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Vulnerability record · CVE-2026-5757 · published 26 June 2026

CVE-2026-5757: Ollama out-of-bounds read vulnerability

Ollama · Ollama

Unauthenticated remote information disclosure vulnerability in Ollama's model quantization engine allows an attacker to read and exfiltrate the server's heap memory, potentially leading to sensitive data exposure, further compromise, and stealthy persistence.

7.5 CVSS 3.1 High EPSS 0.74% · top 47.4% CWE-125 · Out-of-bounds read
7.5CVSS 3.1 base score
0.74%EPSS exploitation probability, 30 days
NoNot in CISA KEV
1Affected product versions listed by NVD
3References
29 Jun 2026Last modified by NVD

Description

Unauthenticated remote information disclosure vulnerability in Ollama's model quantization engine allows an attacker to read and exfiltrate the server's heap memory, potentially leading to sensitive data exposure, further compromise, and stealthy persistence.

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N

Affected products

1 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

References

LinkTags
https://kb.cert.org/vuls/id/518910 Third Party AdvisoryVDB Entry
https://ollama.com Product
https://www.kb.cert.org/vuls/id/518910 Third Party AdvisoryVDB Entry

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Related vulnerabilities

Same products first, then exploited flaws of the same weakness class.

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Source: NIST National Vulnerability Database (record CVE-2026-5757), CISA KEV, FIRST EPSS (scores of 2026-09-27). This page is refreshed as NVD updates the record.