Parse Server is an open source backend that can be deployed to any infrastructure that can run Node.js. Prior to versions 8.6.2 and 9.1.1-alpha.1, the Instagram authentication adapter allows clients to specify a custom API URL via the `apiURL` parameter in `authData`. This enables SSRF attacks and possibly authentication bypass if malicious endpoints return fake responses to validate unauthorized users. This is fixed in versions 8.6.2 and 9.1.1-alpha.1 by hardcoding the Instagram Graph API URL `https://graph.instagram.com` and ignoring client-provided `apiURL` values. No known workarounds are available.
https://github.com/parse-community/parse-server/security/advisories/GHSA-3f5f-xgrj-97pf
Published: 2025-12-16
Updated: 2026-01-02
Base Score: 6.8
Vector: CVSS2#AV:N/AC:L/Au:S/C:C/I:N/A:N
Severity: Medium
Base Score: 6.5
Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
Severity: Medium
Base Score: 8.3
Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:N/VA:N/SC:H/SI:N/SA:N
Severity: High
EPSS: 0.00109