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.
History

Thu, 11 Jun 2026 00:30:00 +0000

Type Values Removed Values Added
Title Controlled Path Traversal Allowing Symbolic Link Creation in Debusine Package Parser

Wed, 10 Jun 2026 22:15:00 +0000

Type Values Removed Values Added
Title Debusine Arbitrary Symbolic Link Creation Allows File Overwrite
Weaknesses CWE-22

Wed, 10 Jun 2026 19:30:00 +0000

Type Values Removed Values Added
Weaknesses CWE-59
Metrics cvssV3_1

{'score': 6.5, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N'}

ssvc

{'options': {'Automatable': 'yes', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}


Wed, 10 Jun 2026 11:30:00 +0000

Type Values Removed Values Added
First Time appeared Debian
Debian debusine
Vendors & Products Debian
Debian debusine

Wed, 10 Jun 2026 10:45:00 +0000

Type Values Removed Values Added
Title Debusine Arbitrary Symbolic Link Creation Allows File Overwrite
Weaknesses CWE-22

Wed, 10 Jun 2026 09:45:00 +0000

Type Values Removed Values Added
Description 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.
References

cve-icon MITRE

Status: PUBLISHED

Assigner: debian

Published: 2026-06-10T09:10:30.301Z

Updated: 2026-06-10T18:50:09.394Z

Reserved: 2026-06-10T08:25:48.992Z

Link: CVE-2026-11853

cve-icon Vulnrichment

Updated: 2026-06-10T18:49:22.316Z

cve-icon NVD

Status : Deferred

Published: 2026-06-10T10:16:31.467

Modified: 2026-06-10T20:11:16.543

Link: CVE-2026-11853

cve-icon Redhat

No data.