Satori-generated SVG has improper escaping
35Vexday Risk Score
No sign of exploitation. It has a public proof of concept.
ssvc Attendcvss 5.3epss 0.8%
from disclosure to weapon0 days
Published on NVDSep 30
1st PoCSep 23
exploitation probability
0.8%top 45% of all CVEs
observed exploitation
nono source reports it
5 public exploit(s)
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.
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
public PoCs found — 5
githubgithub.com/EQSTLab/CVE-2026-94545★ 45githubgithub.com/HORKimhab/CVE-2026-94545★ 1githubgithub.com/Hassham1/CVE-2026-94545-nextjs-og-poc★ 1githubgithub.com/mhtsec/CVE-2026-94545★ 1githubgithub.com/MRdark-ops/CVE-2026-94545-★ 1⚠ Public resources, to assess the exposure of systems you control or are authorized to test. Test only with authorization.
References
https://github.com/vercel/next.js/commit/868fad38690d72088868f299fa2bef339b26838ehttps://github.com/vercel/next.js/releases/tag/v16.3.6https://github.com/vercel/next.js/security/advisories/GHSA-vcvr-r3jv-pc5jhttps://github.com/vercel/satori/commit/26a52affc031216fee5882b6e965c8dbc7ac1782https://github.com/vercel/satori/pull/814https://github.com/vercel/satori/security/advisories/GHSA-wx4j-mvgx-mqwp