n8n: Expression Sandbox Escape via Shared Builtin Tampering and Code-Printer Injection Leads to Code Execution

Impact Two stages of expression code generation built source text by calling the global JSON.stringify at generation time: the compiler when printing synthetic string literals, and the isolate bridge when interpolating a timezone value into its per-evaluation wrapper. An expression that replaced...

EUVD-2026-74273

n8n: Expression Sandbox Escape via Shared Builtin Tampering and Code-Printer Injection Leads to Code Execution...

CVE-2026-86083

n8n is an open source workflow automation platform. Prior to 1.123.76, 2.37.7, and 2.38.2, the legacy expression engine generated source text by calling the mutable global JSON.stringify while printing synthetic string literals and interpolating timezone data. An expression could replace...

CVE-2026-86083 n8n: Expression Sandbox Escape via Shared Builtin Tampering and Code-Printer Injection Leads to Code Execution

n8n is an open source workflow automation platform. Prior to 1.123.76, 2.37.7, and 2.38.2, the legacy expression engine generated source text by calling the mutable global JSON.stringify while printing synthetic string literals and interpolating timezone data. An expression could replace...

CVE-2026-86083 n8n: Expression Sandbox Escape via Shared Builtin Tampering and Code-Printer Injection Leads to Code Execution

n8n is an open source workflow automation platform. Prior to 1.123.76, 2.37.7, and 2.38.2, the legacy expression engine generated source text by calling the mutable global JSON.stringify while printing synthetic string literals and interpolating timezone data. An expression could replace...

CVE-2026-86083 n8n: Expression Sandbox Escape via Shared Builtin Tampering and Code-Printer Injection Leads to Code Execution

n8n is an open source workflow automation platform. Prior to 1.123.76, 2.37.7, and 2.38.2, the legacy expression engine generated source text by calling the mutable global JSON.stringify while printing synthetic string literals and interpolating timezone data. An expression could replace...

CVE-2026-86083

n8n , an open-source workflow automation platform, is affected by a sandbox escape in its legacy expression engine. The root cause is that the engine called the mutable global JSON.stringify while generating source text for synthetic string literals and timezone interpolation. A crafted expressio...

PT-2026-88499

Impact Two stages of expression code generation built source text by calling the global JSON.stringify at generation time: the compiler when printing synthetic string literals, and the isolate bridge when interpolating a timezone value into its per-evaluation wrapper. An expression that replaced...

CVE-2026-13221

A flaw was found in Perl. When the Perl regular expression engine processes patterns with a very large number of alternative fixed strings, an internal data field can overflow. This leads to silently incorrect regular expression matches, causing the engine to either match strings it should not...

CVE-2026-72769

n8n before 1.123.67, 2.31.5, and 2.32.1 contains a prototype pollution vulnerability in the VM expression engine. An authenticated user able to create or edit a workflow expression can abuse the engine's array-element access to obtain a reference to a host built-in and pollute its prototype in th...

CVE-2026-72769

n8n (versions prior to 1.123.67, 2.31.5, and 2.32.1) contains a prototype pollution vulnerability in the VM expression engine. An authenticated user who can create/edit a workflow expression can abuse array-element access to reference a host builtin and pollute its prototype in the main n8n proce...

EUVD-2026-56095

n8n before 1.123.67, 2.31.5, and 2.32.1 contains a prototype pollution vulnerability in the VM expression engine. An authenticated user able to create or edit a workflow expression can abuse the engine's array-element access to obtain a reference to a host built-in and pollute its prototype in th...

CVE-2026-72769 n8n before 1.123.67 Prototype Pollution via VM Expression Engine

n8n before 1.123.67, 2.31.5, and 2.32.1 contains a prototype pollution vulnerability in the VM expression engine. An authenticated user able to create or edit a workflow expression can abuse the engine's array-element access to obtain a reference to a host built-in and pollute its prototype in th...

CVE-2026-72769 n8n before 1.123.67 Prototype Pollution via VM Expression Engine

n8n before 1.123.67, 2.31.5, and 2.32.1 contains a prototype pollution vulnerability in the VM expression engine. An authenticated user able to create or edit a workflow expression can abuse the engine's array-element access to obtain a reference to a host built-in and pollute its prototype in th...

CVE-2026-72769

n8n before 1.123.67, 2.31.5, and 2.32.1 contains a prototype pollution vulnerability in the VM expression engine. An authenticated user able to create or edit a workflow expression can abuse the engine's array-element access to obtain a reference to a host built-in and pollute its prototype in th...

PT-2026-70171

n8n before 1.123.67, 2.31.5, and 2.32.1 contains a prototype pollution vulnerability in the VM expression engine. An authenticated user able to create or edit a workflow expression can abuse the engine's array-element access to obtain a reference to a host built-in and pollute its prototype in th...

CVE-2026-15534

CVE-2026-15534 affects Perl up to version 5.45.1. The vulnerability is in the regex engine’s S_regmatch component: an undersized superlinear cache allows out-of-bounds heap reads and writes during pattern matching. The cache counts are computed as subject length times participating WHILEM nodes, ...

DEBIAN-CVE-2026-68499

re2 provides Node.js bindings for Google's RE2 regular expression engine. Prior to 1.25.2, re2's String.prototype.match implementation with a global RE2 pattern that can match the empty string fails to advance its native matching cursor in lib/match.cc, causing an infinite loop and unbounded nati...

CVE-2026-68499

CVE-2026-68499 concerns the re2 Node.js bindings. Affected component is the String.prototype.match implementation in re2 when using a global RE2 pattern that can match the empty string. The underlying issue is that the native matching cursor is not advanced in lib/match.cc, causing an infinite lo...

Prototype Pollution

Overview n8n-core is a Core functionality of n8n Affected versions of this package are vulnerable to Prototype Pollution in the expression engine. An attacker can cause the application to become unresponsive or crash by manipulating array-element access to obtain a reference to a host built-in an...