Weakness (CWE)
CWE-918: Server-Side Request Forgery
The web server receives a URL or similar request from an upstream component and retrieves the contents of this URL, but it does not sufficiently ensure that the request is being sent to the expected destination.
How to prevent it (3 mitigations)
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Implementation, Operation
If there is a known list of applications, IP, hostname, and/or domains to which the product is allowed to communicate, then use allowlists to ensure that outgoing requests are restricted to these known entities. The allowlists could be in the application code or possibly enforced by firewalls or network segmentation [REF-1511].
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Implementation, Operation
If the product is expected to be able to connect to arbitrary IP addresses or domains, consider using a denylist that includes private network addresses, internal domain names, etc. The denylist could be in the application code or possibly enforced by firewalls or network segmentation [REF-1511].
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Implementation
Assume all input is malicious. Use an "accept known good" input validation strategy, i.e., use a list of acceptable inputs that strictly conform to specifications. Reject any input that does not strictly conform to specifications, or transform it into something that does.
When performing input validation, consider all potentially relevant properties, including length, type of input, the full range of acceptable values, missing or extra inputs, syntax, consistency across related fields, and conformance to business rules. As an example of business rule logic, "boat" may be syntactically valid because it only contains alphanumeric characters, but it is not valid if the input is only expected to contain colors such as "red" or "blue."
Do not rely exclusively on looking for malicious or malformed inputs. This is likely to miss at least one undesirable input, especially if the code's environment changes. This can give attackers enough room to bypass the intended validation. However, denylists can be useful for detecting potential attacks or determining which inputs are so malformed that they should be rejected outright.
When constructing outgoing requests from input strings, use stringent allowlists that limit the character set based on the expected value of the parameter in the request. This will indirectly limit the scope of an attack, but this technique is less important than proper output encoding and escaping.
Source: MITRE CWE-918
1,406 results · Clear filters · Feed
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High 8.2
CAI Content Credentials | Server-Side Request Forgery (SSRF) (CWE-918)
CAI Content Credentials is affected by a Server-Side Request Forgery (SSRF) vulnerability that could result in arbitrary code execution in the context of the current user. An attacker could exploit this vulnerability to inject malicious scripts into a web pag…
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High 7.7
ColdFusion | Server-Side Request Forgery (SSRF) (CWE-918)
ColdFusion is affected by a Server-Side Request Forgery (SSRF) vulnerability that could result in a Security feature bypass. A low-privileged attacker could leverage this vulnerability to bypass security measures and gain unauthorized read access. Exploitatio…
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High 7.7
Simple Machines Forum SSRF via image proxy
Simple Machines Forum 2.1 prior to commit b4d23df (fixed in 2.1.8) and 3.0 prior to commit 4bf35cf contains a server-side request forgery vulnerability in the image proxy that allows authenticated attackers to trigger internal HTTP requests by embedding attac…
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High 7.3
AWS HealthLake MCP Server SSRF via Pagination URL
AWS HealthLake MCP Server (awslabs.healthlake-mcp-server) is a Model Context Protocol server that enables AI assistants to interact with AWS HealthLake FHIR datastores. A server-side request forgery in the pagination handling component in AWS awslabs.healthla…
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High 7.2
In Roundcube Webmail before 1.6.17 and 1.7.x before 1.7.2, insufficient Cascading Style Sheets (CSS) sanitization in HT…
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High 8.5
OpenClaw < 2026.6.6 Policy Bypass via CDP Discovery
