Vulnerability-Lookup

GHSA-HV99-MXM5-Q397

Vulnerability from github – Published: 2026-04-16 20:43 – Updated: 2026-04-16 20:43

Summary

Weblate: Arbitrary File Read via Symlink

Details

Impact

The ZIP download feature didn't verify downloaded file and it could follow symlinks outside the repository.

Patches

https://github.com/WeblateOrg/weblate/pull/18683

References

Thanks to @DavidCarliez for reporting this vulnerability via GitHub.

Severity ?

7.7 (High)


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

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{
  "affected": [
    {
      "package": {
        "ecosystem": "PyPI",
        "name": "weblate"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "5.17"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "aliases": [
    "CVE-2026-34242"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-200",
      "CWE-22",
      "CWE-59"
    ],
    "github_reviewed": true,
    "github_reviewed_at": "2026-04-16T20:43:11Z",
    "nvd_published_at": "2026-04-15T19:16:35Z",
    "severity": "HIGH"
  },
  "details": "### Impact\n\nThe ZIP download feature didn\u0027t verify downloaded file and it could follow symlinks outside the repository.\n\n### Patches\n\n* https://github.com/WeblateOrg/weblate/pull/18683\n\n### References\n\nThanks to @DavidCarliez for reporting this vulnerability via GitHub.",
  "id": "GHSA-hv99-mxm5-q397",
  "modified": "2026-04-16T20:43:11Z",
  "published": "2026-04-16T20:43:11Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://github.com/WeblateOrg/weblate/security/advisories/GHSA-hv99-mxm5-q397"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-34242"
    },
    {
      "type": "WEB",
      "url": "https://github.com/WeblateOrg/weblate/commit/5db3a2a2e047ecaab627a8731cd744a30b2f51d3"
    },
    {
      "type": "PACKAGE",
      "url": "https://github.com/WeblateOrg/weblate"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:N/A:N",
      "type": "CVSS_V3"
    }
  ],
  "summary": "Weblate: Arbitrary File Read via Symlink"
}

CVE-2026-34242 (GCVE-0-2026-34242)

Vulnerability from cvelistv5 – Published: 2026-04-15 18:19 – Updated: 2026-04-15 20:02

Title

Weblate: Arbitrary File Read via Symlink

Summary

Weblate is a web based localization tool. In versions prior to 5.17, the ZIP download feature didn't verify downloaded files, potentially following symlinks outside the repository. This issue has been fixed in version 5.17.

Severity ?

7.7 (High)


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

CWE

CWE-22 - Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')
CWE-59 - Improper Link Resolution Before File Access ('Link Following')
CWE-200 - Exposure of Sensitive Information to an Unauthorized Actor

Assigner

GitHub_M

References

URL

Tags

	https://github.com/WeblateOrg/weblate/security/ad…	x_refsource_CONFIRM
	https://github.com/WeblateOrg/weblate/commit/5db3…	x_refsource_MISC

Impacted products

	Vendor	Product	Version
	WeblateOrg	weblate	Affected: < 5.17

Show details on NVD website

JSON

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{
  "containers": {
    "adp": [
      {
        "metrics": [
          {
            "other": {
              "content": {
                "id": "CVE-2026-34242",
                "options": [
                  {
                    "Exploitation": "none"
                  },
                  {
                    "Automatable": "no"
                  },
                  {
                    "Technical Impact": "partial"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2026-04-15T19:37:49.486231Z",
                "version": "2.0.3"
              },
              "type": "ssvc"
            }
          }
        ],
        "providerMetadata": {
          "dateUpdated": "2026-04-15T20:02:06.899Z",
          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
        },
        "title": "CISA ADP Vulnrichment"
      }
    ],
    "cna": {
      "affected": [
        {
          "product": "weblate",
          "vendor": "WeblateOrg",
          "versions": [
            {
              "status": "affected",
              "version": "\u003c 5.17"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "Weblate is a web based localization tool. In versions prior to 5.17, the ZIP download feature didn\u0027t verify downloaded files, potentially  following symlinks outside the repository. This issue has been fixed in version 5.17."
        }
      ],
      "metrics": [
        {
          "cvssV3_1": {
            "attackComplexity": "LOW",
            "attackVector": "NETWORK",
            "availabilityImpact": "NONE",
            "baseScore": 7.7,
            "baseSeverity": "HIGH",
            "confidentialityImpact": "HIGH",
            "integrityImpact": "NONE",
            "privilegesRequired": "LOW",
            "scope": "CHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:N/A:N",
            "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"
            }
          ]
        },
        {
          "descriptions": [
            {
              "cweId": "CWE-59",
              "description": "CWE-59: Improper Link Resolution Before File Access (\u0027Link Following\u0027)",
              "lang": "en",
              "type": "CWE"
            }
          ]
        },
        {
          "descriptions": [
            {
              "cweId": "CWE-200",
              "description": "CWE-200: Exposure of Sensitive Information to an Unauthorized Actor",
              "lang": "en",
              "type": "CWE"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-04-15T18:19:59.552Z",
        "orgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
        "shortName": "GitHub_M"
      },
      "references": [
        {
          "name": "https://github.com/WeblateOrg/weblate/security/advisories/GHSA-hv99-mxm5-q397",
          "tags": [
            "x_refsource_CONFIRM"
          ],
          "url": "https://github.com/WeblateOrg/weblate/security/advisories/GHSA-hv99-mxm5-q397"
        },
        {
          "name": "https://github.com/WeblateOrg/weblate/commit/5db3a2a2e047ecaab627a8731cd744a30b2f51d3",
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://github.com/WeblateOrg/weblate/commit/5db3a2a2e047ecaab627a8731cd744a30b2f51d3"
        }
      ],
      "source": {
        "advisory": "GHSA-hv99-mxm5-q397",
        "discovery": "UNKNOWN"
      },
      "title": "Weblate: Arbitrary File Read via Symlink"
    }
  },
  "cveMetadata": {
    "assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
    "assignerShortName": "GitHub_M",
    "cveId": "CVE-2026-34242",
    "datePublished": "2026-04-15T18:19:59.552Z",
    "dateReserved": "2026-03-26T16:22:29.034Z",
    "dateUpdated": "2026-04-15T20:02:06.899Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2"
}

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

GHSA-HV99-MXM5-Q397

Impact

Patches

References

CVE-2026-34242 (GCVE-0-2026-34242)

Tags

Sightings

Nomenclature