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
1,853 results · Clear filters · Feed
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Medium 6.8
In JetBrains IntelliJ IDEA before 2026.3, 2026.2.4 unauthenticated connection to an arbitrary host via run configuratio…
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Medium 5.8
Kubeflow Pipelines: Unauthenticated SSRF vulnerability in Kubeflow Pipelines TensorBoard proxy
Kubeflow Pipelines enables users to build and deploy portable, scalable machine learning workflows. From 2.17.0 until 2.18.0, the TensorBoard proxy token introduced by the incomplete remediation for CVE-2026-54745 uses MINIO_SECRET_KEY as its HMAC secret, who…
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Medium 5.0
Kubeflow Pipelines — API server fetches a caller-supplied pipelineURL without host validation
Kubeflow Pipelines enables users to build and deploy portable, scalable machine learning workflows. Prior to 2.17.0, the API server's pipeline and pipeline-version creation paths fetch a caller-supplied pipelineURL without restricting the destination. An auth…
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Medium 6.9
KurrentDB: Privileged access to read $all enables arbitrary file read and GET-only SSRF
KurrentDB is a database engineered for modern software applications and event-driven architectures. In version 26.1.0, a user authorized to read the $all stream can use Secondary Indexing query capabilities to read arbitrary files accessible to the database p…
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Medium 4.8
NationalSecurityAgency/emissary: Incomplete fix for CVE-2026-35571: SSRF
Emissary is a P2P based data-driven workflow engine. Prior to 8.51.0, the VALID_LINK validation in src/main/java/emissary/server/mvc/NavAction.java accepts protocol-relative URLs when processing configured navigation links. Browser URL normalization can inter…
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Medium 4.3
Posta before v0.18.0 SSRF via Webhook URL
Posta before v0.18.0 contains a server-side request forgery vulnerability that allows authenticated users with edit rights to make the backend send POST requests to internal destinations by creating webhooks with arbitrary URLs. Attackers can target loopback,…
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Medium 5.3
buku through 5.1.1 SSRF via bukuserver fetch_data and network_handle API
Buku (bukuserver) through 5.1.1 contains an unauthenticated server-side request forgery vulnerability that allows remote attackers to make the server request internal hosts by supplying a url parameter to /api/fetch_data or /api/network_handle. Attackers can …
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Medium 6.3
Symfony: Ip Constraint public/private Modes Accept IPv4-Mapped and IPv4-Compatible IPv6 Addresses allowing SSRF Filter Bypass
The Symfony Validator component IpValidator incompletely classifies internal addresses in the filtered modes of the Ip constraint, so some internal addresses are accepted as public, which can lead to Server-Side Request Forgery (SSRF) in Symfony versions prio…
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Medium 5.3
Server side request forgery vulnerability exists in the DLP on-prem extensions version 11.13.1 and earlier allows the f…
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Medium 4.3
Apache OFBiz: Unfiltered server-side URL fetch in webtools viewdatafile
Server-Side Request Forgery in ViewDataFile in Apache OFBiz 24.09 before 24.09.08 on all platforms allows a remote authenticated attacker holding only the base webtools permissions (OFBTOOLS_VIEW, WEBTOOLS_VIEW) to cause the server to issue arbitrary outbound…
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Medium 5.0
FV Player < 7.5.56.7212 - Contributor+ SSRF via Media Library Import
The FV Flowplayer Video Player WordPress plugin before 7.5.56.7212 does not validate a user-supplied URL before performing a server-side fetch whose response body is stored and served publicly, allowing users with Contributor-level access and above to perform…
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Medium 4.9
Webmin: SSRF exploit in Upload and Download and File Manager modules
Webmin is a web-based system administration tool for Unix-like servers. Prior to 2.652, untrusted users with access to the File Manager or Upload and Download modules can direct Webmin's server-side URL download functionality to non-public network addresses b…
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Medium 5.8
draw.io: Incomplete SSRF blocklist in `ProxyServlet` / `Utils.sanitizeUrl`: RFC 6598 CGNAT range `100.64.0.0/10` is not blocked -> server-side request to internal CGNAT hosts
