CVE-2025-54803

Description

js-toml is a TOML parser for JavaScript, fully compliant with the TOML 1.0.0 Spec. In versions below 1.0.2, a prototype pollution vulnerability in js-toml allows a remote attacker to add or modify properties of the global Object.prototype by parsing a maliciously crafted TOML input. This is fixed in version 1.0.2.

Reserved 2025-07-29 | Published 2025-08-05 | Updated 2025-08-05 | Assigner GitHub_M

Problem types

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

Product status

< 1.0.2
affected

References

github.com/...s-toml/security/advisories/GHSA-65fc-cr5f-v7r2

github.com/...ommit/b125910a3f094b744c9c3571360d4b9e3a472f66

gist.github.com/siunam321/f3dc4d21a5a932c67b6c11d0026f5afc

cve.org (CVE-2025-54803)

nvd.nist.gov (CVE-2025-54803)

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