{"id":"CVE-2021-26272","details":"It was possible to execute a ReDoS-type attack inside CKEditor 4 before 4.16 by persuading a victim to paste crafted URL-like text into the editor, and then press Enter or Space (in the Autolink plugin).","aliases":["GHSA-wpvm-wqr4-p7cw"],"modified":"2026-08-27T11:47:42.147142047Z","published":"2021-01-26T21:15:12.923Z","database_specific":{"unresolved_ranges":[{"source":"CPE_RANGE","vendor_product":"oracle:application_express","cpes":["cpe:2.3:a:oracle:application_express:*:*:*:*:*:*:*:*"],"extracted_events":[{"fixed":"21.1.0"}]},{"source":"CPE_RANGE","vendor_product":"oracle:commerce_merchandising","cpes":["cpe:2.3:a:oracle:commerce_merchandising:*:*:*:*:*:*:*:*"],"extracted_events":[{"introduced":"11.3.0"},{"last_affected":"11.3.2"}]},{"cpes":["cpe:2.3:a:oracle:financial_services_analytical_applications_infrastructure:*:*:*:*:*:*:*:*"],"extracted_events":[{"introduced":"8.0.6"},{"last_affected":"8.0.9"}],"source":"CPE_RANGE","vendor_product":"oracle:financial_services_analytical_applications_infrastructure"},{"source":"CPE_RANGE","vendor_product":"oracle:financial_services_model_management_and_governance","cpes":["cpe:2.3:a:oracle:financial_services_model_management_and_governance:*:*:*:*:*:*:*:*"],"extracted_events":[{"introduced":"8.0.8.0.0"},{"last_affected":"8.1.0.0.0"}]},{"extracted_events":[{"fixed":"9.2.6.0"}],"source":"CPE_RANGE","vendor_product":"oracle:jd_edwards_enterpriseone_tools","cpes":["cpe:2.3:a:oracle:jd_edwards_enterpriseone_tools:*:*:*:*:*:*:*:*"]},{"cpes":["cpe:2.3:a:oracle:siebel_ui_framework:*:*:*:*:*:*:*:*"],"extracted_events":[{"last_affected":"21.9"}],"source":"CPE_RANGE","vendor_product":"oracle:siebel_ui_framework"},{"source":"CPE_STRING","vendor_product":"oracle:agile_product_lifecycle_management","cpes":["cpe:2.3:a:oracle:agile_product_lifecycle_management:9.3.5:*:*:*:*:*:*:*","cpe:2.3:a:oracle:agile_product_lifecycle_management:9.3.6:*:*:*:*:*:*:*"],"extracted_events":[{"introduced":"9.3.5"},{"last_affected":"9.3.5"},{"introduced":"9.3.6"},{"last_affected":"9.3.6"}]},{"source":"CPE_STRING","vendor_product":"oracle:banking_party_management","cpes":["cpe:2.3:a:oracle:banking_party_management:2.7.0:*:*:*:*:*:*:*"],"extracted_events":[{"introduced":"2.7.0"},{"last_affected":"2.7.0"}]},{"extracted_events":[{"introduced":"11.1.0"},{"last_affected":"11.1.0"},{"introduced":"11.2.0"},{"last_affected":"11.2.0"}],"source":"CPE_STRING","vendor_product":"oracle:commerce_merchandising","cpes":["cpe:2.3:a:oracle:commerce_merchandising:11.1.0:*:*:*:*:*:*:*","cpe:2.3:a:oracle:commerce_merchandising:11.2.0:*:*:*:*:*:*:*"]},{"extracted_events":[{"introduced":"8.1.0"},{"last_affected":"8.1.0"},{"introduced":"8.1.1"},{"last_affected":"8.1.1"}],"source":"CPE_STRING","vendor_product":"oracle:financial_services_analytical_applications_infrastructure","cpes":["cpe:2.3:a:oracle:financial_services_analytical_applications_infrastructure:8.1.0:*:*:*:*:*:*:*","cpe:2.3:a:oracle:financial_services_analytical_applications_infrastructure:8.1.1:*:*:*:*:*:*:*"]},{"cpes":["cpe:2.3:a:oracle:webcenter_sites:12.2.1.3.0:*:*:*:*:*:*:*","cpe:2.3:a:oracle:webcenter_sites:12.2.1.4.0:*:*:*:*:*:*:*"],"extracted_events":[{"introduced":"12.2.1.3.0"},{"last_affected":"12.2.1.3.0"},{"introduced":"12.2.1.4.0"},{"last_affected":"12.2.1.4.0"}],"source":"CPE_STRING","vendor_product":"oracle:webcenter_sites"}]},"references":[{"type":"ADVISORY","url":"https://ckeditor.com/blog/CKEditor-4.16-with-improved-image-pasting-High-Contrast-support-and-a-new-color-API/#security-comes-first"},{"type":"ADVISORY","url":"https://github.com/ckeditor/ckeditor4/blob/major/CHANGES.md#ckeditor-416"},{"type":"ADVISORY","url":"https://www.oracle.com/security-alerts/cpujan2022.html"},{"type":"FIX","url":"https://www.oracle.com//security-alerts/cpujul2021.html"},{"type":"FIX","url":"https://www.oracle.com/security-alerts/cpuoct2021.html"}],"affected":[{"ranges":[{"type":"GIT","repo":"https://github.com/ckeditor/ckeditor4","events":[{"introduced":"769d96134bcf29f5d3d870e25797ce9b9dc8289e"},{"fixed":"17a1555f7fbb0e83f737c9efe27650dca8dff36f"}],"database_specific":{"source":"CPE_RANGE","cpe":"cpe:2.3:a:ckeditor:ckeditor:*:*:*:*:*:*:*:*","extracted_events":[{"introduced":"4.0"},{"fixed":"4.16"}]}}],"versions":["4.15.0","4.14.0","4.13.0","4.12.0","4.10.0","4.8.0","4.7.0","4.6.0","4.5.0","4.5.0-beta","4.4.1","4.4.0","4.2.3","4.2.2","4.2.1","4.2.0","4.2","4.1.0","4.1","4.1rc","4.0.1","4.0.0","4.0"],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2021-26272.json"}},{"ranges":[{"type":"GIT","repo":"https://github.com/ckeditor/ckeditor4-releases","events":[{"introduced":"870a561110a23435d78eda377400dca7f64d3bd3"},{"fixed":"a393696ad5523e9f5ffab76e9b653240c49c770b"}],"database_specific":{"source":"CPE_RANGE","cpe":"cpe:2.3:a:ckeditor:ckeditor:*:*:*:*:*:*:*:*","extracted_events":[{"introduced":"4.0"},{"fixed":"4.16"}]}}],"versions":["standard/4.15.1","standard/4.15.0","standard/4.14.1","standard/4.14.0","standard/4.13.1","standard/4.13.0","standard/4.12.1","standard/4.12.0","standard/4.11.4","standard/4.11.3","standard/4.11.2","standard/4.11.1","standard/4.11.0","standard/4.10.1","standard/4.10.0","standard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