CVE-2026-29190

{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-29190", "assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa", "state": "PUBLISHED", "assignerShortName": "GitHub_M", "dateReserved": "2026-03-04T14:44:00.714Z", "datePublished": "2026-03-07T15:16:15.148Z", "dateUpdated": "2026-03-09T18:27:12.083Z"}, "containers": {"cna": {"title": "Karapace: Path Traversal in Backup Reader", "problemTypes": [{"descriptions": [{"cweId": "CWE-22", "lang": "en", "description": "CWE-22: Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')", "type": "CWE"}]}], "metrics": [{"cvssV3_1": {"attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "NONE", "baseScore": 4.1, "baseSeverity": "MEDIUM", "confidentialityImpact": "LOW", "integrityImpact": "NONE", "privilegesRequired": "HIGH", "scope": "CHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:L/I:N/A:N", "version": "3.1"}}], "references": [{"name": "https://github.com/Aiven-Open/karapace/security/advisories/GHSA-rw4j-p3jg-4fxq", "tags": ["x_refsource_CONFIRM"], "url": "https://github.com/Aiven-Open/karapace/security/advisories/GHSA-rw4j-p3jg-4fxq"}, {"name": "https://github.com/Aiven-Open/karapace/releases/tag/6.0.0", "tags": ["x_refsource_MISC"], "url": "https://github.com/Aiven-Open/karapace/releases/tag/6.0.0"}], "affected": [{"vendor": "Aiven-Open", "product": "karapace", "versions": [{"version": "< 6.0.0", "status": "affected"}]}], "providerMetadata": {"orgId": "a0819718-46f1-4df5-94e2-005712e83aaa", "shortName": "GitHub_M", "dateUpdated": "2026-03-07T15:16:15.148Z"}, "descriptions": [{"lang": "en", "value": "Karapace is an open-source implementation of Kafka REST and Schema Registry. Prior to version 6.0.0, there is a Path Traversal vulnerability in the backup reader (backup/backends/v3/backend.py). If a malicious backup file is provided to Karapace, an attacker may exploit insufficient path validation to perform arbitrary file read on the system where Karapace is running. The issue affects deployments that use the backup/restore functionality and process backups from untrusted sources. The impact depends on the file system permissions of the Karapace process. This issue has been patched in version 6.0.0."}], "source": {"advisory": "GHSA-rw4j-p3jg-4fxq", "discovery": "UNKNOWN"}}, "adp": [{"metrics": [{"other": {"type": "ssvc", "content": {"timestamp": "2026-03-09T17:38:57.699216Z", "id": "CVE-2026-29190", "options": [{"Exploitation": "none"}, {"Automatable": "no"}, {"Technical Impact": "partial"}], "role": "CISA Coordinator", "version": "2.0.3"}}}], "title": "CISA ADP Vulnrichment", "providerMetadata": {"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP", "dateUpdated": "2026-03-09T18:27:12.083Z"}}]}}

