CVE-2026-7482: github.com/ollama/ollama · Ollama contains a heap out-of-bounds read vulnerability in the GGUF model loader
Affects github.com/ollama/ollamaSource GCVE Database
Not known to be exploited · CVSS 9.1 Critical : upgrade to 0.17.1 as a priority.
Data as of 27 Oct 2026, 00:07 UTC
- Patch
- Available – fixed in 0.17.1
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:HExploitation evidence
Disclosed: evidence found.
CVE published 4 May 2026
Detectable: no evidence on record.
No public nuclei template indexed
Weaponised: no evidence on record.
No public exploit code indexed in Metasploit or Exploit-DB
Exploited in the wildExploited: no evidence on record.
Not in CISA KEV and no source reports exploitation
Observed by OffSeq MirageSeen by Mirage: no evidence on record.
No attack traffic recorded by OffSeq Mirage sensors
A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 26 Oct 2026.
What to do
Upgrade github.com/ollama/ollama to 0.17.1.
Affected software
| Product | Affected | Fixed in |
|---|---|---|
| Gogithub.com/ollama/ollama | Affected
| Fixed in
|
Check your own hosts for these packages with threat-finder (opens in a new tab), our free open-source scanner.
Description
Ollama before 0.17.1 contains a heap out-of-bounds read vulnerability in the GGUF model loader. The /api/create endpoint accepts an attacker-supplied GGUF file in which the declared tensor offset and size exceed the file's actual length; during quantization in fs/ggml/gguf.go and server/quantization.go (WriteTo()), the server reads past the allocated heap buffer. The leaked memory contents may include environment variables, API keys, system prompts, and concurrent users' conversation data, and can be exfiltrated by uploading the resulting model artifact through the /api/push endpoint to an attacker-controlled registry. The /api/create and /api/push endpoints have no authentication in the upstream distribution. Default deployments bind to 127.0.0.1, but the documented OLLAMA_HOST=0.0.0.0 configuration is widely used in practice (large public-internet exposure observed).
References
- nvd.nist.gov/vuln/detail/CVE-2026-7482 (opens in a new tab)
- github.com/ollama/ollama/pull/14406 (opens in a new tab)
- github.com/ollama/ollama/commit/88d57d0483cca907e0b23a968c83627a20b21047 (opens in a new tab)
- github.com/ollama/ollama (opens in a new tab)
- github.com/ollama/ollama/releases/tag/v0.17.1 (opens in a new tab)