CVE-2026-61834

MEDIUM 4.3

scim-patch: Mutation of Inherited Built-in Method Objects

CVSS Score

4.3

EPSS Score

0.0%

EPSS Percentile

0th

scim-patch is a library for applying SCIM patch operations. Prior to 0.9.2, navigate() reads inherited properties and assign() uses prototype-chain membership checks while resolving attacker-controlled SCIM PATCH paths. A path or one of the dotted value keys beginning with an inherited property such as toString can therefore traverse into a shared built-in function object and add attacker-controlled properties, causing process-global mutation that may affect application logic reading inherited-method properties. This issue is fixed in version 0.9.2.

CWE	CWE-915 CWE-1321
Vendor	thomaspoignant
Product	scim-patch
Published	Sep 23, 2026
Last Updated	Sep 23, 2026

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CVSS v3 Breakdown

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N

Attack Vector

Network

Attack Complexity

Low

Privileges Required

Low

User Interaction

None

Scope

Unchanged

Confidentiality

None

Integrity

Low

Availability

None

Affected Versions

thomaspoignant / scim-patch

< 0.9.2

References

NVD ↗ CVE.org ↗ EPSS Data ↗

github.com: https://github.com/thomaspoignant/scim-patch/security/advisories/GHSA-2mhw-wcx5-v3xj github.com: https://github.com/thomaspoignant/scim-patch/pull/1127 github.com: https://github.com/thomaspoignant/scim-patch/commit/c86474f7a9b16191d939f59ba94eca6c6e63044b github.com: https://github.com/thomaspoignant/scim-patch/releases/tag/v0.9.2