Nixpkgs security tracker

Untriaged

Permalink CVE-2026-65315

8.7 HIGH

CVSS version (CVSS): 4.0
Attack Vector (AV): Network (N)
Attack Complexity (AC): Low (L)
Attack Requirement (AT): None (N)
Privileges Required (PR): None (N)
User Interaction (UI): None (N)
Vulnerable System Impact Confidentiality (VC): None (N)
Vulnerable System Impact Integrity (VI): None (N)
Vulnerable System Impact Availability (VA): High (H)
Subsequent System Impact Confidentiality (SC): None (N)
Subsequent System Impact Integrity (SI): None (N)
Subsequent System Impact Availability (SA): None (N)
Modified Attack Vector (MAV): Network (N)
Modified Attack Complexity (MAC): Low (L)
Modified Attack Requirement (MAT): None (N)
Modified Privileges Required (MPR): None (N)
Modified User Interaction (MUI): None (N)
Modified Vulnerable System Impact Confidentiality (MVC): None (N)
Modified Vulnerable System Impact Integrity (MVI): None (N)
Modified Vulnerable System Impact Availability (MVA): High (H)
Modified Subsequent System Impact Confidentiality (MSC): Negligible (N)
Modified Subsequent System Impact Integrity (MSI): Negligible (N)
Modified Subsequent System Impact Availability (MSA): Negligible (N)
Safety (S): Not Defined (X)
Automatable (AU): Not Defined (X)
Recovery (R): Not Defined (X)
Value Density (V): Not Defined (X)
Vulnerability Response Effort (RE): Not Defined (X)
Provider Urgency (U): Not Defined (X)
Confidentiality Req. (CR): Not Defined (X)
Integrity Req. (IR): Not Defined (X)
Availability Req. (AR): Not Defined (X)
Exploit Maturity (E): Not Defined (X)

created 1 month, 1 week ago Activity log

Created suggestion 1 month, 1 week ago

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, tensor dimension counts, and metadata array counts that are used as allocation sizes without validation against remaining file size. Attackers can upload a sub-1KB crafted GGUF file via the blob upload and model create or pull API endpoints to trigger unrecoverable Go runtime out-of-memory fatal errors or makeslice panics that bypass recovery middleware and crash the entire server process.

References

GitHub Issue
Product patch
https://www.vulncheck.com/advisories/ollama-remote-denial-of-service-via-attack… third-party-advisory

Affected products

Ollama

=<f0078ae

Matching in nixpkgs

pkgs.ollama

Get up and running with large language models locally

nixos-unstable 0.30.7
- nixpkgs-unstable 0.31.1
- nixos-unstable-small 0.32.1
nixos-26.05 0.30.6
- nixos-26.05-small 0.30.6
- nixpkgs-26.05-darwin 0.30.6

pkgs.gollama

Go manage your Ollama models

nixos-unstable 2.0.4
- nixpkgs-unstable 2.0.5
- nixos-unstable-small 2.0.5
nixos-26.05 2.0.4
- nixos-26.05-small 2.0.4
- nixpkgs-26.05-darwin 2.0.4

pkgs.ollama-cpu

Get up and running with large language models locally

nixos-unstable 0.30.7
- nixpkgs-unstable 0.31.1
- nixos-unstable-small 0.32.1
nixos-26.05 0.30.6
- nixos-26.05-small 0.30.6
- nixpkgs-26.05-darwin 0.30.6

pkgs.ollama-cuda

Get up and running with large language models locally, using CUDA for NVIDIA GPU acceleration

nixos-unstable 0.30.7
- nixpkgs-unstable 0.31.1
- nixos-unstable-small 0.32.1
nixos-26.05 0.30.6
- nixos-26.05-small 0.30.6
- nixpkgs-26.05-darwin 0.30.6

pkgs.ollama-rocm

Get up and running with large language models locally, using ROCm for AMD GPU acceleration

nixos-unstable 0.30.7
- nixpkgs-unstable 0.31.1
- nixos-unstable-small 0.32.1
nixos-26.05 0.30.6
- nixos-26.05-small 0.30.6
- nixpkgs-26.05-darwin 0.30.6

pkgs.ollama-vulkan

Get up and running with large language models locally, using Vulkan for generic GPU acceleration

nixos-unstable 0.30.7
- nixpkgs-unstable 0.31.1
- nixos-unstable-small 0.32.1
nixos-26.05 0.30.6
- nixos-26.05-small 0.30.6
- nixpkgs-26.05-darwin 0.30.6

pkgs.pkgsRocm.ollama

Get up and running with large language models locally, using ROCm for AMD GPU acceleration

nixos-unstable 0.30.7
- nixpkgs-unstable 0.31.1
- nixos-unstable-small 0.32.1
nixos-26.05 0.30.6
- nixos-26.05-small 0.30.6
- nixpkgs-26.05-darwin 0.30.6

pkgs.nextjs-ollama-llm-ui

Simple chat web interface for Ollama LLMs

nixos-unstable 1.2.0
- nixpkgs-unstable 1.2.0
- nixos-unstable-small 1.2.0
nixos-26.05 1.2.0
- nixos-26.05-small 1.2.0
- nixpkgs-26.05-darwin 1.2.0

pkgs.python313Packages.ollama

Ollama Python library

nixos-unstable 0.6.2
- nixpkgs-unstable 0.6.2
- nixos-unstable-small 0.6.2
nixos-26.05 0.6.2
- nixos-26.05-small 0.6.2
- nixpkgs-26.05-darwin 0.6.2

pkgs.python314Packages.ollama

Ollama Python library

nixos-unstable 0.6.2
- nixpkgs-unstable 0.6.2
- nixos-unstable-small 0.6.2
nixos-26.05 0.6.2
- nixos-26.05-small 0.6.2
- nixpkgs-26.05-darwin 0.6.2

pkgs.python313Packages.llm-ollama

LLM plugin providing access to Ollama models using HTTP API

nixos-unstable 0.16.1
- nixpkgs-unstable 0.16.1
- nixos-unstable-small 0.16.1
nixos-26.05 0.16.0
- nixos-26.05-small 0.16.0
- nixpkgs-26.05-darwin 0.16.0

pkgs.python314Packages.llm-ollama

LLM plugin providing access to Ollama models using HTTP API

nixos-unstable 0.16.1
- nixpkgs-unstable 0.16.1
- nixos-unstable-small 0.16.1
nixos-26.05 0.16.0
- nixos-26.05-small 0.16.0
- nixpkgs-26.05-darwin 0.16.0

pkgs.haskellPackages.ollama-haskell

Haskell client for ollama

nixos-unstable 0.2.1.0
- nixpkgs-unstable 0.2.1.0
- nixos-unstable-small 0.2.1.0
nixos-26.05 0.2.1.0
- nixos-26.05-small 0.2.1.0
- nixpkgs-26.05-darwin 0.2.1.0