CVE-2026-73197

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A remote, unauthenticated attacker can exploit this vulnerability by sending oversized form POST requests to the `/ipa/migration/migration.py` endpoint. This can force the migration handler to read attacker-controlled request bodies fully into memory, leading to increased memory usage, slower request handling, and potential service disruption or denial of service."}], "affected": [{"vendor": "Red Hat", "product": "Red Hat Enterprise Linux 10", "collectionURL": "https://access.redhat.com/downloads/content/package-browser/", "packageName": "ipa", "defaultStatus": "affected", "versions": [{"version": "0:4.13.4-1.el10_2", "lessThan": "*", "versionType": "rpm", "status": "unaffected"}], "cpes": ["cpe:/o:redhat:enterprise_linux:10.2"]}, {"vendor": "Red Hat", "product": "Red Hat Enterprise Linux 10.0 Extended Update Support", "collectionURL": "https://access.redhat.com/downloads/content/package-browser/", "packageName": "ipa", "defaultStatus": "affected", "versions": [{"version": "0:4.12.2-15.el10_0.7", "lessThan": "*", "versionType": "rpm", "status": "unaffected"}], "cpes": ["cpe:/o:redhat:enterprise_linux_eus:10.0"]}, {"vendor": "Red Hat", 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"https://access.redhat.com/errata/RHSA-2026:93452", "name": "RHSA-2026:93452", "tags": ["vendor-advisory", "x_refsource_REDHAT"]}, {"url": "https://access.redhat.com/security/cve/CVE-2026-73197", "tags": ["vdb-entry", "x_refsource_REDHAT"]}, {"url": "https://bugzilla.redhat.com/show_bug.cgi?id=2474697", "name": "RHBZ#2474697", "tags": ["issue-tracking", "x_refsource_REDHAT"]}], "datePublic": "2026-08-20T10:05:49.171Z", "problemTypes": [{"descriptions": [{"cweId": "CWE-770", "description": "Allocation of Resources Without Limits or Throttling", "lang": "en", "type": "CWE"}]}], "x_redhatCweChain": "CWE-770: Allocation of Resources Without Limits or Throttling", "workarounds": [{"lang": "en", "value": "If the `/ipa/migration` endpoint is not required, it can be disabled by commenting out or removing the `Alias /ipa/migration` and its corresponding `<Directory>` block in the Apache configuration file (e.g., `/etc/httpd/conf.d/ipa.conf`).\n\nAlternatively, to limit the size of request bodies processed by the `/ipa/migration` endpoint, add the `LimitRequestBody` directive within the `<Directory \"/usr/share/ipa/migration\">` block in your Apache configuration, setting a conservative limit such as 1 MiB (1048576 bytes):\n\n```apache\n<Directory \"/usr/share/ipa/migration\">\n LimitRequestBody 1048576\n # ... other directives ...\n</Directory>\n```\n\nAfter modifying the Apache configuration, the `httpd` service must be reloaded or restarted for the changes to take effect. This may temporarily interrupt service."}], "timeline": [{"lang": "en", "time": "2026-05-11T20:27:44.000Z", "value": "Reported to Red Hat."}, {"lang": "en", "time": "2026-08-20T10:05:49.171Z", "value": "Made public."}], "credits": [{"lang": "en", "value": "Red Hat would like to thank AISLE Research for reporting this issue."}], "providerMetadata": {"orgId": "53f830b8-0a3f-465b-8143-3b8a9948e749", "shortName": "redhat", "dateUpdated": "2026-11-04T23:16:37.039Z"}, "x_generator": {"engine": "cvelib 1.8.0"}}, "adp": [{"metrics": [{"other": {"type": "ssvc", "content": {"timestamp": "2026-08-25T14:25:03.526898Z", "id": "CVE-2026-73197", "options": [{"Exploitation": "none"}, {"Automatable": "yes"}, {"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": "2026-08-25T14:25:16.305Z"}}]}}

