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VULNERABILITIES

CVE-2026-115321 Details

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.

Metrics

CVSS 3.x Severity and Vector Strings:

CNA: [email protected]CVSS-B:4.3 MEDIUMVector:CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N

References to Advisories, Solutions, and Tools

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URLSource(s)Tag(s)
https://github.com/bytebase/bytebase [email protected]
https://github.com/bytebase/bytebase/blob/3.15.1/backend/api/v1/issue_service.go#L1116 [email protected]
https://github.com/bytebase/bytebase/commit/270e25529731b59988b58f4a4b3bda431c748bc9 [email protected]
https://github.com/bytebase/bytebase/issues/19369 [email protected]
https://github.com/bytebase/bytebase/pull/19552 [email protected]

see all 7 references

Weakness Enumeration

CWE-IDCWE NameSource
CWE-639Authorization Bypass Through User-Controlled Key[email protected]

Affected Products

No affected product data is available for this CVE.

Change History

2 change records found show changes

QUICK INFO

CVE Dictionary Entry:
CVE-2026-115321
NVD Published Date:
Oct 22, 2026
NVD Last Modified:
Oct 23, 2026
Source:
[email protected]
CVE-2026-115321 Details - Not Deferred