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
341 results · Clear filters · Feed
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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 9.8
A blind SSRF attack in DataHub v.1.5.0.1 allows a remote attacker to execute arbitrary code via the server retrieving a…
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Critical 9.8
WhatsUp Gold versions prior to 26.0.2 contain an unauthenticated remote code execution vulnerability in an internal report scheduling service.
In WhatsUp Gold versions released before 2026.0.2, an unauthenticated remote attacker with network access to the affected service can execute arbitrary code in the context of the IIS application service account.
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Critical 9.1
Apache Allura: Server-side request forgery
Apache Allura's webhooks are vulnerable to Server-Side Request Forgery (SSRF). This issue affects Apache Allura: before 1.19.1. Users are recommended to upgrade to version 1.19.1, which fixes the issue.
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Critical 9.3
SeaweedFS: Unauthenticated SSRF with response read-back via VolumeServer.FetchAndWriteNeedle
SeaweedFS is a distributed storage system. Prior to 4.24, VolumeServer.FetchAndWriteNeedle in weed/server/volume_grpc_remote.go fetches a caller-supplied remote endpoint through weed/remote_storage/s3/s3_storage_client.go and writes the response into a needle…
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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…
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Critical 9.8
WGDashboard Server-Side Request Forgery Vulnerability
A Server-Side Request Forgery (SSFR) vulnerability exist in WGDashboard version 4.2.3 and earlier. The webhook functionality allows authenticated attackers to make arbitrary HTTP requests and retrieve responses.
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Critical 9.6
In Eclipse GlassFish versions 8.0.x before 8.0.4, CSRF + SSRF in DownloadServlet ContentSources leaks the admin `gfrest…
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Critical 10.0
Adobe Campaign Classic (ACC) | Server-Side Request Forgery (SSRF) (CWE-918)
Adobe Campaign Classic (ACC) is affected by a Server-Side Request Forgery (SSRF) vulnerability that could result in privilege escalation. Exploitation of this issue does not require user interaction. Scope is changed.
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Critical 9.6
vault-addr annotation SSRF -- webhook makes outbound HTTP call to attacker URL during admission; vault-serviceaccount enables cluster-wide SA token theft via TokenRequest API
vault-secrets-webhook is a Kubernetes mutating webhook that makes direct secret injection into Pods possible. Prior to 1.23.1, parseVaultConfig() in pkg/webhook/config.go accepts the vault.security.banzaicloud.io/vault-addr annotation, MutateConfigMap and Mut…
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Critical 9.3
Flyto2 Core: Unauthenticated flyto-verification /run: callback_url SSRF and internal runner-secret exfiltration
Flyto2 Core is an execution kernel for automation and AI-agent workflows. Prior to 2.26.7, the standalone flyto-verification service in src/core/verification_service.py exposes unauthenticated POST /run on 0.0.0.0:8344 and uses client-supplied callback_url fo…
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Critical 10.0
prebid-server's request forgery vulnerability allows for possible host environment data extraction
Prebid Server is an open-source solution for running real-time advertising auctions in the cloud. Prior to version 4.4.0, certain bidder adapters in Prebid Server interpolate user-supplied parameters into outbound request URLs without properly validating host…
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Critical 9.1
Plack::App::Prerender versions before 0.3.0 for Perl can proxy to an arbitrary host via unvalidated REQUEST_URI concatenation in call
Plack::App::Prerender versions before 0.3.0 for Perl can proxy to an arbitrary host via unvalidated REQUEST_URI concatenation in call. When the rewrite base is a plain string, the REQUEST_URI is appended to it, with no check that the path starts with a forwar…
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Critical 9.4
OpenDJ unauthenticated SSRF, local file read and unbounded-read DoS in the DSMLv2 gateway
The DSMLv2 SOAP gateway (opendj-dsml-servlet) in OpenIdentityPlatform OpenDJ through 5.1.1 dereferences attacker-supplied xsd:anyURI values server-side without a scheme allowlist, egress filtering, or a size cap, and is reachable without authentication by def…
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Critical 10.0
Data Quality Elevation of Privilege Vulnerability
Server-side request forgery (ssrf) in Data Quality allows an unauthorized attacker to elevate privileges over a network.
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Critical 9.8
Joomla Extension - regularlabs.com - SSRF in Cache Cleaner Pro extension
Joomla Extension - regularlabs.com - SSRF in Cache Cleaner Pro extension - Custom query URLs could access internal or reserved network services.