{"dataType": "CVE_RECORD", "containers": {"adp": [{"title": "CISA ADP Vulnrichment", "metrics": [{"other": {"type": "ssvc", "content": {"id": "CVE-2026-29190", "role": "CISA Coordinator", "options": [{"Exploitation": "none"}, {"Automatable": "no"}, {"Technical Impact": "partial"}], "version": "2.0.3", "timestamp": "2026-03-09T17:38:57.699216Z"}}}], "providerMetadata": {"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP", "dateUpdated": "2026-03-09T17:38:58.746Z"}}], "cna": {"title": "Karapace: Path Traversal in Backup Reader", "source": {"advisory": "GHSA-rw4j-p3jg-4fxq", "discovery": "UNKNOWN"}, "metrics": [{"cvssV3_1": {"scope": "CHANGED", "version": "3.1", "baseScore": 4.1, "attackVector": "NETWORK", "baseSeverity": "MEDIUM", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:L/I:N/A:N", "integrityImpact": "NONE", "userInteraction": "NONE", "attackComplexity": "LOW", "availabilityImpact": "NONE", "privilegesRequired": "HIGH", "confidentialityImpact": "LOW"}}], "affected": [{"vendor": "Aiven-Open", "product": "karapace", "versions": [{"status": "affected", "version": "< 6.0.0"}]}], "references": [{"url": "https://github.com/Aiven-Open/karapace/security/advisories/GHSA-rw4j-p3jg-4fxq", "name": "https://github.com/Aiven-Open/karapace/security/advisories/GHSA-rw4j-p3jg-4fxq", "tags": ["x_refsource_CONFIRM"]}, {"url": "https://github.com/Aiven-Open/karapace/releases/tag/6.0.0", "name": "https://github.com/Aiven-Open/karapace/releases/tag/6.0.0", "tags": ["x_refsource_MISC"]}], "descriptions": [{"lang": "en", "value": "Karapace is an open-source implementation of Kafka REST and Schema Registry. Prior to version 6.0.0, there is a Path Traversal vulnerability in the backup reader (backup/backends/v3/backend.py). If a malicious backup file is provided to Karapace, an attacker may exploit insufficient path validation to perform arbitrary file read on the system where Karapace is running. The issue affects deployments that use the backup/restore functionality and process backups from untrusted sources. The impact depends on the file system permissions of the Karapace process. This issue has been patched in version 6.0.0."}], "problemTypes": [{"descriptions": [{"lang": "en", "type": "CWE", "cweId": "CWE-22", "description": "CWE-22: Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')"}]}], "providerMetadata": {"orgId": "a0819718-46f1-4df5-94e2-005712e83aaa", "shortName": "GitHub_M", "dateUpdated": "2026-03-07T15:16:15.148Z"}}}, "cveMetadata": {"cveId": "CVE-2026-29190", "state": "PUBLISHED", "dateUpdated": "2026-03-09T18:27:12.083Z", "dateReserved": "2026-03-04T14:44:00.714Z", "assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa", "datePublished": "2026-03-07T15:16:15.148Z", "assignerShortName": "GitHub_M"}, "dataVersion": "5.2"}

{"affected": [{"affectedData": [{"product": "karapace", "vendor": "Aiven-Open", "versions": [{"status": "affected", "version": "< 6.0.0"}]}], "source": "security-advisories@github.com"}], "configurations": [{"nodes": [{"cpeMatch": [{"criteria": "cpe:2.3:a:aiven:karapace:*:*:*:*:*:*:*:*", "matchCriteriaId": "A3BD4407-ABD5-46ED-A6D4-93144DC7AB44", "versionEndExcluding": "6.0.0", "vulnerable": true}], "negate": false, "operator": "OR"}]}], "cveTags": [], "descriptions": [{"lang": "en", "value": "Karapace is an open-source implementation of Kafka REST and Schema Registry. Prior to version 6.0.0, there is a Path Traversal vulnerability in the backup reader (backup/backends/v3/backend.py). If a malicious backup file is provided to Karapace, an attacker may exploit insufficient path validation to perform arbitrary file read on the system where Karapace is running. The issue affects deployments that use the backup/restore functionality and process backups from untrusted sources. The impact depends on the file system permissions of the Karapace process. This issue has been patched in version 6.0.0."}, {"lang": "es", "value": "Karapace es una implementaci\u00f3n de c\u00f3digo abierto de Kafka REST y Schema Registry. Antes de la versi\u00f3n 6.0.0, existe una vulnerabilidad de salto de ruta en el lector de copias de seguridad (backup/backends/v3/backend.py). Si se proporciona un archivo de copia de seguridad malicioso a Karapace, un atacante puede explotar una validaci\u00f3n de ruta insuficiente para realizar una lectura arbitraria de archivos en el sistema donde se ejecuta Karapace. El problema afecta a las implementaciones que utilizan la funcionalidad de copia de seguridad/restauraci\u00f3n y procesan copias de seguridad de fuentes no confiables. El impacto depende de los permisos del sistema de archivos del proceso de Karapace. Este problema ha sido parcheado en la versi\u00f3n 6.0.0."}], "id": "CVE-2026-29190", "lastModified": "2026-06-17T10:29:44.987", "metrics": {"cvssMetricV31": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "NONE", "baseScore": 4.1, "baseSeverity": "MEDIUM", "confidentialityImpact": "LOW", "integrityImpact": "NONE", "privilegesRequired": "HIGH", "scope": "CHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:L/I:N/A:N", "version": "3.1"}, "exploitabilityScore": 2.3, "impactScore": 1.4, "source": "security-advisories@github.com", "type": "Secondary"}, {"cvssData": {"attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "NONE", "baseScore": 5.3, "baseSeverity": "MEDIUM", "confidentialityImpact": "LOW", "integrityImpact": "NONE", "privilegesRequired": "NONE", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N", "version": "3.1"}, "exploitabilityScore": 3.9, "impactScore": 1.4, "source": "nvd@nist.gov", "type": "Primary"}], "ssvcV203": [{"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "ssvcData": {"id": "CVE-2026-29190", "options": [{"exploitation": "none"}, {"automatable": "no"}, {"technicalImpact": "partial"}], "role": "CISA Coordinator", "timestamp": "2026-03-09T17:38:57.699216Z", "version": "2.0.3"}}]}, "published": "2026-03-07T16:15:54.350", "references": [{"source": "security-advisories@github.com", "tags": ["Product", "Release Notes"], "url": "https://github.com/Aiven-Open/karapace/releases/tag/6.0.0"}, {"source": "security-advisories@github.com", "tags": ["Mitigation", "Vendor Advisory"], "url": "https://github.com/Aiven-Open/karapace/security/advisories/GHSA-rw4j-p3jg-4fxq"}], "sourceIdentifier": "security-advisories@github.com", "vulnStatus": "Analyzed", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-22"}], "source": "security-advisories@github.com", "type": "Secondary"}]}

