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CVE-2026-39822 is a symbolic-link resolution vulnerability in Go's os.Root file-opening functionality on Unix systems. When the final path component is a symbolic link and the supplied path ends with a slash, an affected operation can follow the link to a location outside the configured root. This bypasses the filesystem containment intended by os.Root and can expose resources outside the application's permitted directory tree. Exact affected upstream Go version ranges are currently unavailable.
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No public exploit code observed for this vulnerability.
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142 sources tracked across advisories, community write-ups, and news. New activity surfaces here as Mallory finds it.
A symbolic-link handling vulnerability in Go's os.Root allows file operations to escape the intended root directory on Unix systems when a path ends with a symbolic link followed by '/'. The advisory lists a CVSS v3 base score of 7.8, with local access and low privileges required, and potential high impacts to confidentiality, integrity, and availability.
A symlink-handling vulnerability in Go's os.Root on Unix systems allows file-opening operations to follow a final-component symbolic link outside the designated root when the supplied path ends with a slash. The advisory assigns a CVSS v3 base score of 7.8 (High) and recommends updating dev-lang/go and related packages to version 19216.700.23 or later. It explicitly states that no known exploits are available.
A vulnerability in Go's os.Root file handling on Unix allows a trailing-slash path whose final component is a symbolic link to resolve outside the intended root directory. The advisory assigns a CVSS v3 base score of 7.8 and recommends updating the Google COS dev-lang/go package to version 19999.44.28 or later.
A filesystem confinement bypass in os.Root allows file-opening operations with a trailing slash to follow a final symbolic link outside the designated root. The advisory identifies amazon-ecr-credential-helper versions before 0.12.0-4 on Amazon Linux 2 as affected. The plugin cites a CVSS v3 base score of 7.8 for this vulnerability.
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Cross-references every affected SKU, including bundled OEM variants.
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