CVE-2026-65959

Vitess: Missing authorization on vttablet /debug/vrlog exposes live VReplication SQL data

Published Aug 18, 2026 CVSS 3.1 · 5.3 Medium EPSS < 1% KEV · Not listed
Description
Vitess is a database clustering system for horizontal scaling of MySQL. In 24.0.2 and earlier, the /debug/vrlog endpoint registered by addHttpEndpoint() in go/vt/vttablet/tabletmanager/vreplication/vrlog.go invokes vrlogStatsHandler() without acl.CheckAccessHTTP(r, acl.DEBUGGING), unlike comparable debug endpoints. A remote caller who can reach the vttablet debug HTTP port can bypass the configured security policy and stream VrLogStats data produced from NewVrLogStats().Send(), including literal SQL statements and bound application values from MoveTables, Reshard, Materialize, and vitess-strategy Online DDL workflows

Remediation

No solution or workaround provided in the CVE record

Tracking

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Advisories

Source ID Title
Github GHSA Github GHSA GHSA-mhc4-g3wh-cw7m Vitess: Missing authorization on vttablet /debug/vrlog exposes live VReplication SQL data
History
Type Values Removed Values Added
First Time appeared Linuxfoundation
Linuxfoundation vitess
CPEs cpe:2.3:a:linuxfoundation:vitess:*:*:*:*:*:*:*:*
Vendors & Products Linuxfoundation
Linuxfoundation vitess
Type Values Removed Values Added
First Time appeared Vitessio
Vitessio vitess
Vendors & Products Vitessio
Vitessio vitess
Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'yes', 'Exploitation': 'poc', 'Technical Impact': 'partial'}, 'version': '2.0.3'}

Type Values Removed Values Added
Description Vitess is a database clustering system for horizontal scaling of MySQL. In 24.0.2 and earlier, the /debug/vrlog endpoint registered by addHttpEndpoint() in go/vt/vttablet/tabletmanager/vreplication/vrlog.go invokes vrlogStatsHandler() without acl.CheckAccessHTTP(r, acl.DEBUGGING), unlike comparable debug endpoints. A remote caller who can reach the vttablet debug HTTP port can bypass the configured security policy and stream VrLogStats data produced from NewVrLogStats().Send(), including literal SQL statements and bound application values from MoveTables, Reshard, Materialize, and vitess-strategy Online DDL workflows
Title Vitess: Missing authorization on vttablet /debug/vrlog exposes live VReplication SQL data
Weaknesses CWE-862
References
Metrics cvssV3_1

{'score': 5.3, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N'}

Weaknesses

Sources

Status
PUBLISHED
Assigner
GitHub_M
Published
Updated
Aug 18, 2026, 6:41 PM
Reserved
Jul 23, 2026, 6:15 PM
Status
Analyzed
Published
Aug 18, 2026, 7:17 PM
Modified
Oct 30, 2026, 6:06 PM