Description
Wallos is an open-source, self-hostable personal subscription tracker. Prior to version 4.8.1, the SSRF protection in endpoints/subscription/add.php (line 42) and endpoints/payments/add.php (line 40) uses an inline IP validation check (FILTER_FLAG_NO_PRIV_RANGE | FILTER_FLAG_NO_RES_RANGE) that does not block CGNAT addresses (100.64.0.0/10, RFC 6598). The includes/ssrf_helper.php file explicitly defines is_cgnat_ip() to cover this gap (used by notification endpoints), but the logo/icon URL fetching in subscription and payment endpoints performs its own inline validation that misses this range. This allows authenticated users to perform Blind SSRF to internal services in Tailscale, Carrier-Grade NAT, and other environments using 100.64.0.0/10 addresses. This issue has been patched in version 4.8.1.
INFO
Published Date :
2026-05-07T13:48:43.805Z
Last Modified :
2026-05-07T14:56:55.979Z
Source :
GitHub_M
AFFECTED PRODUCTS
The following products are affected by CVE-2026-41687 vulnerability.
| Vendors | Products |
|---|---|
| Ellite |
|
REFERENCES
Here, you will find a curated list of external links that provide in-depth information to CVE-2026-41687.
