CVE-2026-82116 in HiRDB Server
Summary
by MITRE • 10/27/2026
Missing Authentication for Critical Function Vulnerability in HiRDB.
This issue affects HiRDB Server Version 10: from 10-00 before 10-12-01; HiRDB Server Version 9: from 09-00 through 09-66-22; HiRDB Server with Additional Function Version 9: from 09-00 through 09-66/V; HiRDB Server Version 9(32): from 09-02 through 09-66-22; HiRDB Server with Additional Function Version 9(32): from 09-00 through 09-66-/V.
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Analysis
by VulDB Data Team • 10/27/2026
The vulnerability identified in HiRDB database server software represents a critical failure in access control mechanisms, specifically categorized under the Common Weakness Enumeration as CWE-306: Missing Authentication for Critical Function. This flaw allows unauthenticated actors to perform sensitive operations that should require strict identity verification and authorization checks. The affected versions span across multiple releases of HiRDB Server Version 10 prior to patch level 10-12-01, as well as various iterations of Version 9 including standard server editions, additional function variants, and thirty-two-bit specific builds ranging from early release points up through version 66. This broad scope indicates a systemic issue within the authentication logic that persisted across significant portions of the product lifecycle before being addressed in later patches.
From a technical perspective, this vulnerability likely stems from an oversight in the application layer where certain administrative or data-manipulation endpoints do not validate session tokens, credentials, or access control lists before executing commands. In database management systems such as HiRDB, which are designed to handle structured data storage and retrieval for enterprise applications, functions like schema modification, user privilege escalation, or direct SQL execution often require elevated privileges. When authentication is bypassed, an attacker can interact with these endpoints directly via network requests without providing valid login credentials. This typically involves crafting specific HTTP or database protocol packets that target the unprotected API methods, effectively treating restricted administrative interfaces as public-facing resources.
The operational impact of this vulnerability is severe due to the nature of database servers being central to organizational data integrity and availability. An unauthenticated attacker could potentially extract sensitive information by querying protected tables, modify critical records leading to data corruption or loss, or even execute system-level commands if the database service runs with elevated operating system privileges. This aligns closely with MITRE ATT&CK techniques such as T1078: Valid Accounts when combined with credential theft from other sources, but in this specific case, it represents a more direct exploitation path where no initial foothold or stolen credentials are required to gain unauthorized access. The ability to bypass authentication entirely removes the primary defense layer of most security architectures, allowing for immediate data exfiltration, tampering, or denial of service conditions depending on the capabilities exposed by the vulnerable functions.
Mitigation strategies must focus primarily on applying the vendor-provided patches that address these specific version ranges. For organizations running HiRDB Server Version 10, upgrading to version 10-12-01 or later is essential. Similarly, users of Version 9 and its variants should ensure they are at least at patch level 66-22 for standard servers or the corresponding V suffix versions for additional function builds. In environments where immediate patching is not feasible due to operational constraints, network-level controls such as firewall rules restricting access to database ports from untrusted networks can provide a temporary compensating control. Additionally, implementing strict input validation and ensuring that all administrative interfaces are only accessible via secure, authenticated channels through reverse proxies or API gateways can help mitigate the risk until permanent fixes are deployed. Regular security audits and penetration testing should also be conducted to verify that no other endpoints suffer from similar authentication bypass flaws.