{"id":"CVE-2024-45801","aliases":["CLSA-2026-1774398077","CLSA-2026-1774398080","CLSA-2026-1774743817","CLSA-2026-1774743830","CLSA-2026-1780274966","CLSA-2026-1780274972","CLSA-2026-1780361389","CLSA-2026-1786539981","CLSA-2026-1786636600","CLSA-2026-1786636613","CLSA-2026-1786636721","CLSA-2026-1786731948","CLSA-2026-1792156267","CLSA-2026-1792156382","CLSA-2026-1792156500","CLSA-2026-1792156589","CLSA-2026-1792156694","CLSA-2026-1792156909","CLSA-2026-1792157013","CLSA-2026-1792157113","CLSA-2026-1792161408","CLSA-2026-1792424449","CLSA-2026-1792424891","CLSA-2026-1793101871","CLSA-2026-1793102041","CLSA-2026-1793287856","DEBIAN-CVE-2024-45801","EUVD-2024-2835","GHSA-2cf5-4w76-r9qv","GHSA-39q2-94rc-95cp","GHSA-cj63-jhhr-wcxv","GHSA-cjmm-f4jc-qw8r","GHSA-g9r4-xpmj-mj65","GHSA-h8r8-wccr-v5f2","GHSA-mmhx-hmjr-r674","GHSA-mrv2-3pqr-j5jr","GHSA-q2c6-c6pm-g3gh","GHSA-q42p-pg8m-cqh6","RHSA-2024:10762","ROOT-APP-NPM-GHSA-2cf5-4w76-r9qv","ROOT-APP-NPM-GHSA-g9r4-xpmj-mj65","ROOT-APP-NPM-GHSA-q2c6-c6pm-g3gh","ROOT-APP-NPM-GHSA-q42p-pg8m-cqh6","UBUNTU-CVE-2024-45801"],"status":"published","title":"Tampering by prototype polution in DOMPurify","description":"DOMPurify is a DOM-only, super-fast, uber-tolerant XSS sanitizer for HTML, MathML and SVG. It has been discovered that malicious HTML using special nesting techniques can bypass the depth checking added to DOMPurify in recent releases. It was also possible to use Prototype Pollution to weaken the depth check. This renders dompurify unable to avoid cross site scripting (XSS) attacks. This issue has been addressed in versions 2.5.4 and 3.1.3 of DOMPurify. All users are advised to upgrade. There are no known workarounds for this vulnerability.","severity":{"version":"3.1","score":7.3,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L","level":"high","assessor":"cna","from":"cve"},"epss":{"day":"2026-11-09","score":0.00894,"percentile":0.59754,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":true},"cwes":["CWE-1321","CWE-1333","CWE-471","CWE-94"],"published":"2019-06-05T14:07:48Z","modified":"2026-11-05T13:28:25Z","fixes":[{"ecosystem":"npm","package":"handlebars","fixed_in":["3.0.8","4.5.2","4.5.3","4.1.2","4.0.14","3.0.7"],"sources":["ghsa","osv"]},{"ecosystem":"npm","package":"dompurify","fixed_in":["2.5.4","3.1.3"],"sources":["ghsa","osv"]},{"ecosystem":"TuxCare:npm","package":"handlebars","fixed_in":["1.3.0-tuxcare.1","1.0.12-tuxcare.2"],"sources":["osv"]},{"ecosystem":"Debian:12","package":"node-dompurify","fixed_in":["2.4.1+dfsg+~2.4.0-2+deb12u1"],"sources":["osv"]},{"ecosystem":"Root:npm","package":"handlebars","fixed_in":["3.0.7-aikido.3","3.0.3-aikido.2","3.0.8-aikido.1","3.0.8-aikido.2","3.0.7-aikido.1","3.0.7-aikido.2"],"sources":["osv"]},{"ecosystem":"Root:npm","package":"@rootio/handlebars","fixed_in":["3.0.7-root.io.3","3.0.3-root.io.2","3.0.8-root.io.1","3.0.8-root.io.2","3.0.7-root.io.1","3.0.7-root.io.2"],"sources":["osv"]}],"affected":[{"source":"ghsa","ecosystem":"npm","package":"handlebars","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"3.0.8"}]}]},{"source":"ghsa","ecosystem":"npm","package":"handlebars","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"4.0.0"},{"fixed":"4.5.2"}]}]},{"source":"ghsa","ecosystem":"npm","package":"handlebars","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"3.0.8"}]}]},{"source":"ghsa","ecosystem":"npm","package":"handlebars","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"4.0.0"},{"fixed":"4.5.3"}]}]},{"source":"ghsa","ecosystem":"npm","package":"dompurify","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"2.5.4"}]}]},{"source":"ghsa","ecosystem":"npm","package":"dompurify","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"3.0.0"},{"fixed":"3.1.3"}]}]},{"source":"ghsa","ecosystem":"npm","package":"handlebars","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"3.0.8"}]}]},{"source":"ghsa","ecosystem":"npm","package":"handlebars","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"4.0.0"},{"fixed":"4.5.3"}]}]},{"source":"ghsa","ecosystem":"npm","package":"handlebars","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"4.1.0"},{"fixed":"4.1.2"}]}]},{"source":"ghsa","ecosystem":"npm","package":"handlebars","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"4.0.0"},{"fixed":"4.0.14"}]}]},{"source":"ghsa","ecosystem":"npm","package