Medium (5.3) in deep-object-diff project deep-object-diff. EPSS 0.8% chance of exploitation in the next 30 days. Fixed in deep-object-diff 1.1.9.
deep-object-diff version 1.1.0 allows an external attacker to edit or add new properties to an object. This is possible because the application does not properly validate incoming JSON keys, thus allowing the '__proto__' property to be edited.
Severity
CVSS 3.1
5.3 medium
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N
EPSS
0.8% chance of exploitation in the next 30 days; higher than 57% of CVEs (scores of 2026-10-31)