CVE-2026-104252
CVE-2026-104252 · Vitess vttablet /twopcz reflected XSS
This page contains facts from public vulnerability sources. Check the original advisory before updating.
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.
CVSS 9.8 · Critical · EPSS 0.9%
- Published
- Updated
Affected products and versions
vitess
- Versions
- < 23.0.5: Affected
- >= 24.0.0, < 24.0.2: Affected
No fix published
Original sources
- https://github.com/vitessio/vitess/security/advisories/GHSA-v75v-6fpf-gvw8
- https://github.com/vitessio/vitess/pull/20255
- https://github.com/vitessio/vitess/pull/20273
- https://github.com/vitessio/vitess/pull/20274
- https://github.com/vitessio/vitess/commit/3140c1846cd120db34f33b2083139b4ab638aed2
- https://github.com/vitessio/vitess/commit/976e1e0d78f9d29d02e5e31b4aa7e180648f08af
- https://github.com/vitessio/vitess/commit/c1ed96302e658190168c971afdac730cf70e43f7
- https://github.com/vitessio/vitess/releases/tag/v23.0.5
- https://github.com/vitessio/vitess/releases/tag/v24.0.2
- https://nvd.nist.gov/vuln/detail/CVE-2026-104252