{"id":"CVE-2023-42457","summary":"plone.rest vulnerable to Denial of Service when ++api++ is used many times","details":"plone.rest allows users to use HTTP verbs such as GET, POST, PUT, DELETE, etc. in Plone. Starting in the 2.x branch and prior to versions 2.0.1 and 3.0.1, when the `++api++` traverser is accidentally used multiple times in a url, handling it takes increasingly longer, making the server less responsive. Patches are available in `plone.rest` 2.0.1 and 3.0.1.  Series 1.x is not affected. As a workaround, one may redirect `/++api++/++api++` to `/++api++` in one's frontend web server (nginx, Apache).","aliases":["GHSA-h6rp-mprm-xgcq","PYSEC-2023-178"],"modified":"2026-08-12T03:51:35.850864945Z","published":"2023-09-21T14:49:32.123Z","database_specific":{"cna_assigner":"GitHub_M","cwe_ids":["CWE-400","CWE-770"],"osv_generated_from":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2023/42xxx/CVE-2023-42457.json"},"references":[{"type":"WEB","url":"http://www.openwall.com/lists/oss-security/2023/09/22/2"},{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2023/42xxx/CVE-2023-42457.json"},{"type":"ADVISORY","url":"https://github.com/plone/plone.rest/security/advisories/GHSA-h6rp-mprm-xgcq"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2023-42457"},{"type":"FIX","url":"https://github.com/plone/plone.rest/commit/43b4a7e86206e237e1de5ca3817ed071575882f7"},{"type":"FIX","url":"https://github.com/plone/plone.rest/commit/77846a9842889b24f35e8bedc2e9d461388d3302"}],"affected":[{"ranges":[{"type":"GIT","repo":"https://github.com/plone/plone.rest","events":[{"introduced":"3dd6627e76e4a115448c3edf37a7ae257740ea64"},{"fixed":"2a3f97468ba798e7a0e6aa4156578939e0fc4734"},{"introduced":"dc7dd0003d39adcd0ca15a592e7e14a7c4af216f"},{"last_affected":"dc7dd0003d39adcd0ca15a592e7e14a7c4af216f"}],"database_specific":{"extracted_events":[{"introduced":"2.0.0a1"},{"fixed":"2.0.1"},{"introduced":"= 3.0.0"},{"last_affected":"= 3.0.0"}],"source":"AFFECTED_FIELD"}}],"versions":["2.0.0","3.0.0","= 3.0.0","2.0.0a5","2.0.0a4","2.0.0a3","2.0.0a2","2.0.0a1"],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2023-42457.json"}}],"schema_version":"1.9.0","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H"}]}