CVE-2026-44340

HIGH

PraisonAI: Symlink-extraction bypass of `_safe_extractall` writes outside `dest_dir`

Title source: cna
STIX 2.1

Description

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.

References (1)

Core 1
Core References

Scores

CVSS v3 7.5
EPSS 0.0002
EPSS Percentile 6.7%
Attack Vector NETWORK
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N

CISA SSVC

Vulnrichment
Exploitation none
Automatable yes
Technical Impact partial

Details

CWE
CWE-22 CWE-59
Status published
Products (3)
MervinPraison/PraisonAI < 4.6.37
praison/praisonai < 4.6.37
pypi/PraisonAI 0 - 4.6.37PyPI
Published May 08, 2026
Tracked Since May 08, 2026