{"id":"CVE-2021-29425","url":"https://www.cyber-defence.io/tools/cve/CVE-2021-29425","generatedAt":"2026-11-05T01:35:24.465Z","title":"In Apache Commons IO before 2.7, When invoking the method FileNameUtils.normalize with an improper input string, like \"//../foo\", or \"\\\\..\\foo\", the result would be the same value, thus possibly providing access to files in the parent directory, but not…","description":"In Apache Commons IO before 2.7, When invoking the method FileNameUtils.normalize with an improper input string, like \"//../foo\", or \"\\\\..\\foo\", the result would be the same value, thus possibly providing access to files in the parent directory, but not further above (thus \"limited\" path traversal), if the calling code would use the result to construct a path value.","published":"2021-04-13T07:15:12.000Z","lastModified":"2026-10-07T19:17:26.000Z","status":"Modified","sourceIdentifier":"security@apache.org","cvss":{"version":"3.1","score":4.8,"severity":"MEDIUM","vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:N"},"cwe":["CWE-20","CWE-22"],"affected":["apache/commons io","debian/debian linux","oracle/access manager","oracle/agile engineering data management","oracle/agile product lifecycle management","oracle/application performance management","oracle/application testing suite","oracle/banking apis","oracle/banking digital experience","oracle/banking enterprise default management","oracle/banking enterprise default managment","oracle/banking party management","oracle/banking platform","oracle/blockchain platform","oracle/commerce guided search","oracle/communications application session controller","oracle/communications billing and revenue management elastic charging engine","oracle/communications cloud native core network repository function","oracle/communications cloud native core policy","oracle/communications cloud native core unified data repository","oracle/communications contacts server","oracle/communications converged application server - service controller","oracle/communications convergence","oracle/communications design studio","oracle/communications diameter intelligence hub","oracle/communications interactive session recorder","oracle/communications offline mediation controller","oracle/communications order and service management","oracle/communications policy management","oracle/communications pricing design center","oracle/communications service broker","oracle/enterprise communications broker","oracle/enterprise session border controller","oracle/financial services analytical applications infrastructure","oracle/financial services model management and governance","oracle/flexcube core banking","oracle/fusion middleware mapviewer","oracle/health sciences data management workbench","oracle/health sciences information manager","oracle/healthcare data repository","oracle/helidon","oracle/insurance policy administration","oracle/insurance rules palette","oracle/oss support tools","oracle/primavera unifier","oracle/real user experience insight","oracle/rest data services","oracle/retail assortment planning","oracle/retail integration bus","oracle/retail merchandising system","oracle/retail order broker","oracle/retail pricing","oracle/retail service backbone","oracle/retail size profile optimization","oracle/retail xstore point of service","oracle/solaris cluster","oracle/utilities testing accelerator","oracle/webcenter portal","oracle/weblogic server","netapp/active iq unified manager"],"epss":{"score":0.10549,"percentile":0.95779,"date":"2026-11-03","history":[]},"kev":{"listed":false},"exploits":{"count":0,"verified":false,"firstPublished":null,"source":"Exploit-DB (https://gitlab.com/exploit-database/exploitdb)","entries":[]},"verdict":{"level":"urgent","text":"EPSS puts the probability of exploitation in the next 30 days at 10.5%, higher than 96% of all known CVEs. Patch or mitigate before the next change window."},"changes":[{"kind":"epss","label":"EPSS jump","at":"2026-10-08T00:00:00.000Z","detail":{"to":0.10549,"from":0.09905,"percentile":0.95667},"summary":"EPSS moved from 9.9% to 10.5% probability of exploitation in the next thirty days."}],"references":[{"url":"https://issues.apache.org/jira/browse/IO-556","tags":["Exploit","Issue Tracking","Vendor 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BY 4.0 — link back to the CVE Explorer if you publish the results; upstream data remains subject to its own terms."}