.org/release/MIYAGAWA/Plack-1.0053/changes"
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        {
          "tags": [
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          ],
          "url": "https://metacpan.org/release/MIYAGAWA/Plack-1.0053/view/lib/Plack/Middleware/XSendfile.pm#DEPRECATION-NOTICE"
        },
        {
          "tags": [
            "related"
          ],
          "url": "https://nvd.nist.gov/vuln/detail/CVE-2025-61780"
        }
      ],
      "solutions": [
        {
          "lang": "en",
          "value": "Users are encouraged to set the appropriate header directly in their applications, or write their own middleware layer that does not allow configuration to be passed via HTTP request headers."
        }
      ],
      "source": {
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      "timeline": [
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          "lang": "en",
          "time": "2025-10-10T00:00:00.000Z",
          "value": "Issue for Rack::Sendfile reported"
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          "lang": "en",
          "time": "2026-04-27T00:00:00.000Z",
          "value": "Issue reported to maintainer of Plack"
        },
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          "lang": "en",
          "time": "2025-04-28T00:00:00.000Z",
          "value": "Plack 1.0052 released with improved security documentation in Plack::Middleware::XSendfile"
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        {
          "lang": "en",
          "time": "2025-04-29T00:00:00.000Z",
          "value": "Plack 1.0053 released that deprecates Plack::Middleware::XSendfile"
        }
      ],
      "title": "Plack::Middleware::XSendfile versions through 1.0053 for Perl can allow client-controlled path rewriting",
      "workarounds": [
        {
          "lang": "en",
          "value": "Users can configure the X-Sendfile-Type in the middleware constructor, and the reverse proxy to unset the X-Sendfile-Type header and (on nginx) the X-Accel-Mapping request header."
        }
      ],
      "x_generator": {
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  "cveMetadata": {
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    "assignerShortName": "CPANSec",
    "cveId": "CVE-2026-7381",
    "datePublished": "2026-04-29T22:13:35.351Z",
    "dateReserved": "2026-04-29T07:43:55.519Z",
    "dateUpdated": "2026-04-30T13:18:45.937Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2"
}

Sightings

Author	Source	Type	Date	Other

Nomenclature

Seen: The vulnerability was mentioned, discussed, or observed by the user.
Confirmed: The vulnerability has been validated from an analyst's perspective.
Published Proof of Concept: A public proof of concept is available for this vulnerability.
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.

Detection rules are retrieved from Rulezet.

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.
Browse all ATT&CK techniques and the vulnerabilities related to each.

Related by attack behaviour

Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.