CVE-2025-13465

Description

Lodash versions 4.0.0 through 4.17.22 are vulnerable to prototype pollution in the _.unset and _.omit functions. An attacker can pass crafted paths which cause Lodash to delete methods from global prototypes. The issue permits deletion of properties but does not allow overwriting their original behavior. This issue is patched on 4.17.23

CVSS Metrics

• v4.0•MEDIUM•Score: 6.9CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:L/VA:L/SC:H/SI:H/SA:H/E:P
• v4.0•MEDIUM•Score: 6.9CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:L/VA:L/SC:H/SI:H/SA:H/E:P/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
• v3.1•MEDIUM•Score: 5.3CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N
• v3.1•MEDIUM•Score: 6.5CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:L

EPSS Trends

Current EPSS score: 0.03%• Percentile: 8%

Techniques & Countermeasures

• CWE-1321•Improperly Controlled Modification of Object Prototype Attributes ('Prototype Pollution')

  The product receives input from an upstream component that specifies attributes that are to be initialized or updated in an object, but it does not properly control modifications of attributes of the object prototype.

Affected Systems

• lodash-amd•lodash-amd

  ≥ 4.0.0, ≤ 4.17.22

• lodash-es•lodash-es

  ≥ 4.0.0, ≤ 4.17.22

• lodash•lodash

  ≥ 4.0.0, ≤ 4.17.22 | ≥ 4.0.0, < 4.17.23

• lodash.unset•lodash.unset

  4.0.0

• Npm•lodash

  ≥ 4.0.0, < 4.17.23

• Npm•lodash-amd

  ≥ 4.0.0, < 4.17.23

• Npm•lodash-es

  ≥ 4.0.0, < 4.17.23

• Npm•lodash.unset

  ≥ 4.0.0, ≤ 4.5.2

References (5)

• https://github.com/lodash/lodash/security/advisories/GHSA-xxjr-mmjv-4gpg
• https://nvd.nist.gov/vuln/detail/CVE-2025-13465
• https://github.com/lodash/lodash/commit/edadd452146f7e4bad4ea684e955708931d84d81
• https://github.com/lodash/lodash
• https://cert-portal.siemens.com/productcert/html/ssa-253495.html