{"id":"CVE-2021-29061","url":"https://www.cyber-defence.io/tools/cve/CVE-2021-29061","generatedAt":"2026-10-27T20:21:52.955Z","title":"A Regular Expression Denial of Service (ReDOS) vulnerability was discovered in Vfsjfilechooser2 version 0.2.9 and below which occurs when the application attempts to validate crafted URIs.","description":"A Regular Expression Denial of Service (ReDOS) vulnerability was discovered in Vfsjfilechooser2 version 0.2.9 and below which occurs when the application attempts to validate crafted URIs.","published":"2021-06-21T20:15:09.000Z","lastModified":"2026-06-17T03:47:13.000Z","status":"Modified","sourceIdentifier":"cve@mitre.org","cvss":{"version":"3.1","score":7.5,"severity":"HIGH","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H"},"cwe":["CWE-770"],"affected":["vfsjfilechooser2 project/vfsjfilechooser2"],"epss":{"score":0.02315,"percentile":0.83295,"date":"2026-10-26","history":[]},"kev":{"listed":false},"exploits":{"count":0,"verified":false,"firstPublished":null,"source":"Exploit-DB (https://gitlab.com/exploit-database/exploitdb)","entries":[]},"verdict":{"level":"high","text":"High impact if exploited, but EPSS currently rates exploitation as unlikely (2.31%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit."},"changes":[],"references":[{"url":"https://github.com/fracpete/vfsjfilechooser2/commit/9c9f2c317f3de5ece60a3ae28c371e9796e3909b","tags":["Patch","Third Party Advisory"],"source":"cve@mitre.org"},{"url":"https://github.com/fracpete/vfsjfilechooser2/issues/7","tags":["Exploit","Issue Tracking","Third Party Advisory"],"source":"cve@mitre.org"},{"url":"https://github.com/fracpete/vfsjfilechooser2/releases/tag/vfsjfilechooser2-0.2.9","tags":["Release Notes","Third Party Advisory"],"source":"cve@mitre.org"},{"url":"https://github.com/yetingli/PoCs/blob/main/CVE-2021-29061/Vfsjfilechooser2.md","tags":["Exploit","Patch","Third Party Advisory"],"source":"cve@mitre.org"},{"url":"https://github.com/yetingli/SaveResults/blob/main/md/vfsjfilechooser2.md","tags":["Exploit","Patch","Third Party Advisory"],"source":"cve@mitre.org"},{"url":"https://github.com/fracpete/vfsjfilechooser2/commit/9c9f2c317f3de5ece60a3ae28c371e9796e3909b","tags":["Patch","Third Party Advisory"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://github.com/fracpete/vfsjfilechooser2/issues/7","tags":["Exploit","Issue Tracking","Third Party Advisory"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://github.com/fracpete/vfsjfilechooser2/releases/tag/vfsjfilechooser2-0.2.9","tags":["Release Notes","Third Party Advisory"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://github.com/yetingli/PoCs/blob/main/CVE-2021-29061/Vfsjfilechooser2.md","tags":["Exploit","Patch","Third Party Advisory"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://github.com/yetingli/SaveResults/blob/main/md/vfsjfilechooser2.md","tags":["Exploit","Patch","Third Party Advisory"],"source":"af854a3a-2127-422b-91ae-364da2661108"}],"sources":{"nvd":"https://nvd.nist.gov/vuln/detail/CVE-2021-29061","epss":"https://www.first.org/epss/","kev":"https://www.cisa.gov/known-exploited-vulnerabilities-catalog","exploitdb":"https://www.exploit-db.com/"},"licence":"CC BY 4.0 — link back to the CVE Explorer if you publish the results; upstream data remains subject to its own terms."}