Vulnerability-Lookup

PYSEC-2026-1316

Vulnerability from pysec - Published: 2026-07-07 16:03 - Updated: 2026-07-07 17:24

Details

Impact

When downloadinging comic images, Dosage constructs target file names from different aspects of the remote comic (page URL, image URL, page content, etc.). While the basename is properly stripped of directory-traversing characters, the file extension is taken from the HTTP Content-Type header. This allows a remote attacker (or a Man-in-the-Middle, if the comic is served over HTTP) to write arbitrary files outside the target directory (if additional conditions are met).

Patches

Fixed in release 3.2. The fix is small and self-contained, so distributors might elect to backport the fix to older versions.

Workarounds

Severity

8.8 (High)


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

Impacted products

Name	purl
dosage	pkg:pypi/dosage

Aliases

JSON

To clipboard

{
  "affected": [
    {
      "package": {
        "ecosystem": "PyPI",
        "name": "dosage",
        "purl": "pkg:pypi/dosage"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "3.2"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "1.10",
        "1.11",
        "1.12",
        "1.13",
        "1.14",
        "1.15",
        "1.7",
        "1.8",
        "1.9",
        "2.0",
        "2.1",
        "2.10",
        "2.11",
        "2.12",
        "2.13",
        "2.14",
        "2.15",
        "2.16",
        "2.17",
        "2.2",
        "2.3",
        "2.4",
        "2.5",
        "2.6",
        "2.7",
        "2.8",
        "2.9",
        "3.0",
        "3.1"
      ]
    }
  ],
  "aliases": [
    "CVE-2025-64184",
    "GHSA-4vcx-3pj3-44m7"
  ],
  "details": "### Impact\n\nWhen downloadinging comic images, Dosage constructs target file names from different aspects of the remote comic (page URL, image URL, page content, etc.). While the basename is properly stripped of directory-traversing characters, the file extension is taken from the HTTP `Content-Type` header. This allows a remote attacker (or a Man-in-the-Middle, if the comic is served over HTTP) to write arbitrary files outside the target directory (if additional conditions are met). \n\n### Patches\n\nFixed in release 3.2. The [fix is small and self-contained](https://github.com/webcomics/dosage/commit/336a9684191604bc49eed7296b74bd582151181e), so distributors might elect to backport the fix to older versions.\n\n### Workarounds\n\nNo",
  "id": "PYSEC-2026-1316",
  "modified": "2026-07-07T17:24:03.287622Z",
  "published": "2026-07-07T16:03:09.519278Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://github.com/webcomics/dosage/security/advisories/GHSA-4vcx-3pj3-44m7"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2025-64184"
    },
    {
      "type": "WEB",
      "url": "https://github.com/webcomics/dosage/commit/336a9684191604bc49eed7296b74bd582151181e"
    },
    {
      "type": "PACKAGE",
      "url": "https://github.com/webcomics/dosage"
    },
    {
      "type": "PACKAGE",
      "url": "https://pypi.org/project/dosage"
    },
    {
      "type": "ADVISORY",
      "url": "https://github.com/advisories/GHSA-4vcx-3pj3-44m7"
    }
  ],
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H",
      "type": "CVSS_V3"
    }
  ],
  "summary": "Dosage vulnerable to a Directory Traversal through crafted HTTP responses"
}

CVE-2025-64184 (GCVE-0-2025-64184)

Vulnerability from cvelistv5 – Published: 2025-11-07 03:02 – Updated: 2025-11-07 18:02

Title

Dosage vulnerable to Directory Traversal through crafted HTTP responses

Summary

Dosage is a comic strip downloader and archiver. When downloading comic images in versions 3.1 and below, Dosage constructs target file names from different aspects of the remote comic (page URL, image URL, page content, etc.). While the basename is properly stripped of directory-traversing characters, the file extension is taken from the HTTP Content-Type header. This allows a remote attacker (or a Man-in-the-Middle, if the comic is served over HTTP) to write arbitrary files outside the target directory (if additional conditions are met). This issue is fixed in version 3.2.

Severity

8.8 (High)


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

SSVC

Exploitation: none Automatable: no Technical Impact: total

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2025-11-07 18:02 UTC

CWE

CWE-22 - Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')

Assigner

GitHub_M mitre root

References

2 references

URL	Tags
https://github.com/webcomics/dosage/security/advi…	x_refsource_CONFIRM
https://github.com/webcomics/dosage/commit/336a96…	x_refsource_MISC

