CVE-2026-82276 StarRocks CVE debrief

Who should care

Defenders responsible for StarRocks instances, particularly those with frontend HTTP port exposure, should assess and verify potential exposure. This includes verifying the exposure of StarRocks frontend HTTP port and assessing inventory for unauthenticated endpoint access. Defenders should also prioritize remediation for affected instances and implement compensating controls.

Why it matters

CVE-2026-82276 is an authentication bypass vulnerability in StarRocks through version 4.0.13. Defenders should verify exposure of StarRocks frontend HTTP port and assess inventory for unauthenticated endpoint access. The vulnerability allows attackers to access six unauthenticated endpoints to disclose sensitive information without credentials. Remediation priority is crucial for affected instances, and compensating controls should be implemented.

• Potential disclosure of cluster topology and database metadata
• Potential disclosure of JVM statistics and version information
• Verification of StarRocks instance exposure and endpoint access
• Prioritization of remediation for affected StarRocks instances

Technical summary

The vulnerability affects five REST handler classes in StarRocks through version 4.0.13 that override execute() directly instead of implementing executeWithoutPassword(). This allows attackers to access six unauthenticated endpoints and disclose sensitive information without credentials. The vulnerability has a CVSS score of 5.3 and a severity of MEDIUM. Defenders should prioritize verifying exposure of StarRocks frontend HTTP port and assessing inventory for unauthenticated endpoint access. Remediation priority is crucial for affected instances, and compensating controls should be implemented.

Defensive priority

Defenders should prioritize verifying exposure of StarRocks frontend HTTP port and assessing inventory for unauthenticated endpoint access.

Recommended defensive actions

• Verify StarRocks frontend HTTP port exposure and restrict access if necessary
• Assess inventory for unauthenticated endpoint access and implement compensating controls
• Monitor for suspicious activity on StarRocks instances
• Review compensating controls for exposed systems while remediation is scheduled and verified
• Check relevant monitoring, detection, and logs for exposed assets that need extra review
• Track exceptions, retest remediated assets, and close the item only after evidence is documented
• Confirm whether affected product deployments exist in managed environments and assign an owner for follow-up

Evidence notes

The CVE record and NVD entry provide details on the authentication bypass vulnerability in StarRocks through version 4.0.13. Official sources include CVE Program and NIST NVD. The vulnerability affects five REST handler classes that override execute() directly instead of implementing executeWithoutPassword(). Attackers can access six unauthenticated endpoints to disclose cluster topology, database metadata, JVM statistics, and version information without credentials. Limited source detail is provided, so defenders should verify StarR0

Sources and references

Methodology and review provenance

AI-assisted synthesis based on stored public vulnerability evidence. System validation, approval state, and publication status do not by themselves establish human review of this revision. PatchSiren helps prioritize defensive review and does not prove exposure or remediation on any system.