":"handlebars","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"3.0.7"}]}]},{"source":"osv","ecosystem":"TuxCare:npm","package":"dompurify","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"2.3.0-tuxcare.0"},{"fixed":"2.3.0-tuxcare.1"}]}],"versions":["2.3.0"],"bundled":4},{"source":"osv","ecosystem":"TuxCare:npm","package":"dompurify","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"2.4.3-tuxcare.0"},{"fixed":"2.4.3-tuxcare.1"}]}],"versions":["2.4.3"],"bundled":3},{"source":"osv","ecosystem":"TuxCare:npm","package":"handlebars","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"1.3.0-tuxcare.0"},{"fixed":"1.3.0-tuxcare.1"}]}],"versions":["1.3.0"]},{"source":"osv","ecosystem":"TuxCare:npm","package":"handlebars","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"1.0.12-tuxcare.0"},{"fixed":"1.0.12-tuxcare.2"}]}],"versions":["1.0.12","1.0.12-tuxcare.1"]},{"source":"osv","ecosystem":"TuxCare:npm","package":"dompurify","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"3.0.3-tuxcare.0"},{"fixed":"3.0.3-tuxcare.1"}]}],"versions":["3.0.3"],"bundled":6},{"source":"osv","ecosystem":"TuxCare:npm","package":"dompurify","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"2.4.0-tuxcare.0"},{"fixed":"2.4.0-tuxcare.1"}]}],"versions":["2.4.0"],"bundled":5},{"source":"osv","ecosystem":"TuxCare:npm","package":"dompurify","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"2.4.7-tuxcare.0"},{"fixed":"2.4.7-tuxcare.1"}]}],"versions":["2.4.7"],"bundled":5},{"source":"osv","ecosystem":"TuxCare:npm","package":"dompurify","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"3.1.2-tuxcare.0"},{"fixed":"3.1.2-tuxcare.2"}]}],"versions":["3.1.2","3.1.2-tuxcare.1"],"bundled":9},{"source":"osv","ecosystem":"TuxCare:npm","package":"dompurify","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"3.0.2-tuxcare.0"},{"fixed":"3.0.2-tuxcare.2"}]}],"versions":["3.0.2","3.0.2-tuxcare.1"],"bundled":9},{"source":"osv","ecosystem":"TuxCare:npm","package":"dompurify","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"2.0.8-tuxcare.0"},{"fixed":"2.0.8-tuxcare.2"}]}],"versions":["2.0.8","2.0.8-tuxcare.1"],"bundled":6},{"source":"osv","ecosystem":"TuxCare:npm","package":"dompuri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Party Advisory","advisory","web","article","report"]},{"url":"https://github.com/cure53/DOMPurify/commit/1e520262bf4c66b5efda49e2316d6d1246ca7b21","tags":["x_refsource_MISC","Patch","fix","web","article","report"]},{"url":"https://github.com/cure53/DOMPurify/commit/26e1d69ca7f769f5c558619d644d90dd8bf26ebc","tags":["x_refsource_MISC","Patch","fix","web","article","report"]},{"url":"https://www.npmjs.com/advisories/1316","tags":["web"]},{"url":"https://github.com/advisories/GHSA-2cf5-4w76-r9qv"},{"url":"https://www.npmjs.com/advisories/1325","tags":["web"]},{"url":"https://github.com/advisories/GHSA-g9r4-xpmj-mj65"},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2024-45801","tags":["advisory"]},{"url":"https://github.com/advisories/GHSA-mmhx-hmjr-r674"},{"url":"https://www.npmjs.com/advisories/1324","tags":["web"]},{"url":"https://github.com/advisories/GHSA-q2c6-c6pm-g3gh"},{"url":"https://github.com/handlebars-lang/handlebars.js/issues/1495","tags":["web"]},{"url":"https://github.com/handlebars-lang/handlebars.js/commit/7372d4e9dffc9d70c09671aa28b9392a1577fd86","tags":["web"]},{"url":"https://snyk.io/vuln/SNYK-JS-HANDLEBARS-173692","tags":["web"]},{"url":"https://www.npmjs.com/advisories/755","tags":["web"]},{"url":"https://github.com/handlebars-lang/handlebars.js/commit/0d6d8c335ad81bad1b672fc56b6a44f6aa472dac","tags":["web"]},{"url":"https://github.com/handlebars-lang/handlebars.js/commit/85c8783b34fc6d36145d8b53885ad0b9e3c3f9c4","tags":["web"]},{"url":"https://github.com/handlebars-lang/handlebars.js/commit/cd38583216dce3252831916323202749431c773e","tags":["web"]},{"url":"https://github.com/advisories/GHSA-q42p-pg8m-cqh6"},{"url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2024/45xxx/CVE-2024-45801.json","tags":["advisory"]},{"url":"https://security-tracker.debian.org/tracker/CVE-2024-45801","tags":["advisory"]},{"url":"https://github.com/cure53/DOMPurify","tags":["package"]},{"url":"https://access.redhat.com/errata/RHSA-2024:10762","tags":["advisory"]},{"url":"https://access.redhat.com/security/updates/classification/#moderate","