GHSA-wrh5-cmwx-q2qr

ghsaUSosv

Ollama Server Vulnerable to Denial of Service (DoS) Attack

view advisory published 2025-05-16Licence: CC-BY-4.0

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 via the /api/pull endpoint, which can lead to a server crash.

describes (1)

Related CVEs.

ID	severity	EPSS	exploitable	published
CVE-2025-1975US	—	0.52% (44th)	—	2025-05-16
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. Th…

references

External citations — patches, advisories, analysis.

https://github.com/ollama/ollamaPACKAGE
https://github.com/pypa/advisory-database/tree/main/vulns/ollama/PYSEC-2025-145.yamlWEB
https://huntr.com/bounties/921ba5d4-f1d0-4c66-9764-4f72dffe7acdWEB
https://nvd.nist.gov/vuln/detail/CVE-2025-1975ADVISORY
https://pkg.go.dev/vuln/GO-2025-3695WEB

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