Fluid Attacks Database

Description

canvg Prototype Pollution vulnerability 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.

Mitigation

Update Impact

Minimal update. May introduce new vulnerabilities or breaking changes.

Ecosystem	Component	Affected version	Patched versions
npm	canvg	>=4.0.0 <4.0.3 \|\| >=0 <3.0.11	4.0.3, 3.0.11
debian 12	znuny	=6.3.2-3 \|\| =6.3.3-1 \|\| =6.3.3-1~bpo11+1 \|\| =6.3.4-1 \|\| =6.3.4-1~bpo11+1 \|\| =6.4.2-1 \|\| =6.4.2-1~bpo11+1 \|\| =6.4.2-2 \|\| =6.4.3-1 \|\| =6.4.3-1~bpo11+1 \|\| =6.4.4-1 \|\| =6.4.5-1 \|\| =6.4.5-1~bpo11+1 \|\| =6.4.5-2 \|\| =6.5.1-1 \|\| =6.5.10-1 \|\| =6.5.10-1~bpo12+1 \|\| =6.5.11-1 \|\| =6.5.11-1~bpo12+1 \|\| =6.5.13-1 \|\| =6.5.14-1 \|\| =6.5.14-1~bpo12+1 \|\| =6.5.15-1 \|\| =6.5.15-2 \|\| =6.5.15-2~bpo12+1 \|\| =6.5.16-1 \|\| =6.5.18-1 \|\| =6.5.18-1~bpo13+1 \|\| =6.5.19-1 \|\| =6.5.20-1 \|\| =6.5.21-1 \|\| =6.5.22-1 \|\| =6.5.22-1~bpo13+1 \|\| =6.5.23-1 \|\| =6.5.23-1~bpo13+1 \|\| =6.5.24-1 \|\| =6.5.24-1~bpo13+1 \|\| =6.5.3-1 \|\| =6.5.3-1~bpo12+1 \|\| =6.5.4-1 \|\| =6.5.4-1~bpo12+1 \|\| =6.5.5-1 \|\| =6.5.5-1~bpo12+1 \|\| =6.5.6-1 \|\| =6.5.6-1~bpo12+1 \|\| =6.5.8-1 \|\| =6.5.8-1~bpo12+1 \|\| =6.5.9-1 \|\| =6.5.9-1~bpo12+1	-
debian 13	znuny	=6.3.2-3 \|\| =6.3.3-1 \|\| =6.3.3-1~bpo11+1 \|\| =6.3.4-1 \|\| =6.3.4-1~bpo11+1 \|\| =6.4.2-1 \|\| =6.4.2-1~bpo11+1 \|\| =6.4.2-2 \|\| =6.4.3-1 \|\| =6.4.3-1~bpo11+1 \|\| =6.4.4-1 \|\| =6.4.5-1 \|\| =6.4.5-1~bpo11+1 \|\| =6.4.5-2 \|\| =6.5.1-1 \|\| =6.5.10-1 \|\| =6.5.10-1~bpo12+1 \|\| =6.5.11-1 \|\| =6.5.11-1~bpo12+1 \|\| =6.5.13-1 \|\| =6.5.14-1 \|\| =6.5.14-1~bpo12+1 \|\| =6.5.15-1 \|\| =6.5.15-2 \|\| =6.5.15-2~bpo12+1 \|\| =6.5.16-1 \|\| =6.5.18-1 \|\| =6.5.18-1~bpo13+1 \|\| =6.5.19-1 \|\| =6.5.20-1 \|\| =6.5.21-1 \|\| =6.5.22-1 \|\| =6.5.22-1~bpo13+1 \|\| =6.5.23-1 \|\| =6.5.23-1~bpo13+1 \|\| =6.5.24-1 \|\| =6.5.24-1~bpo13+1 \|\| =6.5.3-1 \|\| =6.5.3-1~bpo12+1 \|\| =6.5.4-1 \|\| =6.5.4-1~bpo12+1 \|\| =6.5.5-1 \|\| =6.5.5-1~bpo12+1 \|\| =6.5.6-1 \|\| =6.5.6-1~bpo12+1 \|\| =6.5.8-1 \|\| =6.5.8-1~bpo12+1 \|\| =6.5.9-1 \|\| =6.5.9-1~bpo12+1	-
debian 14	znuny	=6.3.2-3 \|\| =6.3.3-1 \|\| =6.3.3-1~bpo11+1 \|\| =6.3.4-1 \|\| =6.3.4-1~bpo11+1 \|\| =6.4.2-1 \|\| =6.4.2-1~bpo11+1 \|\| =6.4.2-2 \|\| =6.4.3-1 \|\| =6.4.3-1~bpo11+1 \|\| =6.4.4-1 \|\| =6.4.5-1 \|\| =6.4.5-1~bpo11+1 \|\| =6.4.5-2 \|\| =6.5.1-1 \|\| =6.5.10-1 \|\| =6.5.10-1~bpo12+1 \|\| =6.5.11-1 \|\| =6.5.11-1~bpo12+1 \|\| =6.5.13-1 \|\| =6.5.14-1 \|\| =6.5.14-1~bpo12+1 \|\| =6.5.15-1 \|\| =6.5.15-2 \|\| =6.5.15-2~bpo12+1 \|\| =6.5.16-1 \|\| =6.5.18-1 \|\| =6.5.18-1~bpo13+1 \|\| =6.5.19-1 \|\| =6.5.20-1 \|\| =6.5.21-1 \|\| =6.5.22-1 \|\| =6.5.22-1~bpo13+1 \|\| =6.5.23-1 \|\| =6.5.23-1~bpo13+1 \|\| =6.5.24-1~bpo13+1 \|\| =6.5.3-1 \|\| =6.5.3-1~bpo12+1 \|\| =6.5.4-1 \|\| =6.5.4-1~bpo12+1 \|\| =6.5.5-1 \|\| =6.5.5-1~bpo12+1 \|\| =6.5.6-1 \|\| =6.5.6-1~bpo12+1 \|\| =6.5.8-1 \|\| =6.5.8-1~bpo12+1 \|\| =6.5.9-1 \|\| =6.5.9-1~bpo12+1 \|\| >=0 <6.5.24-1	6.5.24-1

Aliases

1. CVE-2025-259772. NVD-2025-259773. OSV-2025-259774. OSV-DEBIAN-2025-259775. GCVE-2025-259776. SECURITY-TRACKER-CVE-2025-25977

References

1. https://github.com/canvg/canvg/issues/17492. https://github.com/canvg/canvg/commit/c3743e6345f3e01aefdcdd412c3f26494f4b5d7d3. https://github.com/canvg/canvg/blob/937668eced93e0335c67a255d0d2277ea708b2cb/src/Document/StyleElement.ts

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