tags":["article"]},{"url":"https://bugzilla.redhat.com/show_bug.cgi?id=2310908","tags":["report"]},{"url":"https://bugzilla.redhat.com/show_bug.cgi?id=2312119","tags":["report"]},{"url":"https://bugzilla.redhat.com/show_bug.cgi?id=2312631","tags":["report"]},{"url":"https://bugzilla.redhat.com/show_bug.cgi?id=2318271","tags":["report"]},{"url":"https://security.access.redhat.com/data/csaf/v2/advisories/2024/rhsa-2024_10762.json","tags":["advisory"]},{"url":"https://access.redhat.com/security/cve/CVE-2024-8775","tags":["report"]},{"url":"https://www.cve.org/CVERecord?id=CVE-2024-8775","tags":["advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2024-8775","tags":["advisory"]},{"url":"https://github.com/advisories/GHSA-jpxc-vmjf-9fcj","tags":["advisory"]},{"url":"https://access.redhat.com/security/cve/CVE-2024-9902","tags":["report"]},{"url":"https://www.cve.org/CVERecord?id=CVE-2024-9902","tags":["advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2024-9902","tags":["advisory"]},{"url":"https://access.redhat.com/security/cve/CVE-2024-45296","tags":["report"]},{"url":"https://www.cve.org/CVERecord?id=CVE-2024-45296","tags":["advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2024-45296","tags":["advisory"]},{"url":"https://github.com/pillarjs/path-to-regexp/commit/29b96b4a1de52824e1ca0f49a701183cc4ed476f","tags":["article"]},{"url":"https://github.com/pillarjs/path-to-regexp/commit/60f2121e9b66b7b622cc01080df0aabda9eedee6","tags":["article"]},{"url":"https://github.com/pillarjs/path-to-regexp/security/advisories/GHSA-9wv6-86v2-598j","tags":["article"]},{"url":"https://access.redhat.com/security/cve/CVE-2024-45801","tags":["report"]},{"url":"https://www.cve.org/CVERecord?id=CVE-2024-45801","tags":["advisory","report"]},{"url":"https://ubuntu.com/security/CVE-2024-45801","tags":["report"]}],"sources":{"cve":[{"id":"CVE-2024-45801","title":"Tampering by prototype polution in DOMPurify","description":"DOMPurify is a DOM-only, super-fast, uber-tolerant XSS sanitizer for HTML, MathML and SVG. It has been discovered that malicious HTML using special nesting techniques can bypass the depth checking added to DOMPurify in recent releases. It was also possible to use Prototype Pollution to weaken the depth check. This renders dompurify unable to avoid cross site scripting (XSS) attacks. This issue has been addressed in versions 2.5.4 and 3.1.3 of DOMPurify. All users are advised to upgrade. There are no known workarounds for this vulnerability.","status":"published","published":"2024-09-16T18:25:28.065Z","modified":"2024-09-16T20:04:47.181Z","cvss":[{"version":"3.1","score":7.3,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L","level":"high","assessor":"cna"}],"cwes":["CWE-1333"],"updated_at":"2026-11-02T14:34:07.831255Z"}],"euvd":[{"id":"EUVD-2024-2835","description":"DOMPurify is a DOM-only, super-fast, uber-tolerant XSS sanitizer for HTML, MathML and SVG. It has been discovered that malicious HTML using special nesting techniques can bypass the depth checking added to DOMPurify in recent releases. It was also possible to use Prototype Pollution to weaken the depth check. This renders dompurify unable to avoid cross site scripting (XSS) attacks. This issue has been addressed in versions 2.5.4 and 3.1.3 of DOMPurify. All users are advised to upgrade. There are no known workarounds for this vulnerability.","status":"published","published":"2024-09-16T18:25:28Z","modified":"2024-09-16T20:04:47Z","cvss":[{"version":"3.1","score":7.3,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L","level":"high"}],"updated_at":"2026-11-03T00:55:17.319093Z"}],"ghsa":[{"id":"GHSA-2cf5-4w76-r9qv","title":"Arbitrary Code Execution in handlebars","description":"Versions of `handlebars` prior to 3.0.8 or 4.5.2 are vulnerable to Arbitrary Code Execution. The package's lookup helper fails to properly validate templates, allowing attackers to submit templates that execute arbitrary JavaScript in the system. It can be used to run arbitrary code in a server processing Handlebars templates or on a victim's browser (effectively serving as Cross-Site Scripting).\n\nThe following template can be used to demonstrate the vulnerability:  \n```{{#with \"constructor\"}}\n\t{{#with split as |a|}}\n\t\t{{pop (push \"alert('Vulnerable Handlebars JS');\")}}\n\t\t{{#with (concat (lookup join (slice 0 1)))}}\n\t\t\t{{#each (slice 2 3)}}\n\t\t\t\t{{#with (apply 0 a)}}\n\t\t\t\t\t{{.