TI-2026-28296 Aliases CVE-2026-39306 GHSA-4rx4-4r3x-6534

PraisonAI recipe registry pull path traversal writes files outside the chosen output directory

HIGH 65CWE-22Published 2026-04-07 · Updated 2026-04-07

Key facts

Attack vector: Network
Privileges required: Low
User interaction: Required
Attack complexity: Low
Impact type: —
Confidentiality · integrity · availability: None · High · High
Fix status: Fixed

Attack profile from CVSS 3.1 · CNA. Fix status from CNA and GitHub.

Summary

PraisonAI is a multi-agent teams system. Prior to 1.5.113, PraisonAI's recipe registry pull flow extracts attacker-controlled .praison tar archives with tar.extractall() and does not validate archive member paths before extraction. A malicious publisher can upload a recipe bundle that contains ../ traversal entries and any user who later pulls that recipe will write files outside the output directory they selected. This is a path traversal / arbitrary file write vulnerability on the client side of the recipe registry workflow. It affects both the local registry pull path and the HTTP registry pull path. The checksum verification does not prevent exploitation because the malicious traversal payload is part of the signed bundle itself. This vulnerability is fixed in 1.5.113.

Why it matters now

Exploitation Proof of concept CISA SSVC · not in CISA KEV

EPSS 0.00302 23rd percentileScored 2026-11-07

Public exploit Yes 1 exploit referenceTagged by NVD

Fix Fixed PraisonAI (MervinPraison): 4.5.113PraisonAI (PyPI): 4.5.113

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation: Poc
Automatable: No
Technical impact: Partial

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

Vendor	Product	Affected versions	Fixed in	Status	Source
MervinPraison	PraisonAI	before 4.5.113	4.5.113	Patch available	CNA
—	PraisonAI (PyPI)	before 4.5.113	4.5.113	Patch available	GHSA-4rx4-4r3x-6534

PraisonAI VendorMervinPraison Affected before 4.5.113 Fixed in 4.5.113 Patch available CNA
PraisonAI (PyPI) Vendor— Affected before 4.5.113 Fixed in 4.5.113 Patch available GHSA-4rx4-4r3x-6534

CPE configurations NVD · 1

CPE	Versions	Role	Vendor
cpe:2.3:a:praison:praisonai::::::::	up to 4.5.112	Vulnerable	MervinPraison

cpe:2.3:a:praison:praisonai:*:*:*:*:*:*:*:* Versions up to 4.5.112 Vulnerable ·MervinPraison

Remediation

Fix · CNA PraisonAI (MervinPraison) Fixed in 4.5.113
Fix · GHSA-4rx4-4r3x-6534 PraisonAI (PyPI) Fixed in 4.5.113 Advisory →

Timeline

2026-10-02 Threatist record created from CVE-2026-39306
2026-10-03 Alias added: GHSA-4rx4-4r3x-6534

References

Exploit 1

https://github.com/MervinPraison/PraisonAI/security/advisories/GHSA-4rx4-4r3x-6534

Advisory 1

https://nvd.nist.gov/vuln/detail/CVE-2026-39306

Other 2

TI-2026-30083 Incomplete fix for CVE-2026-34935: Command Injection in MervinPraison/PraisonAI CVSS 3.1CRITICAL 9.8
TI-2026-29070 PraisonAI: Critical RCE via `type: job` workflow YAML CVSS 3.1CRITICAL 9.8
TI-2026-28940 PraisonAI has Server-Side Request Forgery via Unvalidated webhook_url in Jobs API CVSS 3.1CRITICAL 10.0
TI-2026-28768 PraisonAI Affected by Remote Code Execution via YAML Deserialization in Agent Definition Loading CVSS 3.1CRITICAL 9.8
TI-2026-27159 PraisonAI: OS Command Injection in MCPHandler.parse_mcp_command() CVSS 3.1CRITICAL 9.8
TI-2026-27158 PraisonAI: Second-Order SQL Injection in `get_all_user_threads` CVSS 3.1CRITICAL 9.8

See all 42 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences