CVE-2026-111667

MEDIUM 4.3

REBUILD through 4.5.0 Missing Authorization via /project/comments/list Endpoint

CVSS Score

4.3

EPSS Score

0.0%

EPSS Percentile

0th

REBUILD through 4.5.0 contains a missing authorization vulnerability in TaskCommentController.commentList that allows authenticated low-privileged users to read task comments without project membership checks. Attackers can supply the id of a task in a private project to the /project/comments/list endpoint to retrieve its comment content and attachment references.

CWE	CWE-639
Vendor	getrebuild
Product	rebuild
Published	Oct 16, 2026
Last Updated	Oct 16, 2026

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CVSS v3 Breakdown

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

Attack Vector

Network

Attack Complexity

Low

Privileges Required

Low

User Interaction

None

Scope

Unchanged

Confidentiality

Low

Integrity

None

Availability

None

Affected Versions

getrebuild / rebuild

0 ≤ 4.5.0

References

NVD ↗ CVE.org ↗ EPSS Data ↗

hackmd.io: https://hackmd.io/@hieuPenguinnn/getrebuild-rebuild-project-task-comment-idor github.com: https://github.com/getrebuild/rebuild/blob/4.5.0/src/main/java/com/rebuild/web/project/TaskCommentController.java#L37-L62 vulncheck.com: https://www.vulncheck.com/advisories/rebuild-through-4.5.0-missing-authorization-via-project-comments-list-endpoint

Credits

hieuPenguinnn