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
1,867 results · Clear filters · Feed
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Medium 5.9CVE-2026-78163 Public exploit
Apache Camel: Camel-Docling Unvalidated Message Body Input Source Enables Server-Side Request Forgery and Local File Disclosure
Server-Side Request Forgery (SSRF), Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal') and Exposure of Sensitive Information to an Unauthorized Actor vulnerability in Apache Camel Docling component. This issue affects Apache Camel:…
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Medium 6.5
Apache Kylin: job-driver UI proxy SSRF
Server-Side request forgery (SSRF) vulnerability in Apache Kylin. Impact most to the kylin job service that are directly exposed to public network, which is not common. In-house kylin deployments are mostly not impacted. This issue affects Apache Kylin: from …
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Medium 5.6
alexta69 MeTube Feed-metadata Thumbnail Fetch ytdl.py DownloadQueue.__write_feed_metadata_sync server-side request forgery
A security vulnerability has been detected in alexta69 MeTube up to 2026.09.28. This vulnerability affects the function DownloadQueue.__write_feed_metadata_sync of the file app/ytdl.py of the component Feed-metadata Thumbnail Fetch Handler. Such manipulation …
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Medium 5.0
WP Data Access < 5.5.88 - Subscriber+ SSRF
The WP Data Access WordPress plugin before 5.5.88 does not have authorisation and CSRF checks in one of its actions, allowing any authenticated user, such as a subscriber, to make the server open connections to arbitrary hosts and ports, including internal on…
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Medium 5.3
fish-island-backend through commit 7c61b78 SSRF via /api/web/parse
fish-island-backend through commit 7c61b78 contains an unauthenticated server-side request forgery vulnerability that allows remote attackers to make the server fetch attacker-supplied URLs via the url parameter of GET /api/web/parse. Attackers can target int…
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Medium 5.8
Chaskiq through 2.0.3 Unauthenticated SSRF via /oembed Endpoint
Chaskiq through 2.0.3 contains a server-side request forgery vulnerability that allows unauthenticated attackers to make the server fetch arbitrary URLs via the url parameter of the /oembed endpoint. Attackers can target loopback, private, or cloud-metadata a…
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Medium 5.4
SparkyFitness: SSRF via unvalidated custom_url in AI service settings
SparkyFitness is a self-hosted, AI-powered health and fitness tracker for families. Prior to 1.6.0, SparkyFitnessServer/services/chatService.ts and SparkyFitnessServer/services/labelScanService.ts do not validate destinations supplied in custom AI service set…
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Medium 5.3
RedAmon through 7.0.1 Unauthenticated SSRF via /tradecraft/verify Endpoint
RedAmon through 7.0.1 contains an unauthenticated server-side request forgery vulnerability in the agent POST /tradecraft/verify endpoint because validate_url checks only the initial hostname. Attackers can submit a public URL that redirects or DNS-rebinds to…
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Medium 5.4
TaskingAI through 0.3.0 SSRF via OpenAPI servers[0].url in Actions
TaskingAI through 0.3.0 contains a server-side request forgery vulnerability that allows authenticated attackers to make the backend send arbitrary HTTP requests by supplying an unvalidated OpenAPI servers[0].url in a user-defined action. Attackers holding a …
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Medium 6.5
ValueCell through 0.1.20 Unauthenticated SSRF via /api/v1/models/check
ValueCell through 0.1.20 contains an unauthenticated server-side request forgery vulnerability that allows remote attackers to direct backend requests by setting an unvalidated provider base_url. Attackers can set base_url via the provider config endpoint and…
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Medium 6.5
JobOps through 0.13.1 SSRF via POST /api/manual-jobs/fetch
JobOps through 0.13.1 contains a server-side request forgery vulnerability in the POST /api/manual-jobs/fetch handler that allows authenticated users, or unauthenticated clients in demo mode, to make the server fetch internal destinations. Attackers can suppl…
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Medium 5.4
Web3.py 7.15.0 through 7.16.0 and 8.0.0b2 through 8.0.0 CCIP-Read SSRF Bypass
Web3.py 7.15.0 through 7.16.0 and 8.0.0b2 through 8.0.0 contains a server-side request forgery vulnerability because _check_ip_blocked() does not unwrap IPv4-mapped IPv6 addresses in CCIP Read URL validation. Malicious contracts can return OffchainLookup URLs…
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Medium 6.3
AliasVault: Server-Side Request Forgery via DNS rebinding in Favicon Extraction
AliasVault is a privacy-first password manager with built-in email aliasing. Prior to 0.30.3, the AliasVault server API favicon extractor validates a user-supplied hostname with a first DNS lookup but allows the HTTP client to perform a second DNS lookup when…
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Medium 5.3
NL Portal Backend Libraries: Unauthenticated form resolver forwards the privileged Objecten-API token to a caller-supplied URL (SSRF)
