CVE-2026-40345 deepmerge-ts: Stack exhaustion when merging recursive object graphs

deepmerge-ts is a typescript library providing functionality to deep merging of javascript objects. Prior to 8.0.0, the deepmerge, deepmergeCustom, deepmergeInto, and deepmergeIntoCustom APIs do not track visited objects or object pairs when recursively merging records. When two input values...

EUVD-2026-63468

deepmerge-ts is a typescript library providing functionality to deep merging of javascript objects. Prior to 8.0.0, the deepmerge, deepmergeCustom, deepmergeInto, and deepmergeIntoCustom APIs do not track visited objects or object pairs when recursively merging records. When two input values...

CVE-2026-40345 deepmerge-ts: Stack exhaustion when merging recursive object graphs

deepmerge-ts is a typescript library providing functionality to deep merging of javascript objects. Prior to 8.0.0, the deepmerge, deepmergeCustom, deepmergeInto, and deepmergeIntoCustom APIs do not track visited objects or object pairs when recursively merging records. When two input values...

CVE-2026-40345

deepmerge-ts

CVE-2026-40345 deepmerge-ts: Stack exhaustion when merging recursive object graphs

deepmerge-ts is a typescript library providing functionality to deep merging of javascript objects. Prior to 8.0.0, the deepmerge, deepmergeCustom, deepmergeInto, and deepmergeIntoCustom APIs do not track visited objects or object pairs when recursively merging records. When two input values...

CVE-2026-40345: Uncontrolled Recursion

deepmerge-ts is a typescript library providing functionality to deep merging of javascript objects. Prior to 8.0.0, the deepmerge, deepmergeCustom, deepmergeInto, and deepmergeIntoCustom APIs do not track visited objects or object pairs when recursively merging records. When two input values...

Uncontrolled Resource Consumption

deepmerge-ts is vulnerable to Uncontrolled Resource Consumption. The vulnerability is due to failure to track visited objects or object pairs during recursive merging, which allows an attacker to provide recursive object graphs that trigger infinite recursion, causing a RangeError and potentially...

CVE-2026-40345

creationtimestamp| type| source ---|---|--- 2026-08-17 14:35:03+00:00| published-proof-of-concept| https://github.com/RebeccaStevens/deepmerge-ts/security/advisories/GHSA-ggr8-5vv4-36mx 2026-08-17 18:00:03+00:00| seen| Telegram/S7eqLraqEg6Kwu3Kw8cANfzCQgkQhswVCeNeKxsnaOowjNQ 2026-08-18...

Exploit for CVE-2026-40345

deepmerge-ts mergeleft.self, right.self - mergeleft.sel...

NPM: DeepmergeTS has stack exhaustion when merging recursive object graphs

NPM: DeepmergeTS has stack exhaustion when merging recursive object graphs vulnerability discovered by ? in WordPress Npm deepmerge-ts versions 8.0.0...

GHSA-GGR8-5VV4-36MX DeepmergeTS has stack exhaustion when merging recursive object graphs

Summary deepmerge and deepmergeInto can be crashed with a crafted recursive object graph. When both merged values contain self-references at the same property path, the library recurses until Node throws RangeError: Maximum call stack size exceeded. Details Record merging is implemented...

Uncontrolled Recursion

Overview org.webjars.npm:deepmerge-ts is a Deeply merge 2 or more objects respecting type information. Affected versions of this package are vulnerable to Uncontrolled Recursion via the deepmerge and deepmergeInto functions. An attacker can cause a process crash or denial of service by supplying...

Uncontrolled Recursion

Overview deepmerge-ts is a Deeply merge 2 or more objects respecting type information. Affected versions of this package are vulnerable to Uncontrolled Recursion via the deepmerge and deepmergeInto functions. An attacker can cause a process crash or denial of service by supplying crafted recursiv...

DeepmergeTS has stack exhaustion when merging recursive object graphs

Summary deepmerge and deepmergeInto can be crashed with a crafted recursive object graph. When both merged values contain self-references at the same property path, the library recurses until Node throws RangeError: Maximum call stack size exceeded. Details Record merging is implemented...

PT-2026-76717

Name of the Vulnerable Software and Affected Versions deepmerge-ts versions prior to 8.0.0 Description The library fails to track visited objects or object pairs during the recursive merging of records. When two input values contain self-references at the same property path, the merge logic...

NPM: ts-deepmerge: Prototype Method Override leads to DoS

NPM: ts-deepmerge: Prototype Method Override leads to DoS vulnerability discovered by ? in WordPress Npm ts-deepmerge versions 8.0.0...

GHSA-87MF-GV2C-C62C ts-deepmerge: Prototype Method Override leads to DoS

Versions of the package ts-deepmerge before 8.0.0 are vulnerable to Uncaught Exception due to the improper handling of built-in Object.prototype methods such as toString, valueOf. When user-controlled input contains these keys with non-function values, the resulting merged object becomes broken —...

ts-deepmerge: Prototype Method Override leads to DoS

Versions of the package ts-deepmerge before 8.0.0 are vulnerable to Uncaught Exception due to the improper handling of built-in Object.prototype methods such as toString, valueOf. When user-controlled input contains these keys with non-function values, the resulting merged object becomes broken —...

CVE-2026-12644

Versions of the package ts-deepmerge before 8.0.0 are vulnerable to Uncaught Exception due to the improper handling of built-in Object.prototype methods such as toString, valueOf. When user-controlled input contains these keys with non-function values, the resulting merged object becomes broken —...

CVE-2026-12644

Versions of the package ts-deepmerge before 8.0.0 are vulnerable to Uncaught Exception due to the improper handling of built-in Object.prototype methods such as toString, valueOf. When user-controlled input contains these keys with non-function values, the resulting merged object becomes broken —...