CVE-2026-48737

pyLoad is a free and open-source download manager written in Python. Prior to 0.5.0b3.dev101, isglobaladdress in src/pyload/core/utils/web/check.py relies on Python's global-address classification without examining IPv4 destinations embedded in 6to4 or NAT64 IPv6 addresses. A low-privileged user...

CVE-2026-48737

pyLoad (pyload-ng), a Python-based open-source download manager, has an SSRF guard bypass (CWE-918) in its is_global_address function. The guard relies on Python's ipaddress.IPv6Address.is_global, which classifies 6to4 (2002::/16) and NAT64 (64:ff9b::/96) transition prefixes as globally routable ...

CVE-2026-48737 pyLoad: SSRF guard bypass via IPv6 6to4/NAT64 transition wrappers of internal IPs

pyLoad is a free and open-source download manager written in Python. Prior to 0.5.0b3.dev101, isglobaladdress in src/pyload/core/utils/web/check.py relies on Python's global-address classification without examining IPv4 destinations embedded in 6to4 or NAT64 IPv6 addresses. A low-privileged user...

CVE-2026-88896

EspoCRM before 10.0.4 is vulnerable to Server-Side Request Forgery (SSRF) via an IPv6 transition address bypass in HostCheck::ipAddressIsNotInternal(). The function strips ::ffff: (IPv4-mapped IPv6) prefixes but fails to recognize IPv6 transition addresses that embed private IPv4 addresses—NAT64 ...

CVE-2026-88896 EspoCRM before 10.0.4 SSRF via IPv6 Transition Address Bypass

EspoCRM before 10.0.4 is vulnerable to server-side request forgery. HostCheck::ipAddressIsNotInternal, which validates outbound URLs to block requests to internal/private IP addresses, strips ::ffff: IPv4-mapped IPv6 prefixes but does not recognize IPv6 transition addresses that embed private IPv...

GHSA-P2W3-6X73-2F6X Dozzle: SSRF guard bypass via IPv6 transition addresses (6to4/NAT64/Teredo) in webhook notification dispatcher

Summary The isBlockedIP SSRF guard in Dozzle's webhook notification dispatcher blocks loopback, link-local, multicast, and unspecified addresses but does not recognize IPv6 transition mechanism addresses RFC 3056 6to4, RFC 6052 NAT64, RFC 4380 Teredo that embed arbitrary IPv4 addresses. An...

CVE-2026-85692 Nightingale 9.1.1 SSRF Guard Bypass via IPv6 Encoding

Nightingale n9e, as of commit 8362cbe main branch, confirmed 2026-08-27, contains a server-side request forgery vulnerability in the isPublicIP function in aiagent/tools/http.go, the SSRF guard for the httpfetch AI-agent tool. The function only unwraps standard IPv4-mapped ::ffff:a.b.c.d IPv6...

CVE-2026-85692 Nightingale 9.1.1 SSRF Guard Bypass via IPv6 Encoding

Nightingale n9e, as of commit 8362cbe main branch, confirmed 2026-08-27, contains a server-side request forgery vulnerability in the isPublicIP function in aiagent/tools/http.go, the SSRF guard for the httpfetch AI-agent tool. The function only unwraps standard IPv4-mapped ::ffff:a.b.c.d IPv6...

CVE-2026-79749

MCPHub is a unified hub for centrally managing and dynamically orchestrating multiple MCP servers/APIs into separate endpoints with flexible routing strategies. Prior to version 1.0.32, MCPHub's SSRF guard in src/utils/ssrf.ts uses a custom isBlockedIpv6 function that only checks for loopback,...

CVE-2026-79749 MCPHub: SSRF Guard Bypass via IPv6 Transition Addresses in URL Validation

MCPHub is a unified hub for centrally managing and dynamically orchestrating multiple MCP servers/APIs into separate endpoints with flexible routing strategies. Prior to version 1.0.32, MCPHub's SSRF guard in src/utils/ssrf.ts uses a custom isBlockedIpv6 function that only checks for loopback,...

CVE-2026-55245

Bifrost is an enterprise AI gateway for routing requests to model providers. Prior to 1.5.17, the isPublicIP function in core/providers/utils/fetch.go, reached through FetchAndEncodeURL for Bedrock and Vertex image or document URLs, classifies Carrier-Grade NAT 100.64.0.0/10, IPv6 6to4 2002::/16,...

