{"id":"CVE-2023-45811","summary":"Prototype pollution vulnerability leading to arbitrary code execution in synchrony deobfuscator","details":"Synchrony deobfuscator is a javascript cleaner & deobfuscator.  A `__proto__` pollution vulnerability exists in versions before v2.4.4. Successful exploitation could lead to arbitrary code execution. A `__proto__` pollution vulnerability exists in the `LiteralMap` transformer allowing crafted input to modify properties in the Object prototype. A fix has been released in `deobfuscator@2.4.4`. Users are advised to upgrade. Users unable to upgrade should launch node with the [--disable-proto=delete][disable-proto] or [--disable-proto=throw][disable-proto] flags\n","aliases":["GHSA-jg82-xh3w-rhxx"],"modified":"2026-08-12T03:51:48.529348013Z","published":"2023-10-17T22:37:20.249Z","database_specific":{"osv_generated_from":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2023/45xxx/CVE-2023-45811.json","cna_assigner":"GitHub_M","cwe_ids":["CWE-1321"]},"references":[{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2023/45xxx/CVE-2023-45811.json"},{"type":"ADVISORY","url":"https://github.com/relative/synchrony/security/advisories/GHSA-jg82-xh3w-rhxx"},{"type":"ADVISORY","url":"https://github.com/relative/synchrony/security/advisories/src/transformers/literalmap.ts"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2023-45811"},{"type":"FIX","url":"https://github.com/relative/synchrony/commit/b583126be94c4db7c5a478f1c5204bfb4162cf40"}],"affected":[{"ranges":[{"type":"GIT","repo":"https://github.com/relative/synchrony","events":[{"introduced":"c73b7845a1d82333235644fc682f207325a5d9ba"},{"fixed":"3c6cbdb06f17c6bd25fa30a7cf491e3ccb07c5f3"},{"fixed":"b583126be94c4db7c5a478f1c5204bfb4162cf40"}],"database_specific":{"source":["CPE_RANGE","REFERENCES"],"cpe":"cpe:2.3:a:relative:synchrony:*:*:*:*:*:node.js:*:*","extracted_events":[{"introduced":"2.0.1"},{"fixed":"2.4.4"}]}}],"versions":["2.4.3","2.4.2","2.4.1","2.4.0","2.3.0","2.2.0","2.1.5","2.1.4","2.1.3","2.1.2","2.1.1","2.1.0","2.0.1"],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2023-45811.json"}}],"schema_version":"1.9.0","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:C/C:H/I:H/A:H"}]}