CVE-2023-45811
HIGHSynchrony < 2.4.4 - Prototype Pollution via LiteralMap Transformer
Title source: llmDescription
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 `[email protected]`. 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
References (3)
Core 3
Core References
Exploit, Vendor Advisory x_refsource_confirm
https://github.com/relative/synchrony/security/advisories/GHSA-jg82-xh3w-rhxx
Patch x_refsource_misc
https://github.com/relative/synchrony/commit/b583126be94c4db7c5a478f1c5204bfb4162cf40
Broken Link x_refsource_misc
https://github.com/relative/synchrony/security/advisories/src/transformers/literalmap.ts
Scores
CVSS v3
8.1
EPSS
0.0042
EPSS Percentile
32.9%
Attack Vector
LOCAL
CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:C/C:H/I:H/A:H
CISA SSVC
Vulnrichment
Exploitation
poc
Automatable
no
Technical Impact
total
Details
CWE
CWE-1321
Status
published
Products (2)
npm/deobfuscator
2.0.1 - 2.4.4npm
relative/synchrony
2.0.1 - 2.4.4
Published
Oct 17, 2023
Tracked Since
Feb 18, 2026