{"id":"CVE-2024-27088","aliases":["CLSA-2026-1773793041","CLSA-2026-1781139201","DEBIAN-CVE-2024-27088","EUVD-2024-0508","GHSA-4gmj-3p3h-gm8h","UBUNTU-CVE-2024-27088"],"status":"published","title":"es5-ext Regular Expression Denial of Service in `function#copy` and `function#toStringTokens`","description":"es5-ext contains ECMAScript 5 extensions. Passing functions with very long names or complex default argument names into `function#copy` or `function#toStringTokens` may cause the script to stall. The vulnerability is patched in v0.10.63.","severity":{"version":"3.1","score":0,"vector":"CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:N","level":"none","assessor":"cna","from":"cve"},"epss":{"day":"2026-11-12","score":0.00539,"percentile":0.45875,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":true,"fix_available":true},"cwes":["CWE-1333","CWE-400"],"published":"2024-02-26T16:50:05Z","modified":"2026-11-11T10:30:52Z","exploits":[{"source":"pocgithub","id":"200101WhoAmI/CVE-2024-27088","title":"200101WhoAmI/CVE-2024-27088","date":"2024-08-21","url":"https://github.com/200101WhoAmI/CVE-2024-27088"}],"fixes":[{"ecosystem":"npm","package":"es5-ext","fixed_in":["0.10.63"],"sources":["ghsa","osv"]},{"ecosystem":"TuxCare:npm","package":"es5-ext","fixed_in":["0.10.7-tuxcare.1","0.10.46-tuxcare.1"],"sources":["osv"]},{"ecosystem":"Debian:13","package":"node-es5-ext","fixed_in":["0.10.64+dfsg1+~1.1.0-1"],"sources":["osv"]},{"ecosystem":"Debian:14","package":"node-es5-ext","fixed_in":["0.10.64+dfsg1+~1.1.0-1"],"sources":["osv"]}],"affected":[{"source":"ghsa","ecosystem":"npm","package":"es5-ext","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0.10.0"},{"fixed":"0.10.63"}]}]},{"source":"osv","ecosystem":"TuxCare:npm","package":"es5-ext","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0.10.7-tuxcare.0"},{"fixed":"0.10.7-tuxcare.1"}]}],"versions":["0.10.7"]},{"source":"osv","ecosystem":"TuxCare:npm","package":"es5-ext","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0.10.46-tuxcare.0"},{"fixed":"0.10.46-tuxcare.1"}]}],"versions":["0.10.46"]},{"source":"osv","ecosystem":"Debian:12","package":"node-es5-ext","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["0.10.62+dfsg1+~1.1.0-2","0.10.64+dfsg1+~1.1.0-1","0.10.64+dfsg1+~1.1.0-2"]},{"source":"osv","ecosystem":"Debian:13","package":"node-es5-ext","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"0.10.64+dfsg1+~1.1.0-1"}]}]},{"source":"osv","ecosystem":"Debian:14","package":"node-es5-ext","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"0.10.64+dfsg1+~1.1.0-1"}]}]},{"source":"osv","ecosystem":"npm","package":"es5-ext","ranges":[{"type":"SEMVER","events":[{"introduced":"0.10.0"},{"fixed":"0.10.63"}]}]},{"source":"osv","ecosystem":"Ubuntu:18.04:LTS","package":"node-es5-ext","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["0.10.30-1"]},{"source":"osv","ecosystem":"Ubuntu:20.04:LTS","package":"node-es5-ext","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["0.10.30-1"]},{"source":"osv","ecosystem":"Ubuntu:22.04:LTS","package":"node-es5-ext","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["0.10.53+~1.1.0-1","0.10.53+~1.1.0-2"]},{"source":"osv","ecosystem":"Ubuntu:24.04:LTS","package":"node-es5-ext","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["0.10.62+dfsg1+~1.1.0-2"]},{"source":"osv","ecosystem":"Ubuntu:25.10","package":"node-es5-ext","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["0.10.64+dfsg1+~1.1.0-2"]},{"source":"osv","ecosystem":"Ubuntu:26.10","package":"node-es5-ext","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["0.10.64+dfsg1+~1.1.0-2"]},{"source":"osv","ecosystem":"Ubuntu:26.04:LTS","package":"node-es5-ext","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["0.10.64+dfsg1+~1.1.0-2"]}],"products":[{"vendor":"medikoo","product":"es5-ext"}],"references":[{"url":"https://github.com/medikoo/es5-ext/security/advisories/GHSA-4gmj-3p3h-gm8h","tags":["x_refsource_CONFIRM","x_transferred","Patch","Vendor