{"cve":"CVE-2026-27567","nvd":{"published":"2026-02-24T15:21:38.273","modified":"2026-06-17T10:27:19.293","status":"Analyzed","description":"Payload is a free and open source headless content management system. Prior to 3.75.0, a Server-Side Request Forgery (SSRF) vulnerability exists in Payload's external file upload functionality. When processing external URLs for file uploads, insufficient validation of HTTP redirects could allow an authenticated attacker to access internal network resources. The Payload environment must have at least one collection with `upload` enabled and a user who has `create` access to that upload-enabled collection in order to be vulnerable. An authenticated user with upload collection write permissions could potentially access internal services. Response content from internal services could be retrieved through the application. This vulnerability has been patched in v3.75.0. As a workaround, one may mitigate this vulnerability by disabling external file uploads via the `disableExternalFile` upload collection option, or by restricting `create` access on upload-enabled collections to trusted users only.","cvss_v4":null,"cvss_v3":{"version":"3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:C/C:L/I:L/A:N","score":4.8},"cwes":["CWE-918"],"references":["https://github.com/payloadcms/payload/commit/1041bb6","https://github.com/payloadcms/payload/releases/tag/v3.75.0","https://github.com/payloadcms/payload/security/advisories/GHSA-hhfx-5x8j-f5f6"],"products":["payloadcms:payload"],"source":"nvd","synced_at":"2026-10-19T22:24:17.937441719+00:00"},"epss":{"cve":"CVE-2026-27567","score":0.00335,"percentile":0.26945,"date":"2026-10-31"},"kev":null,"osv":[{"id":"GHSA-hhfx-5x8j-f5f6","url":"https://osv.dev/vulnerability/GHSA-hhfx-5x8j-f5f6","summary":"Payload: Server-Side Request Forgery (SSRF) in External File URL Uploads","modified":"2026-02-24T20:26:19.782231Z","packages":[{"ecosystem":"npm","name":"payload","purl":"pkg:npm/payload","ranges":["<3.75.0"],"fixed":["3.75.0"]}]}],"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."]}