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)
-
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].
-
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].
-
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
43 results · Clear filters · Feed
-
Critical 10.0CVE-2026-102255 Public exploit
A Pre-authentication SSRF vulnerability exists in the SMA1000 Appliance Work Place interface due to an unintended alter…
-
Critical 9.1CVE-2026-51994 Public exploit
mcp-remote versions 0.1.32 through 0.1.38 are vulnerable to Server-Side Request Forgery (SSRF) via the resource_metadat…
-
Critical 10.0
A Pre-authentication SSRF vulnerability exists in the SMA1000 Appliance Work Place interface due to an unintended alter…
KEV Sep 2, 2026 -
Critical 9.3
MLflow: Unauthenticated full-read SSRF in webhook delivery: _validate_webhook_url bypassed via unvalidated HTTP redirects (and DNS rebinding)
MLflow is an open source AI engineering platform for agents, large language models, and machine learning models. Starting in 3.3.0 and prior to 3.15.0, the unauthenticated POST /api/2.0/mlflow/webhooks/{id}/test endpoint calls _validate_webhook_url() in mlflo…
KEV Aug 19, 2026 -
Critical 9.1CVE-2026-19516 Public exploit
CVE-2026-19516 CVE Record
A caller-supplied X-Grafana-URL request header controls the destination of mcp-grafana's outbound requests, and the grafana_api_request tool lets the caller also choose the HTTP method, path, and body. Because the destination is not restricted to the configur…
-
Critical 10.0
A Server-side request forgery (SSRF) vulnerability has been identified in the SMA1000 Appliance Work Place interface. A…
KEV Jul 14, 2026 -
Critical 9.1CVE-2026-48205 Public exploit
Apache Camel DNS: The dns.* and term Exchange header constants used non-Camel-prefixed names that bypass the HTTP header filter, allowing an HTTP client to influence internal behaviour
Improper Input Validation, Server-Side Request Forgery (SSRF) vulnerability in Apache Camel DNS component. The camel-dns producers read DNS operation parameters - the resolver to query, the name or domain to look up, the record type and class, and the search …
-
Critical 9.1CVE-2026-48203 Public exploit
Apache Camel: Camel-Solr: The SolrParam. and SolrField. Exchange header prefixes used non-Camel-prefixed names that bypass the HTTP header filter, allowing an HTTP client to inject Solr query parameters (server-side request forgery) and document fields
Improper Neutralization of Special Elements in Output Used by a Downstream Component ('Injection'), Improper Input Validation, Server-Side Request Forgery (SSRF) vulnerability in Apache Camel Solr component. The camel-solr producer copies Exchange message hea…
-
Critical 9.6CVE-2026-22874 Public exploit
Gitea webhook and migration allow-list filtering permits SSRF
Gitea versions up to and including 1.26.2 have incomplete SSRF protection in webhook and migration allow-list filtering.
-
Critical 10.0
Kestra: Unauthenticated Remote Code Execution via Authentication Bypass in `AuthenticationFilter`
Kestra is an open-source, event-driven orchestration platform. Prior to 1.0.45 and 1.3.21, AuthenticationFilter in Kestra OSS uses request.getPath().endsWith("/configs") to whitelist the public configuration endpoint from Basic Auth. Because the check is a su…
KEV Sep 2, 2026 -
Critical 9.2CVE-2026-42281 Public exploit
MagicMirror²: Unauthenticated SSRF via /cors endpoint
MagicMirror² is an open source modular smart mirror platform. Prior to 2.36.0, an unauthenticated Server-Side Request Forgery (SSRF) vulnerability in the /cors endpoint allows any remote attacker to force the MagicMirror² server to perform arbitrary HTTP requ…
-
Critical 9.1
LoLLMs WEBUI has unauthenticated Server-Side Request Forgery (SSRF) in /api/proxy endpoint
LoLLMs WEBUI provides the Web user interface for Lord of Large Language and Multi modal Systems. A critical Server-Side Request Forgery (SSRF) vulnerability has been identified in all known existing versions of `lollms-webui`. The `@router.post("/api/proxy")`…
