Vendor
Ollama
16 known vulnerabilities.
Products
14 results · Clear filters · Feed
-
High 7.8CVE-2026-102697 Public exploit
Ollama 0.14.0 before 0.31.2 Experimental Agent Bash Approval Bypass via Prefix-Based Authorization
Ollama versions 0.14.0 before 0.31.2 contain an incorrect authorization vulnerability in the experimental agent mode Bash tool approval mechanism that fails to properly parse shell syntax. Attackers who can influence model output through prompt injection can …
-
High 7.5
Ollama 0.30.0 through 0.33.2 SSRF via Cross-Host Tensor Blob Redirect
Ollama fails to validate redirect destinations when pulling tensor-layer models, allowing unauthenticated attackers to redirect blob downloads to arbitrary hosts. An attacker can control a registry, serve a malicious tensor-layer manifest, and cause the serve…
-
High 7.5
Ollama Remote Denial of Service via Attacker-Controlled Allocation in GGUF Metadata Parser
Ollama (HEAD f0078ae) contains an uncontrolled memory allocation vulnerability in the GGUF metadata parser that allows remote attackers to crash the server by supplying a crafted GGUF file with attacker-controlled length and count fields in string lengths, te…
-
High 7.5
Ollama downloadBlob Improper Validation of Array Index Denial-of-Service Vulnerability
Ollama downloadBlob Improper Validation of Array Index Denial-of-Service Vulnerability. This vulnerability allows remote attackers to create a denial-of-service condition on affected installations of Ollama. Authentication is not required to exploit this vuln…
-
High 7.7CVE-2026-42249 Public exploit
Remote Code Execution in Ollama via Update Mechanism
Ollama for Windows contains a Remote Code Execution vulnerability in its update mechanism due to improper handling of attacker‑controlled HTTP response headers. When downloading updates, the application constructs local file paths using values derived from HT…
-
High 7.7CVE-2026-42248 Public exploit
Missing Signature Verification for Updates in Ollama
Ollama for Windows does not perform integrity or authenticity verification of downloaded update executables. Unlike other platforms, the Windows implementation of the update verification routine unconditionally returns success so no digital signature or trust…
-
High 8.7
Ollama Multi-Modal Model Image Processing NULL Pointer Dereference
Ollama 0.11.5-rc0 through current version 0.13.5 contain a null pointer dereference vulnerability in the multi-modal model image processing functionality. When processing base64-encoded image data via the /api/chat endpoint, the application fails to validate …
-
High 7.5
Improper Validation of Array Index in ollama/ollama
A vulnerability in the Ollama server version 0.5.11 allows a malicious user to cause a Denial of Service (DoS) attack by customizing the manifest content and spoofing a service. This is due to improper validation of array index access when downloading a model…
-
High 7.5
Divide by Zero in ollama/ollama
A divide by zero vulnerability exists in ollama/ollama version v0.3.3. The vulnerability occurs when importing GGUF models with a crafted type for `block_count` in the Modelfile. This can lead to a denial of service (DoS) condition when the server processes t…
-
High 7.5
NULL Pointer Dereference in ollama/ollama
A vulnerability in ollama/ollama versions <=0.3.14 allows a malicious user to create a customized GGUF model file that, when uploaded and created on the Ollama server, can cause a crash due to an unchecked null pointer dereference. This can lead to a Denial o…
-
High 7.5CVE-2024-12886 Public exploit
Out-Of-Memory (OOM) Vulnerability in ollama/ollama
An Out-Of-Memory (OOM) vulnerability exists in the `ollama` server version 0.3.14. This vulnerability can be triggered when a malicious API server responds with a gzip bomb HTTP response, leading to the `ollama` server crashing. The vulnerability is present i…
-
High 7.5CVE-2025-0317 EPSS 15%
Divide By Zero in ollama/ollama
A vulnerability in ollama/ollama versions <=0.3.14 allows a malicious user to upload and create a customized GGUF model file on the Ollama server. This can lead to a division by zero error in the ggufPadding function, causing the server to crash and resulting…
-
High 7.5
Allocation of Resources Without Limits or Throttling in ollama/ollama
A vulnerability in ollama/ollama <=0.3.14 allows a malicious user to create a customized GGUF model file, upload it to the Ollama server, and create it. This can cause the server to allocate unlimited memory, leading to a Denial of Service (DoS) attack.
-
High 7.5
DoS using malicious gguf model file in ollama/ollama
A vulnerability in Ollama versions <=0.3.14 allows a malicious user to create a customized gguf model file that can be uploaded to the public Ollama server. When the server processes this malicious model, it crashes, leading to a Denial of Service (DoS) attac…