Auth bypass in Bytebase
CVE-2026-115322
Bytebase before 3.16.0 contains an authorization bypass vulnerability in GetTaskRunLog, GetTaskRunSession and PreviewTaskRunRollback that allows authenticated users to access other projects' task runs by UID. Attackers with permission on one project can supply foreign task or task run UIDs to read execution logs, database session details, and rollback SQL from other projects.
Vulnerability class: IDOR (Insecure Direct Object Reference)
Published · last modified .
CVSS v3 metric
CVSS v3 base score 4.3 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N.
EPSS exploit prediction
No EPSS score from FIRST.org yet. New CVEs usually get one within a few days; no score means no signal yet, not low risk. How EPSS works.
Affected products
Weakness classification (CWE)
References
- github.com/bytebase/bytebase/issues/19369 (issue-tracking)
- github.com/bytebase/bytebase/pull/19554 (issue-tracking, patch)
- github.com/bytebase/bytebase/commit/bb553e8423b38c826cd7b1da5c7117080cc8705d (patch)
- github.com/bytebase/bytebase/releases/tag/3.16.0 (release-notes)
- github.com/bytebase/bytebase/blob/3.15.1/backend/api/v1/rollout_service.go (technical-description)
- github.com/bytebase/bytebase (product)
- www.vulncheck.com/advisories/bytebase-before-3.16.0-authorization-bypass-via-ro… (third-party-advisory)
Frequently asked questions
- What is CVE-2026-115322?
- CVE-2026-115322 is a medium-severity vulnerability in Bytebase, classified under Authorization Bypass Through User-Controlled Key. CVSS score: 4.3/10. Published 2026-10-22.
- How severe is CVE-2026-115322?
- Medium severity. CVSS v3 base score is 4.3 out of 10.