Open WebUI 代码问题漏洞

Open WebUI is an extensible, feature-rich, and user-friendly self-hosted WebUI under open source. Versions of Open WebUI prior to 0.9.0 had code vulnerabilities. These vulnerabilities stemmed from the validators.ipv6 function in validateurl, which did not implement the private keyword for IPv6. A...

Open WebUI has a full SSRF Vulnerability in the RAG Web Search Feature

SSRF Bypass via IPv6/IPv4-mapped IPv6/IPv4-reserved-ranges in validateurl Summary 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 raises a ValidationError which is...

curl: Trailing-dot IPv4 URL bypasses IP-address guard, allows wildcard DNS SAN match

Hi all, Sorry to ruin anybody's day, but we've discovered another issue when it comes to dots. We've found a TLS certificate verification bypass that lets a trailing-dot IPv4 URL -- https://127.0.0.1./ -- pass peer authentication against a wildcard DNS SAN certificate such as DNS:.0.0.1. The IP...

PT-2026-41172

Name of the Vulnerable Software and Affected Versions Open WebUI versions prior to 0.9.0 Description A Server-Side Request Forgery SSRF bypass exists in the validate url function located in backend/open webui/retrieval/web/utils.py. The function calls validators.ipv6ip, private=True, but because...

CVE-2026-43929

ssrfcheck is a library that checks if a string contains a potential SSRF attack. In 1.3.0 and earlier, ssrfcheck fails to block Server-Side Request Forgery attacks when the target private IP address is encoded as an IPv4-mapped IPv6 address e.g. http://::ffff:127.0.0.1/. The WHATWG URL parser bui...

EUVD-2026-29955

Improper Input Validation in the NAT64 translator in The OpenThread Authors OpenThread before commit 26a882d on all platforms allows an attacker on the adjacent IPv4 network to inject corrupted IPv6 packets into the Thread mesh or bypass security checks via crafted IPv4 packets with options...

OpenThread 输入验证错误漏洞

OpenThread is an open-source implementation of the Thread network protocol stack developed by OpenThread. Versions prior to OpenThread 26a882d contained a vulnerability related to input validation errors. This vulnerability stemmed from improper input validation in the NAT64 converter, allowing...

CVE-2026-43929

ssrfcheck is a library that checks if a string contains a potential SSRF attack. In 1.3.0 and earlier, ssrfcheck fails to block Server-Side Request Forgery attacks when the target private IP address is encoded as an IPv4-mapped IPv6 address e.g. http://::ffff:127.0.0.1/. The WHATWG URL parser bui...

CVE-2026-43929 ssrfcheck: Server-Side Request Forgery (SSRF) and Incomplete List of Disallowed Inputs

ssrfcheck is a library that checks if a string contains a potential SSRF attack. In 1.3.0 and earlier, ssrfcheck fails to block Server-Side Request Forgery attacks when the target private IP address is encoded as an IPv4-mapped IPv6 address e.g. http://::ffff:127.0.0.1/. The WHATWG URL parser bui...

CVE-2026-1681

Issuing an ICMP ping via the net ping shell command to a device's own IPv4 address causes the network stack to recursively re-enter the input path on the same system work-queue stack. Because the destination is recognized as a local address, both the echo request and the resulting echo reply are...

EUVD-2026-29387

Issuing an ICMP ping via the net ping shell command to a device's own IPv4 address causes the network stack to recursively re-enter the input path on the same system work-queue stack. Because the destination is recognized as a local address, both the echo request and the resulting echo reply are...

USN-8180-6: Linux kernel (Raspberry Pi) vulnerabilities

Several security issues were discovered in the Linux kernel. An attacker could possibly use these to compromise the system. This update corrects flaws in the following subsystems: - ARM64 architecture; - Block layer subsystem; - Drivers core; - Bluetooth drivers; - DMA engine subsystem; - GPU...

Unity Linux 20.1050a / 20.1060a / 20.1070a Security Update: kernel (UTSA-2026-017401)

The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2026-017401 advisory. In the Linux kernel, the following vulnerability has been resolved: xfrm: esp: avoid in-place decrypt on shared skb frags MSGSPLICEPAGES can attach pages from a pipe...

Advisory ROSA-SA-2026-3266

software: kernel-6.6 6.6.126 WASP: ROSA-CHROME unaffected versions = kernel-6.6-6.6.6.126-3 affected versions kernel-6.6-6.6.6.126-3 CVE-ID: CVE-2026-43284 BDU-ID: None CVE-Crit: NO DATA CVE-DESC.: A vulnerability in the xfrm subsystem ESP of the Linux kernel allows data decryption over non-packe...

CVE-2026-43284 xfrm: esp: avoid in-place decrypt on shared skb frags

In the Linux kernel, the following vulnerability has been resolved: xfrm: esp: avoid in-place decrypt on shared skb frags MSGSPLICEPAGES can attach pages from a pipe directly to an skb. TCP marks such skbs with SKBFLSHAREDFRAG after skbsplicefromiter, so later paths that may modify packet data ca...

PT-2026-39264

Name of the Vulnerable Software and Affected Versions MCP Registry versions prior to 1.7.7 Description The MCP Registry contains a Server-Side Request Forgery SSRF issue in its HTTP-based namespace verification process. The system uses a function called safeDialContext to prevent connections to...

CVE-2026-42449

n8n-MCP is an MCP server that provides AI assistants access to n8n node documentation, properties, and operations. In versions 2.47.4 through 2.47.13, the SDK embedder path N8NDocumentationMCPServer constructor, getN8nApiClient, and validateInstanceContext, the synchronous URL validator in...

CVE-2026-42449

n8n-MCP is an MCP server that provides AI assistants access to n8n node documentation, properties, and operations. In versions 2.47.4 through 2.47.13, the SDK embedder path N8NDocumentationMCPServer constructor, getN8nApiClient, and validateInstanceContext, the synchronous URL validator in...

CVE-2026-42449 n8n-MCP: IPv4-mapped IPv6 addresses bypass SSRF protection in validateUrlSync(), enabling full SSRF for SDK embedders

n8n-MCP is an MCP server that provides AI assistants access to n8n node documentation, properties, and operations. In versions 2.47.4 through 2.47.13, the SDK embedder path N8NDocumentationMCPServer constructor, getN8nApiClient, and validateInstanceContext, the synchronous URL validator in...

CVE-2026-42449

Summary: CVE-2026-42449 affects n8n-mcp SDK embedder paths where SSRF protection (SSRFProtection.validateUrlSync) fails to validate IPv4-mapped IPv6 addresses, enabling an attacker-controlled n8nApiUrl to cause the server to make HTTP requests to internal networks, cloud metadata endpoints, or lo...