Linux Distros Unpatched Vulnerability : CVE-2026-73212

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. Prior to 4.13.1, goodpeeraddr in src/server/nsturnserver.c uses ioaaddrinrange in...

CVE-2026-65981

A flaw was found in Coturn, an open-source implementation of TURN and STUN servers. An authenticated attacker who obtains a victim's MOBILITY-TICKET can exploit this vulnerability during a session resume. This allows the attacker to take over the victim's TURN Traversal Using Relays around NAT...

CVE-2026-73216

Coturn is a free open source implementation of TURN and STUN Server. Prior to 4.17.0, shutdownclientconnection in src/server/nsturnserver.c prematurely calls decquota and releases bandwidth accounting during the first-stage close of a mobility-enabled allocation while preserving the allocation,...

CVE-2026-73213

Coturn is a free open source implementation of TURN and STUN Server. Prior to 4.16.0, addrlesseq in src/client/nsturnioaddr.c uses a component-wise comparison for native IPv6 min-max intervals in ioaaddrinrange, allowing an authenticated TURN client to relay to an IPv6 peer that is numerically...

CVE-2026-73216

Coturn is a free open source implementation of TURN and STUN Server. Prior to 4.17.0, shutdownclientconnection in src/server/nsturnserver.c prematurely calls decquota and releases bandwidth accounting during the first-stage close of a mobility-enabled allocation while preserving the allocation,...

CVE-2026-73213

Coturn is a free open source implementation of TURN and STUN Server. Prior to 4.16.0, addrlesseq in src/client/nsturnioaddr.c uses a component-wise comparison for native IPv6 min-max intervals in ioaaddrinrange, allowing an authenticated TURN client to relay to an IPv6 peer that is numerically...

UBUNTU-CVE-2026-73212

Coturn is a free open source implementation of TURN and STUN Server. Prior to 4.13.1, goodpeeraddr in src/server/nsturnserver.c uses ioaaddrinrange in src/client/nsturnioaddr.c without canonicalizing IPv4-compatible, 6to4, and 64:ff9b::/96 NAT64 address forms, allowing an authenticated RFC 6062 T...

UBUNTU-CVE-2026-73215

Coturn is a free open source implementation of TURN and STUN Server. Prior to 4.17.0, turnportsallocateeven in src/apps/relay/turnports.c marks the unused odd sibling port as TPSTAKENODD for an EVEN-PORT Allocate request with reservation bit R=0 even though no RTCP socket will release it, allowin...

UBUNTU-CVE-2026-73213

Coturn is a free open source implementation of TURN and STUN Server. Prior to 4.16.0, addrlesseq in src/client/nsturnioaddr.c uses a component-wise comparison for native IPv6 min-max intervals in ioaaddrinrange, allowing an authenticated TURN client to relay to an IPv6 peer that is numerically...

CVE-2026-73216

Coturn is a free open source implementation of TURN and STUN Server. Prior to 4.17.0, shutdownclientconnection in src/server/nsturnserver.c prematurely calls decquota and releases bandwidth accounting during the first-stage close of a mobility-enabled allocation while preserving the allocation,...

CVE-2026-73215 The coturn server can end in a state where it does not accept more requests with "even-port" enabled.

Coturn is a free open source implementation of TURN and STUN Server. Prior to 4.17.0, turnportsallocateeven in src/apps/relay/turnports.c marks the unused odd sibling port as TPSTAKENODD for an EVEN-PORT Allocate request with reservation bit R=0 even though no RTCP socket will release it, allowin...

CVE-2026-73215

Coturn is a free open source implementation of TURN and STUN Server. Prior to 4.17.0, turnportsallocateeven in src/apps/relay/turnports.c marks the unused odd sibling port as TPSTAKENODD for an EVEN-PORT Allocate request with reservation bit R=0 even though no RTCP socket will release it, allowin...

CVE-2026-73214

Coturn is a free open source implementation of TURN and STUN Server. Prior to 4.16.0, dtlsserverinputhandler and createnewconnectedudpsocket in src/apps/relay/dtlslistener.c retain OpenSSL dtls1reassemblefragment state for a 35-byte fragmented ClientHello declaring a 650,000-byte handshake before...

EUVD-2026-56819

Coturn is a free open source implementation of TURN and STUN Server. Prior to 4.16.0, addrlesseq in src/client/nsturnioaddr.c uses a component-wise comparison for native IPv6 min-max intervals in ioaaddrinrange, allowing an authenticated TURN client to relay to an IPv6 peer that is numerically...

CVE-2026-73213 Coturn: `addr_less_eq()` does a component-wise IPv6 comparison instead of a lexicographic one, letting an authenticated TURN client bypass `denied-peer-ip`/`allowed-peer-ip` IPv6 ranges (TURN-specific SSRF)

Coturn is a free open source implementation of TURN and STUN Server. Prior to 4.16.0, addrlesseq in src/client/nsturnioaddr.c uses a component-wise comparison for native IPv6 min-max intervals in ioaaddrinrange, allowing an authenticated TURN client to relay to an IPv6 peer that is numerically...

CVE-2026-73213

CVE-2026-73213 affects the Coturn TURN/STUN server. Prior to 4.16.0, addr_less_eq() used a component-wise IPv6 comparison in ioa_addr_in_range(), allowing an authenticated TURN client to relay to an IPv6 peer that is numerically within a configured denied-peer-ip range but classified as outside i...

CVE-2026-73213

Coturn is a free open source implementation of TURN and STUN Server. Prior to 4.16.0, addrlesseq in src/client/nsturnioaddr.c uses a component-wise comparison for native IPv6 min-max intervals in ioaaddrinrange, allowing an authenticated TURN client to relay to an IPv6 peer that is numerically...

CVE-2026-73212

Coturn (TURN/STUN server) vulnerability CVE-2026-73212: The function good_peer_addr() in src/server/ns_turn_server.c fails to canonicalize IPv4-compatible, 6to4, and 64:ff9b::/96 NAT64 address forms via ioa_addr_in_range() in src/client/ns_turn_ioaddr.c. This can let an authenticated RFC 6062 TCP...

CVE-2026-73212 coturn peer-IP ACL canonicalization & scope bypass on the RFC 6062 TCP CONNECT relay path → internal-network SSRF and proven internal root RCE

Coturn is a free open source implementation of TURN and STUN Server. Prior to 4.13.1, goodpeeraddr in src/server/nsturnserver.c uses ioaaddrinrange in src/client/nsturnioaddr.c without canonicalizing IPv4-compatible, 6to4, and 64:ff9b::/96 NAT64 address forms, allowing an authenticated RFC 6062 T...

CVE-2026-73213: Incorrect Authorization

Coturn is a free open source implementation of TURN and STUN Server. Prior to 4.16.0, addrlesseq in src/client/nsturnioaddr.c uses a component-wise comparison for native IPv6 min-max intervals in ioaaddrinrange, allowing an authenticated TURN client to relay to an IPv6 peer that is numerically...