Vulnerability Details CVE-2026-24686
go-tuf is a Go implementation of The Update Framework (TUF). go-tuf's TAP 4 Multirepo Client uses the map file repository name string (`repoName`) as a filesystem path component when selecting the local metadata cache directory. Starting in version 2.0.0 and prior to version 2.4.1, if an application accepts a map file from an untrusted source, an attacker can supply a `repoName` containing traversal (e.g., `../escaped-repo`) and cause go-tuf to create directories and write the root metadata file outside the intended `LocalMetadataDir` cache base, within the running process's filesystem permissions. Version 2.4.1 contains a patch.
Exploit prediction scoring system (EPSS) score
EPSS Score 0.0
EPSS Ranking 0.5%
CVSS Severity
CVSS v3 Score 4.7
References
Products affected by CVE-2026-24686
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cpe:2.3:a:theupdateframework:go-tuf:2.0.0
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cpe:2.3:a:theupdateframework:go-tuf:2.0.1
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cpe:2.3:a:theupdateframework:go-tuf:2.0.2
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cpe:2.3:a:theupdateframework:go-tuf:2.1.0
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cpe:2.3:a:theupdateframework:go-tuf:2.1.1
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cpe:2.3:a:theupdateframework:go-tuf:2.2.0
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cpe:2.3:a:theupdateframework:go-tuf:2.3.0
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cpe:2.3:a:theupdateframework:go-tuf:2.3.1
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cpe:2.3:a:theupdateframework:go-tuf:2.4.0