CVE-2026-15685

See a problem?
Please try reporting it to the source first.
Source
https://cve.org/CVERecord?id=CVE-2026-15685
Import Source
https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-15685.json
JSON Data
https://api.osv.dev/v1/vulns/CVE-2026-15685
Aliases
Downstream
Published
2026-07-13T21:30:09.180Z
Modified
2026-07-16T03:48:17.152588286Z
Severity
  • 7.5 (High) CVSS_V3 - CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H CVSS Calculator
Summary
Ollama downloadBlob Improper Validation of Array Index Denial-of-Service Vulnerability
Details

Ollama downloadBlob Improper Validation of Array Index Denial-of-Service Vulnerability. This vulnerability allows remote attackers to create a denial-of-service condition on affected installations of Ollama. Authentication is not required to exploit this vulnerability.

The specific flaw exists within the downloadBlob function. The issue results from the lack of proper validation of user-supplied data, which can result in a memory access past the end of an allocated array. An attacker can leverage this vulnerability to create a denial-of-service condition on the system. Was ZDI-CAN-27277.

Database specific 
{
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/15xxx/CVE-2026-15685.json",
    "cwe_ids": [
        "CWE-129"
    ],
    "unresolved_ranges": [
        {
            "extracted_events": [
                {
                    "introduced": "0.7.1"
                },
                {
                    "last_affected": "0.7.1"
                }
            ],
            "source": "AFFECTED_FIELD"
        }
    ],
    "cna_assigner": "zdi"
}
References

Affected packages

Git / github.com/ollama/ollama

Affected ranges

Type
GIT
Repo
https://github.com/ollama/ollama
Events
Introduced
884d26093c80491a3fe07f606fc04851dc317199
Last affected
884d26093c80491a3fe07f606fc04851dc317199
Database specific 
{
    "extracted_events": [
        {
            "introduced": "0.7.1-NA"
        },
        {
            "last_affected": "0.7.1-NA"
        }
    ],
    "source": "CPE_STRING",
    "cpe": "cpe:2.3:a:ollama:ollama:0.7.1:-:*:*:*:*:*:*"
}

Affected versions

0.*
0.7.1-NA
v0.*
v0.7.1
v0.7.1-rc2

Database specific

source 
"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-15685.json"