GHSA-W98G-5W9P-P3RC Bifrost's SSRF deny-list is incomplete: isPublicIP permits CGNAT, IPv6 6to4/NAT64, and site-local in FetchAndEncodeURL

Summary isPublicIP in core/providers/utils/fetch.go — the SSRF deny-list that gates FetchAndEncodeURL — does not reject several routable address ranges that map onto internal infrastructure. Carrier-Grade NAT 100.64.0.0/10, RFC 6598, IPv6 6to4 2002::/16, NAT64 64:ff9b::/96 and 64:ff9b:1::/48, and...

Bifrost's SSRF deny-list is incomplete: isPublicIP permits CGNAT, IPv6 6to4/NAT64, and site-local in FetchAndEncodeURL

Summary isPublicIP in core/providers/utils/fetch.go — the SSRF deny-list that gates FetchAndEncodeURL — does not reject several routable address ranges that map onto internal infrastructure. Carrier-Grade NAT 100.64.0.0/10, RFC 6598, IPv6 6to4 2002::/16, NAT64 64:ff9b::/96 and 64:ff9b:1::/48, and...

EUVD-2026-67860

Bifrost is an enterprise AI gateway for routing requests to model providers. Prior to 1.5.17, the isPublicIP function in core/providers/utils/fetch.go, reached through FetchAndEncodeURL for Bedrock and Vertex image or document URLs, classifies Carrier-Grade NAT 100.64.0.0/10, IPv6 6to4 2002::/16,...

CVE-2026-55245 Bifrost: SSRF deny-list incomplete: isPublicIP permits CGNAT, IPv6 6to4/NAT64, and site-local in FetchAndEncodeURL

Bifrost is an enterprise AI gateway for routing requests to model providers. Prior to 1.5.17, the isPublicIP function in core/providers/utils/fetch.go, reached through FetchAndEncodeURL for Bedrock and Vertex image or document URLs, classifies Carrier-Grade NAT 100.64.0.0/10, IPv6 6to4 2002::/16,...

CVE-2026-54494

Koel is a free, open-source music streaming solution. Prior to 9.7.1, App\Helpers\Network::isPublicHost uses filtervar with FILTERFLAGNOPRIVRANGE and FILTERFLAGNORESRANGE, which treats NAT64 64:ff9b::/96 and 6to4 2002::/16 wrappers of private, loopback, or link-local IPv4 addresses as public. An...

CVE-2026-54494

Koel (open-source music streaming, Laravel) prior to 9.7.1 has a full-read SSRF (CWE-918) in its outbound-URL guard App\Helpers\Network::isPublicHost(). PHP's filter_var() with FILTER_FLAG_NO_PRIV_RANGE | FILTER_FLAG_NO_RES_RANGE does not reject NAT64 (64:ff9b::/96) or 6to4 (2002::/16) IPv6 trans...

CVE-2026-54494 Koel: Full-read SSRF via podcast enclosure URL: isPublicHost() filter_var guard does not reject NAT64 (64:ff9b::/96) or 6to4 (2002::/16) IPv6-transition wrappers of internal IPv4

Koel is a free, open-source music streaming solution. Prior to 9.7.1, App\Helpers\Network::isPublicHost uses filtervar with FILTERFLAGNOPRIVRANGE and FILTERFLAGNORESRANGE, which treats NAT64 64:ff9b::/96 and 6to4 2002::/16 wrappers of private, loopback, or link-local IPv4 addresses as public. An...

CVE-2026-54494 Koel: Full-read SSRF via podcast enclosure URL: isPublicHost() filter_var guard does not reject NAT64 (64:ff9b::/96) or 6to4 (2002::/16) IPv6-transition wrappers of internal IPv4

Koel is a free, open-source music streaming solution. Prior to 9.7.1, App\Helpers\Network::isPublicHost uses filtervar with FILTERFLAGNOPRIVRANGE and FILTERFLAGNORESRANGE, which treats NAT64 64:ff9b::/96 and 6to4 2002::/16 wrappers of private, loopback, or link-local IPv4 addresses as public. An...

CVE-2026-73297

Microsoft UFO open-source framework for intelligent automation across devices and platforms. Prior to 3.0.8, isblockedip in ufo/utils/urlsecurity.py did not block NAT64 prefixes 64:ff9b::/96 and 64:ff9b:1::/48, the 6to4 prefix 2002::/16, or the Teredo prefix 2001::/32 and did not re-check embedde...