GitHub Advisoryadvisory · npm
GHSA-v2mw-5mch-w8c5 canvg Prototype Pollution vulnerability
HIGH
Official page ↗
- Aliases
- CVE-2025-25977
- Ecosystem
- npm
- Packages
- canvg
- Severity
- High
- CVSS vector
- CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:P
- Weaknesses
- CWE-1321
- Reviewed
- 2025-03-12
Affected packages
• npm canvg: >= 4.0.0, < 4.0.3 → fixed in 4.0.3
• npm canvg: < 3.0.11 → fixed in 3.0.11
Description
An issue in canvg prior to v.4.0.3 and v3.0.11 can lead to prototype pollution via the Constructor of the class StyleElement.
Related
Alias · CVE (1)
- CVE-2025-25977 An issue in canvg v.4.0.2 allows an attacker to execute arbitrary code via the Constructor of the class StyleElement. vulnerability
Weakness · CWE (1)
- CWE-1321 Improperly Controlled Modification of Object Prototype Attributes weakness
References
- https://nvd.nist.gov/vuln/detail/CVE-2025-25977 advisory
- https://github.com/canvg/canvg/issues/1749 web
- https://github.com/canvg/canvg/commit/c3743e6345f3e01aefdcdd412c3f26494f4b5d7d web
- https://github.com/canvg/canvg package
- https://github.com/canvg/canvg/blob/937668eced93e0335c67a255d0d2277ea708b2cb/src/Document/StyleElement.ts web