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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Vitess组织开源的一款数据库集群编排系统。 Vitess 24.0.2及之前版本存在授权问题漏洞，该漏洞源于/debug/vrlog端点未进行访问控制检查，导致远程攻击者可绕过安全策略，获取包括SQL语句和绑定应用值在内的敏感数据。

CVSS 5.3 · Medium EPSS 0.43% · P35

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
Vulnerability Title
Vitess 授权问题漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Vitess是Vitess组织开源的一款数据库集群编排系统。 Vitess 24.0.2及之前版本存在授权问题漏洞，该漏洞源于/debug/vrlog端点未进行访问控制检查，导致远程攻击者可绕过安全策略，获取包括SQL语句和绑定应用值在内的敏感数据。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

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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