{"id":"CVE-2020-36649","aliases":["DEBIAN-CVE-2020-36649","EUVD-2023-0378","GHSA-798h-g4j5-5537","GHSA-qvjc-g5vr-mfgr","MGASA-2023-0204","UBUNTU-CVE-2020-36649"],"status":"published","title":"mholt PapaParse papaparse.js redos","description":"A vulnerability was found in mholt PapaParse up to 5.1.x. It has been classified as problematic. Affected is an unknown function of the file papaparse.js. The manipulation leads to inefficient regular expression complexity. Upgrading to version 5.2.0 is able to address this issue. The name of the patch is 235a12758cd77266d2e98fd715f53536b34ad621. It is recommended to upgrade the affected component. The identifier of this vulnerability is VDB-218004.","severity":{"version":"3.1","score":3.5,"vector":"CVSS:3.1/AV:A/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L","level":"low","assessor":"cna","from":"cve"},"epss":{"day":"2026-11-10","score":0.01428,"percentile":0.73209,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":true},"cwes":["CWE-1333","CWE-185"],"published":"2020-09-04T18:03:04Z","modified":"2026-10-26T12:00:11Z","fixes":[{"ecosystem":"npm","package":"papaparse","fixed_in":["5.2.0"],"sources":["ghsa","osv"]},{"ecosystem":"Debian:12","package":"mediawiki","fixed_in":["1:1.39.4-1~deb12u1"],"sources":["osv"]},{"ecosystem":"Debian:13","package":"mediawiki","fixed_in":["1:1.39.4-1"],"sources":["osv"]},{"ecosystem":"Debian:14","package":"mediawiki","fixed_in":["1:1.39.4-1"],"sources":["osv"]}],"affected":[{"source":"ghsa","ecosystem":"npm","package":"papaparse","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"5.2.0"}]}]},{"source":"osv","ecosystem":"Debian:12","package":"mediawiki","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1:1.39.4-1~deb12u1"}]}],"versions":["1:1.39.2-1"]},{"source":"osv","ecosystem":"Debian:13","package":"mediawiki","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1:1.39.4-1"}]}]},{"source":"osv","ecosystem":"Debian:14","package":"mediawiki","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1:1.39.4-1"}]}]},{"source":"osv","ecosystem":"npm","package":"papaparse","ranges":[{"type":"SEMVER","events":[{"introduced":"0"},{"fixed":"5.2.0"}]}]},{"source":"osv","ecosystem":"Mageia:8","package":"mediawiki","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1.35.10-1.mga8"}]}],"bundled":5},{"source":"osv","ecosystem":"Ubuntu:18.04:LTS","package":"mediawiki","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["1:1.27.3-1","1:1.27.4-1","1:1.27.4-2","1:1.27.4-3"]},{"source":"osv","ecosystem":"Ubuntu:Pro:20.04:LTS","package":"mediawiki","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["1:1.31.2-1ubuntu1","1:1.31.5-1","1:1.31.5-1ubuntu1","1:1.31.5-2","1:1.31.5-3","1:1.31.5-3ubuntu1","1:1.31.6-1","1:1.31.7-1","1:1.31.7-1ubuntu0.1~esm1"]},{"source":"osv","ecosystem":"Ubuntu:Pro:22.04:LTS","package":"mediawiki","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["1:1.35.3-1","1:1.35.4-1","1:1.35.5-1","1:1.35.5-1ubuntu1","1:1.35.5-1ubuntu2","1:1.35.5-1ubuntu3","1:1.35.6-1","1:1.35.6-1ubuntu0.1~esm1"]},{"source":"osv","ecosystem":"Ubuntu:Pro:24.04:LTS","package":"mediawiki","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["1:1.39.4-2","1:1.39.5-1","1:1.39.6-1","1:1.39.7-1","1:1.39.7-1ubuntu0.1~esm1"]},{"source":"osv","ecosystem":"Ubuntu:25.10","package":"mediawiki","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["1:1.43.1+dfsg-1","1:1.43.1+dfsg-2","1:1.43.3+dfsg-1"]},{"source":"osv","ecosystem":"Ubuntu:26.10","package":"mediawiki","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["1:1.43.8+dfsg-2","1:1.43.9+dfsg-1","1:1.43.9+dfsg-1ubuntu1"]},{"source":"osv","ecosystem":"Ubuntu:26.04:LTS","package":"mediawiki","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["1:1.43.3+dfsg-1","1:1.43.5+dfsg-1","1:1.43.6+dfsg-2","1:1.43.8+dfsg-1","1:1.43.8+dfsg-2"]}],"products":[{"vendor":"mholt","product":"papaparse"},{"vendor":"papaparse","product":"papaparse"}],"references":[{"url":"https://vuldb.com/?id.218004","tags":["vdb-entry","technical-description","x_transferred","Permissions Required","Third Party