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CVE-2026-104252

9.8 critical SSVC exploitation: none Analyzed
NVD · CVE.org

Vitess is a database clustering system for horizontal scaling of MySQL. Prior to 23.0.5 and 24.0.2, twopczHandler in go/vt/vttablet/tabletserver/twopcz.go writes the Action and dtid form values from the vttablet and vtcombo /twopcz HTTP debug endpoint into a text/html response without HTML escaping. Under the default allow-all ACL policy, a remote unauthenticated attacker can send an operator a crafted request that executes script in the operator's browser after the request is opened. The script runs with the vttablet debug origin and can read same-origin diagnostic endpoints that expose query, transaction, environment, variable, or profiling data available in that deployment. This issue is fixed in versions 23.0.5 and 24.0.2.

Fix

Patch, vendor advisory and mitigation references on NVD 7

Every line above is quoted from NVD, CISA, Microsoft, the vendor's own advisory or DISA; nothing is generated.

Change history 4

  1. Cpes+1 CPE criteria (now 1)NVD modified 2026-10-23 15:14
  2. StatusAwaiting Analysis → AnalyzedNVD modified 2026-10-23 15:14
  3. StatusReceived → Awaiting AnalysisNVD modified 2026-10-16 16:00
  4. First seenCVSS 9.8NVD modified 2026-10-13 20:17

Affected (CPE criteria) 1

  • cpe:2.3:a:linuxfoundation:vitess:*:*:*:*:*:*:*:*

References 9