{"id":"EUVD-2026-23742","enisaUuid":"fbcdc7e5-7356-3bde-8aff-0ae7e72fa09e","description":"A vulnerability was determined in brikcss merge up to 1.3.0. This affects an unknown part. Executing a manipulation of the argument __proto__/constructor.prototype/prototype can lead to improperly controlled modification of object prototype attributes. The attack may be performed from remote. The vendor was contacted early about this disclosure but did not respond in any way.","datePublished":"Apr 20, 2026, 1:45:12 AM","dateUpdated":"Apr 20, 2026, 2:53:13 PM","baseScore":6.9,"baseScoreVersion":"4.0","baseScoreVector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:X","references":"https://vuldb.com/vuln/358229\nhttps://vuldb.com/vuln/358229/cti\nhttps://vuldb.com/submit/791805\nhttps://github.com/sudo-secure/security-research/blob/main/brikcss-merge/prototype-pollution/PoC.md\n","aliases":"CVE-2026-6594\nGHSA-3jc6-6r48-v6qf\n","assigner":"VulDB","epss":0.34,"enisaIdProduct":[{"id":"c2be31bb-0667-3451-bb14-73bd7575b1a5","product":{"name":"merge","vendor":{"name":"brikcss"}},"product_version":"1.2"},{"id":"cac627c2-2a50-367d-8b47-d06b991955d9","product":{"name":"merge","vendor":{"name":"brikcss"}},"product_version":"1.0"},{"id":"cda01141-1520-3c7b-8028-2d2413f8bc7d","product":{"name":"merge","vendor":{"name":"brikcss"}},"product_version":"1.3.0"},{"id":"cf01abf1-cbc7-3878-a5d4-ecbb442f07dd","product":{"name":"merge","vendor":{"name":"brikcss"}},"product_version":"1.1"}],"enisaIdVendor":[{"id":"2107ec4a-d153-36b0-885f-caf6cd408d4b","vendor":{"name":"brikcss"}}],"enisaIdVulnerability":[{"id":"3e232632-1b3b-3316-a2ac-595215d1dbf6","vulnerability":{"id":"CVE-2026-6594","description":"A vulnerability was determined in brikcss merge up to 1.3.0. This affects an unknown part. Executing a manipulation of the argument __proto__/constructor.prototype/prototype can lead to improperly controlled modification of object prototype attributes. The attack may be performed from remote. The vendor was contacted early about this disclosure but did not respond in any way.","datePublished":"Apr 20, 2026, 1:45:12 AM","dateUpdated":"Apr 20, 2026, 2:53:13 PM","status":"PUBLISHED","baseScore":6.9,"baseScoreVersion":"4.0","baseScoreVector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:X","references":"https://vuldb.com/vuln/358229\nhttps://vuldb.com/vuln/358229/cti\nhttps://vuldb.com/submit/791805\nhttps://github.com/sudo-secure/security-research/blob/main/brikcss-merge/prototype-pollution/PoC.md\n","enisa_id":"EUVD-2026-23742\n","assigner":"VulDB","epss":0.34,"dataProcessed":"Oct 28, 2026, 7:17:09 AM","vulnerabilityProduct":[{"id":"531a8aa8-3bc5-31fe-a851-e1ff5a7fa33d","product":{"name":"merge","vendor":{"name":"brikcss"}},"product_version":"1.2"},{"id":"99773680-4b3e-3d93-98ca-64a664ab4cc0","product":{"name":"merge","vendor":{"name":"brikcss"}},"product_version":"1.3.0"},{"id":"c29bb5bc-f26d-3698-9f9d-f535a12f7672","product":{"name":"merge","vendor":{"name":"brikcss"}},"product_version":"1.0"},{"id":"fb627d61-b133-30a2-ace0-36d670f77837","product":{"name":"merge","vendor":{"name":"brikcss"}},"product_version":"1.1"}],"vulnerabilityVendor":[{"id":"04c5f502-e65d-3b56-8bff-d05645e4063c","vendor":{"name":"brikcss"}}]}},{"id":"66ef9134-90f7-359c-a337-ec3f0fb99a22","vulnerability":{"id":"GHSA-3jc6-6r48-v6qf","description":"Deep Merge is Vulnerable to Prototype Pollution Through Lack of Sanitization","datePublished":"Apr 20, 2026, 3:34:41 AM","dateUpdated":"Apr 23, 2026, 2:23:26 PM","baseScore":0.0,"references":"https://nvd.nist.gov/vuln/detail/CVE-2026-6594\nhttps://github.com/brikcss/merge\nhttps://github.com/sudo-secure/security-research/blob/main/brikcss-merge/prototype-pollution/PoC.md\nhttps://vuldb.com/submit/791805\nhttps://vuldb.com/vuln/358229\nhttps://vuldb.com/vuln/358229/cti\n","enisa_id":"EUVD-2026-23742\n","aliases":"GHSA-3jc6-6r48-v6qf\nCVE-2026-6594\n","epss":0.0,"dataProcessed":"Oct 25, 2026, 1:55:10 AM","vulnerabilityProduct":[],"vulnerabilityVendor":[]}}],"enisaIdAdvisory":[]}