OpenClaw before 2026.6.6 contains a policy bypass vulnerability in browser CDP discovery that accepts blocked WebSocket URLs. Attackers with lower-trust access can reach network destinations that should have been blocked by OpenClaw policy when the affected f…
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High 8.6
Spring Boot Admin Server < 4.1.2 SSRF via Unauthenticated Instance Registration
Spring Boot Admin Server before 4.1.2 contains a server-side request forgery vulnerability that allows unauthenticated attackers to register instances with attacker-controlled healthUrl and managementUrl parameters without validation against private IP ranges…
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High 7.4
CrewAI < 1.15.1 SSRF Filter Bypass via HTTP Redirect in Scrape Tools
CrewAI before 1.15.1 contains a server-side request forgery vulnerability in the validate_url function that performs one-shot DNS resolution and blocklist checks before returning the original URL unchanged. Attackers can bypass the security filter by supplyin…
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High 7.4
Laravel-Mediable < 7.0.0 SSRF via RemoteUrlAdapter URL Handling
Laravel-Mediable before 7.0.0 contains a server-side request forgery vulnerability that allows remote attackers to issue arbitrary HTTP requests from the server by supplying unvalidated caller-controlled URLs to endpoints backed by MediaUploader::fromSource()…
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High 7.2
NukeViet: Pre-authentication SSRF via X-Forwarded-Host
## Summary An unauthenticated attacker can coerce the server into issuing HTTP requests to an attacker-chosen host by spoofing the `X Forwarded-Host` (and `X-Forwarded-Proto`) request headers. The forwarded host is used, without validation, to build the URL t…
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High 7.2
WordPress PDF Generator for WordPress plugin <= 1.6.2 - Server Side Request Forgery (SSRF) vulnerability
Server-Side Request Forgery (SSRF) vulnerability in WP Swings PDF Generator for WordPress pdf-generator-for-wp allows Server Side Request Forgery.This issue affects PDF Generator for WordPress: from n/a through <= 1.6.2.
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High 7.2
WordPress WPJAM Basic plugin <= 7.0 - Server Side Request Forgery (SSRF) vulnerability
Server-Side Request Forgery (SSRF) vulnerability in denishua WPJAM Basic wpjam-basic allows Server Side Request Forgery.This issue affects WPJAM Basic: from n/a through <= 7.0.
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High 8.3
Server-Side Request Forgery protection bypass in misp-modules html_to_markdown via IPv4-mapped IPv6 addresses
A Server-Side Request Forgery (SSRF) protection bypass existed in the html_to_markdown expansion module of misp-modules. The module attempts to prevent requests to loopback, private, link-local, and other restricted IP address ranges. However, IP addresses we…
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High 7.3
LogicalDOC Enterprise Version up to and before v9.1.1 is vulnerable to Server-Side Request Forgery (SSRF). An unauthent…
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High 8.2
Crawl4AI - LLM Credential Exfiltration via base_url and Environment Variable Resolution
Crawl4AI before 0.8.8 contains credential exfiltration vulnerabilities in the Docker API server that allow attackers to redirect LLM API calls to attacker-controlled endpoints and read arbitrary environment variables. Attackers can exploit the unauthenticated…
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High 8.5
PraisonAI before 1.6.78 SSRF via Crawl4AI Chromium backend
PraisonAI versions before 1.6.78 contain a server-side request forgery vulnerability in the Crawl4AI/Chromium backend that allows attackers to bypass SSRF validation by exploiting DNS rebinding and HTTP redirects. Attackers can craft URLs that resolve to inte…
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High 8.1
TypeBot: SSRF protection bypass via IPv6 unspecified address in Typebot HTTP request execution
TypeBot is a chatbot builder tool. Prior to 3.17.2, Typebot's shared SSRF validator in packages/lib/src/ssrf/validateHttpReqUrl.ts can be bypassed with the IPv6 unspecified address :: because validateIPAddress blocks local, metadata, and private ranges but do…
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High 7.5CVE-2026-55229 Scanner template
Gotenberg: SSRF via LibreOffice document processing
Gotenberg is a Docker-powered stateless API for PDF files. Prior to 8.34.0, Gotenberg's /forms/libreoffice/convert endpoint allows a specially crafted document to cause LibreOffice to automatically retrieve external HTTP(S) resources and local file resources …
