CVE-2026-94545
Satori-generated SVG has improper escaping
- Published
- Updated
- Reserved
- Assigned by
- GitHub_M
Description
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.
Scores
| Scored by | CVSS | Score | Vector |
|---|---|---|---|
| GitHub_MCNA (assigner) | 4.0 | Medium5.3 | 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 |
| NVDNVD · Deferred | 4.0 | Medium5.3 | 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/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X |
- EPSS (exploitation in 30 days)
- 1.1% · top 35% of all CVEs (6 Nov 2026)
- CISA SSVC
- Exploitation: none · Automatable: no · Technical impact: partial
The list uses the assigner's score when there is one, then CISA's, then NVD's: Medium 5.3.
Weakness
Affected products
Affected packages
From reviewed advisories of the GitHub Advisory Database.
References (6)
- https://github.com/vercel/satori/security/advisories/GHSA-wx4j-mvgx-mqwp (opens in a new tab)x_refsource_CONFIRM
- https://github.com/vercel/next.js/security/advisories/GHSA-vcvr-r3jv-pc5j (opens in a new tab)x_refsource_MISC
- https://github.com/vercel/satori/pull/814 (opens in a new tab)x_refsource_MISC
- https://github.com/vercel/next.js/commit/868fad38690d72088868f299fa2bef339b26838e (opens in a new tab)x_refsource_MISC
- https://github.com/vercel/satori/commit/26a52affc031216fee5882b6e965c8dbc7ac1782 (opens in a new tab)x_refsource_MISC
- https://github.com/vercel/next.js/releases/tag/v16.3.6 (opens in a new tab)x_refsource_MISC
Sources
The same CVE in the primary databases and aggregators, to check against.
- CVE.org record (opens in a new tab)
- CVE List JSON (GitHub) (opens in a new tab)
- NVD (opens in a new tab)
- FIRST EPSS (opens in a new tab)
- OSV.dev (opens in a new tab)
- GitHub Advisory GHSA-wx4j-mvgx-mqwp (opens in a new tab)
- CIRCL Vulnerability-Lookup (opens in a new tab)
Badge for a README or a ticket
[](https://trackcve.app/cve/CVE-2026-94545)Record last updated .