概要
Tomcat clustering is often deployed through a mix of application dependencies, external servlet containers, and environment-specific `server.xml` files. CVE-2026-29146 depends on both an affected runtime and EncryptInterceptor configuration, so FixVibe reports the correlated repository evidence without presenting it as confirmed production exposure.
仕組み
The repo check evaluates both the declared Tomcat runtime and the relevant cluster-encryption posture. A reported finding contains actionable dependency and configuration locations, and encryption-key material is never retained.
被害範囲
If the matched runtime and cluster configuration are deployed and an attacker can reach or observe the relevant inter-node channel, the encryption behavior may expose sensitive cluster traffic under the advisory conditions. Repository correlation makes remediation actionable, but it does not prove the configuration is deployed, the cluster channel is reachable, or any plaintext was recovered.
// fixvibeのチェック内容
FixVibeのチェック内容
FixVibe maps externally visible application surfaces with passive signals and safe metadata checks. Reports summarize the exposed surface and remediation priorities. For check-specific questions about exact detection heuristics, active payload details, or source-code rule patterns, contact support@fixvibe.app.
鉄壁の防御
Upgrade to the latest supported Tomcat release, no lower than 9.0.117, 10.1.54, or 11.0.21 for the active line; migrate Tomcat 7, 8.5, and 10.0 deployments to a supported line. Align all cluster nodes and Tomcat modules, rebuild and redeploy the actual runtime, and rotate any literal cluster encryption key that entered source control before loading its replacement from an approved runtime secret source.