CVE-2026-111667

EUVD-2026-102958
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.
ProviderTypeBase ScoreAtk. VectorAtk. ComplexityPriv. RequiredVector
VulnCheckCNA
4.3 MEDIUM
NETWORK
LOW
LOW
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N
Base Score
CVSS 3.x
EPSS Score
Percentile: 22.01%
Early Detection
Affected products identified ahead of NVD analysis through intelligence sources.
VendorProductVersionSource
getrebuildrebuild
𝑥
≤ 4.5.0
CNA
Common Weakness Enumeration
References
https://github.com/getrebuild/rebuild/blob/4.5.0/src/main/java/com/rebuild/web/project/TaskCommentController.java#L37-L62
https://hackmd.io/@hieuPenguinnn/getrebuild-rebuild-project-task-comment-idor
https://www.vulncheck.com/advisories/rebuild-through-4.5.0-missing-authorization-via-project-comments-list-endpoint
https://hackmd.io/@hieuPenguinnn/getrebuild-rebuild-project-task-comment-idor