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CVE Vulnerability Details :

CVE-2025-55195

PUBLISHED

More Info Official Page

Assigner-GitHub_M

Assigner Org ID-a0819718-46f1-4df5-94e2-005712e83aaa

Published At-14 Aug, 2025 | 16:39

Updated At-14 Aug, 2025 | 19:18

▼CVE Numbering Authority (CNA)

@std/toml Prototype Pollution in Node.js and Browser

@std/toml is the Deno Standard Library. Prior to version 1.0.9, an attacker can pollute the prototype chain in Node.js runtime and Browser when parsing untrusted TOML data, thus achieving Prototype Pollution (PP) vulnerability. This is because the library is merging an untrusted object with an empty object, which by default the empty object has the prototype chain. This issue has been patched in version 1.0.9.

Affected Products

Vendor

denoland

Product

std

Versions

Affected

< 1.0.9

Problem Types

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

Metrics

Version	Base score	Base severity	Vector
3.1	7.3	HIGH	CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L

References

Hyperlink	Resource
https://github.com/denoland/std/security/advisories/GHSA-crjp-8r9q-2j9r	x_refsource_CONFIRM
https://github.com/denoland/std/commit/540662cfd6d71e969af292aa604ef4049dbe271b	x_refsource_MISC
https://github.com/denoland/std/releases/tag/release-2025.08.13	x_refsource_MISC

▼Authorized Data Publishers (ADP)

CISA ADP Vulnrichment

Metrics Other Info

References

Hyperlink	Resource
https://github.com/denoland/std/security/advisories/GHSA-crjp-8r9q-2j9r	exploit

Affected Products

Affected

Problem Types

Metrics

Metrics Other Info

Impacts

Solutions

Configurations

Workarounds

Exploits

Credits

Timeline

Replaced By

Rejected Reason

References

Affected Products

Metrics

Metrics Other Info

Impacts

Solutions

Configurations

Workarounds

Exploits

Credits

Timeline

Replaced By

Rejected Reason

References