Advisory","advisory","web","report"]},{"url":"https://github.com/medikoo/es5-ext/issues/201","tags":["x_refsource_MISC","x_transferred","Exploit","Issue Tracking","report","web"]},{"url":"https://github.com/medikoo/es5-ext/commit/3551cdd7b2db08b1632841f819d008757d28e8e2","tags":["x_refsource_MISC","x_transferred","Patch","fix","web","report"]},{"url":"https://github.com/medikoo/es5-ext/commit/a52e95736690ad1d465ebcd9791d54570e294602","tags":["x_refsource_MISC","x_transferred","Patch","fix","web","report"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2024-27088","tags":["advisory"]},{"url":"https://github.com/advisories/GHSA-4gmj-3p3h-gm8h"},{"url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2024/27xxx/CVE-2024-27088.json","tags":["advisory"]},{"url":"https://security-tracker.debian.org/tracker/CVE-2024-27088","tags":["advisory"]},{"url":"https://github.com/medikoo/es5-ext","tags":["package"]},{"url":"https://ubuntu.com/security/CVE-2024-27088","tags":["report"]},{"url":"https://www.cve.org/CVERecord?id=CVE-2024-27088","tags":["report"]}],"sources":{"cve":[{"id":"CVE-2024-27088","title":"es5-ext Regular Expression Denial of Service in `function#copy` and `function#toStringTokens`","description":"es5-ext contains ECMAScript 5 extensions. Passing functions with very long names or complex default argument names into `function#copy` or `function#toStringTokens` may cause the script to stall. The vulnerability is patched in v0.10.63.","status":"published","published":"2024-02-26T16:50:05.714Z","modified":"2024-08-09T18:21:21.894Z","cvss":[{"version":"3.1","score":0,"vector":"CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:N","level":"none","assessor":"cna"}],"cwes":["CWE-400","CWE-1333"],"updated_at":"2026-11-02T14:34:12.982241Z"}],"euvd":[{"id":"EUVD-2024-0508","description":"es5-ext contains ECMAScript 5 extensions. Passing functions with very long names or complex default argument names into `function#copy` or `function#toStringTokens` may cause the script to stall. The vulnerability is patched in v0.10.63.","status":"published","published":"2024-02-26T16:50:05Z","modified":"2024-08-09T18:21:21Z","cvss":[{"version":"3.1","score":0,"vector":"CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:N","level":"none"}],"updated_at":"2026-11-03T00:56:20.709797Z"}],"ghsa":[{"id":"GHSA-4gmj-3p3h-gm8h","title":"es5-ext vulnerable to Regular Expression Denial of Service in `function#copy` and `function#toStringTokens`","description":"### Impact\n\nPassing functions with very long names or complex default argument names into `function#copy` or`function#toStringTokens` may put script to stall\n\n### Patches\nFixed with https://github.com/medikoo/es5-ext/commit/3551cdd7b2db08b1632841f819d008757d28e8e2 and https://github.com/medikoo/es5-ext/commit/a52e95736690ad1d465ebcd9791d54570e294602\nPublished with v0.10.63\n\n### Workarounds\nNo real workaround aside of refraining from using above utilities.