CVE-2026-24013 -- CVSS 9.1 Vulnerability Briefing

CVE-2026-24013 | CVSS 9.1 (Critical) | Exploit: No known exploit

What Is It

CVE-2026-24013 is an authentication bypass vulnerability in Apache IoTDB, affecting the Thrift RPC interface where certain query handlers fail to properly validate session identifiers.

Technical Detail

The flaw exists in specific Thrift RPC query handlers within Apache IoTDB that do not enforce strict validation of the sessionId parameter. An unauthenticated or low-privileged attacker can craft requests containing a forged sessionId value to impersonate a legitimate authenticated session, bypassing access controls without supplying valid credentials. Successful exploitation could allow an attacker to execute unauthorized queries, access sensitive time-series data, or perform privileged operations within the database depending on the permissions associated with the spoofed session.

Exploitation Status

No known exploit code has been publicly observed or confirmed as of July 12, 2026. This vulnerability is not listed in the CISA Known Exploited Vulnerabilities catalog. The exploit maturity is currently assessed as no known exploit, meaning no public proof-of-concept or operational tooling has been identified at this time, though the high CVSS score of 9.1 and the straightforward nature of session spoofing attacks suggest the barrier to exploitation may be relatively low.

Who Is Targeting This

No specific threat actor attribution at this time. Neither confirmed nor reported threat actor associations have been identified in connection with this vulnerability.

What To Do

Organizations running Apache IoTDB should apply the vendor-supplied patch as soon as it becomes available and treat this as a high-priority remediation given the critical CVSS score and the nature of the authentication bypass. As an interim measure, restrict network access to the Thrift RPC interface using firewall rules or network segmentation, limiting exposure to trusted hosts only. Audit IoTDB logs for anomalous session activity, particularly requests that reference session identifiers not associated with established client connections. Monitor the Apache IoTDB security advisories page for patch release details and version guidance. If the Thrift RPC interface is not operationally required, consider disabling it until a fix is applied.