{"cve":"CVE-2026-14620","nvd":{"published":"2026-07-03T17:16:53.620","modified":"2026-07-07T15:12:43.947","status":"Analyzed","description":"webpack-dev-server versions 5.2.5 and earlier expose two internal developer endpoints, /webpack-dev-server/open-editor and /webpack-dev-server/invalidate, that perform state-changing actions on any GET request without verifying that the request originated from the dev server's own page. Any website a developer visits while the dev server is running can trigger these endpoints cross-origin with no interaction beyond the visit. An attacker can open an arbitrary existing local file in the developer's editor, including files outside the project root, and repeated requests can spawn editor processes and force recompilations that degrade the developer's machine. Patches: upgrade to webpack-dev-server 5.2.6. Workarounds: none.","cvss_v4":null,"cvss_v3":{"version":"3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:N/I:N/A:L","score":4.7},"cwes":["CWE-352","CWE-749"],"references":["https://cna.openjsf.org/security-advisories.html","https://github.com/webpack/webpack-dev-server/security/advisories/GHSA-f5vj-f2hx-8m93"],"products":["webpack.js:webpack-dev-server"],"source":"nvd","synced_at":"2026-10-19T22:42:16.820116992+00:00"},"epss":{"cve":"CVE-2026-14620","score":0.00521,"percentile":0.44254,"date":"2026-11-01"},"kev":null,"osv":[{"id":"GHSA-f5vj-f2hx-8m93","url":"https://osv.dev/vulnerability/GHSA-f5vj-f2hx-8m93","summary":"webpack-dev-server vulnerable to cross-site request forgery via internal developer endpoints","modified":"2026-09-10T03:50:51.837057467Z","packages":[{"ecosystem":"npm","name":"webpack-dev-server","purl":"pkg:npm/webpack-dev-server","ranges":["<5.2.6"],"fixed":["5.2.6"]}]}],"attribution":["This product uses the NVD API but is not endorsed or certified by the NVD.","EPSS scores: FIRST Exploit Prediction Scoring System, https://www.first.org/epss","Known exploited vulnerabilities: CISA Known Exploited Vulnerabilities Catalog, https://www.cisa.gov/known-exploited-vulnerabilities-catalog","Package advisories: OSV (https://osv.dev), from the GitHub Advisory Database, PyPA, Go, RustSec and other ecosystem databases, under CC-BY 4.0 or CC0","CVE records: the CVE Program's CVE List (https://www.cve.org), under its terms of use (https://www.cve.org/Legal/TermsOfUse). CVE is a registered trademark of The MITRE Corporation; this product is not affiliated with the CVE Program."]}