\n\n### References\nhttps://github.com/medikoo/es5-ext/issues/201\n","status":"published","published":"2024-02-26T20:01:28Z","modified":"2026-03-15T05:08:03Z","cwes":["CWE-1333"],"updated_at":"2026-11-02T14:39:36.642723Z"}],"nvd":[{"id":"CVE-2024-27088","description":"es5-ext contains ECMAScript 5 extensions. Passing functions with very long names or complex default argument names into `function#copy` or `function#toStringTokens` may cause the script to stall. The vulnerability is patched in v0.10.63.","status":"published","published":"2024-02-26T17:15:11Z","modified":"2026-06-17T07:19:08.413Z","cvss":[{"version":"3.1","score":0,"vector":"CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:N","level":"none","assessor":"secondary"},{"version":"3.1","score":5.5,"vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H","level":"medium","assessor":"primary"}],"cwes":["CWE-400","CWE-1333"],"updated_at":"2026-11-02T14:09:38.473056Z"}],"osv":[{"id":"CVE-2024-27088","title":"es5-ext Regular Expression Denial of Service in `function#copy` and `function#toStringTokens`","description":"es5-ext contains ECMAScript 5 extensions. Passing functions with very long names or complex default argument names into `function#copy` or `function#toStringTokens` may cause the script to stall. The vulnerability is patched in v0.10.63.","status":"published","published":"2024-02-26T16:50:05.714Z","modified":"2026-11-11T10:30:52.980808047Z","cvss":[{"version":"3.1","score":0,"vector":"CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:N","level":"none"}],"cwes":["CWE-1333","CWE-400"],"updated_at":"2026-11-11T11:06:28.337192Z"},{"id":"DEBIAN-CVE-2024-27088","description":"es5-ext contains ECMAScript 5 extensions. Passing functions with very long names or complex default argument names into `function#copy` or `function#toStringTokens` may cause the script to stall. The vulnerability is patched in v0.10.63.","status":"published","published":"2024-02-26T17:15:11Z","modified":"2026-11-02T12:01:28.127048024Z","cvss":[{"version":"3.1","score":5.5,"vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H","level":"medium"}],"updated_at":"2026-11-02T15:45:42.204259Z"},{"id":"UBUNTU-CVE-2024-27088","description":"es5-ext contains ECMAScript 5 extensions. Passing functions with very long names or complex default argument names into `function#copy` or `function#toStringTokens` may cause the script to stall. The vulnerability is patched in v0.10.63.","status":"published","published":"2024-02-26T17:15:00Z","modified":"2026-10-17T12:56:43.515079058Z","cvss":[{"version":"3.1","score":0,"vector":"CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:N","level":"none"},{"version":"3.1","score":5.5,"vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H","level":"medium"}],"updated_at":"2026-11-02T16:54:48.333535Z"},{"id":"CLSA-2026-1773793041","title":"TuxCare security update for es5-ext (1 CVE)","description":"TuxCare rebuilt es5-ext to address 1 CVE. Fixed in 0.10.7-tuxcare.1.","status":"published","published":"2026-08-04T14:52:13Z","modified":"2026-10-15T09:47:46.782669243Z","updated_at":"2026-11-02T15:43:43.621843Z"},{"id":"CLSA-2026-1781139201","title":"TuxCare security update for es5-ext (1 CVE)","description":"TuxCare rebuilt es5-ext to address 1 CVE. Fixed in 0.10.46-tuxcare.1.","status":"published","published":"2026-08-04T14:52:36Z","modified":"2026-10-15T09:47:51.082903869Z","updated_at":"2026-11-02T15:43:45.445699Z"},{"id":"GHSA-4gmj-3p3h-gm8h","title":"es5-ext vulnerable to Regular Expression Denial of Service in `function#copy` and `function#toStringTokens`","description":"### Impact\n\nPassing functions with very long names or complex default argument names into `function#copy` or`function#toStringTokens` may put script to stall\n\n### Patches\nFixed with https://github.com/medikoo/es5-ext/commit/3551cdd7b2db08b1632841f819d008757d28e8e2 and https://github.com/medikoo/es5-ext/commit/a52e95736690ad1d465ebcd9791d54570e294602\nPublished with v0.10.63\n\n### Workarounds\nNo real workaround aside of refraining from using above utilities.\n\n### References\nhttps://github.com/medikoo/es5-ext/issues/201\n","status":"published","published":"2024-02-26T20:01:28Z","modified":"2026-09-10T03:50:05.256193314Z","cwes":["CWE-1333"],"updated_at":"2026-11-02T15:46:37.148947Z"}]}}