Updated coturn packages fix security vulnerability

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

SUSE CVE-2026-27624

Coturn is a free open source implementation of TURN and STUN Server. Coturn is commonly configured to block loopback and internal ranges using "denied-peer-ip" and/or default loopback restrictions. CVE-2020-26262 addressed bypasses involving "0.0.0.0", "::1" and "::", but IPv4-mapped IPv6 is not...

Linux Distros Unpatched Vulnerability : CVE-2026-27624

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - Coturn is a free open source implementation of TURN and STUN Server. Coturn is commonly configured to block loopback and internal ranges using denied-peer-ip...

CVE-2026-27624

Coturn is a free open source implementation of TURN and STUN Server. Coturn is commonly configured to block loopback and internal ranges using "denied-peer-ip" and/or default loopback restrictions. CVE-2020-26262 addressed bypasses involving "0.0.0.0", "::1" and "::", but IPv4-mapped IPv6 is not...

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

Coturn is a free open source implementation of TURN and STUN Server. Coturn is commonly configured to block loopback and internal ranges using "denied-peer-ip" and/or default loopback restrictions. CVE-2020-26262 addressed bypasses involving "0.0.0.0", "::1" and "::", but IPv4-mapped IPv6 is not...

CVE-2026-27624

Coturn is a free open source implementation of TURN and STUN Server. Coturn is commonly configured to block loopback and internal ranges using "denied-peer-ip" and/or default loopback restrictions. CVE-2020-26262 addressed bypasses involving "0.0.0.0", "::1" and "::", but IPv4-mapped IPv6 is not...

EUVD-2026-8620

Coturn is a free open source implementation of TURN and STUN Server. Coturn is commonly configured to block loopback and internal ranges using "denied-peer-ip" and/or default loopback restrictions. CVE-2020-26262 addressed bypasses involving "0.0.0.0", "::1" and "::", but IPv4-mapped IPv6 is not...

CVE-2026-27624

Coturn is a free open source implementation of TURN and STUN Server. Coturn is commonly configured to block loopback and internal ranges using "denied-peer-ip" and/or default loopback restrictions. CVE-2020-26262 addressed bypasses involving "0.0.0.0", "::1" and "::", but IPv4-mapped IPv6 is not...

CVE-2026-27624

Coturn was vulnerable to a bypass of the IPv4-mapped IPv6 loopback/denied-peer-ip checks prior to 4.9.0. The root cause was that three functions in src/client/ns_turn_ioaddr.c did not check IN6_IS_ADDR_V4MAPPED, allowing a CreatePermission/ChannelBind with ::ffff:127.0.0.1 to bypass 127.0.0.0/8 l...

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

Coturn is a free open source implementation of TURN and STUN Server. Coturn is commonly configured to block loopback and internal ranges using "denied-peer-ip" and/or default loopback restrictions. CVE-2020-26262 addressed bypasses involving "0.0.0.0", "::1" and "::", but IPv4-mapped IPv6 is not...

PT-2026-21865

Name of the Vulnerable Software and Affected Versions Coturn versions prior to 4.9.0 Description Coturn, a free open source implementation of TURN and STUN Server, is susceptible to a bypass of loopback and internal range restrictions. Specifically, configurations using "denied-peer-ip" to block...

Updated coturn package fixes a security vulnerability

When sending a CONNECT request with the XOR-PEER-ADDRESS value of 0.0.0.0, a malicious user would be able to relay packets to the loopback interface. Additionally, when coturn is listening on IPv6, which is default, the loopback interface can also be reached by making use of either ::1 or :: as t...

coturn < 4.5.2 Loopback Bypass Vulnerability

coturn is prone to a loopback bypass vulnerability. Copyright C 2021 Greenbone Networks GmbH Some text descriptions might be excerpted from a referenced sources, and are Copyright C by the respective right holders. SPDX-License-Identifier: GPL-2.0-or-later This program is free software; you can...

DEBIAN-CVE-2020-26262

Coturn is free open source implementation of TURN and STUN Server. Coturn before version 4.5.2 by default does not allow peers to connect and relay packets to loopback addresses in the range of 127.x.x.x. However, it was observed that when sending a CONNECT request with the XOR-PEER-ADDRESS value...

Coturn 4.5.1.x Access Control Bypass

Loopback access control bypass in coturn by using 0.0.0.0, ::1 or :: as the peer address - Fixed version: 4.5.2 - Enable Security Advisory: https://github.com/EnableSecurity/advisories/tree/master/ES2021-01-coturn-access-control-bypass - Coturn Security Advisory:...