NL Portal Backend Libraries provide backend components for Dutch government portals that interact with residents, customers, suppliers, and partner organizations. From 1.1.0 until 3.0.4, and in 3.1.0, the public getFormDefinitionByObjectenApiUrl and deprecate…
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Medium 4.3
Helium: SSRF via External Calendar URL Allows Authenticated Users to Probe Internal Network
Helium is a free online student planner for classes, homework, grades, and notes. Prior to 2.2.60, any authenticated user can submit an arbitrary URL to POST /feed/externalcalendars/, where helium/feed/services/icalexternalcalendarservice.py uses validate_url…
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Medium 5.3
SSRF in QNAP Download Station
A server-side request forgery (SSRF) vulnerability has been reported to affect Download Station. If a remote attacker gains a user account, they can then exploit the vulnerability to read application data. We have already fixed the vulnerability in the follow…
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Medium 5.0CVE-2026-78850 Public exploit
An issue in Matomo v.5.11.2 allows a remote attacker to obtain sensitive information via the SiteContentDetector / Site…
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Medium 6.8
InvoiceShelf: SSRF via unvalidated Gotenberg PDF renderer host in PDF configuration
InvoiceShelf is an open-source web & mobile app that helps track expenses, payments and create professional invoices and estimates. Prior to version 2.4.0, InvoiceShelf's PDFConfigurationRequest.php validates the owner-controlled gotenberg_host setting only a…
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Medium 6.8
BentoPDF: SSRF via DNS Rebinding (TOCTOU) in Cloudflare CORS Proxy Worker
BentoPDF is a privacy-focused PDF toolkit that runs in the browser. In versions through 2.8.6, cloudflare/cors-proxy-worker.js performs a DNS-over-HTTPS safety check in hostnameResolvesToPrivate(), as used by isValidCertificateUrl() and isValidTsaUrl(), separ…
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Medium 4.9
Redash: JSON data source query URL can bypass base URL restriction
Redash is a package for data visualization and sharing. From 10.0.0 until 26.9.0, the JSON data source query runner in redash/query_runner/json_ds.py used _get_all_results() to combine its configured base_url with a user-supplied query URL by using urljoin. A…
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Medium 5.9
TurboDocx html-to-docx through 1.23.1 SSRF via img src Remote Image Download
TurboDocx html-to-docx through 1.23.1 contains a server-side request forgery vulnerability that allows attackers supplying HTML to make the server fetch internal URLs via img src attributes. Attackers can reference loopback, private, or cloud metadata address…
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Medium 5.3
Gitea blind SSRF through OpenID assertion verification
When OpenID sign-in is enabled, Gitea processes unauthenticated assertion parameters and sends an HTTP POST request to the caller-supplied OpenID provider endpoint during verification. An attacker controls the destination and much of the form body, allowing i…
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Medium 5.3
Gitea OpenID discovery server-side request forgery
When OpenID sign-in is enabled, Gitea accepts a user-supplied OpenID URL and performs discovery requests without validating the destination against internal network addresses. An unauthenticated remote attacker can cause the server to contact loopback or priv…
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Medium 5.4
ruoyi-vue-pro through 2026.09 SSRF via Midjourney referImageUrl and notify imageUrl
ruoyi-vue-pro through 2026.09 contains a server-side request forgery vulnerability in the yudao-module-ai image service that allows authenticated users to make the server fetch arbitrary URLs by supplying referImageUrl to the midjourney imagine endpoint. Atta…
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Medium 4.0
ONLYOFFICE DocumentServer before 10.0.0 SSRF via downloadfile isInJwtToken Bypass
ONLYOFFICE DocumentServer before 10.0.0 contains an unauthenticated server-side request forgery vulnerability in the /downloadfile/:docid endpoint that allows remote attackers to bypass the private-IP request-filtering-agent by exploiting the isInJwtToken fla…
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Medium 4.1
FV Player 7.5.44.7212 - 7.5.54.7212 - Contributor+ SSRF via retrieve_video_data
The FV Flowplayer Video Player WordPress plugin before 7.5.55.7212 does not properly validate a user-supplied URL before performing a server-side fetch, and an existing host-based restriction fails to cover all cases, allowing users with Contributor-level acc…
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Medium 4.3
Dockhand before 1.0.45 SSRF via IPv6 Transition Address Bypass in ipCategory
Finsys Dockhand before 1.0.45 contains a server-side request forgery vulnerability in the ipCategory() function in src/lib/server/url-safety.ts, which fails to check NAT64, 6to4, and Teredo IPv6 transition ranges. Authenticated attackers can embed loopback, c…
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Medium 6.5
Azure Arc Elevation of Privilege Vulnerability
Server-side request forgery (ssrf) in Azure Arc allows an authorized attacker to elevate privileges over a network.
