CVE-2026-44933

# PoC Concept for CVE-2026-44933 # Demonstrating the no-op chroot issue import os def simulate_vulnerable_path(repo_root, payload): print(f"[+] Setting repoManagerRoot to: {repo_root}") # Vulnerable logic simulation if repo_root == "/": print("[!] chroot target is '/', this is a no-op. Isolation FAILED.") current_root = "/" else: print("[*] Applying chroot isolation...") current_root = repo_root # Simulating path resolution # In the vulnerable case (current_root=/), ../../bin/bash resolves to /bin/bash if current_root == "/": resolved_path = payload.replace("../", "") # Simplified resolution print(f"[+] Executing payload from host: {resolved_path}") # In a real exploit: os.execv(resolved_path, ['bash']) else: print("[-] Blocked by chroot.") # Exploit Scenario simulate_vulnerable_path("/", "../../../bin/bash")

{"cve": {"id": "CVE-2026-44933", "sourceIdentifier": "[email protected]", "published": "2026-05-20T10:16:28.453", "lastModified": "2026-05-20T14:01:24.027", "vulnStatus": "Deferred", "cveTags": [], "descriptions": [{"lang": "en", "value": "`PluginScript` attempts to `chroot` the plugin to the `repoManagerRoot`, this root is frequently `/` (the system root) in standard configurations or when using `--root`. If the chroot target is `/`, it is a no-op, allowing the traversed path to execute host binaries (like `/bin/bash`) with root privileges."}], "metrics": {"cvssMetricV40": [{"source": "[email protected]", "type": "Secondary", "cvssData": {"version": "4.0", "vectorString": "CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:P/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X", "baseScore": 8.5, "baseSeverity": "HIGH", "attackVector": "LOCAL", "attackComplexity": "LOW", "attackRequirements": "NONE", "privilegesRequired": "NONE", "userInteraction": "PASSIVE", "vulnConfidentialityImpact": "HIGH", "vulnIntegrityImpact": "HIGH", "vulnAvailabilityImpact": "HIGH", "subConfidentialityImpact": "NONE", "subIntegrityImpact": "NONE", "subAvailabilityImpact": "NONE", "exploitMaturity": "NOT_DEFINED", "confidentialityRequirement": "NOT_DEFINED", "integrityRequirement": "NOT_DEFINED", "availabilityRequirement": "NOT_DEFINED", "modifiedAttackVector": "NOT_DEFINED", "modifiedAttackComplexity": "NOT_DEFINED", "modifiedAttackRequirements": "NOT_DEFINED", "modifiedPrivilegesRequired": "NOT_DEFINED", "modifiedUserInteraction": "NOT_DEFINED", "modifiedVulnConfidentialityImpact": "NOT_DEFINED", "modifiedVulnIntegrityImpact": "NOT_DEFINED", "modifiedVulnAvailabilityImpact": "NOT_DEFINED", "modifiedSubConfidentialityImpact": "NOT_DEFINED", "modifiedSubIntegrityImpact": "NOT_DEFINED", "modifiedSubAvailabilityImpact": "NOT_DEFINED", "Safety": "NOT_DEFINED", "Automatable": "NOT_DEFINED", "Recovery": "NOT_DEFINED", "valueDensity": "NOT_DEFINED", "vulnerabilityResponseEffort": "NOT_DEFINED", "providerUrgency": "NOT_DEFINED"}}], "cvssMetricV31": [{"source": "[email protected]", "type": "Secondary", "cvssData": {"version": "3.1", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H", "baseScore": 7.8, "baseSeverity": "HIGH", "attackVector": "LOCAL", "attackComplexity": "LOW", "privilegesRequired": "NONE", "userInteraction": "REQUIRED", "scope": "UNCHANGED", "confidentialityImpact": "HIGH", "integrityImpact": "HIGH", "availabilityImpact": "HIGH"}, "exploitabilityScore": 1.8, "impactScore": 5.9}]}, "weaknesses": [{"source": "[email protected]", "type": "Primary", "description": [{"lang": "en", "value": "CWE-35"}]}], "references": [{"url": "https://bugzilla.suse.com/show_bug.cgi?id=CVE-2026-44933", "source": "[email protected]"}]}}