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...

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...

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...

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...

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...

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...

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 —...

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...

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 —...

EUVD-2026-37991

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

The CVE affects ts-deepmerge before version 8.0.0. The vulnerability stems from improper handling of built-in Object.prototype methods (e.g., toString, valueOf) during merging. If user-controlled input supplies these keys with non-function values, the merged object can break and throw a TypeError...

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 —...

PT-2026-50839

Name of the Vulnerable Software and Affected Versions ts-deepmerge versions prior to 8.0.0 Description An uncaught exception occurs due to improper handling of built-in Object.prototype methods, such as toString and valueOf. When user-controlled input contains these keys with non-function values,...

org.webjars.npm:dash0__sdk-web (0.18.4), org.webjars.npm:scalar__import (>=0.3.16, <=0.4.6) +3 more potentially affected by CVE-2026-12644 via org.webjars.npm:ts-deepmerge (7.0.3)

org.webjars.npm:ts-deepmerge MAVEN version 7.0.3 is affected by a known vulnerability. The following packages have a transitive dependency on org.webjars.npm:ts-deepmerge and may be impacted: - org.webjars.npm:dash0sdk-web 0.18.4 - org.webjars.npm:scalarimport =0.3.16, =0.2.107, =1.1.13, =0.1.30,...

Uncaught Exception

Overview ts-deepmerge is an a deep merge function that automatically infers the return type based on your input, without mutating the source objects. Affected versions of this package are vulnerable to Uncaught Exception due to the improper handling of built-in Object.prototype methods such as...

@theecryptochad/merge-guard has Prototype Pollution in its deepMerge() function

Summary @theecryptochad/merge-guard versions prior to 1.0.1 are vulnerable to Prototype Pollution via the deepMerge function. An attacker who controls the source object can inject proto keys that mutate Object.prototype, affecting all objects in the Node.js runtime. Details The deepMerge function...