Impacted products

1 product

Vendor	Product	Version
webcomics	dosage	Affected: < 3.2

Show details on NVD website

JSON

To clipboard

{
  "containers": {
    "adp": [
      {
        "metrics": [
          {
            "other": {
              "content": {
                "id": "CVE-2025-64184",
                "options": [
                  {
                    "Exploitation": "none"
                  },
                  {
                    "Automatable": "no"
                  },
                  {
                    "Technical Impact": "total"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2025-11-07T18:02:18.606724Z",
                "version": "2.0.3"
              },
              "type": "ssvc"
            }
          }
        ],
        "providerMetadata": {
          "dateUpdated": "2025-11-07T18:02:26.896Z",
          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
        },
        "title": "CISA ADP Vulnrichment"
      }
    ],
    "cna": {
      "affected": [
        {
          "product": "dosage",
          "vendor": "webcomics",
          "versions": [
            {
              "status": "affected",
              "version": "\u003c 3.2"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "Dosage is a comic strip downloader and archiver. When downloading comic images in versions 3.1 and below, Dosage constructs target file names from different aspects of the remote comic (page URL, image URL, page content, etc.). While the basename is properly stripped of directory-traversing characters, the file extension is taken from the HTTP Content-Type header. This allows a remote attacker (or a Man-in-the-Middle, if the comic is served over HTTP) to write arbitrary files outside the target directory (if additional conditions are met). This issue is fixed in version 3.2."
        }
      ],
      "metrics": [
        {
          "cvssV3_1": {
            "attackComplexity": "LOW",
            "attackVector": "NETWORK",
            "availabilityImpact": "HIGH",
            "baseScore": 8.8,
            "baseSeverity": "HIGH",
            "confidentialityImpact": "HIGH",
            "integrityImpact": "HIGH",
            "privilegesRequired": "NONE",
            "scope": "UNCHANGED",
            "userInteraction": "REQUIRED",
            "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H",
            "version": "3.1"
          }
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "cweId": "CWE-22",
              "description": "CWE-22: Improper Limitation of a Pathname to a Restricted Directory (\u0027Path Traversal\u0027)",
              "lang": "en",
              "type": "CWE"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2025-11-07T03:02:41.838Z",
        "orgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
        "shortName": "GitHub_M"
      },
      "references": [
        {
          "name": "https://github.com/webcomics/dosage/security/advisories/GHSA-4vcx-3pj3-44m7",
          "tags": [
            "x_refsource_CONFIRM"
          ],
          "url": "https://github.com/webcomics/dosage/security/advisories/GHSA-4vcx-3pj3-44m7"
        },
        {
          "name": "https://github.com/webcomics/dosage/commit/336a9684191604bc49eed7296b74bd582151181e",
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://github.com/webcomics/dosage/commit/336a9684191604bc49eed7296b74bd582151181e"
        }
      ],
      "source": {
        "advisory": "GHSA-4vcx-3pj3-44m7",
        "discovery": "UNKNOWN"
      },
      "title": "Dosage vulnerable to Directory Traversal through crafted HTTP responses"
    }
  },
  "cveMetadata": {
    "assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
    "assignerShortName": "GitHub_M",
    "cveId": "CVE-2025-64184",
    "datePublished": "2025-11-07T03:02:41.838Z",
    "dateReserved": "2025-10-28T21:07:16.440Z",
    "dateUpdated": "2025-11-07T18:02:26.896Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2"
}

GHSA-4VCX-3PJ3-44M7

Vulnerability from github – Published: 2025-11-04 15:31 – Updated: 2025-11-07 16:42

Summary

Dosage vulnerable to a Directory Traversal through crafted HTTP responses

Details

Impact

Patches

Fixed in release 3.2. The fix is small and self-contained, so distributors might elect to backport the fix to older versions.

Workarounds

Severity

8.8 (High)


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

Show details on source website

JSON

To clipboard

{
  "affected": [
    {
      "package": {
        "ecosystem": "PyPI",
        "name": "dosage"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "3.2"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "aliases": [
    "CVE-2025-64184"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-22"
    ],
    "github_reviewed": true,
    "github_reviewed_at": "2025-11-04T15:31:48Z",
    "nvd_published_at": "2025-11-07T04:15:46Z",
    "severity": "HIGH"
  },
  "details": "### Impact\n\nWhen downloadinging comic images, Dosage constructs target file names from different aspects of the remote comic (page URL, image URL, page content, etc.). While the basename is properly stripped of directory-traversing characters, the file extension is taken from the HTTP `Content-Type` header. This allows a remote attacker (or a Man-in-the-Middle, if the comic is served over HTTP) to write arbitrary files outside the target directory (if additional conditions are met). \n\n### Patches\n\nFixed in release 3.2. The [fix is small and self-contained](https://github.com/webcomics/dosage/commit/336a9684191604bc49eed7296b74bd582151181e), so distributors might elect to backport the fix to older versions.\n\n### Workarounds\n\nNo",
  "id": "GHSA-4vcx-3pj3-44m7",
  "modified": "2025-11-07T16:42:26Z",
  "published": "2025-11-04T15:31:48Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://github.com/webcomics/dosage/security/advisories/GHSA-4vcx-3pj3-44m7"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2025-64184"
    },
    {
      "type": "WEB",
      "url": "https://github.com/webcomics/dosage/commit/336a9684191604bc49eed7296b74bd582151181e"
    },
    {
      "type": "PACKAGE",
      "url": "https://github.com/webcomics/dosage"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H",
      "type": "CVSS_V3"
    }
  ],
  "summary": "Dosage vulnerable to a Directory Traversal through crafted HTTP responses"
}

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.

Action not permitted

PYSEC-2026-1316

Impact

Patches

Workarounds

CVE-2025-64184 (GCVE-0-2025-64184)

GHSA-4VCX-3PJ3-44M7

Impact

Patches

Workarounds

Tags

Sightings

Nomenclature

Related by attack behaviour