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High 7.4
Coturn: IPv4-mapped 127.0.0.1 bypasses default loopback peer protection
Coturn is a free open source implementation of TURN and STUN Server. Prior to 4.13.0, coturn rejects loopback peers by default unless allow-loopback-peers is enabled, but the default loopback guard can be bypassed by using the IPv4-mapped IPv6 peer address ::…
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High 8.2
9router: Unauthenticated `/v1` proxy access via `Host`-header spoofing → open AI relay + SSRF
9Router is an AI router & token saver. Prior to 0.5.2, 9router determines whether a /v1 LLM proxy request is local by reading the client-controlled Host header, allowing a remote unauthenticated attacker to send Host: localhost and bypass API-key authenticati…
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High 7.4
9router: Image prefetch DNS rebinding allows SSRF to internal services
9Router is an AI router & token saver. Prior to 0.5.2, 9router validates image URLs by resolving the host before fetching, but open-sse/translator/concerns/image.js performs the later server-side image fetch with a separate DNS resolution. An authenticated at…
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High 7.2
PraisonAI before 4.6.78 Unauthenticated SSRF via webhook_url
PraisonAI before 4.6.78 contains an unauthenticated server-side request forgery vulnerability in the Jobs API /api/v1/runs endpoint. The webhook_url parameter is validated at request time but re-resolved at connection time, allowing attackers to use DNS rebin…
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High 8.6
Crawl4AI - Server-Side Request Forgery via Webhook URLs
Crawl4AI before 0.8.7 contains a server-side request forgery (SSRF) vulnerability in the Docker API server's /crawl/job and /llm/job endpoints, which accept webhook URLs without destination validation. An attacker can supply webhook URLs pointing to private o…
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High 7.3
zhayujie CowAgent Vision Tool vision.py _download_to_data_url server-side request forgery
A vulnerability was determined in zhayujie CowAgent up to 2.1.1. Impacted is the function _build_image_content/_download_to_data_url of the file agent/tools/vision/vision.py of the component Vision Tool. Executing a manipulation of the argument image can lead…
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High 7.7
New API: SSRF Protection Bypass via Unresolved Hostname in Notification URLs
New API is a large language mode (LLM) gateway and artificial intelligence (AI) asset management system. Prior to 0.12.0-alpha.1, the default SSRF protection configuration did not apply IP filtering to hostnames; with ApplyIPFilterForDomain disabled by defaul…
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High 7.7
open-webui terminal proxy path traversal guard bypass via 9x encoded traversal
Open WebUI is an extensible, feature-rich, and user-friendly self-hosted AI platform. From 0.9.6 before 0.10.0, _sanitize_proxy_path in backend/open_webui/routers/terminals.py decoded proxy paths only eight times, allowing a nine-times percent-encoded ../ tra…
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High 7.2
Fluentd: Server-Side Request Forgery (SSRF) via Placeholder Expansion in `out_http`
Fluentd collects events from various data sources and writes them to files, RDBMS, NoSQL, IaaS, SaaS, Hadoop and so on. Prior to 1.19.3, the Fluentd out_http output plugin allows placeholders such as ${tag} in the endpoint configuration parameter, and if a pl…
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High 8.6CVE-2026-60105 Scanner template
Monsta FTP < 2.14.5 SSRF via IPv4-Mapped IPv6 Address Bypass
Monsta FTP before 2.14.5 contains a server-side request forgery vulnerability in the fetchRemoteFile action caused by an incomplete IP blocklist check in the isBlockedIP() function, which fails to detect embedded IPv4 addresses within IPv4-mapped IPv6 address…
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High 7.4
Gradio < 6.20.0 - Open Redirect and SSRF via /gradio_api/file= endpoint
Gradio before 6.20.0 contains an open redirect and server-side request forgery vulnerability that allows attackers to redirect users to arbitrary URLs or perform client-side SSRF by supplying unvalidated HTTP/HTTPS URLs to the file_fetch() function in the /gr…
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High 7.7
