CVE-2026-3813

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The project was informed of the problem early through an issue report but has not responded yet."}, {"lang": "es", "value": "Se identific\u00f3 una vulnerabilidad en opencc JFlow hasta 5badc00db382d7cb82dad231e6a866b18e0addfe. Afectada por esta vulnerabilidad es la funci\u00f3n Calculate del archivo src/main/java/bp/wf/httphandler/WF_CCForm.java. Dicha manipulaci\u00f3n conduce a inyecci\u00f3n. El ataque puede ser realizado desde remoto. El exploit est\u00e1 disponible p\u00fablicamente y podr\u00eda ser utilizado. Este producto utiliza un sistema de lanzamiento continuo para entrega continua, y como tal, la informaci\u00f3n de la versi\u00f3n para las versiones afectadas o actualizadas no se divulga. El proyecto fue informado del problema tempranamente a trav\u00e9s de un informe de problema, pero a\u00fan no ha respondido."}], "id": "CVE-2026-3813", "lastModified": "2026-06-17T10:44:16.900", "metrics": {"cvssMetricV2": [{"acInsufInfo": false, "baseSeverity": "MEDIUM", "cvssData": {"accessComplexity": "LOW", "accessVector": "NETWORK", "authentication": "SINGLE", "availabilityImpact": "PARTIAL", "baseScore": 6.5, "confidentialityImpact": "PARTIAL", "integrityImpact": "PARTIAL", "vectorString": "AV:N/AC:L/Au:S/C:P/I:P/A:P", "version": "2.0"}, "exploitabilityScore": 8.0, "impactScore": 6.4, "obtainAllPrivilege": false, "obtainOtherPrivilege": false, "obtainUserPrivilege": false, "source": "cna@vuldb.com", "type": "Secondary", "userInteractionRequired": false}], "cvssMetricV31": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "LOW", "baseScore": 6.3, "baseSeverity": "MEDIUM", "confidentialityImpact": "LOW", "integrityImpact": "LOW", "privilegesRequired": "LOW", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L", "version": "3.1"}, "exploitabilityScore": 2.8, "impactScore": 3.4, "source": "cna@vuldb.com", "type": "Secondary"}, {"cvssData": {"attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "HIGH", "baseScore": 9.8, "baseSeverity": "CRITICAL", "confidentialityImpact": "HIGH", "integrityImpact": "HIGH", "privilegesRequired": "NONE", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H", "version": "3.1"}, "exploitabilityScore": 3.9, "impactScore": 5.9, "source": "nvd@nist.gov", "type": "Primary"}], "cvssMetricV40": [{"cvssData": {"Automatable": "NOT_DEFINED", "Recovery": "NOT_DEFINED", "Safety": "NOT_DEFINED", "attackComplexity": "LOW", "attackRequirements": "NONE", "attackVector": "NETWORK", "availabilityRequirement": "NOT_DEFINED", "baseScore": 2.1, "baseSeverity": "LOW", "confidentialityRequirement": "NOT_DEFINED", "exploitMaturity": "PROOF_OF_CONCEPT", "integrityRequirement": "NOT_DEFINED", "modifiedAttackComplexity": "NOT_DEFINED", "modifiedAttackRequirements": "NOT_DEFINED", "modifiedAttackVector": "NOT_DEFINED", "modifiedPrivilegesRequired": "NOT_DEFINED", "modifiedSubAvailabilityImpact": "NOT_DEFINED", "modifiedSubConfidentialityImpact": "NOT_DEFINED", "modifiedSubIntegrityImpact": "NOT_DEFINED", "modifiedUserInteraction": "NOT_DEFINED", "modifiedVulnAvailabilityImpact": "NOT_DEFINED", "modifiedVulnConfidentialityImpact": "NOT_DEFINED", "modifiedVulnIntegrityImpact": "NOT_DEFINED", "privilegesRequired": "LOW", "providerUrgency": "NOT_DEFINED", "subAvailabilityImpact": "NONE", "subConfidentialityImpact": "NONE", "subIntegrityImpact": "NONE", "userInteraction": "NONE", "valueDensity": "NOT_DEFINED", "vectorString": "CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:P/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", "version": "4.0", "vulnAvailabilityImpact": "LOW", "vulnConfidentialityImpact": "LOW", "vulnIntegrityImpact": "LOW", "vulnerabilityResponseEffort": "NOT_DEFINED"}, "source": "cna@vuldb.com", "type": "Secondary"}], "ssvcV203": [{"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "ssvcData": {"id": "CVE-2026-3813", "options": [{"exploitation": "poc"}, {"automatable": "no"}, {"technicalImpact": "partial"}], "role": "CISA Coordinator", "timestamp": "2026-03-10T16:01:26.877522Z", "version": "2.0.3"}}]}, "published": "2026-03-09T10:16:03.110", "references": [{"source": "cna@vuldb.com", "tags": ["Product"], "url": "https://gitee.com/opencc/JFlow/"}, {"source": "cna@vuldb.com", "tags": ["Exploit", "Issue Tracking", "Vendor Advisory"], "url": "https://gitee.com/opencc/JFlow/issues/IE8R2F"}, {"source": "cna@vuldb.com", "tags": ["Permissions Required", "VDB Entry"], "url": "https://vuldb.com/?ctiid.349779"}, {"source": "cna@vuldb.com", "tags": ["Third Party Advisory", "VDB Entry"], "url": "https://vuldb.com/?id.349779"}, {"source": "cna@vuldb.com", "tags": ["Third Party Advisory", "VDB Entry"], "url": "https://vuldb.com/?submit.769112"}], "sourceIdentifier": "cna@vuldb.com", "vulnStatus": "Analyzed", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-74"}, {"lang": "en", "value": "CWE-707"}], "source": "cna@vuldb.com", "type": "Secondary"}, {"description": [{"lang": "en", "value": "CWE-77"}], "source": "nvd@nist.gov", "type": "Primary"}]}