}}\n\t\t\t\t{{/with}}\n\t\t\t{{/each}}\n\t\t{{/with}}\n\t{{/with}}\n{{/with}}```\n\n\n## Recommendation\n\nUpgrade to version 3.0.8, 4.5.2 or later.","status":"published","published":"2020-09-04T14:57:38Z","modified":"2024-02-07T05:08:28Z","cvss":[{"version":"3.1","score":7.3,"vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:R/S:C/C:L/I:H/A:L","level":"high"}],"cwes":["CWE-94"],"updated_at":"2026-11-02T14:37:36.076201Z"},{"id":"GHSA-mmhx-hmjr-r674","title":"DOMPurify allows tampering by prototype pollution","description":"It has been discovered that malicious HTML using special nesting techniques can bypass the depth checking added to DOMPurify in recent releases. It was also possible to use Prototype Pollution to weaken the depth check.\n\nThis renders dompurify unable to avoid XSS attack.\n\nFixed by https://github.com/cure53/DOMPurify/commit/1e520262bf4c66b5efda49e2316d6d1246ca7b21 (3.x branch) and https://github.com/cure53/DOMPurify/commit/26e1d69ca7f769f5c558619d644d90dd8bf26ebc (2.x branch).","status":"published","published":"2024-09-16T20:34:26Z","modified":"2024-09-16T22:37:33Z","cvss":[{"version":"4.0","score":8.3,"vector":"CVSS:4.0/AV:N/AC:H/AT:N/PR:N/UI:N/VC:L/VI:H/VA:L/SC:N/SI:N/SA:N","level":"high"},{"version":"3.1","score":7,"vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:H/A:L","level":"high"}],"cwes":["CWE-1321","CWE-1333"],"updated_at":"2026-11-02T14:38:03.800952Z"},{"id":"GHSA-q42p-pg8m-cqh6","title":"Prototype Pollution in handlebars","description":"Versions of `handlebars` prior to 4.0.14 are vulnerable to Prototype Pollution. Templates may alter an Objects' prototype, thus allowing an attacker to execute arbitrary code on the server.\n\n\n## Recommendation\n\nFor handlebars 4.1.x upgrade to 4.1.2 or later.\nFor handlebars 4.0.x upgrade to 4.0.14 or later.","status":"published","published":"2019-06-05T14:07:48Z","modified":"2023-11-29T20:32:55Z","cvss":[{"version":"3.1","score":7.3,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L","level":"high"}],"cwes":["CWE-471"],"updated_at":"2026-11-02T14:37:22.840002Z"},{"id":"GHSA-g9r4-xpmj-mj65","title":"Prototype Pollution in handlebars","description":"Versions of `handlebars` prior to 3.0.8 or 4.5.3 are vulnerable to prototype pollution. It is possible to add or modify properties to the Object prototype through a malicious template. This may allow attackers to crash the application or execute Arbitrary Code in specific conditions.\n\n\n## Recommendation\n\nUpgrade to version 3.0.8, 4.5.3 or later.","status":"published","published":"2020-09-04T15:06:32Z","modified":"2023-01-09T05:04:02Z","cwes":["CWE-1321"],"updated_at":"2026-11-02T14:36:08.267721Z"},{"id":"GHSA-q2c6-c6pm-g3gh","title":"Arbitrary Code Execution in handlebars","description":"Versions of `handlebars` prior to 3.0.8 or 4.5.3 are vulnerable to Arbitrary Code Execution. The package's lookup helper fails to properly validate templates, allowing attackers to submit templates that execute arbitrary JavaScript in the system. It is due to an incomplete fix for a [previous issue](https://www.npmjs.com/advisories/1316). This vulnerability can be used to run arbitrary code in a server processing Handlebars templates or on a victim's browser (effectively serving as Cross-Site Scripting).\n\n\n## Recommendation\n\nUpgrade to version 3.0.8, 4.5.3 or later.","status":"published","published":"2020-09-04T15:07:38Z","modified":"2023-01-09T05:04:24Z","updated_at":"2026-11-02T14:36:09.554044Z"}],"nvd":[{"id":"CVE-2024-45801","description":"DOMPurify is a DOM-only, super-fast, uber-tolerant XSS sanitizer for HTML, MathML and SVG. It has been discovered that malicious HTML using special nesting techniques can bypass the depth checking added to DOMPurify in recent releases. It was also possible to use Prototype Pollution to weaken the depth check. This renders dompurify unable to avoid cross site scripting (XSS) attacks. This issue has been addressed in versions 2.5.4 and 3.1.3 of DOMPurify. All users are advised to upgrade. There are no known workarounds for this