5.3

CVE-2026-94545: vercel next Improper Encoding or Escaping of Output

CVSS: 5.3v4.0MediumDeferred
Published 30-09-2026Last modified 30-09-2026
Open JSON

Vulnerability summary

CVE-2026-94545 is a medium (CVSS 5.3) Improper Encoding or Escaping of Output vulnerability in vercel next. EPSS estimates a 1.04% chance of exploitation in the next 30 days, higher than 63.4% of scored vulnerabilities.

Overall risk
21/100
0100
Low · default modelHow is this calculated?
CVSS score
5.3/10
010
Medium · v4.0 (CVE.org)
EPSS score
1.04%
0%100%
Low · Change unavailable
KEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits0No public exploits recorded

Advisory lineage

Upstream 0 · Downstream 0 · Related 1
GHSA-VCVR-R3JV-PC5J

Timeline

  1. 30-09-2026
    PublishedVulnerability first disclosed.
  2. 30-09-2026
    Last modifiedVulnerability information updated.

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.

CVSS metrics

2 scores · 2 sources · 1 version

EPSS trend

Probability

1.04%

Chance of exploitation in the next 30 days

Percentile

63%

Versus all other CVEs

30-day change

Change unavailable

Change unavailable

01-10-202620-10-2026
EPSS score
1.04%

Known exploited

Compare KEV catalogs

Not in any of the 3 tracked catalogs.

Public exploits

0 found

No public exploits indexed.

Weaknesses

CWE · root cause

Affected systems

Vercel2 products
  • next≥ 16.2.0, < 16.3.6
  • satori≥ 0.0.27, < 0.33.5

1 vendor · 2 products

References

6 links