CVE-2023-45811

HIGH

Relative Synchrony < 2.4.4 - Prototype Pollution

Title source: rule
STIX 2.1

Description

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

Scores

CVSS v3 8.1
EPSS 0.0016
EPSS Percentile 37.2%
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