Advisory","report","web"]},{"url":"https://vuldb.com/?ctiid.218004","tags":["signature","permissions-required","x_transferred","Permissions Required","Third Party Advisory","report","web"]},{"url":"https://github.com/mholt/PapaParse/issues/777","tags":["issue-tracking","x_transferred","Exploit","Issue Tracking","Third Party Advisory","report","web"]},{"url":"https://github.com/mholt/PapaParse/pull/779","tags":["issue-tracking","x_transferred","Patch","Third Party Advisory","fix","web"]},{"url":"https://github.com/mholt/PapaParse/commit/235a12758cd77266d2e98fd715f53536b34ad621","tags":["patch","x_transferred","Patch","Third Party Advisory","fix","web","report"]},{"url":"https://github.com/mholt/PapaParse/releases/tag/5.2.0","tags":["patch","x_transferred","Release Notes","Third Party Advisory","advisory","web"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2020-36649","tags":["advisory"]},{"url":"https://github.com/advisories/GHSA-798h-g4j5-5537"},{"url":"https://snyk.io/vuln/SNYK-JS-PAPAPARSE-564258","tags":["web"]},{"url":"https://github.com/advisories/GHSA-qvjc-g5vr-mfgr"},{"url":"https://security-tracker.debian.org/tracker/CVE-2020-36649","tags":["advisory"]},{"url":"https://github.com/mholt/PapaParse","tags":["package"]},{"url":"https://advisories.mageia.org/MGASA-2023-0204.html","tags":["advisory"]},{"url":"https://bugs.mageia.org/show_bug.cgi?id=31463","tags":["report"]},{"url":"https://lists.wikimedia.org/hyperkitty/list/mediawiki-announce@lists.wikimedia.org/message/UEMW64LVEH3BEXCJV43CVS6XPYURKWU3/","tags":["web"]},{"url":"https://lists.wikimedia.org/hyperkitty/list/mediawiki-announce@lists.wikimedia.org/message/6UQBHI5FWLATD7QO7DI4YS54U7XSSLAN/","tags":["web"]},{"url":"https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/thread/AP65YEN762IBNQPOYGUVLTQIDLM5XD2A/","tags":["web"]},{"url":"https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/thread/ZGK4NZPIJ5ET2ANRZOUYPCRIB5I64JR7/","tags":["web"]},{"url":"https://ubuntu.com/security/CVE-2020-36649","tags":["report"]},{"url":"https://phabricator.wikimedia.org/T326946","tags":["report"]},{"url":"https://www.cve.org/CVERecord?id=CVE-2020-36649","tags":["report"]}],"sources":{"cve":[{"id":"CVE-2020-36649","title":"mholt PapaParse papaparse.js redos","description":"A vulnerability was found in mholt PapaParse up to 5.1.x. It has been classified as problematic. Affected is an unknown function of the file papaparse.js. The manipulation leads to inefficient regular expression complexity. Upgrading to version 5.2.0 is able to address this issue. The name of the patch is 235a12758cd77266d2e98fd715f53536b34ad621. It is recommended to upgrade the affected component. The identifier of this vulnerability is VDB-218004.","status":"published","published":"2023-01-11T14:50:51.436Z","modified":"2024-08-04T17:30:08.528Z","cvss":[{"version":"3.1","score":3.5,"vector":"CVSS:3.1/AV:A/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L","level":"low","assessor":"cna"},{"version":"3.0","score":3.5,"vector":"CVSS:3.0/AV:A/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L","level":"low","assessor":"cna"},{"version":"2.0","score":2.3,"vector":"AV:A/AC:M/Au:S/C:N/I:N/A:P","assessor":"cna"}],"cwes":["CWE-1333"],"updated_at":"2026-11-02T14:35:55.460269Z"}],"euvd":[{"id":"EUVD-2023-0378","description":"A vulnerability was found in mholt PapaParse up to 5.1.x. It has been classified as problematic. Affected is an unknown function of the file papaparse.js. The manipulation leads to inefficient regular expression complexity. Upgrading to version 5.2.0 is able to address this issue. The name of the patch is 235a12758cd77266d2e98fd715f53536b34ad621. It is recommended to upgrade the affected component. The identifier of this vulnerability is VDB-218004.","status":"published","published":"2023-01-11T14:50:51Z","modified":"2024-08-04T17:30:08Z","cvss":[{"version":"3.1","score":3.5,"vector":"CVSS:3.1/AV:A/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L","level":"low"}],"updated_at":"2026-11-03T03:07:02.510914Z"}],"ghsa":[{"id":"GHSA-798h-g4j5-5537","title":"Duplicate Advisory: PapaParse Inefficient Regular Expression Complexity vulnerability","description":"## Duplicate Advisory\nThis advisory has been withdrawn because it is a duplicate of GHSA-qvjc-g5vr-mfgr. This link is maintained to preserve external references.