-
Critical 9.3CVE-2026-32096 Public exploit
Plunk has SSRF via unvalidated AWS SNS SubscriptionConfirmation in POST /webhooks/sns
Plunk is an open-source email platform built on top of AWS SES. Prior to 0.7.0, a Server-Side Request Forgery (SSRF) vulnerability existed in the SNS webhook handler. An unauthenticated attacker could send a crafted request that caused the server to make an a…
-
Critical 9.2CVE-2026-27739 Public exploit
Angular SSR is vulnerable to SSRF and Header Injection via request handling pipeline
The Angular SSR is a server-rise rendering tool for Angular applications. Versions prior to 21.2.0-rc.1, 21.1.5, 20.3.17, and 19.2.21 have a Server-Side Request Forgery (SSRF) vulnerability in the Angular SSR request handling pipeline. The vulnerability exist…
-
Critical 9.1CVE-2025-55853 Public exploit
SoftVision webPDF before 10.0.2 is vulnerable to Server-Side Request Forgery (SSRF). The PDF converter function does no…
-
Critical 9.3CVE-2025-67494 Public exploit
ZITADEL Vulnerable to Unauthenticated Full-Read SSRF via V2 Login
ZITADEL is an open-source identity infrastructure tool. Versions 4.7.0 and below are vulnerable to an unauthenticated, full-read SSRF vulnerability. The ZITADEL Login UI (V2) treats the x-zitadel-forward-host header as a trusted fallback for all deployments, …
-
Critical 9.9
BentoML is Vulnerable to an SSRF Attack Through File Upload Processing
BentoML is a Python library for building online serving systems optimized for AI apps and model inference. In versions 1.4.0 until 1.4.19, the file upload processing system contains an SSRF vulnerability that allows unauthenticated remote attackers to force t…
-
Critical 9.9CVE-2025-29972 Public exploit
Azure Storage Resource Provider Spoofing Vulnerability
Server-side request forgery (ssrf) in Azure Storage Resource Provider allows an authorized attacker to perform spoofing over a network.
-
Critical 9.3CVE-2025-32013 Public exploit
Server-Side Request Forgery via LNURL Authentication Callback in LNbits Lightning Network Payment System
LNbits is a Lightning wallet and accounts system. A Server-Side Request Forgery (SSRF) vulnerability has been discovered in LNbits' LNURL authentication handling functionality. When processing LNURL authentication requests, the application accepts a callback …
-
Critical 9.8CVE-2024-48590 Public exploit
Inflectra SpiraTeam 7.2.00 is vulnerable to Server-Side Request Forgery (SSRF) via the NewsReaderService. This allows a…
-
Critical 9.1
I, Librarian before and including 5.11.1 is vulnerable to Server-Side Request Forgery (SSRF) due to improper input vali…
-
Critical 9.8CVE-2024-55875 Public exploit
http4k has a potential XXE (XML External Entity Injection) vulnerability
http4k is a functional toolkit for Kotlin HTTP applications. Prior to version 6.50.0.0, there is a potential XXE (XML External Entity Injection) vulnerability when http4k handling malicious XML contents within requests, which might allow attackers to read loc…
-
Critical 9.8CVE-2024-51358 Public exploit
An issue in Linux Server Heimdall v.2.6.1 allows a remote attacker to execute arbitrary code via a crafted script to th…
-
Critical 9.0
Lobe Chat has insufficient fix for GHSA-mxhq-xw3g-rphc (CVE-2024-32964)
Lobe Chat is an open-source artificial intelligence chat framework. Prior to version 1.19.13, server-side request forgery protection implemented in `src/app/api/proxy/route.ts` does not consider redirect and could be bypassed when attacker provides an externa…
-
Critical 9.8CVE-2024-41570 Public exploit
An Unauthenticated Server-Side Request Forgery (SSRF) in demon callback handling in Havoc 2 0.7 allows attackers to sen…
-
Critical 9.1CVE-2024-40898 Public exploit
Apache HTTP Server: SSRF with mod_rewrite in server/vhost context on Windows
SSRF in Apache HTTP Server on Windows with mod_rewrite in server/vhost context, allows to potentially leak NTML hashes to a malicious server via SSRF and malicious requests. Users are recommended to upgrade to version 2.4.62 which fixes this issue.
