CVE-2026-94545 PUBLISHED

Satori-generated SVG has improper escaping

Assigner: GitHub_M
Reserved: 21.09.2026 Published: 30.09.2026 Updated: 30.09.2026

Satori is a library to convert HTML and CSS to SVG. Starting in version 0.0.27 and prior to version 0.33.5, Satori does not properly escape certain values before including them in generated SVG output. This can allow crafted values to be interpreted as SVG markup. The impact depends on how the generated SVG is consumed. Version 0.33.5 contains a patch. No complete workaround exists besides upgrading. Applications that cannot immediately upgrade should not render attacker-controlled content with Satori.

Metrics

CVSS Vector: CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:P/VC:N/VI:N/VA:N/SC:H/SI:H/SA:N
CVSS Score: 5.3

Product Status

Vendor vercel
Product satori
Versions
  • Version >= 0.0.27, < 0.33.5 is affected
Vendor vercel
Product next
Versions
  • Version >= 16.2.0, < 16.3.6 is affected

References

Problem Types

  • CWE-116: Improper Encoding or Escaping of Output CWE