Unpatched flaws turn Ollama’s auto-updater into a persistent RCE vector, researchers say
Overview
Researchers from Striga have identified two vulnerabilities in Ollama’s Windows auto-updater, designated as CVE-2026-42248 and CVE-2026-42249. When exploited together, these flaws could enable an attacker to install a persistent executable that would run every time a user logs in. Ollama is an open-source tool used for running large language models locally, appealing to users concerned about data privacy and cost. This discovery raises significant security concerns, as it could allow unauthorized access to user systems, potentially compromising sensitive data. Users of Ollama should be particularly vigilant and consider the implications of these vulnerabilities on their security posture.
Key Takeaways
- Affected Systems: Ollama Windows auto-updater, versions not specified
- Action Required: Users should update Ollama to the latest version as soon as patches are available.
- Timeline: Newly disclosed
Original Article Summary
Researchers at Striga have disclosed two vulnerabilities (CVE-2026-42248, CVE-2026-42249) in Ollama’s Windows auto-updater that, when chained together, may allow an attacker to covertly plant a persistent executable that runs on every login. CVE-2026-42248 and CVE-2026-42249 Ollama is an open-source tool for running large language models locally. It’s is used by those who don’t want their data to leave their machine and don’t want to be constrained by API costs, usage limits, or the requirement of … More → The post Unpatched flaws turn Ollama’s auto-updater into a persistent RCE vector, researchers say appeared first on Help Net Security.
Impact
Ollama Windows auto-updater, versions not specified
Exploitation Status
No active exploitation has been reported at this time. However, organizations should still apply patches promptly as proof-of-concept code may exist.
Timeline
Newly disclosed
Remediation
Users should update Ollama to the latest version as soon as patches are available. Additionally, users should disable the auto-updater feature until a fix is released to mitigate the risk of exploitation.
Additional Information
This threat intelligence is aggregated from trusted cybersecurity sources. For the most up-to-date information, technical details, and official vendor guidance, please refer to the original article linked below.
Related Topics: This incident relates to Windows, CVE, Microsoft, and 1 more.