DailyCVE@dailycve
🔴 Vitess, Reflected Cross-Site Scripting, #CVE-2026-104252 (Critical) -DC-Oct2026-3249 https://dailycve.com/vitess-reflected-cross-site-scripting-cve-2026-104252-critical-dc-oct2026-3249/
0000026
242 followersView on X
CVE-2026-104252
LOWCVSS 9.8 · CRITICALSignal is active with 1 mentions in latest observed window
Immediate actions
- Track advisory updates for patch or workaround availability
Recommended action window: Monitor and triage in normal cycle
NVD description
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.
0.0/ 10 priority
Sources & remediation
Other references
- 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/pull/20255
- https://github.com/vitessio/vitess/pull/20273
Weakness type (CWE)
CWE-79
Priority
LOW
Exploitation
NONE
PoC
NONE
Patch
NONE
Momentum
NONE
Threat summary
- 1 mentions across 1 observed day
What's happening
- 1 total mentions across 1 day