vulnerability.","status":"published","published":"2024-09-16T19:16:11.08Z","modified":"2026-06-17T07:54:50.71Z","cvss":[{"version":"3.1","score":7.3,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L","level":"high","assessor":"secondary"},{"version":"3.1","score":6.1,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N","level":"medium","assessor":"primary"}],"cwes":["CWE-1333","CWE-1321"],"updated_at":"2026-11-02T14:10:26.717759Z"}],"osv":[{"id":"CVE-2024-45801","title":"Tampering by prototype polution in DOMPurify","description":"DOMPurify is a DOM-only, super-fast, uber-tolerant XSS sanitizer for HTML, MathML and SVG. It has been discovered that malicious HTML using special nesting techniques can bypass the depth checking added to DOMPurify in recent releases. It was also possible to use Prototype Pollution to weaken the depth check. This renders dompurify unable to avoid cross site scripting (XSS) attacks. This issue has been addressed in versions 2.5.4 and 3.1.3 of DOMPurify. All users are advised to upgrade. There are no known workarounds for this vulnerability.","status":"published","published":"2024-09-16T18:25:28.065Z","modified":"2026-10-28T02:31:05.411603639Z","cvss":[{"version":"3.1","score":7.3,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L","level":"high"}],"cwes":["CWE-1333"],"updated_at":"2026-11-02T15:44:42.790566Z"},{"id":"DEBIAN-CVE-2024-45801","description":"DOMPurify is a DOM-only, super-fast, uber-tolerant XSS sanitizer for HTML, MathML and SVG. It has been discovered that malicious HTML using special nesting techniques can bypass the depth checking added to DOMPurify in recent releases. It was also possible to use Prototype Pollution to weaken the depth check. This renders dompurify unable to avoid cross site scripting (XSS) attacks. This issue has been addressed in versions 2.5.4 and 3.1.3 of DOMPurify. All users are advised to upgrade. There are no known workarounds for this vulnerability.","status":"published","published":"2024-09-16T19:16:11.08Z","modified":"2026-11-02T12:02:49.693213495Z","cvss":[{"version":"3.1","score":6.1,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N","level":"medium"}],"updated_at":"2026-11-02T15:45:43.473331Z"},{"id":"GHSA-2cf5-4w76-r9qv","title":"Arbitrary Code Execution in handlebars","description":"Versions of `handlebars` prior to 3.0.8 or 4.5.2 are vulnerable to Arbitrary Code Execution. The package's lookup helper fails to properly validate templates, allowing attackers to submit templates that execute arbitrary JavaScript in the system. It can be used to run arbitrary code in a server processing Handlebars templates or on a victim's browser (effectively serving as Cross-Site Scripting).\n\nThe following template can be used to demonstrate the vulnerability:  \n```{{#with \"constructor\"}}\n\t{{#with split as |a|}}\n\t\t{{pop (push \"alert('Vulnerable Handlebars JS');\")}}\n\t\t{{#with (concat (lookup join (slice 0 1)))}}\n\t\t\t{{#each (slice 2 3)}}\n\t\t\t\t{{#with (apply 0 a)}}\n\t\t\t\t\t{{.}}\n\t\t\t\t{{/with}}\n\t\t\t{{/each}}\n\t\t{{/with}}\n\t{{/with}}\n{{/with}}```\n\n\n## Recommendation\n\nUpgrade to version 3.0.8, 4.5.2 or later.","status":"published","published":"2020-09-04T14:57:38Z","modified":"2026-09-10T03:48:33.174881747Z","cvss":[{"version":"3.1","score":7.3,"vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:R/S:C/C:L/I:H/A:L","level":"high"}],"cwes":["CWE-94"],"updated_at":"2026-11-02T15:46:34.338541Z"},{"id":"GHSA-mmhx-hmjr-r674","title":"DOMPurify allows tampering by prototype pollution","description":"It has been discovered that malicious HTML using special nesting techniques can bypass the depth checking added to DOMPurify in recent releases. It was also possible to use Prototype Pollution to weaken the depth check.\n\nThis renders dompurify unable to avoid XSS attack.\n\nFixed by https://github.com/cure53/DOMPurify/commit/1e520262bf4c66b5efda49e2316d6d1246ca7b21 (3.x branch) and https://github.com/cure53/DOMPurify/commit/26e1d69ca7f769f5c558619d644d90dd8bf26ebc (2.x branch).","status":"published","published":"2024-09-16T20:34:26Z","modified":"2026-09-10T03:50:18.282689819Z","cvss":[{"version":"3.1","score":7,"vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:H/A:L","level":"high"},{"version":"4.0","score":8.3,"vector":"CVSS:4.0/AV:N/AC:H/AT:N/PR:N/UI:N/VC:L/VI:H/VA:L/SC:N/SI:N/SA:N","level":"high"}],"cwes":["CWE-1321","CWE-1333"],"updated_at":"2026-11-02T15:46:52.170928Z"},{"id":"GHSA-q42p-pg8m-cqh6","title":"Prototype Pollution in handlebars","description":"Versions of `handlebars` prior to 4.0.14 are vulnerable to Prototype Pollution. Templates may alter an Objects' prototype, thus allowing an attacker to execute arbitrary code on the server.