CVE-2026-65315— Ollama Remote Denial of Service via Attacker-Controlled Allocation in GGUF Metadata Parser
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I. Basic Information for CVE-2026-65315
Vulnerability Information
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Vulnerability Title
Ollama Remote Denial of Service via Attacker-Controlled Allocation in GGUF Metadata Parser
Source: CVE Program / CVE List V5
Vulnerability Description
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.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Source: CVE Program / CVE List V5
Vulnerability Type
未经控制的内存分配
Source: CVE Program / CVE List V5
Vulnerability Title
Ollama 资源管理错误漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Ollama是Ollama公司开源的一个可以在本地设备上运行、管理和自定义大语言模型的工具。 Ollama f0078ae之前版本存在资源管理错误漏洞，该漏洞源于GGUF元数据解析器中存在不受控制的内存分配问题，导致远程攻击者通过上传特制的GGUF文件，其中使用攻击者控制的长度和计数字段（如字符串长度、张量维度计数和元数据数组计数）作为分配大小且未经验证，可引发Go运行时内存耗尽致命错误或makeslice恐慌，绕过恢复中间件并使整个服务器进程崩溃。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)
Affected Products
II. Public POCs for CVE-2026-65315
| # | POC Description | Source Link | Shenlong Link |
|---|
AI-Generated POCPremium
Qwen3.6-35B-A3B · 7563 chars
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III. Intelligence Information for CVE-2026-65315
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Vendor Advisories for CVE-2026-65315 (1)
Proof of Concept for CVE-2026-65315 (1)
IV. Related Vulnerabilities
Same product: Ollama
- CVE-2026-15685
Ollama downloadBlob Improper Validation of Array Index Denia - CVE-2026-5757
There exists an unauthenticated remote information disclosur - CVE-2026-7482
Ollama heap out-of-bounds read in GGUF tensor parsing leaks - CVE-2026-42249
Remote Code Execution in Ollama via Update Mechanism - CVE-2026-42248
Missing Signature Verification for Updates in Ollama
Same vendor: Ollama
- CVE-2026-15685
Ollama downloadBlob Improper Validation of Array Index Denia - CVE-2026-7482
Ollama heap out-of-bounds read in GGUF tensor parsing leaks - CVE-2026-42249
Remote Code Execution in Ollama via Update Mechanism - CVE-2026-42248
Missing Signature Verification for Updates in Ollama - CVE-2025-15514
Ollama Multi-Modal Model Image Processing NULL Pointer Deref
Same weakness: CWE-789
- CVE-2026-59844
Libssh: libssh: denial of service via oversized sftp read le - CVE-2025-71395
SurrealDB before 2.2.2 Memory Exhaustion via string::replace - CVE-2026-44453
h2o is vulnerable to musl libc stack overflow - CVE-2026-58559
Huawei harmonyos 资源管理错误漏洞 - CVE-2026-40378
Windows Local Security Authority Subsystem Service (LSASS) D
V. Comments for CVE-2026-65315
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