Vulnerability-Lookup

CVE-2026-29778 (GCVE-0-2026-29778)

Vulnerability from cvelistv5 – Published: 2026-03-07 15:28 – Updated: 2026-03-09 18:26

Title

pyLoad: Arbitrary File Write via Path Traversal in edit_package()

Summary

pyLoad is a free and open-source download manager written in Python. From version 0.5.0b3.dev13 to 0.5.0b3.dev96, the edit_package() function implements insufficient sanitization for the pack_folder parameter. The current protection relies on a single-pass string replacement of "../", which can be bypassed using crafted recursive traversal sequences. This issue has been patched in version 0.5.0b3.dev97.

Severity ?

7.1 (High)


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

CWE

CWE-23 - Relative Path Traversal

Assigner

GitHub_M

References

URL

Tags

https://github.com/pyload/pyload/security/advisor…

x_refsource_CONFIRM

Impacted products

	Vendor	Product	Version
	pyload	pyload	Affected: >= 0.5.0b3.dev13, < 0.5.0b3.dev97

Show details on NVD website

JSON

To clipboard

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FKIE_CVE-2026-29778

Vulnerability from fkie_nvd - Published: 2026-03-07 16:15 - Updated: 2026-03-11 22:09

Severity ?

7.1 (High) - CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:L
6.5 (Medium) - CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N

Summary

References

	URL	Tags
	security-advisories@github.com	https://github.com/pyload/pyload/security/advisories/GHSA-6px9-j4qr-xfjw	Exploit, Vendor Advisory

Impacted products

	Vendor	Product	Version
	pyload-ng_project	pyload-ng	*

JSON

To clipboard

{
  "configurations": [
    {
      "nodes": [
        {
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:a:pyload-ng_project:pyload-ng:*:*:*:*:*:python:*:*",
              "matchCriteriaId": "530238B6-CD4D-4A83-B290-14E10FF47177",
              "versionEndExcluding": "0.5.0b3.dev97",
              "versionStartIncluding": "0.5.0b3.dev13",
              "vulnerable": true
            }
          ],
          "negate": false,
          "operator": "OR"
        }
      ]
    }
  ],
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "pyLoad is a free and open-source download manager written in Python. From version 0.5.0b3.dev13 to 0.5.0b3.dev96, the edit_package() function implements insufficient sanitization for the pack_folder parameter. The current protection relies on a single-pass string replacement of \"../\", which can be bypassed using crafted recursive traversal sequences. This issue has been patched in version 0.5.0b3.dev97."
    },
    {
      "lang": "es",
      "value": "pyLoad es un gestor de descargas gratuito y de c\u00f3digo abierto escrito en Python. Desde la versi\u00f3n 0.5.0b3.dev13 hasta la 0.5.0b3.dev96, la funci\u00f3n edit_package() implementa una sanitizaci\u00f3n insuficiente para el par\u00e1metro pack_folder. La protecci\u00f3n actual se basa en un reemplazo de cadena de una sola pasada de \u0027../\u0027, que puede ser eludido utilizando secuencias de recorrido recursivo manipuladas. Este problema ha sido parcheado en la versi\u00f3n 0.5.0b3.dev97."
    }
  ],
  "id": "CVE-2026-29778",
  "lastModified": "2026-03-11T22:09:15.240",
  "metrics": {
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        "cvssData": {
          "attackComplexity": "LOW",
          "attackVector": "NETWORK",
          "availabilityImpact": "LOW",
          "baseScore": 7.1,
          "baseSeverity": "HIGH",
          "confidentialityImpact": "NONE",
          "integrityImpact": "HIGH",
          "privilegesRequired": "LOW",
          "scope": "UNCHANGED",
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}

GHSA-6PX9-J4QR-XFJW

Vulnerability from github – Published: 2026-03-05 00:32 – Updated: 2026-03-09 15:49

Summary

pyLoad has an Arbitrary File Write via Path Traversal in edit_package()

Details

The edit_package() function implements insufficient sanitization for the pack_folder parameter. The current protection relies on a single-pass string replacement of "../", which can be bypassed using crafted recursive traversal sequences.

Exploitation

An authenticated user with MODIFY permission can bypass the sanitization by submitting a payload such as: pack_folder=..././..././..././tmp

After the single-pass replacement, this becomes: ../../../tmp

Because the traversal sequences are not properly validated, the resulting normalized path escapes the intended storage directory and writes files to /tmp or other locations.

Severity ?

7.1 (High)


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

Show details on source website

JSON

To clipboard

{
  "affected": [
    {
      "package": {
        "ecosystem": "PyPI",
        "name": "pyload-ng"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0.5.0b3.dev13"
            },
            {
              "last_affected": "0.5.0b3.dev96"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "aliases": [
    "CVE-2026-29778"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-23"
    ],
    "github_reviewed": true,
    "github_reviewed_at": "2026-03-05T00:32:19Z",
    "nvd_published_at": "2026-03-07T16:15:54Z",
    "severity": "HIGH"
  },
  "details": "The edit_package() function implements insufficient sanitization for the pack_folder parameter. The current protection relies on a single-pass string replacement of \"../\", which can be bypassed using crafted recursive traversal sequences.\n\nExploitation\n\nAn authenticated user with MODIFY permission can bypass the sanitization by submitting a payload such as:\n`pack_folder=..././..././..././tmp`\n\nAfter the single-pass replacement, this becomes:\n`../../../tmp`\n\nBecause the traversal sequences are not properly validated, the resulting normalized path escapes the intended storage directory and writes files to /tmp or other locations.",
  "id": "GHSA-6px9-j4qr-xfjw",
  "modified": "2026-03-09T15:49:37Z",
  "published": "2026-03-05T00:32:19Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://github.com/pyload/pyload/security/advisories/GHSA-6px9-j4qr-xfjw"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-29778"
    },
    {
      "type": "PACKAGE",
      "url": "https://github.com/pyload/pyload"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:L",
      "type": "CVSS_V3"
    }
  ],
  "summary": "pyLoad has an Arbitrary File Write via Path Traversal in edit_package()"
}

Sightings

Author	Source	Type	Date

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.

Action not permitted

CVE-2026-29778 (GCVE-0-2026-29778)

FKIE_CVE-2026-29778

GHSA-6PX9-J4QR-XFJW

Tags

Sightings

Nomenclature