CVE-2026-41687: fallo de gravedad media en ellite Wallos
Wallos: SSRF CGNAT Bypass in subscription/payments Logo URL — is_cgnat_ip() Not Used in Inline Checks
Publicada el
Aviso por correo cuando entre en el KEV, tenga PoC pública o suba de nota.
13Vexday Risk Score
Sin señal de explotación. Ningún artefacto público de explotación conocido hasta ahora.
ssvc Trackcvss 4.3epss 0.2%
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.
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N
Productos afectados
ellite · WallosCVEs relacionadas — ellite Wallos
En el mismo producto, de las más peligrosas a las menos.
CVE-2026-30828HIGHWallos: SSRF via url parameter leading to File TraversalEPSS 0.6%CVE-2026-54600HIGHWallos: Unauthenticated database replacement via import endpoint on fresh installEPSS 0.6%CVE-2026-61640HIGHWallos: SSRF via OIDC Token/UserInfo URL ConfigurationEPSS 0.5%CVE-2026-61641HIGHWallos: OIDC account takeover via email-based account linking without `email_verified` checkEPSS 0.5%CVE-2026-30840HIGHWallos: Server-Side Request Forgery (SSRF) in Notification TestersEPSS 0.5%CVE-2026-61639HIGHWallos: Zip Slip path traversal in database restore writes files to webrootEPSS 0.5%