GHSA-79cf-xcqc-c78w

webpack-dev-server vulnerable to cross-origin source code exposure on non-HTTPS origins

Medium highest severity reported · also known as CVE-2026-6402

2
catalog tools match this advisory
0
ship the vulnerable code in their release binary (Go tools analyzed with govulncheck)
No
in the CISA KEV catalog
0.3%
EPSS for CVE-2026-6402, percentile 22

Catalog tools matching GHSA-79cf-xcqc-c78w

ToolVersion scannedPackageFixed inReleased binaryDeclared in or found inDispute
gatekeeper
Policy as Code
v3.23.1webpack-dev-server@4.9.3
npm
5.2.4not analyzedwebsite/yarn.lockDispute
cloudsplaining
Cloud Security
0.9.1webpack-dev-server@4.15.2
npm
5.2.4not analyzedpackage-lock.jsonDispute

Vulnerabilities are known advisories that Grype matches against the dependencies declared in each project's release source (manifests and lockfiles, including development and build dependencies). A match does not mean the tool is exploitable: the vulnerable code may be unused, test-only, or not shipped in the released binary. KEV: listed in the CISA Known Exploited Vulnerabilities catalog. EPSS: FIRST's estimated probability of exploitation in the next 30 days. Both describe the vulnerability in general, not its exploitability through this tool; a match in a workflow file refers to a GitHub Action, not to shipped code. Released binary is only analyzed for Go tools with a Linux release binary; other tools show not analyzed.

Advisory sources

GitHub advisory GHSA-79cf-xcqc-c78w · NVD CVE-2026-6402 · OSV GHSA-79cf-xcqc-c78w

Grype data sources: https://github.com/advisories/GHSA-79cf-xcqc-c78w