\n\n\n## Recommendation\n\nFor handlebars 4.1.x upgrade to 4.1.2 or later.\nFor handlebars 4.0.x upgrade to 4.0.14 or later.","status":"published","published":"2019-06-05T14:07:48Z","modified":"2026-09-10T03:48:23.648231681Z","cvss":[{"version":"3.1","score":7.3,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L","level":"high"}],"cwes":["CWE-471"],"updated_at":"2026-11-02T15:46:54.055966Z"},{"id":"RHSA-2024:10762","title":"Red Hat Security Advisory: Red Hat Ansible Automation Platform 2.4 Product Security and Bug Fix Update","status":"published","published":"2024-12-04T10:02:18Z","modified":"2026-10-16T10:03:48Z","cvss":[{"version":"3.1","score":7,"vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:H/A:L","level":"high"}],"updated_at":"2026-11-02T15:53:12.787505Z"},{"id":"UBUNTU-CVE-2024-45801","description":"DOMPurify is a DOM-only, super-fast, uber-tolerant XSS sanitizer for HTML, MathML and SVG. It has been discovered that malicious HTML using special nesting techniques can bypass the depth checking added to DOMPurify in recent releases. It was also possible to use Prototype Pollution to weaken the depth check. This renders dompurify unable to avoid cross site scripting (XSS) attacks. This issue has been addressed in versions 2.5.4 and 3.1.3 of DOMPurify. All users are advised to upgrade. There are no known workarounds for this vulnerability.","status":"published","published":"2024-09-16T19:16:00Z","modified":"2026-10-17T12:57:23.760075676Z","cvss":[{"version":"3.1","score":7.3,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L","level":"high"},{"version":"3.1","score":6.1,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N","level":"medium"}],"updated_at":"2026-11-02T16:55:02.636559Z"},{"id":"CLSA-2026-1774398077","title":"TuxCare security update for dompurify (4 CVEs)","description":"TuxCare rebuilt dompurify to address 4 CVEs. Fixed in 2.3.0-tuxcare.1.","status":"published","published":"2026-08-04T14:52:15Z","modified":"2026-10-15T09:47:04.371306811Z","updated_at":"2026-11-02T15:43:43.621843Z"},{"id":"CLSA-2026-1774398080","title":"TuxCare security update for dompurify (3 CVEs)","description":"TuxCare rebuilt dompurify to address 3 CVEs. Fixed in 2.4.3-tuxcare.1.","status":"published","published":"2026-08-04T14:52:15Z","modified":"2026-10-15T09:47:04.367991282Z","updated_at":"2026-11-02T15:43:43.621843Z"},{"id":"CLSA-2026-1774743817","title":"TuxCare security update for handlebars (1 CVE)","description":"TuxCare rebuilt handlebars to address 1 CVE. Fixed in 1.3.0-tuxcare.1.","status":"published","published":"2026-08-04T14:52:15Z","modified":"2026-10-15T09:47:48.668758728Z","updated_at":"2026-11-02T15:43:43.621843Z"},{"id":"CLSA-2026-1774743830","title":"TuxCare security update for handlebars (3 CVEs)","description":"TuxCare rebuilt handlebars to address 3 CVEs. Fixed in 1.0.12-tuxcare.2.","status":"published","published":"2026-08-04T14:52:16Z","modified":"2026-10-23T19:28:13.663406058Z","updated_at":"2026-11-02T15:43:43.621843Z"},{"id":"CLSA-2026-1780274966","title":"TuxCare security update for dompurify (10 CVEs)","description":"TuxCare rebuilt dompurify to address 10 CVEs. Fixed in 3.0.3-tuxcare.1.","status":"published","published":"2026-08-04T14:52:34Z","modified":"2026-10-15T09:48:03.584932787Z","updated_at":"2026-11-02T15:43:45.090939Z"},{"id":"CLSA-2026-1780274972","title":"TuxCare security update for dompurify (9 CVEs)","description":"TuxCare rebuilt dompurify to address 9 CVEs. Fixed in 2.4.0-tuxcare.1.","status":"published","published":"2026-08-04T14:52:34Z","modified":"2026-10-23T19:28:10.361736614Z","updated_at":"2026-11-02T15:43:45.090939Z"},{"id":"CLSA-2026-1780361389","title":"TuxCare security update for dompurify (9 CVEs)","description":"TuxCare rebuilt dompurify to address 9 CVEs. Fixed in 2.4.7-tuxcare.1.","status":"published","published":"2026-08-04T14:52:34Z","modified":"2026-10-15T09:48:03.558095016Z","updated_at":"2026-11-02T15:43:45.445699Z"},{"id":"CLSA-2026-1786539981","title":"TuxCare security update for dompurify (10 CVEs)","description":"TuxCare rebuilt dompurify to address 10 CVEs. Fixed in 