Winsage
May 5, 2026
Researchers at Striga have identified two vulnerabilities (CVE-2026-42248 and CVE-2026-42249) in Ollama’s Windows auto-updater that could allow an attacker to install a persistent executable that runs at user login. CVE-2026-42248 fails to properly verify signatures of downloaded content, while CVE-2026-42249 is a path traversal flaw that allows an attacker to inject malicious code into the user's Startup folder. Exploitation requires control over the update response, with potential methods including compromising the update infrastructure or redirecting the client. The vulnerabilities affect Ollama versions 0.12.10 through 0.17.5, and users are advised to disable auto-updates and remove shortcuts from the Startup folder to mitigate risks.