Vulnerability-Lookup

GHSA-29FV-9Q46-Q5G2

Vulnerability from github – Published: 2026-06-10 12:33 – Updated: 2026-06-10 21:31

Details

Debusine is an integrated solution to build, distribute and maintain a Debian-based distribution. Debian source packages (.dsc) and upload artifacts (.changes) are manifest files that name the files that make up the artifact. The parser used to read these files in Debusine accepted arbitrary fully user-controlled paths. The mergeuploads task could be abused to create arbitrary symbolic links on a worker, overwriting any file that the worker user has access to.

Severity

6.5 (Medium)


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

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JSON

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{
  "affected": [],
  "aliases": [
    "CVE-2026-11853"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-59"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2026-06-10T10:16:31Z",
    "severity": "MODERATE"
  },
  "details": "Debusine is an integrated solution to build, distribute and maintain a Debian-based distribution. Debian source packages (.dsc) and upload artifacts (.changes) are manifest files that name the files that make up the artifact. The parser used to read these files in Debusine accepted arbitrary fully user-controlled paths. The mergeuploads task could be abused to create arbitrary symbolic links on a worker, overwriting any file that the worker user has access to.",
  "id": "GHSA-29fv-9q46-q5g2",
  "modified": "2026-06-10T21:31:36Z",
  "published": "2026-06-10T12:33:22Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-11853"
    },
    {
      "type": "WEB",
      "url": "https://salsa.debian.org/freexian-team/debusine/-/commit/c24cdc49fb258714767546bdec5b09f8065d414e"
    },
    {
      "type": "WEB",
      "url": "https://salsa.debian.org/freexian-team/debusine/-/merge_requests/3103"
    },
    {
      "type": "WEB",
      "url": "https://salsa.debian.org/freexian-team/debusine/-/work_items/1484"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N",
      "type": "CVSS_V3"
    }
  ]
}

CVE-2026-11853 (GCVE-0-2026-11853)

Vulnerability from cvelistv5 – Published: 2026-06-10 09:10 – Updated: 2026-06-10 18:50

Summary

Severity

6.5 (Medium)


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

SSVC

Exploitation: none Automatable: yes Technical Impact: partial

CISA Coordinator (v2.0.3)

CWE

CWE-59 - Improper Link Resolution Before File Access ('Link Following')

Assigner

debian

References

3 references

URL	Tags
https://salsa.debian.org/freexian-team/debusine/-…
https://salsa.debian.org/freexian-team/debusine/-…
https://salsa.debian.org/freexian-team/debusine/-…

Impacted products

1 product

Vendor	Product	Version
Debian	debusine	Affected: 0.12.0 , < 0.14.9 (semver)

Show details on NVD website

JSON

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{
  "containers": {
    "adp": [
      {
        "metrics": [
          {
            "cvssV3_1": {
              "attackComplexity": "LOW",
              "attackVector": "NETWORK",
              "availabilityImpact": "NONE",
              "baseScore": 6.5,
              "baseSeverity": "MEDIUM",
              "confidentialityImpact": "LOW",
              "integrityImpact": "LOW",
              "privilegesRequired": "NONE",
              "scope": "UNCHANGED",
              "userInteraction": "NONE",
              "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N",
              "version": "3.1"
            }
          },
          {
            "other": {
              "content": {
                "id": "CVE-2026-11853",
                "options": [
                  {
                    "Exploitation": "none"
                  },
                  {
                    "Automatable": "yes"
                  },
                  {
                    "Technical Impact": "partial"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2026-06-10T18:49:26.303190Z",
                "version": "2.0.3"
              },
              "type": "ssvc"
            }
          }
        ],
        "problemTypes": [
          {
            "descriptions": [
              {
                "cweId": "CWE-59",
                "description": "CWE-59 Improper Link Resolution Before File Access (\u0027Link Following\u0027)",
                "lang": "en",
                "type": "CWE"
              }
            ]
          }
        ],
        "providerMetadata": {
          "dateUpdated": "2026-06-10T18:50:09.394Z",
          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
        },
        "title": "CISA ADP Vulnrichment"
      }
    ],
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "product": "debusine",
          "vendor": "Debian",
          "versions": [
            {
              "changes": [
                {
                  "at": "0.14.9",
                  "status": "unaffected"
                }
              ],
              "lessThan": "0.14.9",
              "status": "affected",
              "version": "0.12.0",
              "versionType": "semver"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "supportingMedia": [
            {
              "base64": false,
              "type": "text/html",
              "value": "Debusine is an integrated solution to build, distribute and maintain a Debian-based distribution. Debian source packages (.dsc) and upload artifacts (.changes) are manifest files that name the files that make up the artifact. The parser used to read these files in Debusine accepted arbitrary fully user-controlled paths. The mergeuploads task could be abused to create arbitrary symbolic links on a worker, overwriting any file that the worker user has access to."
            }
          ],
          "value": "Debusine is an integrated solution to build, distribute and maintain a Debian-based distribution. Debian source packages (.dsc) and upload artifacts (.changes) are manifest files that name the files that make up the artifact. The parser used to read these files in Debusine accepted arbitrary fully user-controlled paths. The mergeuploads task could be abused to create arbitrary symbolic links on a worker, overwriting any file that the worker user has access to."
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-06-10T09:12:23.194Z",
        "orgId": "79363d38-fa19-49d1-9214-5f28da3f3ac5",
        "shortName": "debian"
      },
      "references": [
        {
          "url": "https://salsa.debian.org/freexian-team/debusine/-/work_items/1484"
        },
        {
          "url": "https://salsa.debian.org/freexian-team/debusine/-/merge_requests/3103"
        },
        {
          "url": "https://salsa.debian.org/freexian-team/debusine/-/commit/c24cdc49fb258714767546bdec5b09f8065d414e"
        }
      ],
      "source": {
        "discovery": "UNKNOWN"
      },
      "x_generator": {
        "engine": "Vulnogram 1.0.2"
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "79363d38-fa19-49d1-9214-5f28da3f3ac5",
    "assignerShortName": "debian",
    "cveId": "CVE-2026-11853",
    "datePublished": "2026-06-10T09:10:30.301Z",
    "dateReserved": "2026-06-10T08:25:48.992Z",
    "dateUpdated": "2026-06-10T18:50:09.394Z",
    "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.

Action not permitted

GHSA-29FV-9Q46-Q5G2

CVE-2026-11853 (GCVE-0-2026-11853)

Tags

Sightings

Nomenclature