2.9

CVE-2025-59427: cloudflare workers-sdk

CVSS: 2.9v4.0LowDeferred
AliasesGHSA-4pfg-2mw5-f8jx
Published 19-09-2025Last modified 19-09-2025
Open JSON

Vulnerability summary

CVE-2025-59427 is a low (CVSS 2.9) vulnerability in cloudflare workers-sdk. EPSS estimates a 0.38% chance of exploitation in the next 30 days, higher than 30.9% of scored vulnerabilities.

Overall risk
12/100
0100
Low · default modelHow is this calculated?
CVSS score
2.9/10
010
Low · v4.0 (CVE.org)
EPSS score
0.38%
0%100%
Low · 0.00 pp in 30 days
KEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits0No public exploits recorded

Timeline

  1. 19-09-2025
    PublishedVulnerability first disclosed.
  2. 19-09-2025
    Last modifiedVulnerability information updated.

Description

The Cloudflare Vite plugin enables a full-featured integration between Vite and the Workers runtime. When utilising the Cloudflare Vite plugin in its default configuration, all files are exposed by the local dev server, including files in the root directory that contain secret information such as .env and .dev.vars. This vulnerability is fixed in 1.6.0.

CVSS metrics

3 scores · 3 sources · 1 version

EPSS trend

Probability

0.38%

Chance of exploitation in the next 30 days

Percentile

31%

Versus all other CVEs

30-day change

0.00 pp

From 0.38% on 20-09-2026

20-09-202620-10-2026
EPSS score
0.38%

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

@cloudflare1 product
  • vite-plugin< 1.6.0
Cloudflare1 product

2 vendors · 2 products

References

6 links