draw.io is a configurable diagramming and whiteboarding application. Prior to 30.3.8, the optional /proxy endpoint contains an incomplete server-side request forgery blocklist. When the endpoint is enabled, the URL validator does not reject the RFC 6598 share…
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Medium 5.8
Trawl 1.5.0 before 1.10.0 SSRF via IPv4-mapped IPv6 MCP Policy Bypass
Trawl 1.5.0 before 1.10.0 contains a server-side request forgery vulnerability that allows unauthenticated attackers to bypass the MCP outbound URL policy using IPv4-mapped IPv6 addresses. Attackers can supply hex-normalized addresses like ::ffff:7f00:1 direc…
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Medium 6.3
InfiniFlow RAGFlow Seafile Connector seafile_connector.py _account_get server-side request forgery
A vulnerability has been found in InfiniFlow RAGFlow up to 0.27.3. Affected by this issue is the function _account_get of the file common/data_source/seafile_connector.py of the component Seafile Connector. Such manipulation of the argument seafile_url leads …
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Medium 5.0
Oqtane Framework before 10.3.0 SSRF via File Upload From URL
Oqtane Framework before 10.3.0 contains a server-side request forgery vulnerability in the UploadFile endpoint of FileController.cs that allows authenticated registered users to make the server fetch arbitrary URLs by supplying a caller-controlled url paramet…
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Medium 6.5
easyVoice before 0.0.23 SSRF via openaiBaseUrl in TTS API
easyVoice before 0.0.23 contains a server-side request forgery vulnerability that allows unauthenticated attackers to make the server send POST requests by supplying openaiBaseUrl with useLLM enabled. Attackers can target loopback and internal services throug…
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Medium 4.1
PowerPack Addons for Elementor 2.10.0 - 3.1.2 - Contributor+ SSRF via Charts Widget CSV Import
The PowerPack Addons for Elementor: Widgets, Form Styler and Templates WordPress plugin before 3.1.3 does not validate a user-supplied URL before using it in a server-side HTTP request, which could allow users with the contributor role and above to perform Se…
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Medium 4.3
ArcReel Provider Test-Connection Endpoint test server-side request forgery
A vulnerability has been found in ArcReel 0.32.0/0.33.0/0.34.0. The impacted element is an unknown function of the file /api/v1/providers/{id}/test of the component Provider Test-Connection Endpoint. The manipulation leads to server-side request forgery. Remo…
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Medium 5.3
Server-side request forgery via SpatialReference string input
An issue was discovered in Django 6.1 before 6.1.3, 6.0 before 6.0.10, and 5.2 before 5.2.19. `django.contrib.gis.gdal.SpatialReference` (and related `transform()` methods and `srs`/`srid` setters) do not restrict GDAL’s file and network access when parsing s…
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Medium 5.3
Server-side request forgery via crs member of GeoJSON geometries
An issue was discovered in Django 6.1 before 6.1.3, 6.0 before 6.0.10, and 5.2 before 5.2.19. `django.contrib.gis.gdal.OGRGeometry` does not restrict external coordinate reference system definitions in GeoJSON input, which allows remote attackers to cause ser…
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Medium 5.3
AzuraCast before 0.24.0 SSRF Filter Bypass via Webhook Connectors
AzuraCast before 0.24.0 contains a server-side request forgery vulnerability that allows station users with WebHooks permission to bypass the UserUrlFilter guard via the Mastodon, Telegram, GroupMe, and RadioReg connectors. Attackers can set instance_url, api…
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Medium 4.3
SurrealDB 3.1.0 before 3.3.0 SSRF via Port-Specific --deny-net Host Aliasing Bypass
SurrealDB 3.1.0 before 3.3.0 contains a server-side request forgery vulnerability in network-capability matching because port-specific --deny-net rules (HOST:PORT or IP:PORT) match only a literal host string, while the resolved-IP check discards the port. Aut…
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Medium 4.1
SurrealDB from 3.1.0 before 3.3.0 SSRF via JWKS Implicit Default Port Bypass
SurrealDB from 3.1.0 before 3.3.0 contains a server-side request forgery vulnerability that allows database Owners to bypass port-specific deny-net rules by using JWKS URLs with implicit default ports. Attackers can configure a JWT or record access method who…
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Medium 5.3
Server-Side Request Forgery in extension "Mail" (mail)
Content of external URL mails, their stylesheets and images to embed is fetched by the server without validating the target host. Backend users with access to the mail module can make the server send requests to hosts in the internal network.
