CVE-2026-115321
CVE-2026-115321 · Bytebase before 3.16.0 Authorization Bypass via UpdateIssueComment
This page contains facts from public vulnerability sources. Check the original advisory before updating.
Bytebase before 3.16.0 contains an authorization bypass vulnerability in the UpdateIssueComment handler that allows low-privileged project users to modify comments in other projects by supplying a foreign comment UID. Attackers with any project role, including Project Viewer, can set their own project's issue as parent and reference another project's comment UID to overwrite comments they cannot access.
CVSS 5.3 · Medium · EPSS 0.2% · Fix available
- Published
- Updated
Affected products and versions
bytebase
- Versions
- ≥ 0, < 3.16.0: Affected (semver)
- 3.16.0: Not affected (semver)
Update to 3.16.0
Original sources
- https://github.com/bytebase/bytebase/issues/19369
- https://github.com/bytebase/bytebase/pull/19552
- https://github.com/bytebase/bytebase/commit/270e25529731b59988b58f4a4b3bda431c748bc9
- https://github.com/bytebase/bytebase/releases/tag/3.16.0
- https://github.com/bytebase/bytebase/blob/3.15.1/backend/api/v1/issue_service.go#L1116
- https://github.com/bytebase/bytebase
- https://www.vulncheck.com/advisories/bytebase-before-3.16.0-authorization-bypass-via-updateissuecomment
- https://nvd.nist.gov/vuln/detail/CVE-2026-115321