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
3,802 results · Feed
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Medium 4.3
ApostropheCMS: Host header controls server-side image fetch origin in @apostrophecms/ai-helper, enabling authenticated SSRF
ApostropheCMS is an open-source Node.js content management system. From 1.0.0-beta.10 until 1.0.0-beta.13 of the AI helper, an editor with image-generation capability can create a base64-generated image record without a stored provider URL and invoke image ac…
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Medium 6.4
SolarWinds Observability Self-Hosted Server-Side Request Forgery (SSRF)
SolarWinds Observability Self-Hosted was found to be affected by a Server-Side Request Forgery (SSRF) vulnerability that allows authenticated attackers to cause the application server to send requests to attacker-controlled or internal destinations.
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Medium 5.8
A2A Java SDK has Server-Side Request Forgery (SSRF) in push-notification delivery
A2A Java SDK is the official Java SDK for the Agent2Agent (A2A) Protocol. Prior to 1.3.0.Final, BasePushNotificationSender in server-common sends task data to the URL in TaskPushNotificationConfig without destination validation, scheme restrictions, or bounds…
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High 8.1
Kroxylicious-kms-provider-azure-key-vault-kms: streams for apache kafka kroxylicious: azure key vault ssrf exfiltrates bearer token via untrusted edek vaultname
The Azure Key Vault KMS provider in Kroxylicious accepts an untrusted vaultName from wire-deserialized EDEK bytes without format validation, enabling SSRF that exfiltrates the proxy's Azure bearer token to an attacker-controlled host. Token replay against the…
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Medium 5.1
jwks_uri from the OIDC discovery document is fetched without checking its origin or scheme
PIA's token verification (`verify_token` in `pia/oidc.py`) fetches the OIDC discovery document of an allowlisted issuer and then follows the `jwks_uri` contained in that response without parsing it as a URL, comparing it against the approved issuer's origin, …
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Medium 6.9
Server-Side Request Forgery in extension "Kitodo.Presentation" (dlf)
The extension provides a public proxy endpoint that fetches a URL on behalf of the visitor. For one HTTP request method, the endpoint does not apply the authorization check that protects the other methods, so the URL it fetches is fully controlled by the requ…
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Medium 5.4
IBM ContextForge MCP Gateway is affected by server-side request forgery
IBM ContextForge MCP Gateway 0.1.0 through 1.0.5 is vulnerable to a server-side request Forgery (SSRF) that allows authenticated users with gateway creation privileges to perform arbitrary HTTP POST requests to internal network resources and cloud metadata en…
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Medium 6.3
MISP html_to_markdown Module SSRF via Incomplete IP Range Blocking in is_safe_url()
The html_to_markdown expansion module in MISP Modules contains a server-side request forgery (SSRF) vulnerability in its is_safe_url() URL validation function. The BLOCKED_RANGES list used to reject unsafe destination addresses was incomplete, omitting severa…
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Medium 4.1
TiBillet Lespass APIv1 serializers.py get_img_from_url server-side request forgery
A weakness has been identified in TiBillet Lespass up to 10e87909c5d526dffa6d424c104fc12860740537. This vulnerability affects the function get_img_from_url of the file ApiBillet/serializers.py of the component APIv1. Executing a manipulation of the argument i…
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Medium 4.3
smrealms smr Album Website AlbumEditProcessor.php isUrlReachable server-side request forgery
A vulnerability was determined in smrealms smr up to f40380c017bc35cd8db6ffdb9d4e78bf65b9d43d. Affected is the function isUrlReachable of the file src/pages/Account/AlbumEditProcessor.php of the component Album Website. Executing a manipulation of the argumen…
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Medium 4.3
ptbsare anx-calibre-manager LLM Configuration llm.py LLMClient.chat server-side request forgery
A flaw has been found in ptbsare anx-calibre-manager up to 1.13.12. The impacted element is the function LLMClient.chat of the file blueprints/api/llm.py of the component LLM Configuration Handler. This manipulation of the argument base_url causes server-side…
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Medium 4.3
agit8or1 clientst0r Property URL Importer property_url_importer.py _fetch_html server-side request forgery
A vulnerability was found in agit8or1 clientst0r up to 3.17.586. Affected by this vulnerability is the function _fetch_html of the file locations/services/property_url_importer.py of the component Property URL Importer. The manipulation of the argument url re…
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Medium 5.3
Crawl4AI 0.8.7 through 0.9.5 SSRF Bypass via SSLCertificate.from_url URL Userinfo
