CVE-2025-10854: Symlink Following in txtai leads to arbitrary file write when loading untrusted embedding indices

Severity: high (CVSS 8.1 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.5% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2025-09-22 · updated 2026-06-17
Weakness: CWE-61

Description

The txtai framework allows the loading of compressed tar files as embedding indices. While the validate function is intended to prevent path traversal vulnerabilities by ensuring safe filenames, it does not account for symbolic links within the tar file. An attacker is able to write a file anywhere in the filesystem when txtai is used to load untrusted embedding indices

References

https://github.com/neuml/txtai/issues/965
https://research.jfrog.com/vulnerabilities/txtai-arbitrary-file-write-jfsa-2025-001471363/

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