Vitess vttablet /twopcz reflected XSS

MITRE NVD CVE.ORG JSON API

Summary

CVECVE-2026-104252
StatePUBLISHED
AssignerGitHub_M
Source PriorityCVE Program / NVD first with legacy fallback
Published2026-10-13 20:17:12 UTC
Updated2026-10-13 20:17:12 UTC
DescriptionVitess 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.

Risk And Classification

Primary CVSS: v3.1 9.8 CRITICAL from [email protected]

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Problem Types: CWE-79 | CWE-79 CWE-79: Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')

VersionSourceTypeScoreSeverityVector
3.1[email protected]Secondary9.8CRITICALCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
3.1CNADECLARED9.8CRITICALCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

CVSS v3.1 Breakdown

Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
High

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Vendor Declared Affected Products

SourceVendorProductVersionPlatforms
CNA Vitessio Vitess affected < 23.0.5 Not specified
CNA Vitessio Vitess affected >= 24.0.0, < 24.0.2 Not specified

References

ReferenceSourceLinkTags
github.com/vitessio/vitess/security/advisories/GHSA-v75v-6fpf-gvw8 [email protected] github.com
github.com/vitessio/vitess/commit/976e1e0d78f9d29d02e5e31b4aa7e180648f08af [email protected] github.com
github.com/vitessio/vitess/commit/3140c1846cd120db34f33b2083139b4ab638aed2 [email protected] github.com
github.com/vitessio/vitess/pull/20255 [email protected] github.com
github.com/vitessio/vitess/releases/tag/v24.0.2 [email protected] github.com
github.com/vitessio/vitess/pull/20273 [email protected] github.com
github.com/vitessio/vitess/pull/20274 [email protected] github.com
github.com/vitessio/vitess/releases/tag/v23.0.5 [email protected] github.com
github.com/vitessio/vitess/commit/c1ed96302e658190168c971afdac730cf70e43f7 [email protected] github.com
CVE Program record CVE.ORG www.cve.org canonical
NVD vulnerability detail NVD nvd.nist.gov canonical, analysis

© CVE.report 2026

Use of this information constitutes acceptance for use in an AS IS condition. There are NO warranties, implied or otherwise, with regard to this information or its use. Any use of this information is at the user's risk. It is the responsibility of user to evaluate the accuracy, completeness or usefulness of any information, opinion, advice or other content. EACH USER WILL BE SOLELY RESPONSIBLE FOR ANY consequences of his or her direct or indirect use of this web site. ALL WARRANTIES OF ANY KIND ARE EXPRESSLY DISCLAIMED. This site will NOT BE LIABLE FOR ANY DIRECT, INDIRECT or any other kind of loss.

CVE, CWE, and OVAL are registred trademarks of The MITRE Corporation and the authoritative source of CVE content is MITRE's CVE web site. This site includes MITRE data granted under the following license.

Free CVE JSON API cve.report/api

CVE.report and Source URL Uptime Status status.cve.report