Crawl4AI from 0.8.7 through 0.9.5 contains a server-side request forgery vulnerability in the Docker API server that allows unauthenticated attackers to bypass destination checks via URL userinfo parsing differences. Attackers can set fetch_ssl_certificate=tr…
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High 7.4
crewai-tools through 1.15.28 SSRF via SeleniumScrapingTool
crewai-tools through 1.15.28 contains a server-side request forgery vulnerability in SeleniumScrapingTool that allows attackers to fetch internal resources because it never applies the validate_url private-address check. Attackers influencing agent tool input…
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Low 3.3
Krayin CRM 2.2.5 before 2.2.7 SSRF Filter Bypass via DNS Rebinding
Krayin CRM 2.2.5 before 2.2.7 contains a server-side request forgery filter bypass that allows users with webhook permissions to reach internal addresses via DNS rebinding. Attackers can return a public address during WebhookService::isSafeEndpoint() validati…
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Medium 6.5
SGLang through 0.5.22 SSRF via bootstrap_host and bootstrap_port on Decode Worker
SGLang through 0.5.22 in prefill/decode disaggregation mode contains a server-side request forgery vulnerability that allows unauthenticated attackers to trigger outbound requests via client-supplied bootstrap_host and bootstrap_port fields. Attackers sending…
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Medium 4.3
Sigma File Manager through 2.2.0 SSRF via Extension Download Commands
Sigma File Manager through 2.2.0 contains a server-side request forgery vulnerability because validate_remote_url() in security.rs never checks resolved IP addresses for extension download commands. A malicious extension or catalog entry can use hostnames res…
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Medium 4.3
KitchenOwl through 0.7.10 SSRF via Recipe Import scrapeKitchenOwl Fetch
KitchenOwl through 0.7.10 contains a server-side request forgery vulnerability in recipe import that allows authenticated household members to bypass IP filtering via a second unfiltered fetch. Attackers can host a page titled KitchenOwl at a URL matching /re…
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High 8.2CVE-2026-80344 Public exploit
Apache Camel: Camel-AS2 Server-Side Request Forgery and Credential Disclosure via Asynchronous MDN Delivery Address
Server-Side Request Forgery (SSRF) vulnerability in Apache Camel AS2 component. This issue affects Apache Camel: from 4.0.0 before 4.18.5, from 4.19.0 before 4.22.1. In the AS2 protocol the sender of a message may request that the Message Disposition Notifica…
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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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High 7.7CVE-2026-59970 Public exploit
Tandoor Recipes: Blind SSRF via AI provider URL (api_base)
Tandoor Recipes is an application for managing recipes, planning meals, and building shopping lists. Prior to 2.6.10, passes an administrator-controlled AI provider URL directly to LiteLLM without applying the server's outbound-request SSRF checks when an aut…
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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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High 8.6
Chaskiq through 2.0.3 SSRF via createUrlUpload GraphQL Mutation
Chaskiq through 2.0.3 contains a server-side request forgery vulnerability that allows unauthenticated attackers to fetch arbitrary URLs via the createUrlUpload GraphQL mutation. Attackers can submit internal URLs, including cloud instance metadata endpoints,…
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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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Low 2.6
Server-side request forgery in PingOne groups endpoint in Devolutions Server 2026.3.8.0 and earlier allows an authentic…
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High 7.1
Server-Side Request Forgery in Wegow PDF export
Server-Side Request Forgery (SSRF) reported in the ticket sales chart PDF export functionality of Wegow. According to the report, an authenticated user with a promoter account can manipulate the <svg> parameter of the POST request generated by selecting Downl…
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High 7.3
bitcoinj Payment Request PaymentSession.java url.openConnection server-side request forgery
A vulnerability was determined in bitcoinj up to 0.17. Affected is the function url.openConnection of the file PaymentSession.java of the component Payment Request Handler. Executing a manipulation of the argument pki_type can lead to server-side request forg…
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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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Critical 9.9
Deserialization of untrusted data in the Gremlin graph-import path in Amazon Neptune
Deserialization of untrusted data in the Gremlin graph data import component in Amazon Neptune engine might allow an authenticated remote actor with standard database permissions to execute arbitrary code and access internal service credentials. To remediate …