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OpenAdvisories
High · 8.5 CVE-2026-61640 EUVD-2026-68810

Wallos: SSRF via OIDC Token/UserInfo URL Configuration

Published Aug 31, 2026 · Updated Sep 2, 2026 · Assigned by GitHub_M

Description

Wallos is an open-source, self-hostable personal subscription tracker. Prior to version 4.9.6, Admin-configured OIDC token_url and user_info_url in includes/oidc/handle_oidc_callback.php:18-49 are used directly in curl_init() with zero SSRF filtering. Unlike logo/webhook URLs which have validate_webhook_url_for_ssrf(), OIDC URLs bypass all protections. Admin sets URL to http://169.254.169.254/latest/meta-data/ for cloud metadata access or internal network pivoting. This issue has been patched in version 4.9.6.

Affected products

VendorProductAffectedFixed
ellite Wallos < 4.9.6 —

References