{}

{"affected": [{"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "semver", "value": "[0,6.0.0)"}}], "enrichment": {"confidence": 85.0, "confidence_source": "matching", "scores": [{"score": 85.0, "source": "matching"}]}, "original": {"product": "karapace", "source": "cna", "vendor": "Aiven-Open"}, "product": "karapace", "vendor": "aiven"}], "analysis": {"en": {"generated_at": "2026-04-16T10:54:17.695079+00:00", "value": {"mitigation_remediation": ["Upgrade Karapace to version 6.0.0 or later.", "If an upgrade cannot be performed immediately, restrict access to the backup/restore endpoint to trusted administrators and enforce network segmentation to prevent external actors from uploading backups.", "Implement server\u2011side validation of backup filenames, ensuring all paths are confined to the designated backup directory and rejecting any containing '..' or absolute references."], "summary": {"action": "Immediate Patch", "impact": "Arbitrary File Read"}, "threat_synthesis": {"affected_systems": "The vulnerability affects all deployments of Aiven\u2011Open Karapace versions before 6.0.0 that use the backup/restore feature and are exposed to untrusted backup files. It is present in the file karapace/backup/backends/v3/backend.py. Users should verify the running version and plan an upgrade.", "description_and_impact": "Aven-Open Karapace is an open\u2011source implementation of Kafka REST and Schema Registry. In versions prior to 6.0.0, the backup reader component contains a path traversal flaw that allows a malicious backup file to be processed with insufficient path validation, enabling arbitrary files on the host where Karapace runs to be read. Depending on the file system permissions granted to the Karapace process, an attacker could access configuration files, secrets, or other sensitive data, resulting in information disclosure.", "risk_and_exploitability": "The CVSS score of 4.1 indicates moderate severity, and the EPSS score of less than 1% reflects a low likelihood of exploitation in the wild. The vulnerability is not listed in the CISA KEV catalog. Exploitation requires the ability to supply a crafted backup file to Karapace; if the backup endpoint is reachable over a network, the attack could be performed remotely. Karapace version 6.0.0 contains a fix that removes the path validation flaw."}}}}, "created": "2026-03-09T10:05:17.468632+00:00", "updated": "2026-04-16T11:00:10.650390+00:00", "vendors": ["aiven", "aiven$PRODUCT$karapace"]}