CVE-2026-33480: Server-Side Request Forgery (SSRF)

WWBN AVideo is an open source video platform. In versions up to and including 26.0, the isSSRFSafeURL function in AVideo can be bypassed using IPv4-mapped IPv6 addresses ::ffff:x.x.x.x. The unauthenticated plugin/LiveLinks/proxy.php endpoint uses this function to validate URLs before fetching the...

Advisory ROSA-SA-2026-3254

software: coturn 4.5.2 OS: ROSA-CHROME unaffected versions = coturn-4.5.2-6 affected versions coturn-4.5.2-6 CVE-ID: CVE-2026-27624 BDU-ID: None CVE-Crit: HIGH CVE-DESC.: A vulnerability in Coturn allows a remote attacker to bypass loopback and internal IP range locking denied-peer-ip option and...

GHSA-P3GR-G84W-G8HH AVideo has a SSRF Protection Bypass via IPv4-Mapped IPv6 Addresses in Unauthenticated LiveLinks Proxy

Summary The isSSRFSafeURL function in AVideo can be bypassed using IPv4-mapped IPv6 addresses ::ffff:x.x.x.x. The unauthenticated plugin/LiveLinks/proxy.php endpoint uses this function to validate URLs before fetching them with curl, but the IPv4-mapped IPv6 prefix passes all checks, allowing an...

Server-side Request Forgery (SSRF)

Overview wwbn/avideo is an Audio and Video Platform or simply "A Video Platform". Affected versions of this package are vulnerable to Server-side Request Forgery SSRF via the isSSRFSafeURL function in the unauthenticated plugin/LiveLinks/proxy.php endpoint. An attacker can access internal network...

PT-2026-26767

Summary The isSSRFSafeURL function in AVideo can be bypassed using IPv4-mapped IPv6 addresses ::ffff:x.x.x.x. The unauthenticated plugin/LiveLinks/proxy.php endpoint uses this function to validate URLs before fetching them with curl, but the IPv4-mapped IPv6 prefix passes all checks, allowing an...

Mattermost fails to canonicalize IPv4-mapped IPv6 addresses before reserved IP validation

Mattermost versions 11.3.x = 11.3.0, 11.2.x = 11.2.2, 10.11.x = 10.11.10 fail to canonicalize IPv4-mapped IPv6 addresses before reserved IP validation which allows an attacker to perform SSRF attacks against internal services via IPv4-mapped IPv6 literals e.g., ::ffff:127.0.0.1.. Mattermost...

Server-side Request Forgery (SSRF)

Overview Affected versions of this package are vulnerable to Server-side Request Forgery SSRF in the IP address validation process. An attacker can access internal network resources by submitting specially crafted IPv4-mapped IPv6 literals to bypass reserved IP checks. Remediation Upgrade...

EUVD-2026-12441

Mattermost versions 11.3.x = 11.3.0, 11.2.x = 11.2.2, 10.11.x = 10.11.10 fail to canonicalize IPv4-mapped IPv6 addresses before reserved IP validation which allows an attacker to perform SSRF attacks against internal services via IPv4-mapped IPv6 literals e.g., ::ffff:127.0.0.1.. Mattermost...

GHSA-GQV7-J2J8-QMWQ Mattermost fails to canonicalize IPv4-mapped IPv6 addresses before reserved IP validation

Mattermost versions 11.3.x = 11.3.0, 11.2.x = 11.2.2, 10.11.x = 10.11.10 fail to canonicalize IPv4-mapped IPv6 addresses before reserved IP validation which allows an attacker to perform SSRF attacks against internal services via IPv4-mapped IPv6 literals e.g., ::ffff:127.0.0.1.. Mattermost...

CVE-2026-2455

Mattermost versions 11.3.x = 11.3.0, 11.2.x = 11.2.2, 10.11.x = 10.11.10 fail to canonicalize IPv4-mapped IPv6 addresses before reserved IP validation which allows an attacker to perform SSRF attacks against internal services via IPv4-mapped IPv6 literals e.g., ::ffff:127.0.0.1.. Mattermost...

CVE-2026-2455

Mattermost versions 11.3.x = 11.3.0, 11.2.x = 11.2.2, 10.11.x = 10.11.10 fail to canonicalize IPv4-mapped IPv6 addresses before reserved IP validation which allows an attacker to perform SSRF attacks against internal services via IPv4-mapped IPv6 literals e.g., ::ffff:127.0.0.1.. Mattermost...

CVE-2026-2455 SSRF bypass via IPv4-mapped IPv6 literals

Mattermost versions 11.3.x = 11.3.0, 11.2.x = 11.2.2, 10.11.x = 10.11.10 fail to canonicalize IPv4-mapped IPv6 addresses before reserved IP validation which allows an attacker to perform SSRF attacks against internal services via IPv4-mapped IPv6 literals e.g., ::ffff:127.0.0.1.. Mattermost...

CVE-2026-2455 SSRF bypass via IPv4-mapped IPv6 literals

Mattermost versions 11.3.x = 11.3.0, 11.2.x = 11.2.2, 10.11.x = 10.11.10 fail to canonicalize IPv4-mapped IPv6 addresses before reserved IP validation which allows an attacker to perform SSRF attacks against internal services via IPv4-mapped IPv6 literals e.g., ::ffff:127.0.0.1.. Mattermost...

CVE-2026-2455: Server-Side Request Forgery (SSRF)

Mattermost versions 11.3.x = 11.3.0, 11.2.x = 11.2.2, 10.11.x = 10.11.10 fail to canonicalize IPv4-mapped IPv6 addresses before reserved IP validation which allows an attacker to perform SSRF attacks against internal services via IPv4-mapped IPv6 literals e.g., ::ffff:127.0.0.1.. Mattermost...

kernel: x86/tdx: Fix "in-kernel MMIO" check

A flaw was found in the Linux kernel. Userspace can deceive the kernel into performing MMIO Memory-Mapped IO operations in TDX Trust Domain Extensions on its behalf, allowing a VE Virtualization Exception to be incorrectly handled as a in-kernel MMIO operation...

Updated coturn packages fix security vulnerability

IPv4-mapped IPv6 ::ffff:0:0/96 bypasses denied-peer-ip ACL. CVE-2026-27624...

MGASA-2026-0051 Updated coturn packages fix security vulnerability

IPv4-mapped IPv6 ::ffff:0:0/96 bypasses denied-peer-ip ACL. CVE-2026-27624...

CVE-2026-30827

A flaw was found in express-rate-limit. The default key generator incorrectly applies IPv6 subnet masking to IPv4-mapped IPv6 addresses, which are used when an IPv4 client connects to a dual-stack server. This misconfiguration causes all IPv4 traffic to be treated as a single entity for rate...

kernel: x86/tdx: Fix "in-kernel MMIO" check

A flaw was found in the Linux kernel. Userspace can deceive the kernel into performing MMIO Memory-Mapped IO operations in TDX Trust Domain Extensions on its behalf, allowing a VE Virtualization Exception to be incorrectly handled as a in-kernel MMIO operation...

CVE-2025-41759

An administrator may attempt to block all networks by specifying "" or "all" as the network identifier. However, these values are not supported and do not trigger any validation error. Instead, they are silently interpreted as network 0 which results in no networks being blocked at all...