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CVE-2026-65959— Vitess: Missing authorization on vttablet /debug/vrlog exposes live VReplication SQL data

Quick assessment

Affected
vitessio vitess
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

Vitess 是一种用于 MySQL 水平扩展的数据库集群系统。在 24.0.2 及更早版本中，由 中的 注册的 端点调用了 ，但未像其他可比对的调试端点那样执行 访问控制检查。 远程攻击者只要能够访问 vttablet 的调试 HTTP 端口，即可绕过已配置的安全策略，并通过 生成的数据流获取 VrLogStats 信息。这些数据包括明文 SQL 语句以及来自 MoveTables、Reshard、Materialize 和 vitess-strategy 在线 DDL 工作流的绑定应用程序值，从而导致敏感信息泄

CVSS 5.3 · Medium EPSS 0.31% · P24

Affected Version Matrix 1

VendorProduct Version RangeStatus
vitessio vitess <= 24.0.2 affected
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I. Basic Information for CVE-2026-65959

Vulnerability Information
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Vulnerability Title
Vitess: Missing authorization on vttablet /debug/vrlog exposes live VReplication SQL data
Source: CVE Program / CVE List V5
Vulnerability 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
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
Source: CVE Program / CVE List V5
Vulnerability Type
授权机制缺失
Source: CVE Program / CVE List V5

Affected Products

Vendor Product Affected Versions CPE Subscribe
vitessio vitess <= 24.0.2 -

II. Public POCs for CVE-2026-65959

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III. Intelligence Information for CVE-2026-65959

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Patches & Fixes for CVE-2026-65959 (1)

Vendor Advisories for CVE-2026-65959 (1)

IV. Related Vulnerabilities

Same product: vitess
Same vendor: vitessio
Same weakness: CWE-862

V. Comments for CVE-2026-65959

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