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Medium 6.5
Microsoft Office SharePoint Information Disclosure Vulnerability
Server-side request forgery (ssrf) in Microsoft Office SharePoint allows an authorized attacker to disclose information over a network.
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Medium 5.7
Microsoft Office SharePoint Spoofing Vulnerability
Server-side request forgery (ssrf) in Microsoft Office SharePoint allows an authorized attacker to perform spoofing over an adjacent network.
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Medium 4.8
Lancet through 2.3.9 SSRF Protection Bypass via netutil.IsInternalIP
Lancet through 2.3.9 contains an SSRF protection bypass vulnerability in netutil.IsInternalIP that misclassifies IPv6 private, link-local, CGNAT and transition addresses as external. Attackers can supply hostnames resolving to these address forms, including N…
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Medium 5.3
Razorpay IFSC Ruby gem through 2.0.62 SSRF via IFSC lookup
Razorpay IFSC Ruby gem through 2.0.62 contains a server-side request forgery vulnerability that allows attackers to redirect API requests by supplying a crafted IFSC code to IFSC.find or IFSC#get. Attackers can submit network-path references or absolute URIs …
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Medium 5.3
conductor-oss conductor Agentspan Agent Runtime AgentController.java server-side request forgery
A vulnerability was identified in conductor-oss conductor up to 3.33.0-rc10. Affected by this issue is some unknown functionality of the file AgentController.java of the component Agentspan Agent Runtime. The manipulation leads to server-side request forgery.…
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Medium 6.3
conductor-oss conductor MCP Service MCPService.java MCPService.listTools server-side request forgery
A vulnerability was found in conductor-oss conductor 3.22.0. Affected is the function MCPService.listTools of the file ai/src/main/java/org/conductoross/conductor/ai/mcp/MCPService.java of the component MCP Service. Performing a manipulation of the argument m…
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Medium 6.3
conductor-oss conductor API Tool Configuration ListApiToolsTask.java ListApiToolsTask.start server-side request forgery
A vulnerability has been found in conductor-oss conductor 3.31.2. This affects the function ListApiToolsTask.start of the file ListApiToolsTask.java of the component API Tool Configuration. The manipulation of the argument specUrl leads to server-side request…
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Medium 6.3
fit2cloud MeterSphere Swagger3 Swagger3ParserApiDefinition.java Swagger3ParserApiDefinition.testUrlTimeout server-side request forgery
A vulnerability was detected in fit2cloud MeterSphere up to 3.6.9-lts. The affected element is the function Swagger3ParserApiDefinition.testUrlTimeout of the file backend/parser/api/dataimport/Swagger3ParserApiDefinition.java of the component Swagger3 Parser.…
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Medium 6.5
A Server-Side Request Forgery (SSRF) in the serviceURL parameter of ProPhoenix Law RMS v2022.2403.3.101 allows attacker…
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Medium 5.3
EricLBuehler mistral.rs media_source.rs is_global_ip server-side request forgery
A vulnerability has been found in EricLBuehler mistral.rs up to 0.9.3. Impacted is the function is_global_ip of the file mistralrs-server-core/src/media_source.rs. Such manipulation of the argument ip leads to server-side request forgery. The attack can be la…
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Medium 4.3
Frappe ERPNext before 15.112.0 Server-Side Request Forgery via Configuration Field
Frappe ERPNext before 15.112.0 and 16.x before 16.23.0 contains a server-side request forgery vulnerability caused by a configuration field, writable by common operational roles, that accepts an arbitrary outbound request destination without validation. Authe…
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Medium 4.3
SPIP before 4.4.18 SSRF via HTTP Redirects in recuperer_url
SPIP before 4.4.18 contains a server-side request forgery vulnerability in recuperer_url() in ecrire/inc/distant.php that follows up to 10 redirects without re-validating targets with valider_url_distante(). Authenticated attackers can supply a remote URL, su…