CVE-2026-115800
Description
A flaw was found in mllm. In the Convertor component, the load_model function improperly validates file path inputs. A local attacker can exploit this path traversal flaw by supplying a manipulated shard_file argument, potentially allowing unauthorized access or modification of files outside the intended directory.
Statement
This vulnerability is rated as having Moderate severity because exploitation requires local access and authenticated privileges on the host, restricting the blast radius to files accessible by the executing user. Red Hat products do not ship or support the mllm package, and standard enterprise environments do not include this conversion tooling by default. Consequently, typical Red Hat deployments are not exposed to this path traversal flaw unless third-party integrations explicitly process untrusted shard path inputs.
Understanding the Weakness (CWE)
Integrity,Confidentiality,Availability
Technical Impact: Execute Unauthorized Code or Commands
The attacker may be able to create or overwrite critical files that are used to execute code, such as programs or libraries.
Integrity
Technical Impact: Modify Files or Directories
The attacker may be able to overwrite or create critical files, such as programs, libraries, or important data. If the targeted file is used for a security mechanism, then the attacker may be able to bypass that mechanism. For example, appending a new account at the end of a password file may allow an attacker to bypass authentication.
Confidentiality
Technical Impact: Read Files or Directories
The attacker may be able to read the contents of unexpected files and expose sensitive data. If the targeted file is used for a security mechanism, then the attacker may be able to bypass that mechanism. For example, by reading a password file, the attacker could conduct brute force password guessing attacks in order to break into an account on the system.
Availability
Technical Impact: DoS: Crash, Exit, or Restart
The attacker may be able to overwrite, delete, or corrupt unexpected critical files such as programs, libraries, or important data. This may prevent the product from working at all and in the case of protection mechanisms such as authentication, it has the potential to lock out product users.
Frequently Asked Questions
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