FastGPT: SSRF in HTTP-tool OpenAPI schema importer via SwaggerParser $ref (bypasses the isInternalAddress guard)
FastGPT is a knowledge-based AI application platform. Prior to 4.15.0-beta4, the HTTP-tool OpenAPI schema importer validates only the top-level URL before passing it to SwaggerParser.bundle, whose remote reference resolver fetches $ref URLs without FastGPT's …
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High 8.6CVE-2026-59707 Scanner template
LocalAI - Server-Side Request Forgery via POST /models/apply
LocalAI contains an unauthenticated server-side request forgery vulnerability in the POST /models/apply endpoint that allows attackers to fetch arbitrary internal URLs. The endpoint passes unsanitized gallery URL fields directly to gallery.GetGalleryConfigFro…
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High 8.6
Crawl4AI unauthenticated SSRF in Docker streaming crawl endpoint
Crawl4AI is an open-source LLM-friendly web crawler and scraper. Prior to 0.9.0, the Docker API server applied its SSRF destination check on the non-streaming /crawl path but not on the streaming path. handle_stream_crawl_request passed seed URLs straight to …
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High 8.5
SharePoint for ownCloud 10 is vulnerable to Server-Side Request Forgery (SSRF)
SharePoint for ownCloud is an application for using SharePoint with the file storage, synchronization, and sharing application ownCloud Classic. In SharePoint for ownCloud prior to version 0.4.1, which corresponds to ownCloud 10 prior to 10.15.3, an attacker …
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High 8.3
SUSE Rancher Fleet had an Unauthenticated Webhook: Regex Injection via Unsanitized Repository URL Components
Potential forgery of webhook requests when using a unauthenticated webhook in SUSE Rancher Fleet 0.15 before 0.15.2, 0.14 before 0.14.6, 0.13 before 0.13.11 and 0.12 before 0.12.5 could be used by remote attackers to cause a denial of service or a downgrade a…
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High 7.5CVE-2026-55994 Public exploit
Apache Camel Iggy: The inbound consumer maps externally-supplied Iggy message user-headers into the Exchange without a HeaderFilterStrategy, allowing injection of Camel control headers - enabling control over internal behaviour
Improper Input Validation, Exposure of Sensitive Information to an Unauthorized Actor, Server-Side Request Forgery (SSRF) vulnerability in Apache Camel in Iggy component. The camel-iggy consumer mapped the user-headers of inbound Iggy messages into the Camel …
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High 7.5CVE-2026-55993 Public exploit
Apache Camel Atmosphere Websocket: The inbound consumer maps externally-supplied WebSocket query parameters into the Exchange without a HeaderFilterStrategy, allowing injection of Camel control headers - enabling influencing internal behaviour
Improper Input Validation, Exposure of Sensitive Information to an Unauthorized Actor, Server-Side Request Forgery (SSRF) vulnerability in Apache Camel in Atmosphere Websocket Component. The camel-atmosphere-websocket consumer mapped inbound WebSocket query p…
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High 7.5CVE-2026-46726 Public exploit
Apache Camel Vertx Websocket: The inbound consumer maps externally-supplied WebSocket query and path parameters into the Exchange without a HeaderFilterStrategy, allowing injection of Camel control headers
Improper Input Validation, Exposure of Sensitive Information to an Unauthorized Actor, Server-Side Request Forgery (SSRF) vulnerability in Apache Camel in Vertx Websocket component. The camel-vertx-websocket consumer mapped inbound WebSocket query and path pa…
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High 7.4
Microsoft Edge (Chromium-based) Spoofing Vulnerability
Server-side request forgery (ssrf) in Microsoft Edge (Chromium-based) allows an unauthorized attacker to perform spoofing over a network.
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High 8.5
In Eclipse Theia since version 1.26.0, the backend /services/request-service RPC accepts an attacker-controlled URL fro…
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High 7.7
LobeChat < 2.2.10-canary.18 - SSRF via importFromUrl and fetchImageFromUrl
LobeChat before 2.2.10-canary.18 contains a server-side request forgery vulnerability that allows authenticated attackers to direct internal HTTP requests to arbitrary URLs by supplying user-controlled input to the skill import service (importFromUrl) and top…