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Medium · 4.3 CVE-2026-115321 EUVD-2026-108123GHSA-27j2-crf8-3w95

Bytebase before 3.16.0 Authorization Bypass via UpdateIssueComment

Published Oct 22, 2026 · Updated Oct 23, 2026 · Assigned by VulnCheck

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.

Affected products

VendorProductAffectedFixed
bytebase bytebase < 3.16.0 3.16.0

References