2.3.0-tuxcare.1.","status":"withdrawn","published":"2026-08-12T13:06:21Z","modified":"2026-10-26T13:21:31Z","updated_at":"2026-11-02T15:43:46.850893Z"},{"id":"CLSA-2026-1786636600","title":"TuxCare security update for dompurify (16 CVEs)","description":"TuxCare rebuilt dompurify to address 16 CVEs. Fixed in 2.4.0-tuxcare.1.","status":"withdrawn","published":"2026-08-13T15:56:40Z","modified":"2026-10-26T13:21:31Z","updated_at":"2026-11-02T15:43:47.20725Z"},{"id":"CLSA-2026-1786636613","title":"TuxCare security update for dompurify (11 CVEs)","description":"TuxCare rebuilt dompurify to address 11 CVEs. Fixed in 2.4.3-tuxcare.1.","status":"withdrawn","published":"2026-08-13T15:56:53Z","modified":"2026-10-26T13:21:31Z","updated_at":"2026-11-02T15:43:47.20725Z"},{"id":"CLSA-2026-1786636721","title":"TuxCare security update for dompurify (14 CVEs)","description":"TuxCare rebuilt dompurify to address 14 CVEs. Fixed in 2.4.7-tuxcare.1.","status":"withdrawn","published":"2026-08-13T15:58:41Z","modified":"2026-10-26T13:21:31Z","updated_at":"2026-11-02T15:43:47.20725Z"},{"id":"CLSA-2026-1786731948","title":"TuxCare security update for dompurify (34 CVEs)","description":"TuxCare rebuilt dompurify to address 34 CVEs. Fixed in 3.0.3-tuxcare.1.","status":"withdrawn","published":"2026-08-14T18:25:48Z","modified":"2026-10-26T13:21:31Z","updated_at":"2026-11-02T15:43:47.20725Z"},{"id":"CLSA-2026-1792156267","title":"TuxCare security update for dompurify (9 CVEs)","description":"TuxCare rebuilt dompurify to address 9 CVEs. Fixed in 3.1.2-tuxcare.2.","status":"published","published":"2026-10-16T13:11:07Z","modified":"2026-10-21T20:43:22.742858668Z","updated_at":"2026-11-02T15:43:50.949147Z"},{"id":"CLSA-2026-1792156382","title":"TuxCare security update for dompurify (9 CVEs)","description":"TuxCare rebuilt dompurify to address 9 CVEs. Fixed in 3.0.2-tuxcare.2.","status":"published","published":"2026-10-16T13:13:02Z","modified":"2026-10-21T20:43:22.190952605Z","updated_at":"2026-11-02T15:43:50.949147Z"},{"id":"CLSA-2026-1792156500","title":"TuxCare security update for dompurify (6 CVEs)","description":"TuxCare rebuilt dompurify to address 6 CVEs. Fixed in 2.0.8-tuxcare.2.","status":"published","published":"2026-10-16T13:15:00Z","modified":"2026-10-23T19:28:12.602609601Z","updated_at":"2026-11-02T15:43:50.949147Z"},{"id":"CLSA-2026-1792156589","title":"TuxCare security update for dompurify (10 CVEs)","description":"TuxCare rebuilt dompurify to address 10 CVEs. Fixed in 3.0.9-tuxcare.2.","status":"published","published":"2026-10-16T13:16:29Z","modified":"2026-10-21T20:43:20.928803832Z","updated_at":"2026-11-02T15:43:50.949147Z"},{"id":"CLSA-2026-1792156694","title":"TuxCare security update for dompurify (11 CVEs)","description":"TuxCare rebuilt dompurify to address 11 CVEs. Fixed in 3.0.8-tuxcare.2.","status":"published","published":"2026-10-16T13:18:14Z","modified":"2026-10-21T20:43:18.588659369Z","updated_at":"2026-11-02T15:43:50.949147Z"},{"id":"CLSA-2026-1792156909","title":"TuxCare security update for dompurify (10 CVEs)","description":"TuxCare rebuilt dompurify to address 10 CVEs. Fixed in 3.0.1-tuxcare.2.","status":"published","published":"2026-10-16T13:21:49Z","modified":"2026-10-21T20:43:22.31228165Z","updated_at":"2026-11-02T15:43:50.949147Z"},{"id":"CLSA-2026-1792157013","title":"TuxCare security update for dompurify (13 CVEs)","description":"TuxCare rebuilt dompurify to address 13 CVEs. Fixed in 3.1.0-tuxcare.2.","status":"published","published":"2026-10-16T13:23:33Z","modified":"2026-10-21T20:43:22.452640022Z","updated_at":"2026-11-02T15:43:50.949147Z"},{"id":"CLSA-2026-1792157113","title":"TuxCare security update for dompurify (12 CVEs)","description":"TuxCare rebuilt dompurify to address 12 CVEs. Fixed in 3.0.11-tuxcare.2.","status":"published","published":"2026-10-16T13:25:13Z","modified":"2026-10-21T20:43:21.625485698Z","updated_at":"2026-11-02T15:43:50.949147Z"},{"id":"CLSA-2026-1792161408","title":"TuxCare security update for dompurify (8 CVEs)","description":"TuxCare rebuilt dompurify to address 8 CVEs. Fixed in 3.1.1-tuxcare.2.","status":"published","published":"2026-10-16T14:36:47Z","modified":"2026-10-21T20:43:19.85040711Z","updated_at":"2026-11-02T15:43:51.213191Z"},{"id":"CLSA-2026-1792424449","title":"TuxCare security update for dompurify (12 CVEs)","description":"TuxCare rebuilt dompurify to address 12 CVEs. Fixed in 