\n\n## Original Description\nA vulnerability was found in mholt PapaParse up to 5.1.x. It has been classified as problematic. Affected is an unknown function of the file papaparse.js. The manipulation leads to inefficient regular expression complexity. Upgrading to version 5.2.0 is able to address this issue. The name of the patch is 235a12758cd77266d2e98fd715f53536b34ad621. It is recommended to upgrade the affected component. The identifier of this vulnerability is VDB-218004.","status":"withdrawn","published":"2023-01-11T15:30:28Z","modified":"2025-06-16T14:03:06Z","cvss":[{"version":"3.1","score":7.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","level":"high"}],"cwes":["CWE-1333"],"updated_at":"2026-11-02T14:38:47.835488Z"},{"id":"GHSA-qvjc-g5vr-mfgr","title":"Regular Expression Denial of Service in papaparse","description":"Versions of `papaparse` prior to 5.2.0 are vulnerable to Regular Expression Denial of Service (ReDos). The `parse` function contains a malformed regular expression that takes exponentially longer to process non-numerical inputs. This allows attackers to stall systems and lead to Denial of Service.\n\n\n## Recommendation\n\nUpgrade to version 5.2.0 or later.","status":"published","published":"2020-09-04T18:03:04Z","modified":"2025-06-16T14:03:31Z","cvss":[{"version":"3.1","score":7.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","level":"high"}],"cwes":["CWE-185"],"updated_at":"2026-11-02T14:38:47.835488Z"}],"nvd":[{"id":"CVE-2020-36649","description":"A vulnerability was found in mholt PapaParse up to 5.1.x. It has been classified as problematic. Affected is an unknown function of the file papaparse.js. The manipulation leads to inefficient regular expression complexity. Upgrading to version 5.2.0 is able to address this issue. The name of the patch is 235a12758cd77266d2e98fd715f53536b34ad621. It is recommended to upgrade the affected component. The identifier of this vulnerability is VDB-218004.","status":"published","published":"2023-01-11T15:15:09.207Z","modified":"2026-06-17T03:15:53.543Z","cvss":[{"version":"3.1","score":3.5,"vector":"CVSS:3.1/AV:A/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L","level":"low","assessor":"secondary"},{"version":"3.1","score":7.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","level":"high","assessor":"primary"},{"version":"2.0","score":2.3,"vector":"AV:A/AC:M/Au:S/C:N/I:N/A:P","level":"low","assessor":"secondary"}],"cwes":["CWE-1333"],"updated_at":"2026-11-02T14:06:47.286386Z"}],"osv":[{"id":"CVE-2020-36649","description":"A vulnerability was found in mholt PapaParse up to 5.1.x. It has been classified as problematic. Affected is an unknown function of the file papaparse.js. The manipulation leads to inefficient regular expression complexity. Upgrading to version 5.2.0 is able to address this issue. The name of the patch is 235a12758cd77266d2e98fd715f53536b34ad621. It is recommended to upgrade the affected component. The identifier of this vulnerability is VDB-218004.","status":"published","published":"2023-01-11T15:15:09.207Z","modified":"2026-10-20T10:54:21.881579871Z","cvss":[{"version":"3.1","score":7.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","level":"high"}],"updated_at":"2026-11-02T15:44:16.936975Z"},{"id":"DEBIAN-CVE-2020-36649","description":"A vulnerability was found in mholt PapaParse up to 5.1.x. It has been classified as problematic. Affected is an unknown function of the file papaparse.js. The manipulation leads to inefficient regular expression complexity. Upgrading to version 5.2.0 is able to address this issue. The name of the patch is 235a12758cd77266d2e98fd715f53536b34ad621. It is recommended to upgrade the affected component. The identifier of this vulnerability is VDB-218004.","status":"published","published":"2023-01-11T15:15:09.207Z","modified":"2026-10-26T12:00:11.767421941Z","cvss":[{"version":"3.1","score":7.