{}

{"affected": [{"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "5badc00db382d7cb82dad231e6a866b18e0addfe"}}], "enrichment": {"confidence": 100.0, "confidence_source": "matching", "scores": [{"score": 100.0, "source": "matching"}]}, "original": {"product": "JFlow", "source": "cna", "vendor": "opencc"}, "product": "jflow", "vendor": "opencc"}], "analysis": {"en": {"generated_at": "2026-04-17T11:53:30.170320+00:00", "value": {"mitigation_remediation": ["Verify the opencc JFlow repository for any updates that address the injection flaw and install the latest confirmed fix when available.", "Implement strict input validation and parameter sanitization for all data processed by the Calculate function to neutralize malicious payloads before execution.", "Restrict access to the WF_CCForm endpoint using network segmentation and role\u2011based access controls, and apply output encoding or escaping to mitigate injection risks."], "summary": {"action": "Apply Mitigation", "impact": "Command Injection"}, "threat_synthesis": {"affected_systems": "All publicly available releases of opencc JFlow up to the commit 5badc00db382d7cb82dad231e6a866b18e0addfe contain the affected Calculate function. Because the project follows a rolling release model, specific version numbers are not publicly disclosed; any instance running before the fix commit remains vulnerable.", "description_and_impact": "The vulnerability is located in the Calculate function of the WF_CCForm.java component in the opencc JFlow project. An attacker can manipulate input to this function, enabling arbitrary payload injection. The documented CWEs indicate that the flaw permits code injection and command injection, suggesting that injected content may be executed or processed by the system. The nature of the flaw means that malicious input could alter execution flow or inject harmful commands, potentially compromising application logic or data integrity.", "risk_and_exploitability": "The CVSS base score of 5.3 indicates moderate severity. The EPSS score of less than 1% reflects a low but non\u2011zero probability of exploitation. The vulnerability is not listed in the CISA KEV catalog. The stated attack vector is remote, and the exploit is publicly available, implying that exposure over web interfaces could be sufficient for an attacker to manipulate inputs. Without an official patch, the risk endures until a fixed release or mitigation is applied."}}}}, "created": "2026-03-10T14:07:36.437421+00:00", "updated": "2026-04-17T12:00:11.772428+00:00", "vendors": ["opencc", "opencc$PRODUCT$jflow"]}