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Critical 9.3
Keep Unauthenticated Server-Side Request Forgery via POST /providers/healthcheck
Keep (commit 91c75e0) contains a server-side request forgery vulnerability that allows unauthenticated attackers to make the backend issue arbitrary HTTP requests by supplying attacker-controlled host values to the unprotected healthcheck endpoint. Attackers …
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Critical 9.6
Better Auth: Server-side request forgery via unvalidated OIDC endpoints on @better-auth/sso provider registration
Better Auth is an authentication and authorization library for TypeScript. Prior to 1.6.11, the @better-auth/sso plugin's POST /sso/register and POST /sso/update-provider endpoints accept attacker-controlled oidcConfig.userInfoEndpoint, tokenEndpoint, and jwk…
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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 9.6
Adobe Experience Manager | Server-Side Request Forgery (SSRF) (CWE-918)
Adobe Experience Manager is affected by a Server-Side Request Forgery (SSRF) vulnerability that could result in arbitrary code execution in the context of the current user. A low-privileged attacker could leverage this vulnerability to issue unauthorized serv…
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Critical 9.9
FacturaScripts: Authenticated SQL injection in the FacturaScripts REST API filter parameter via parenthesis bypass in `Where::sqlColumn`
## Summary > **Live PoC verified 2026-04-30** against a stock FacturaScripts master at `127.0.0.1:8081`. A scoped `ApiKey` with `fullaccess=0` and an `ApiAccess` row granting `allowget=1` on the `clientes` resource only (no other rights, no UI session, no adm…
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Critical 9.2
Input Validation Vulnerabilities in Snowflake Spark Connector
Multiple input validation vulnerabilities in the Snowflake Spark Connector (spark-snowflake) versions prior to 3.2.1 can allow attackers to exfiltrate OAuth client credentials, execute arbitrary SQL with the connector's Snowflake role, or redirect COPY operat…
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Critical 9.3
Guardrails-detectors: guardrails-detectors: ssrf and local file read via user-supplied xml schema (xml-with-schema:)
A flaw was found in the file_type content detector of guardrails-detectors. This vulnerability allows a remote attacker to supply an arbitrary XML Schema Definition (XSD) string, which is processed without proper restrictions. This can lead to server-side req…
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Critical 9.3
Guardrails-detectors: guardrails-detectors: ssrf and local file read via user-supplied xml schema (xml-with-schema:)
A flaw was found in the `guardrails-detectors` component. This vulnerability allows a remote attacker to perform a blind Server-Side Request Forgery (SSRF) by submitting a specially crafted XML Schema Definition (XSD) string. This can lead to unauthorized acc…
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Critical 9.3
repomix - Server-Side Request Forgery via Unvalidated Repository URLs in POST /api/pack
repomix contains a server-side request forgery vulnerability in the POST /api/pack endpoint that allows unauthenticated attackers to make arbitrary outbound requests. The endpoint fails to properly validate http://, https://, and file:// URLs before passing t…
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Critical 9.1
Anti-Virus for ownCloud 10 is vulnerable to Server-Side Request Forgery (SSRF)
Anti-Virus for ownCloud is an anti-virus application for file storage, synchronization, and sharing application ownCloud. Versions of Anti-Virus for ownCloud before 1.2.3 are vulnerable to Server-Side Request Forgery (SSRF). This corresponds to versions of ow…
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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 …
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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…
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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.
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Critical 9.9
Azure OpenAI Elevation of Privilege Vulnerability
Server-side request forgery (ssrf) in Azure OpenAI allows an authorized attacker to elevate privileges over a network.
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Critical 9.9
Microsoft Entra Provisioning Service Elevation of Privilege Vulnerability
Server-side request forgery (ssrf) in Microsoft Entra Provisioning Service (SyncFabric) allows an authorized attacker to elevate privileges over a network.
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Critical 9.9
A malicious actor with access to the network and low privileges could exploit a Server-Side Request Forgery (SSRF) in U…
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Critical 9.0
SSRF with API key leak in pretix-oppwa
The payment integration pretix-oppwa provides support for the payment providers VR Payment, Hobex, and potentially others based on Oppwa's technology. The integration of Oppwa, following their official documentation, includes a step where the user is redirect…
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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 9.0CVE-2026-54157 Scanner template
LobeHub: Unauthenticated SSRF in `/webapi/proxy`
LobeHub is a work-and-lifestyle space to find, build, and collaborate with agent teammates that grow with you. Prior to 2.1.57, the /webapi/proxy endpoint on app.lobehub.com accepts a URL in the POST body and fetches it server-side without any authentication.…
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Critical 9.1
n8n - Credential Exfiltration via Allowed HTTP Request Domains Bypass in Dynamic Node Parameters Endpoint
n8n before 2.20.0 contains a credential exfiltration vulnerability in the POST /rest/dynamic-node-parameters/options endpoint that allows authenticated users to bypass Allowed HTTP Request Domains restrictions. Attackers with credential access can cause the n…
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Critical 9.1
shlink has a Server-Side Request Forgery issue
A Server-Side Request Forgery (SSRF) in the automatic short URL title resolution component of shlink v5.0.1 allows attackers to scan internal resources via supplying a crafted longUrl.
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Critical 10.0
Adobe Campaign Classic (ACC) | Server-Side Request Forgery (SSRF) (CWE-918)
Adobe Campaign Classic (ACC) versions 7.4.3 build 9394 and earlier are affected by a Server-Side Request Forgery (SSRF) vulnerability that could result in privilege escalation. Exploitation of this issue does not require user interaction. Scope is changed.
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Critical 9.9
Tautulli vulnerable to unauthenticated SSRF in /image/<hash> via attacker-seeded image hash replay
Tautulli is a Python based monitoring and tracking tool for Plex Media Server. Versions prior to 2.17.1 expose a public `/image/<hash>` route that resolves attacker-controlled entries from `image_hash_lookup` and replays them through the same server-side imag…
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Critical 9.2
Server-Side Request Forgery vulnerability in GitHub Enterprise Server allowed access to internal services via path traversal in upload endpoint
A server-side request forgery (SSRF) vulnerability was identified in GitHub Enterprise Server that allowed an unauthenticated attacker to send crafted requests to internal services by exploiting insufficient input validation in an upload endpoint. By injectin…