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Medium 5.8
Gallery for Social Photo <= 1.0.0.41 - Unauthenticated SSRF via next_url Parameter
The Gallery for Social Photo WordPress plugin through 1.0.0.41 does not validate a user-supplied URL before using it to perform a server-side request, allowing unauthenticated attackers to make the server issue requests to arbitrary internal hosts and read th…
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Medium 5.3
AndyFactory newspaper4k Image Extractor image_extractor.py Article.parse server-side request forgery
A security vulnerability has been detected in AndyFactory newspaper4k up to 0.9.6. This affects the function Article.parse of the file newspaper/extractors/image_extractor.py of the component Image Extractor. Such manipulation leads to server-side request for…
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Medium 5.4
Chainlit 2.12.0 SSRF via Semicolon Path Segment in MCP allowed_urls
Chainlit 2.12.0 contains a server-side request forgery vulnerability that allows unauthenticated attackers to bypass path-scoped MCP allowed_urls entries because validate_mcp_url does not reject the semicolon character. Attackers can submit MCP URLs with '..;…
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Medium 6.8
Stirling-PDF: AI create-pdf-from-html-agent skips HTML sanitization enabling WeasyPrint SSRF and local file read
Stirling-PDF is a locally hosted web application that facilitates various operations on PDF files. Prior to 3.0.0, POST /api/v1/ai/tools/create-pdf-from-html-agent accepts attacker-controlled htmlContent and passes it to WeasyPrint without CustomHtmlSanitizer…
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Medium 5.3
Stirling-PDF: SVG→PDF local file read (LFI) via SVG-sanitizer and Batik same-origin bypass
Stirling-PDF is a locally hosted web application that facilitates various operations on PDF files. From 2.13.1 until 2.13.2, the POST /api/v1/convert/svg/pdf endpoint renders attacker-supplied SVG through Apache Batik, and a scheme-less root-relative image re…
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Medium 6.5
pgAdmin 4: Materialized view refresh redirects its connection through a crafted database name
pgAdmin 4's materialized view refresh passed the target database's name to psql's --dbname argument unchanged. libpq treats a --dbname value containing "=" (or a postgresql:// URI) as a full connection string, whose keywords override the host, port and other …
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Medium 6.4CVE-2026-119712 Public exploit
PipesHub before 0.10.0 SSRF via Image URLs in Indexed Documents
PipesHub before 0.10.0 contains a server-side request forgery vulnerability in ImageParser._fetch_single_url that allows attackers to make the indexing service fetch internal addresses by embedding image URLs in documents. Attackers can supply Markdown or HTM…
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Medium 5.8
Grimoire before 1.0.0 Unauthenticated SSRF via /api/fetch-metadata
Grimoire before 1.0.0 contains an unauthenticated server-side request forgery vulnerability in the /api/fetch-metadata POST handler that passes user-supplied URLs to getMetadata() without authentication checks. Attackers can submit URLs targeting loopback, in…
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Medium 6.5
ArcadeDB 26.8.1 before 26.10.2 SSRF via ALTER DATABASE LOAD CSV Block List
ArcadeDB from 26.8.1 before 26.10.2 contains a server-side request forgery vulnerability that allows authenticated users with updateDatabaseSettings to disable the LOAD CSV IP block list via ALTER DATABASE. Attackers can set arcadedb.opencypher.loadCsv.blocke…
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Medium 5.3
Forgejo through 15.0.11, 16.0.7, and 17.0.1 SSRF via OpenID Discovery
Forgejo through 15.0.11, 16.0.0 through 16.0.7, and 17.0.0 through 17.0.1 contains a server-side request forgery vulnerability that allows unauthenticated attackers to make the server issue requests by submitting arbitrary OpenID identifier URLs. Attackers ca…
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Medium 4.3
Freelinking - Moderately critical - Information Disclosure - SA-CONTRIB-2026-213
Server-Side Request Forgery (SSRF) vulnerability in Drupal Freelinking allows Server Side Request Forgery. This issue affects Freelinking versions: from 0.0.0 to 4.0.3.
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Medium 6.1
Botan: Online OCSP redirects enable blind requests to internal HTTP services
Botan is a C++ cryptography library. Prior to 3.13.0, Botan's online OCSP client allowed a single HTTP redirect while posting an OCSP request to the URI in a certificate's Authority Information Access extension. A malicious OCSP responder or an on-path attack…
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Medium 5.3
Crawl4AI before 0.9.5 Blind SSRF via CacheValidator Freshness Check
Crawl4AI before 0.9.5 contains a blind server-side request forgery vulnerability in the Docker server that allows API clients to bypass the egress proxy by enabling check_cache_freshness. Attackers can cache a controlled URL, then trigger CacheValidator to fo…
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Medium 5.0
Langflow OSS is affected by multiple vulnerabilities
IBM Langflow OSS 1.0.0 through 1.12.3 could allow a remote authenticated attacker to obtain sensitive information due to a server-side request forgery vulnerability.
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Medium 4.3
Langflow OSS is affected by multiple vulnerabilities
IBM Langflow OSS 1.0.0 through 1.12.3 could allow a remote authenticated attacker to obtain sensitive information due to a server-side request forgery (SSRF) vulnerability.