Common Weakness Enumeration

CWE-918

Allowed

Server-Side Request Forgery (SSRF)

Abstraction: Base · Status: Incomplete

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.

4620 vulnerabilities reference this CWE, most recent first.

CVE-2026-35527 (GCVE-0-2026-35527)

Vulnerability from cvelistv5 – Published: 2026-05-05 19:56 – Updated: 2026-05-06 15:24
VLAI
Title
Incus blind SSRF via image import preflight HEAD request
Summary
Incus is an open source container and virtual machine manager. In versions prior to 7.0.0, the image import flow issues an outbound HEAD request to a user-supplied URL before validating the request against project restrictions such as restricted.images.servers. The imgPostURLInfo function constructs and sends a HEAD request directly from the attacker-supplied source URL to resolve image metadata, and this network interaction occurs before the flow reaches the point where the import would be rejected by policy. Although the actual image download is blocked by the project restriction, an authenticated user can coerce the daemon into making blind HEAD requests to arbitrary destinations. These requests include server metadata in custom headers (Incus-Server-Architectures, Incus-Server-Version), which discloses information about the host environment to the attacker-controlled endpoint. This blind SSRF primitive can be used to probe internal services, unroutable address space, or cloud metadata endpoints reachable from the host. This vulnerability pattern is similar to CVE-2026-24767. This issue has been fixed in version 7.0.0.
SSVC
Exploitation: poc Automatable: no Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
  • CWE-918 - Server-Side Request Forgery (SSRF)
Assigner
References
Impacted products
Vendor Product Version
lxc incus Affected: < 7.0.0
Create a notification for this product.
Show details on NVD website

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CVE-2026-35516 (GCVE-0-2026-35516)

Vulnerability from cvelistv5 – Published: 2026-04-07 15:14 – Updated: 2026-04-09 14:36
VLAI
Title
LinkAce has SSRF via CheckLinksCommand - Link URL Update Bypasses laravel-html-meta Protection
Summary
LinkAce is a self-hosted archive to collect website links. Prior to 2.5.4, LinkRepository::update and CheckLinksCommand::checkLink do not check for private IPs. An authenticated user can read responses from internal services (AWS IMDSv1, cloud metadata, internal APIs) by creating a link with a public URL and then updating it to a private IP. The links:check cron job makes the request server-side without IP filtering. This can expose cloud credentials, internal service data, and network topology. This vulnerability is fixed in 2.5.4.
SSVC
Exploitation: poc Automatable: no Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
  • CWE-918 - Server-Side Request Forgery (SSRF)
Assigner
References
Impacted products
Vendor Product Version
Kovah LinkAce Affected: < 2.5.4
Create a notification for this product.
Show details on NVD website

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CVE-2026-35486 (GCVE-0-2026-35486)

Vulnerability from cvelistv5 – Published: 2026-04-07 14:49 – Updated: 2026-04-09 14:37
VLAI
Title
text-generation-webui has a SSRF in superbooga/superboogav2 extensions — no URL validation
Summary
text-generation-webui is an open-source web interface for running Large Language Models. Prior to 4.3, he superbooga and superboogav2 RAG extensions fetch user-supplied URLs via requests.get() with zero validation — no scheme check, no IP filtering, no hostname allowlist. An attacker can access cloud metadata endpoints, steal IAM credentials, and probe internal services. The fetched content is exfiltrated through the RAG pipeline. This vulnerability is fixed in 4.3.
SSVC
Exploitation: poc Automatable: yes Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
  • CWE-918 - Server-Side Request Forgery (SSRF)
Assigner
References
Impacted products
Show details on NVD website

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CVE-2026-35461 (GCVE-0-2026-35461)

Vulnerability from cvelistv5 – Published: 2026-04-07 14:28 – Updated: 2026-04-09 14:41
VLAI
Title
Papra has a Blind Server-Side Request Forgery (SSRF) via Webhook URL
Summary
Papra is a minimalistic document management and archiving platform. Prior to 26.4.0, the Papra webhook system allows authenticated users to register arbitrary URLs as webhook endpoints with no validation of the destination address. The server makes outbound HTTP POST requests to registered URLs, including localhost, internal network ranges, and cloud provider metadata endpoints, on every document event. This vulnerability is fixed in 26.4.0.
SSVC
Exploitation: poc Automatable: no Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
  • CWE-918 - Server-Side Request Forgery (SSRF)
Assigner
References
Impacted products
Vendor Product Version
papra-hq papra Affected: < 26.4.0
Create a notification for this product.
Show details on NVD website

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CVE-2026-35459 (GCVE-0-2026-35459)

