CVE-2026-5757
CVE-2026-5757 is a high-severity vulnerability in Ollama with a CVSS 3.x base score of 7.5. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-125.
Key facts
- Severity: High (CVSS 3.x base score 7.5)
- EPSS exploit prediction: 1% (42nd percentile)
- Actively exploited: Not listed in CISA KEV
- Weakness: CWE-125
- Affected product: Ollama
- Published:
- Last modified:
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.
Frequently asked questions
- What is CVE-2026-5757?
- 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.
- How severe is CVE-2026-5757?
- CVE-2026-5757 has a CVSS 3.x base score of 7.5, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity none, and availability none.
- Is CVE-2026-5757 being actively exploited?
- It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (42nd percentile), an estimate of the probability of exploitation in the next 30 days.
- What products are affected by CVE-2026-5757?
- CVE-2026-5757 affects Ollama. See the affected-products list for the exact vulnerable versions.
- How do I fix CVE-2026-5757?
- Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
- When was CVE-2026-5757 published?
- CVE-2026-5757 was published on 2026-06-26 and last updated on 2026-06-29.
References
Affected products (1)
- cpe:2.3:a:ollama:ollama:*:*:*:*:*:*:*:*
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