Wallos is an open-source, self-hostable personal subscription tracker. Prior to version 4.9.6, Admin-configured OIDC tokenurl and userinfourl in includes/oidc/handleoidccallback.php:18-49 are used directly in curlinit() with zero SSRF filtering. Unlike logo/webhook URLs which have validatewebhookurlforssrf(), 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.
{
"cwe_ids": [
"CWE-918"
],
"osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/61xxx/CVE-2026-61640.json",
"cna_assigner": "GitHub_M"
}