CVE-2025-54803

Summary

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.

Affected Software

Weaknesses

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

ADP Enrichment

CISA ADP Vulnrichment

• SSVC:
• Exploitation: poc
  • Automatable: yes
  • Technical Impact: partial

Additional References

• https://gist.github.com/siunam321/f3dc4d21a5a932c67b6c11d0026f5afc

References

• https://github.com/sunnyadn/js-toml/security/advisories/GHSA-65fc-cr5f-v7r2
• https://github.com/sunnyadn/js-toml/commit/b125910a3f094b744c9c3571360d4b9e3a472f66
• https://gist.github.com/siunam321/f3dc4d21a5a932c67b6c11d0026f5afc

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