Findings

CVE-2025-13465

The _.unset and _.omit functions in Lodash are vulnerable to prototype pollution.

Published Jan 21, 2026 · updated Oct 15, 2026 · lodash lodash

The _.unset and _.omit functions in Lodash are vulnerable to prototype pollution. 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. The issue is patched from 4.17.23 to 4.18.0 depending on the package: lodash, lodash-es, and lodash-amd in 4.17.23, and the standalone lodash.unset and lodash.omit packages in 4.18.0.

Timeline

Detection, updates, and resolution for this record.

  1. Jan 21, 2026 · NIST NVD

    Detected

    The _.unset and _.omit functions in Lodash are vulnerable to prototype pollution. 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. The issue is patched from 4.17.23 to 4.18.0 depending on the package: lodash, lodash-es, and lodash-amd in 4.17.23, and the s

  2. Oct 15, 2026 · NIST NVD

    Updated

    The _.unset and _.omit functions in Lodash are vulnerable to prototype pollution. 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. The issue is patched from 4.17.23 to 4.18.0 depending on the package: lodash, lodash-es, and lodash-amd in 4.17.23, and the s

Affected

  • cpe lodash/lodashversion unspecified

Sources

  • CVE.orgCVE-2025-13465

    Official CVE identifier

    cve.org
  • NIST NVDCVE-2025-13465

    The _.unset and _.omit functions in Lodash are vulnerable to prototype pollution. 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. The i

    nvd.nist.gov

References