CVE-2024-39721Public exploitNetwork attack vector

Service interruption via blocking user-controlled file read

Published Oct 31, 2024 · Updated Nov 1, 2024

Denial of service in Ollama before 0.1.34 allows remote attackers to interrupt service through the unauthenticated Create Model API. CreateModelHandler passes the caller-controlled req.Path value to os.Open and parses the resulting stream to completion, so /dev/random never reaches end of file. Repeated requests leave goroutines consuming CPU after clients disconnect, eventually interrupting the service; no authentication or user interaction is required.

CVSS severity7.5
High
EPSS probability2.67%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
Coverage for this vulnerability

See if you're affected

Explore vulnerability checks for your environment with Hinoki.

Book a demo

Summary

What happened

Denial of service in Ollama before 0.1.34 allows remote attackers to interrupt service through the unauthenticated Create Model API. CreateModelHandler passes the caller-controlled req.Path value to os.Open and parses the resulting stream to completion, so /dev/random never reaches end of file. Repeated requests leave goroutines consuming CPU after clients disconnect, eventually interrupting the service; no authentication or user interaction is required.

The record

CVE
CVE-2024-39721
Published
Oct 31, 2024
Updated
Nov 1, 2024
Vendor
Ollama
Product
Ollama
Classifications
CWE-404, T1499
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Oct 31, 2024CVE publishedPublication date reported by the CVE source.
  2. Nov 1, 2024Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

Compare your product and version with the public record. A matching version still requires validation against your environment.

Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=0 <0.1.34

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Ollama · Ollamaversion=0 <0.1.34

Published CVSS scores

7.5CISA ADP VulnrichmentCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 9, 2026Sep 15, 2026
Latest reporting daySep 15, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-404Improper Resource Shutdown or Release
T1499Endpoint Denial of Service

Public exploit references

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

See the directory against your own environment.

Your stack

Check the software in your environment

Book a demo to see how Hinoki identifies affected software and validates exploitability in your environment.

Book a demo