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A remote, unauthenticated attacker can exploit this vulnerability by sending oversized form POST requests to the `/ipa/migration/migration.py` endpoint. This can force the migration handler to read attacker-controlled request bodies fully into memory, leading to increased memory usage, slower request handling, and potential service disruption or denial of service."}, {"lang": "es", "value": "Se encontr\u00f3 una falla en FreeIPA. Un atacante remoto no autenticado puede explotar esta vulnerabilidad enviando solicitudes POST de formulario sobredimensionadas al endpoint \u201c/ipa/migration/migration.py\u201d. Esto puede forzar al gestor de migraci\u00f3n a leer cuerpos de solicitud controlados por el atacante completamente en memoria, lo que lleva a un mayor uso de memoria, un manejo de solicitudes m\u00e1s lento y una posible interrupci\u00f3n del servicio o denegaci\u00f3n de servicio."}], "id": "CVE-2026-73197", "lastModified": "2026-11-05T00:17:25.790", "metrics": {"cvssMetricV31": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "HIGH", "baseScore": 7.5, "baseSeverity": "HIGH", "confidentialityImpact": "NONE", "integrityImpact": "NONE", "privilegesRequired": "NONE", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H", "version": "3.1"}, "exploitabilityScore": 3.9, "impactScore": 3.6, "source": "secalert@redhat.com", "type": "Secondary"}], "ssvcV203": [{"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "ssvcData": {"id": "CVE-2026-73197", "options": [{"exploitation": "none"}, {"automatable": "yes"}, {"technicalImpact": "partial"}], "role": "CISA Coordinator", "timestamp": "2026-08-25T14:25:03.526898Z", "version": "2.0.3"}}]}, "published": "2026-08-20T11:16:21.553", "references": [{"source": "secalert@redhat.com", "url": "https://access.redhat.com/errata/RHSA-2026:70564"}, {"source": "secalert@redhat.com", "url": "https://access.redhat.com/errata/RHSA-2026:72279"}, {"source": "secalert@redhat.com", "url": "https://access.redhat.com/errata/RHSA-2026:82935"}, {"source": "secalert@redhat.com", "url": "https://access.redhat.com/errata/RHSA-2026:83083"}, {"source": "secalert@redhat.com", "url": "https://access.redhat.com/errata/RHSA-2026:83084"}, {"source": "secalert@redhat.com", "url": "https://access.redhat.com/errata/RHSA-2026:83085"}, {"source": "secalert@redhat.com", "url": "https://access.redhat.com/errata/RHSA-2026:83460"}, {"source": "secalert@redhat.com", "url": "https://access.redhat.com/errata/RHSA-2026:83461"}, {"source": "secalert@redhat.com", "url": "https://access.redhat.com/errata/RHSA-2026:89836"}, {"source": "secalert@redhat.com", "url": "https://access.redhat.com/errata/RHSA-2026:93071"}, {"source": "secalert@redhat.com", "url": "https://access.redhat.com/errata/RHSA-2026:93452"}, {"source": "secalert@redhat.com", "tags": ["Vendor Advisory"], "url": "https://access.redhat.com/security/cve/CVE-2026-73197"}, {"source": "secalert@redhat.com", "tags": ["Issue Tracking", "Vendor Advisory"], "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2474697"}], "sourceIdentifier": "secalert@redhat.com", "vulnStatus": "Modified", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-770"}], "source": "secalert@redhat.com", "type": "Secondary"}]}

{"acknowledgement": "Red Hat would like to thank AISLE Research for reporting this issue.", "bugzilla": {"description": "ipa: FreeIPA: Unauthenticated DoS in `/ipa/migration/migration.py` via Unbounded Request Body Read", "id": "2474697", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2474697"}, "csaw": false, "cvss3": {"cvss3_base_score": "7.5", "cvss3_scoring_vector": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H", "status": "draft"}, "cwe": "CWE-770", "details": ["A flaw was found in FreeIPA. A remote, unauthenticated attacker can exploit this vulnerability by sending oversized form POST requests to the `/ipa/migration/migration.py` endpoint. This can force the migration handler to read attacker-controlled request bodies fully into memory, leading to increased memory usage, slower request handling, and potential service disruption or denial of service."], "mitigation": {"lang": "en:us", "value": "If the `/ipa/migration` endpoint is not required, it can be disabled by commenting out or removing the `Alias /ipa/migration` and its corresponding `<Directory>` block in the Apache configuration file (e.g., `/etc/httpd/conf.d/ipa.conf`).\nAlternatively, to limit the size of request bodies processed by the `/ipa/migration` endpoint, add the `LimitRequestBody` directive within the `<Directory \"/usr/share/ipa/migration\">` block in your Apache configuration, setting a conservative limit such as 1 MiB (1048576 bytes):\n```apache\n<Directory \"/usr/share/ipa/migration\">\nLimitRequestBody 1048576\n# ... other directives ...\n</Directory>\n```\nAfter modifying the Apache configuration, the `httpd` service must be reloaded or restarted for the changes to take effect. This may temporarily interrupt service."}, "name": "CVE-2026-73197", "package_state": [{"cpe": "cpe:/o:redhat:enterprise_linux:10", "fix_state": "Affected", "package_name": "ipa", "product_name": "Red Hat Enterprise Linux 10"}, {"cpe": "cpe:/o:redhat:enterprise_linux:6", "fix_state": "Out of support scope", "package_name": "ipa", "product_name": "Red Hat Enterprise Linux 6"}, {"cpe": "cpe:/o:redhat:enterprise_linux:7", "fix_state": "Affected", "package_name": "ipa", "product_name": "Red Hat Enterprise Linux 7"}, {"cpe": "cpe:/o:redhat:enterprise_linux:8", "fix_state": "Affected", "package_name": "ipa", "product_name": "Red Hat Enterprise Linux 8"}, {"cpe": "cpe:/o:redhat:enterprise_linux:9", "fix_state": "Affected", "package_name": "ipa", "product_name": "Red Hat Enterprise Linux 9"}], "public_date": "2026-08-20T10:05:49Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2026-73197\nhttps://nvd.nist.gov/vuln/detail/CVE-2026-73197"], "threat_severity": "Important"}

{"affected": [{"configurations": [{"platform": null, "status": "affected", "versions": null}], "enrichment": {"confidence": 100.0, "confidence_source": "manual", "scores": [{"score": 100.0, "source": "manual"}]}, "original": {"product": "Red Hat Enterprise Linux 10", "source": "cna", "vendor": "Red Hat"}, "product": "enterprise_linux", "vendor": "redhat"}], "created": "2026-08-20T23:00:07.018206+00:00", "updated": "2026-08-21T21:15:55.302140+00:00", "vendors": ["redhat", "redhat$PRODUCT$enterprise_linux"]}