GHSA-22JQ-VG5J-6VGG ip-address: misclassification of IPv4-mapped/NAT64 IPv6 addresses can bypass SSRF and trust-boundary checks

Summary Address6's special-property checks misclassify IPv4-mapped ::ffff:0:0/96 and NAT64 well-known 64:ff9b::/96 IPv6 addresses. These checks classify an address by its IPv6 wrapper rather than by the IPv4 address it embeds, so isLoopback, isLinkLocal, isMulticast, and isUnspecified all return...

Improper Input Validation

pion/stun is vulnerable to Improper Input Validation. The vulnerability is due to insufficient validation of malformed short XOR-MAPPED-ADDRESS attributes in XORMappedAddress.GetFromAs, which allows a remote attacker to trigger a panic by sending specially crafted STUN or ICE Binding responses...

CVE-2026-54909

pion/stun is a Go implementation of STUN. Prior to 3.1.3, XORMappedAddress.GetFromAs can panic while parsing a malformed short XOR-MAPPED-ADDRESS attribute in STUN or ICE Binding-response parsing paths, allowing remote denial of service. This issue is fixed in version 3.1.3...

UBUNTU-CVE-2026-54909

pion/stun is a Go implementation of STUN. Prior to 3.1.3, XORMappedAddress.GetFromAs can panic while parsing a malformed short XOR-MAPPED-ADDRESS attribute in STUN or ICE Binding-response parsing paths, allowing remote denial of service. This issue is fixed in version 3.1.3...

CVE-2026-54909

pion/stun is a Go implementation of STUN. Prior to 3.1.3, XORMappedAddress.GetFromAs can panic while parsing a malformed short XOR-MAPPED-ADDRESS attribute in STUN or ICE Binding-response parsing paths, allowing remote denial of service. This issue is fixed in version 3.1.3...

CVE-2026-54909 Pion STUN vulnerable to remote denial of service via panic while parsing a malformed XOR-MAPPED-ADDRESS attribute

pion/stun is a Go implementation of STUN. Prior to 3.1.3, XORMappedAddress.GetFromAs can panic while parsing a malformed short XOR-MAPPED-ADDRESS attribute in STUN or ICE Binding-response parsing paths, allowing remote denial of service. This issue is fixed in version 3.1.3...

CVE-2026-54909 Pion STUN vulnerable to remote denial of service via panic while parsing a malformed XOR-MAPPED-ADDRESS attribute

pion/stun is a Go implementation of STUN. Prior to 3.1.3, XORMappedAddress.GetFromAs can panic while parsing a malformed short XOR-MAPPED-ADDRESS attribute in STUN or ICE Binding-response parsing paths, allowing remote denial of service. This issue is fixed in version 3.1.3...

CVE-2026-54909 Pion STUN vulnerable to remote denial of service via panic while parsing a malformed XOR-MAPPED-ADDRESS attribute

pion/stun is a Go implementation of STUN. Prior to 3.1.3, XORMappedAddress.GetFromAs can panic while parsing a malformed short XOR-MAPPED-ADDRESS attribute in STUN or ICE Binding-response parsing paths, allowing remote denial of service. This issue is fixed in version 3.1.3...

CVE-2026-54909

pion/stun is a Go implementation of STUN. Prior to 3.1.3, XORMappedAddress.GetFromAs can panic while parsing a malformed short XOR-MAPPED-ADDRESS attribute in STUN or ICE Binding-response parsing paths, allowing remote denial of service. This issue is fixed in version 3.1.3...

EUVD-2026-51666

pion/stun is a Go implementation of STUN. Prior to 3.1.3, XORMappedAddress.GetFromAs can panic while parsing a malformed short XOR-MAPPED-ADDRESS attribute in STUN or ICE Binding-response parsing paths, allowing remote denial of service. This issue is fixed in version 3.1.3...

GHSA-34RH-WP3J-6CXC Pion STUN vulnerable to remote denial of service via panic while parsing a malformed XOR-MAPPED-ADDRESS attribute

Impact Remote denial of service via panic while parsing a malformed XOR-MAPPED-ADDRESS attribute Patches Upgrade to v3.1.5 or later. This version includes this patch https://github.com/pion/stun/pull/278 which fixes the issue. Workarounds No work around; please upgrade to v3.1.5 or a newer versio...

PT-2026-65085

Name of the Vulnerable Software and Affected Versions ip-address versions 10.1.1 through 10.2.0 Description The library is susceptible to Server-Side Request Forgery SSRF due to the misclassification of IPv4-mapped and NAT64 IPv6 addresses. The Address6.getType function classifies addresses by...

GHSA-PJWM-PJ3P-43MV axios's shouldBypassProxy does not recognize IPv4-mapped IPv6 addresses, allowing NO_PROXY bypass (incomplete fix for CVE-2025-62718)

Summary shouldBypassProxy, introduced in v1.15.0 to fix CVE-2025-62718, does not normalise IPv4-mapped IPv6 addresses. When NOPROXY lists an IPv4 address such as 127.0.0.1 or 169.254.169.254, a request URL using the IPv4-mapped IPv6 form ::ffff:7f00:1, ::ffff:a9fe:a9fe still routes through the...

EUVD-2026-30611

Open WebUI is a self-hosted artificial intelligence platform designed to operate entirely offline. Prior to 0.9.0, validateurl in backend/openwebui/retrieval/web/utils.py calls validators.ipv6ip, private=True, but the validators library does NOT implement the private keyword for IPv6 — the call...

MGASA-2026-0115 Updated perl-Net-CIDR-Lite packages fix security vulnerabilities

Net::CIDR::Lite versions before 0.23 for Perl does not validate IPv6 group count, which may allow IP ACL bypass. CVE-2026-40198 Net::CIDR::Lite versions before 0.23 for Perl mishandles IPv4 mapped IPv6 addresses, which may allow IP ACL bypass. CVE-2026-40199...

GHSA-XPCF-PG52-R92G Hono has incorrect IP matching in ipRestriction() for IPv4-mapped IPv6 addresses

Summary ipRestriction does not canonicalize IPv4-mapped IPv6 client addresses e.g. ::ffff:127.0.0.1 before applying IPv4 allow or deny rules. In environments such as Node.js dual-stack, this can cause IPv4 rules to fail to match, leading to unintended authorization behavior. Details The middlewar...

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-2026-26324 OpenClaw has a SSRF guard bypass via full-form IPv4-mapped IPv6 (loopback / metadata reachable)

OpenClaw is a personal AI assistant. Prior to version 2026.2.14, OpenClaw's SSRF protection could be bypassed using full-form IPv4-mapped IPv6 literals such as 0:0:0:0:0:ffff:7f00:1 which is 127.0.0.1. This could allow requests that should be blocked loopback / private network / link-local metada...

Server-side Request Forgery (SSRF)

Overview is-localhost-ip is a Checks whether given DNS name or IPv4/IPv6 address belongs to a local machine Affected versions of this package are vulnerable to Server-side Request Forgery SSRF via the isLocalhost function which misclassifies IP addresses and allows localhost checks to be bypassed...

Fedora 41 : python3.9 (2024-47e4624c89)

The remote Fedora 41 host has a package installed that is affected by a vulnerability as referenced in the FEDORA-2024-47e4624c89 advisory. Python 3.9.21 security release. Security content in this release -------------------------------- - gh-122792: Changed IPv4-mapped ipaddress.IPv6Address to...