CVE-2026-94545: Satori-generated SVG has improper escaping
Affects satoriSource GCVE Database
Not known to be exploited · CVSS 5.3 Medium : upgrade to 0.33.5 when convenient.
Data as of 27 Oct 2026, 15:14 UTC
- Patch
- Available – fixed in 0.33.5
CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:P/VC:N/VI:N/VA:N/SC:H/SI:H/SA:NExploitation evidence
Disclosed: evidence found.
CVE published 30 Sep 2026
Detectable: no evidence on record.
No public nuclei template indexed
Weaponised: no evidence on record.
No public exploit code indexed in Metasploit or Exploit-DB
Exploited in the wildExploited: no evidence on record.
Not in CISA KEV and no source reports exploitation
Observed by OffSeq MirageSeen by Mirage: no evidence on record.
No attack traffic recorded by OffSeq Mirage sensors
A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 26 Oct 2026.
What to do
Upgrade satori to 0.33.5.
Affected software
| Product | Affected | Fixed in |
|---|---|---|
| npmsatori | Affected
| Fixed in
|
Check your own hosts for these packages with threat-finder (opens in a new tab), our free open-source scanner.
AI-suggested
A patch is available in Satori version 0.33.5. Users should upgrade to this version to remediate the vulnerability. There is no complete workaround other than upgrading. Applications unable to upgrade immediately should avoid rendering attacker-controlled content with Satori to mitigate risk.
Description
Satori versions from 0.0.27 up to but not including 0.33.5 improperly escape certain values in generated SVG output, allowing crafted input to be interpreted as SVG markup. This vulnerability can lead to unintended SVG rendering depending on how the SVG is consumed. A fix is available in version 0.33.5. No complete workaround exists other than upgrading; applications that cannot upgrade immediately should avoid rendering attacker-controlled content with Satori.
References
- github.com/vercel/next.js/security/advisories/GHSA-vcvr-r3jv-pc5j (opens in a new tab)
- github.com/vercel/satori/security/advisories/GHSA-wx4j-mvgx-mqwp (opens in a new tab)
- nvd.nist.gov/vuln/detail/CVE-2026-94545 (opens in a new tab)
- github.com/vercel/satori/pull/814 (opens in a new tab)
- github.com/vercel/next.js/commit/868fad38690d72088868f299fa2bef339b26838e (opens in a new tab)
- github.com/vercel/satori/commit/26a52affc031216fee5882b6e965c8dbc7ac1782 (opens in a new tab)
- github.com/vercel/next.js/releases/tag/v16.3.6 (opens in a new tab)
- github.com/vercel/satori (opens in a new tab)