2.3.3-tuxcare.3.","status":"published","published":"2026-10-19T15:40:49Z","modified":"2026-11-05T13:28:25.722214359Z","updated_at":"2026-11-05T16:37:45.64821Z"},{"id":"CLSA-2026-1792424891","title":"TuxCare security update for dompurify (13 CVEs)","description":"TuxCare rebuilt dompurify to address 13 CVEs. Fixed in 2.3.10-tuxcare.3.","status":"published","published":"2026-10-19T15:48:11Z","modified":"2026-10-19T19:15:02.914996103Z","updated_at":"2026-11-02T15:43:54.119956Z"},{"id":"CLSA-2026-1793101871","title":"TuxCare security update for dompurify (11 CVEs)","description":"TuxCare rebuilt dompurify to address 11 CVEs. Fixed in 3.0.5-tuxcare.4.","status":"published","published":"2026-10-27T11:51:11Z","modified":"2026-10-27T13:30:17.537780888Z","updated_at":"2026-11-02T15:43:55.34846Z"},{"id":"CLSA-2026-1793102041","title":"TuxCare security update for dompurify (11 CVEs)","description":"TuxCare rebuilt dompurify to address 11 CVEs. Fixed in 3.0.4-tuxcare.4.","status":"published","published":"2026-10-27T11:54:01Z","modified":"2026-10-27T13:30:18.443508774Z","updated_at":"2026-11-02T15:43:55.34846Z"},{"id":"CLSA-2026-1793287856","title":"TuxCare security update for dompurify (3 CVEs)","description":"TuxCare rebuilt dompurify to address 3 CVEs. Fixed in 3.0.6-tuxcare.8.","status":"published","published":"2026-10-29T16:30:57Z","modified":"2026-10-29T19:45:49.863275125Z","updated_at":"2026-11-02T15:43:55.669514Z"},{"id":"GHSA-g9r4-xpmj-mj65","title":"Prototype Pollution in handlebars","description":"Versions of `handlebars` prior to 3.0.8 or 4.5.3 are vulnerable to prototype pollution. It is possible to add or modify properties to the Object prototype through a malicious template. This may allow attackers to crash the application or execute Arbitrary Code in specific conditions.\n\n\n## Recommendation\n\nUpgrade to version 3.0.8, 4.5.3 or later.","status":"published","published":"2020-09-04T15:06:32Z","modified":"2026-09-10T03:49:13.649783342Z","cwes":["CWE-1321"],"updated_at":"2026-11-02T15:46:47.472172Z"},{"id":"GHSA-q2c6-c6pm-g3gh","title":"Arbitrary Code Execution in handlebars","description":"Versions of `handlebars` prior to 3.0.8 or 4.5.3 are vulnerable to Arbitrary Code Execution. The package's lookup helper fails to properly validate templates, allowing attackers to submit templates that execute arbitrary JavaScript in the system. It is due to an incomplete fix for a [previous issue](https://www.npmjs.com/advisories/1316). This vulnerability can be used to run arbitrary code in a server processing Handlebars templates or on a victim's browser (effectively serving as Cross-Site Scripting).\n\n\n## Recommendation\n\nUpgrade to version 3.0.8, 4.5.3 or later.","status":"published","published":"2020-09-04T15:07:38Z","modified":"2026-09-10T03:48:58.277710865Z","updated_at":"2026-11-02T15:46:53.700556Z"},{"id":"ROOT-APP-NPM-GHSA-2cf5-4w76-r9qv","title":"GHSA-2cf5-4w76-r9qv in handlebars - Patched by Root","description":"Root has patched GHSA-2cf5-4w76-r9qv in the handlebars package for Root:npm. Multiple fixed versions available.","status":"published","published":"2026-10-20T10:47:36Z","modified":"2026-10-20T11:15:38.540557189Z","updated_at":"2026-11-02T15:53:27.940619Z"},{"id":"ROOT-APP-NPM-GHSA-g9r4-xpmj-mj65","title":"GHSA-g9r4-xpmj-mj65 in handlebars - Patched by Root","description":"Root has patched GHSA-g9r4-xpmj-mj65 in the handlebars package for Root:npm. Multiple fixed versions available.","status":"published","published":"2026-10-20T10:47:36Z","modified":"2026-10-20T11:15:39.391242933Z","updated_at":"2026-11-02T15:53:27.940619Z"},{"id":"ROOT-APP-NPM-GHSA-q2c6-c6pm-g3gh","title":"GHSA-q2c6-c6pm-g3gh in handlebars - Patched by Root","description":"Root has patched GHSA-q2c6-c6pm-g3gh in the handlebars package for Root:npm. Multiple fixed versions available.","status":"published","published":"2026-10-20T10:47:36Z","modified":"2026-10-20T11:15:37.928892011Z","updated_at":"2026-11-02T15:53:27.940619Z"},{"id":"ROOT-APP-NPM-GHSA-q42p-pg8m-cqh6","title":"GHSA-q42p-pg8m-cqh6 in handlebars - Patched by Root","description":"Root has patched GHSA-q42p-pg8m-cqh6 in the handlebars package for Root:npm. Multiple fixed versions available.","status":"published","published":"2026-10-20T10:47:36Z","modified":"2026-10-20T11:15:37.540463486Z","updated_at":"2026-11-02T15:53:27.940619Z"}]}}