vercel/satori · Security
Satori-generated SVG has improper escaping
- GHSA ID
- GHSA-wx4j-mvgx-mqwp
- CVE ID
- CVE-2026-94545
- Severity
- medium
- Published
- Updated
- CVSS v4
- 5.3 · 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
Description
Impact
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.
Workaround
No complete workaround exists besides upgrading. Applications that cannot immediately upgrade should not render attacker-controlled content with Satori.
CWEs
- CWE-116 · Improper Encoding or Escaping of Output
References
- https://github.com/vercel/next.js/security/advisories/GHSA-vcvr-r3jv-pc5j ↗
- https://github.com/vercel/satori/security/advisories/GHSA-wx4j-mvgx-mqwp ↗
- https://nvd.nist.gov/vuln/detail/CVE-2026-94545 ↗
- https://github.com/vercel/satori/pull/814 ↗
- https://github.com/vercel/next.js/commit/868fad38690d72088868f299fa2bef339b26838e ↗
- https://github.com/vercel/satori/commit/26a52affc031216fee5882b6e965c8dbc7ac1782 ↗
- https://github.com/vercel/next.js/releases/tag/v16.3.6 ↗
- https://github.com/advisories/GHSA-wx4j-mvgx-mqwp ↗