Path Traversal in Mervinpraison Praisonai
CVE-2026-44340
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.
Vulnerability class: Path Traversal (Directory Traversal)
Published · last modified .
CVSS v3 metric
CVSS v3 base score 7.5 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N.
EPSS exploit prediction
EPSS: 0.005 (37.2th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 37th percentile — 37.2% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.004 · newest: 0.005 · change: +0.000
Affected products
- Mervinpraison Praisonai — versions < 4.6.37
- Praison Praisonai
Weakness classification (CWE)
References
- github.com/MervinPraison/PraisonAI/security/advisories/GHSA-9q28-ghcr-c4x3 (Exploit, Mitigation, Vendor Advisory)
Frequently asked questions
- What is CVE-2026-44340?
- CVE-2026-44340 is a high-severity vulnerability in Mervinpraison Praisonai, classified under Path Traversal. CVSS score: 7.5/10. Published 2026-05-08.
- How severe is CVE-2026-44340?
- High severity. CVSS v3 base score is 7.5 out of 10.