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","level":"high"}],"updated_at":"2026-11-02T15:45:34.019707Z"},{"id":"GHSA-798h-g4j5-5537","title":"Duplicate Advisory: PapaParse Inefficient Regular Expression Complexity vulnerability","description":"## Duplicate Advisory\nThis advisory has been withdrawn because it is a duplicate of GHSA-qvjc-g5vr-mfgr. This link is maintained to preserve external references.\n\n## Original Description\nA vulnerability was found in mholt PapaParse up to 5.1.x. It has been classified as problematic. Affected is an unknown function of the file papaparse.js. The manipulation leads to inefficient regular expression complexity. Upgrading to version 5.2.0 is able to address this issue. The name of the patch is 235a12758cd77266d2e98fd715f53536b34ad621. It is recommended to upgrade the affected component. The identifier of this vulnerability is VDB-218004.","status":"withdrawn","published":"2023-01-11T15:30:28Z","modified":"2025-06-16T14:03:06Z","cvss":[{"version":"3.1","score":7.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","level":"high"}],"cwes":["CWE-1333"],"updated_at":"2026-11-02T15:46:40.657155Z"},{"id":"GHSA-qvjc-g5vr-mfgr","title":"Regular Expression Denial of Service in papaparse","description":"Versions of `papaparse` prior to 5.2.0 are vulnerable to Regular Expression Denial of Service (ReDos). The `parse` function contains a malformed regular expression that takes exponentially longer to process non-numerical inputs. This allows attackers to stall systems and lead to Denial of Service.\n\n\n## Recommendation\n\nUpgrade to version 5.2.0 or later.","status":"published","published":"2020-09-04T18:03:04Z","modified":"2025-06-16T14:12:14.225514Z","cvss":[{"version":"3.1","score":7.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","level":"high"}],"cwes":["CWE-185"],"updated_at":"2026-11-02T15:46:55.122811Z"},{"id":"UBUNTU-CVE-2020-36649","description":"A vulnerability was found in mholt PapaParse up to 5.1.x. It has been classified as problematic. Affected is an unknown function of the file papaparse.js. The manipulation leads to inefficient regular expression complexity. Upgrading to version 5.2.0 is able to address this issue. The name of the patch is 235a12758cd77266d2e98fd715f53536b34ad621. It is recommended to upgrade the affected component. The identifier of this vulnerability is VDB-218004.","status":"published","published":"2023-01-11T15:15:00Z","modified":"2026-10-17T12:56:13.9950771Z","cvss":[{"version":"3.1","score":3.5,"vector":"CVSS:3.1/AV:A/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L","level":"low"},{"version":"3.1","score":7.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","level":"high"}],"updated_at":"2026-11-02T15:54:25.179924Z"},{"id":"MGASA-2023-0204","title":"Updated mediawiki packages fix security vulnerability","description":"Bundled PapaParse copy in VisualEditor has known ReDos (CVE-2020-36649).\n\nAn issue was discovered in MediaWiki before 1.35.9. When installing with a\npre-existing data directory that has weak permissions, the SQLite files\nare created with file mode 0644, i.e., world readable to local users.\nThese files include credentials data (CVE-2022-47927).\n\nAn issue was discovered in MediaWiki before 1.35.9. SpecialMobileHistory\nallows remote attackers to cause a denial of service because database\nqueries are slow (CVE-2023-22909).\n\nAn issue was discovered in MediaWiki before 1.35.9. E-Widgets does widget\nreplacement in HTML attributes, which can lead to XSS, because widget\nauthors often do not expect that their widget is executed in an HTML\nattribute context (CVE-2023-22911).\n\nAn issue was discovered in MediaWiki before 1.35.10. An auto-block can\noccur for an untrusted X-Forwarded-For header (CVE-2023-29141).\n\nOATHAuth allows replay attacks when MediaWiki is configured without\nObjectCache; Insecure Default Configuration (T330086).\n","status":"published","published":"2023-06-28T05:21:41Z","modified":"2026-04-16T04:42:16.939948655Z","updated_at":"2026-11-02T15:49:42.263076Z"}]}}