CVE-2026-123370
compose-lint: `fix --apply` can delete a line the user did not select, including a security setting
Description
compose-lint is a Docker Compose security linter that identifies dangerous misconfigurations before deployment. From 0.9.0 until 0.18.0, compose-lint's YAML parser recognizes lone carriage returns and Unicode line separators U+0085, U+2028, and U+2029 as line breaks while fix position conversion counts only newline characters. A pull request can place one of these separators in a quoted value so fix --apply shifts each later edit and deletes the line after the selected target, including an unselected network or other security setting. The resulting Compose file can remain valid, post-edit checks can pass, and the command can report a successful fix even though the dry-run diff was the only place showing the extra deletion. This issue is fixed in version 0.18.0.
INFO
Published Date :
Nov. 9, 2026, 5:34 p.m.
Last Modified :
Nov. 9, 2026, 5:34 p.m.
Remotely Exploit :
No
Source :
GitHub_M
Affected Products
The following products are affected by CVE-2026-123370
vulnerability.
Even if cvefeed.io is aware of the exact versions of the
products
that
are
affected, the information is not represented in the table below.
No affected product recoded yet
Solution
- Update compose-lint to version 0.18.0 or newer.
- Review and re-apply any previous fixes if necessary.
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The following list is the news that have been mention
CVE-2026-123370 vulnerability anywhere in the article.