MCP Atlassian: SSRF Protection Bypass

Environment- Project: sooperset/mcp-atlassian- Affected function: validateurlforssrf- Affected path: header-based Jira/Confluence URL authentication flow- Tested endpoint: POST /mcp- Tested version: 2.14.5 DescriptionThe SSRF protection in validateurlforssrf can be bypassed with a URL containing ...

CVE-2026-33534

CVE-2026-33534 - EspoCRM 9.3.3 認証済みSSRF EspoCRM 9.3.3の/api/v1/Attachment/fromImageUrlエンドポイントにおける代替IPv4ループバック表記を利用した認証済みSSRFの概念実証コード。 概要 EspoCRM...

shootback

shootback shootback is a reverse TCP tunnel let you access target behind NAT or firewall 反向TCP隧道, 使得NAT或防火墙后的内网机器可以被外网访问. Consumes less than 1% CPU and 8MB memory under 800 concurrency. slaver is single file and only depends on python2.7/3.4+ standard library. How it works Typical Scene 1. Access...

npcap

Npcap Npcap is a packet capture and injection library for Windows by the Nmap Project. It is a complete update to the unmaintained WinPcap project with improved speed, reliability, and security. Documentation The complete documentation for Npcap is available in the Npcap Guide on npcap.com. There...

CVE-2026-72018

CVE-2026-72018 — Linux カーネル境界外書き込み Linux カーネル • DIBS ループバック • 境界外書き込み CVE-2026-72018 のセキュリティ研究および技術分析。 01 — 概要 CVE-2026-72018 は、DIBS/ISM ループバック機能に影響を与える Linux カーネルの境界外書き込み 脆弱性です。 この脆弱性は、登録された DMB Data Memory Buffer に転送されるデータの処理に関連しています。 影響を受ける実装では、メモリ操作を実行する前に、指定されたオフセット、転送サイズ、および実際の DMB...

Imgproxy < 3.27.2 - Server-Side Request Forgery (SSRF)

imgproxy contains an issue caused by not blocking the 0.0.0.0 address even when IMGPROXYALLOWLOOPBACKSOURCEADDRESSES is set to false, letting local services be exposed, exploit requires network access. id: CVE-2025-24354 info: name: Imgproxy 3.27.2 - Server-Side Request Forgery SSRF author:...

FreeBSD -- IPv6 UDP sendto(2) bypasses jail loopback restriction

Problem Description: The IPv6 UDP send path for unconnected sockets did not apply the jail policy of rewriting a loopback destination address to the jail's primary IPv6 address. Impact: A process in a classic non-VNET jail can send UDP datagrams to services listening on the host's IPv6 loopback...

ida-pro-mcp

IDA Pro MCP ⚠️ Archived — superseded by the official Hex-Rays IDA MCP server This project is no longer maintained. On 2026-09-27 Hex-Rays SA released the Official IDA MCP Server and IDA Nexus. Development stopped the same day at 1.0.0a4. For current use, install theirs: uvx ida-hcli mcp install. I...

CVE-2026-101058

python-utcp pip package utcp-http before 1.1.12 does not verify whether tool URLs declared in a hand-written UTCP manual point at the agent's own loopback interface when that manual is discovered from a remote, non-loopback origin. Because ensuresecureurl intentionally permits loopback HTTP for...

CVE-2026-101058

The python-utcp (pip package utcp-http ) version before 1.1.12 is vulnerable to a Server-Side Request Forgery (SSRF) . The flaw exists because the software fails to verify if tool URLs declared in a hand-written UTCP manual point to the host's loopback interface (127.0.0.1) when the manual is fet...

CVE-2026-101058 python-utcp before 1.1.12 SSRF via Remote HTTP Manual

python-utcp pip package utcp-http before 1.1.12 does not verify whether tool URLs declared in a hand-written UTCP manual point at the agent's own loopback interface when that manual is discovered from a remote, non-loopback origin. Because ensuresecureurl intentionally permits loopback HTTP for...

EUVD-2026-87983

python-utcp pip package utcp-http before 1.1.12 does not verify whether tool URLs declared in a hand-written UTCP manual point at the agent's own loopback interface when that manual is discovered from a remote, non-loopback origin. Because ensuresecureurl intentionally permits loopback HTTP for...

CVE-2026-100863 Heym before 0.0.91 SSRF via image fetching and IPv6 validation

Heym versions 0.0.90 and earlier contain two server-side request forgery SSRF egress gaps, both remediated in app/services/ssrfguard.py in 0.0.91. First, the LLM image-edit input loader loadimagebytes fetched caller-controlled HTTP/HTTPS URLs with a bare httpx.get, applying only a scheme check an...

CVE-2026-100848 AzuraCast before 0.23.8 Server-Side Request Forgery via Remote Relay URL

AzuraCast Composer package azuracast/azuracast before 0.23.8 validates a station's "Remote Relay" URL only for URL syntax and an http/https scheme Utilities\Urls::parseUserUrl, used by StationRemote::getUrlAsUri and performs no host or IP address restriction. A user holding only the station-scope...

CVE-2026-101058: Server-Side Request Forgery (SSRF)

python-utcp pip package utcp-http before 1.1.12 does not verify whether tool URLs declared in a hand-written UTCP manual point at the agent's own loopback interface when that manual is discovered from a remote, non-loopback origin. Because ensuresecureurl intentionally permits loopback HTTP for...

CVE-2026-100642

SiYuan versions v2.1.0 through v3.8.4 are vulnerable to a Cross-Site Request Forgery (CSRF) flaw in the CheckAuth lock-screen pass-through branch . The root cause is the failure to validate Origin headers , which allows attackers to grant administrator access to loopback requests. By crafting mal...

CVE-2026-100642 SiYuan v2.1.0 before v3.8.4 Cross-Site Request Forgery via CheckAuth

SiYuan versions from v2.1.0 before v3.8.4 contain a cross-site request forgery vulnerability in the CheckAuth lock-screen pass-through branch that grants administrator access to loopback requests without validating Origin headers. Attackers can craft malicious web pages that force victims to...

CVE-2026-100642 SiYuan v2.1.0 before v3.8.4 Cross-Site Request Forgery via CheckAuth

SiYuan versions from v2.1.0 before v3.8.4 contain a cross-site request forgery vulnerability in the CheckAuth lock-screen pass-through branch that grants administrator access to loopback requests without validating Origin headers. Attackers can craft malicious web pages that force victims to...

CVE-2026-100573

OpenClaw versions before 2026.8.1 contain a sandbox policy bypass vulnerability in the MCP loopback component that allows sandboxed coding-agent sessions to invoke tools explicitly denied by sandbox.tools.deny policy. Attackers can list and invoke denied tools to access data or perform actions th...

CVE-2026-100576 OpenClaw before 2026.8.1 SSRF via Browser Wait Predicates

OpenClaw versions before 2026.8.1 contain a server-side request forgery vulnerability in browser wait predicates that allows attackers to bypass SSRF protections by reaching blocked destinations. Attackers can use the wait --fn function against an existing browser session to request loopback or...