CVE-2026-115321 Bytebase before 3.16.0 Authorization Bypass via UpdateIssueComment
- Exploited in the wild
- Not known
- Fix
- None listed
What is CVE-2026-115321?
CVE-2026-115321 is a medium-severity vulnerability in bytebase, published on 22 Oct 2026.
Official description
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.
Weakness: CWE-639
Which versions are affected by CVE-2026-115321?
How do I fix CVE-2026-115321?
No fix has been published for CVE-2026-115321 yet. Limit exposure of the affected software until one is available.
Is CVE-2026-115321 being exploited?
There is no known exploitation of CVE-2026-115321 in the wild and no public exploit code.
Sources
Also known as GHSA-27j2-crf8-3w95.