CVE-2025-53358: kotaemon Vulnerable to Path Traversal via Link Upload

Severity: medium (CVSS 6.5 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: 2025-07-02 · updated 2026-06-17
Weakness: CWE-22

Description

kotaemon is an open-source RAG-based tool for document comprehension. From versions 0.10.6 and prior, in libs/ktem/ktem/index/file/ui.py, the index_fn method accepts both URLs and local file paths without validation. The pipeline streams these paths directly and stores them, enabling attackers to traverse directories (e.g. ../../../../../.env) and exfiltrate sensitive files. This issue has been patched via commit 37cdc28, in version 0.10.7 which has not been made public at time of publication.

Affected products

Cinnamon kotaemon: through 0.10.6

References

https://github.com/Cinnamon/kotaemon/commit/37cdc28ceb46e505d25221584daf1fe61e26b2cc
https://github.com/Cinnamon/kotaemon/pull/755
https://github.com/Cinnamon/kotaemon/security/advisories/GHSA-jw4w-xcvf-jq5x

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