-
Critical 9.3CVE-2024-28752 Public exploit
Apache CXF SSRF Vulnerability using the Aegis databinding
A SSRF vulnerability using the Aegis DataBinding in versions of Apache CXF before 4.0.4, 3.6.3 and 3.5.8 allows an attacker to perform SSRF style attacks on webservices that take at least one parameter of any type. Users of other data bindings (including the …
-
Critical 9.1
NextChat vulnerable to Server-Side Request Forgery and Cross-site Scripting
NextChat, also known as ChatGPT-Next-Web, is a cross-platform chat user interface for use with ChatGPT. Versions 2.11.2 and prior are vulnerable to server-side request forgery and cross-site scripting. This vulnerability enables read access to internal HTTP e…
-
Critical 9.1CVE-2024-22203 Public exploit
Whoogle Search Server Side Request Forgery vulnerability
Whoogle Search is a self-hosted metasearch engine. In versions prior to 0.8.4, the `element` method in `app/routes.py` does not validate the user-controlled `src_type` and `element_url` variables and passes them to the `send` method which sends a GET request …
-
Critical 9.8
Ray has arbitrary code execution via jobs submission API
Anyscale Ray 2.6.3 and 2.8.0 allows a remote attacker to execute arbitrary code via the job submission API. NOTE: the vendor's position is that this report is irrelevant because Ray, as stated in its documentation, is not intended for use outside of a strictl…
-
Critical 10.0
TorchServe Server-Side Request Forgery
TorchServe is a tool for serving and scaling PyTorch models in production. TorchServe default configuration lacks proper input validation, enabling third parties to invoke remote HTTP download requests and write files to the disk. This issue could be taken ad…
-
Critical 9.8CVE-2022-46364 Public exploit
Apache CXF SSRF Vulnerability
A SSRF vulnerability in parsing the href attribute of XOP:Include in MTOM requests in versions of Apache CXF before 3.5.5 and 3.4.10 allows an attacker to perform SSRF style attacks on webservices that take at least one parameter of any type.
-
Critical 9.8
Skipper vulnerable to SSRF via X-Skipper-Proxy
Zalando Skipper v0.13.236 is vulnerable to Server-Side Request Forgery (SSRF).
-
Critical 9.8CVE-2022-36663 Public exploit
Gluu Oxauth before v4.4.1 vulnerable to Server-Side Request Forgery attacks via a crafted request_uri parameter
Gluu Oxauth before v4.4.1 allows attackers to execute blind SSRF (Server-Side Request Forgery) attacks via a crafted request_uri parameter.
-
Critical 9.4CVE-2022-1592 Public exploit
Server-Side Request Forgery in scout in clinical-genomics/scout
Server-Side Request Forgery in scout in GitHub repository clinical-genomics/scout prior to v4.42. An attacker could make the application perform arbitrary requests to fishing steal cookie, request to private area, or lead to xss...
-
Critical 9.0
mod_proxy SSRF
A crafted request uri-path can cause mod_proxy to forward the request to an origin server choosen by the remote user. This issue affects Apache HTTP Server 2.4.48 and earlier.
KEV Dec 1, 2021 -
Critical 9.1
Microsoft Exchange Server Remote Code Execution Vulnerability
Microsoft Exchange Server Remote Code Execution Vulnerability
KEV Nov 3, 2021 -
Critical 9.8
Multiple vulnerabilities leading to RCE
elFinder is an open-source file manager for web, written in JavaScript using jQuery UI. Several vulnerabilities affect elFinder 2.1.58. These vulnerabilities can allow an attacker to execute arbitrary code and commands on the server hosting the elFinder PHP c…
-
Critical 9.8
The vSphere Client (HTML5) contains a remote code execution vulnerability due to lack of input validation in the Virtua…
KEV Nov 3, 2021 -
Critical 9.8
Server Side Request Forgery in vRealize Operations Manager API (CVE-2021-21975) prior to 8.4 may allow a malicious acto…
KEV Jan 18, 2022