CVE-2026-44340 (GCVE-0-2026-44340)

Vulnerability from cvelistv5 – Published: 2026-05-08 13:38 – Updated: 2026-05-08 23:22
VLAI?
Title
PraisonAI: Symlink-extraction bypass of `_safe_extractall` writes outside `dest_dir`
Summary
PraisonAI is a multi-agent teams system. Prior to version 4.6.37, the _safe_extractall helper that all recipe pull, recipe publish, and recipe unpack flows route through validates each archive member's name for absolute paths, .. segments, and resolved-path escape — but does not validate member.linkname, does not reject symlink/hardlink members, and calls tar.extractall(dest_dir) without filter="data". A bundle that contains a symlink with a name inside dest_dir but a linkname pointing outside it, followed by a regular file whose path traverses through the just-created symlink, escapes dest_dir and lets the attacker write arbitrary content to an attacker-chosen location on the victim's filesystem. This issue has been patched in version 4.6.37.
CWE
  • CWE-22 - Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')
  • CWE-59 - Improper Link Resolution Before File Access ('Link Following')
Assigner
References
Impacted products
Vendor Product Version
MervinPraison PraisonAI Affected: < 4.6.37
Create a notification for this product.
Show details on NVD website

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