Vulnerability from cvelistv5 – Published: 2026-04-06 19:37 – Updated: 2026-04-07 19:29
VLAI
Title
pyLoad has SSRF fix bypass via HTTP redirect
Summary
pyLoad is a free and open-source download manager written in Python. In 0.5.0b3.dev96 and earlier, pyLoad has a server-side request forgery (SSRF) vulnerability. The fix for CVE-2026-33992 added IP validation to BaseDownloader.download() that checks the hostname of the initial download URL. However, pycurl is configured with FOLLOWLOCATION=1 and MAXREDIRS=10, causing it to automatically follow HTTP redirects. Redirect targets are never validated against the SSRF filter. An authenticated user with ADD permission can bypass the SSRF fix by submitting a URL that redirects to an internal address.
SSVC
Exploitation: poc Automatable: yes Technical Impact: total
CISA Coordinator (v2.0.3)
CWE
  • CWE-918 - Server-Side Request Forgery (SSRF)
Assigner
References
Impacted products
Vendor Product Version
pyload pyload Affected: <= 0.5.0b3.dev96
Create a notification for this product.
Show details on NVD website

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CVE-2026-35431 (GCVE-0-2026-35431)

Vulnerability from cvelistv5 – Published: 2026-04-23 21:37 – Updated: 2026-06-19 16:09 Exclusively Hosted Service
VLAI
Title
Microsoft Entra ID Entitlement Management Spoofing Vulnerability
Summary
Server-side request forgery (ssrf) in Microsoft Entra ID Entitlement Management allows an unauthorized attacker to perform spoofing over a network.
SSVC
Exploitation: none Automatable: yes Technical Impact: total
CISA Coordinator (v2.0.3)
CWE
  • CWE-918 - Server-Side Request Forgery (SSRF)
Assigner
References
Impacted products
Date Public
2026-04-23 14:00
Show details on NVD website

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CVE-2026-35409 (GCVE-0-2026-35409)

Vulnerability from cvelistv5 – Published: 2026-04-06 21:31 – Updated: 2026-04-08 14:05
VLAI
Title
Directus has a SSRF Protection Bypass via IPv4-Mapped IPv6 Addresses in File Import
Summary
Directus is a real-time API and App dashboard for managing SQL database content. Prior to 11.16.0, a Server-Side Request Forgery (SSRF) protection bypass has been identified and fixed in Directus. The IP address validation mechanism used to block requests to local and private networks could be circumvented using IPv4-Mapped IPv6 address notation. This vulnerability is fixed in 11.16.0.
SSVC
Exploitation: none Automatable: no Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
  • CWE-918 - Server-Side Request Forgery (SSRF)
Assigner
References
Impacted products
Vendor Product Version
directus directus Affected: < 11.16.0
Create a notification for this product.
Show details on NVD website

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CVE-2026-35187 (GCVE-0-2026-35187)

Vulnerability from cvelistv5 – Published: 2026-04-06 19:33 – Updated: 2026-04-07 14:03
VLAI
Title
pyLoad has SSRF in parse_urls API endpoint via unvalidated URL parameter
Summary
pyLoad is a free and open-source download manager written in Python. In 0.5.0b3.dev96 and earlier, the parse_urls API function in src/pyload/core/api/__init__.py fetches arbitrary URLs server-side via get_url(url) (pycurl) without any URL validation, protocol restriction, or IP blacklist. An authenticated user with ADD permission can make HTTP/HTTPS requests to internal network resources and cloud metadata endpoints, read local files via file:// protocol (pycurl reads the file server-side), interact with internal services via gopher:// and dict:// protocols, and enumerate file existence via error-based oracle (error 37 vs empty response).
SSVC
Exploitation: poc Automatable: no Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
  • CWE-918 - Server-Side Request Forgery (SSRF)
Assigner
References
Impacted products
Vendor Product Version
pyload pyload Affected: <= 0.5.0b3.dev96
Create a notification for this product.
Show details on NVD website

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CVE-2026-35037 (GCVE-0-2026-35037)

Vulnerability from cvelistv5 – Published: 2026-04-06 16:56 – Updated: 2026-04-06 18:48
VLAI
Title
Ech0 affected by unauthenticated SSRF in GetWebsiteTitle allows access to internal services and cloud metadata
Summary
Ech0 is an open-source, self-hosted publishing platform for personal idea sharing. Prior to 4.2.8, the GET /api/website/title endpoint accepts an arbitrary URL via the website_url query parameter and makes a server-side HTTP request to it without any validation of the target host or IP address. The endpoint requires no authentication. An attacker can use this to reach internal network services, cloud metadata endpoints (169.254.169.254), and localhost-bound services, with partial response data exfiltrated via the HTML <title> tag extraction This vulnerability is fixed in 4.2.8.
SSVC
Exploitation: poc Automatable: yes Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
  • CWE-918 - Server-Side Request Forgery (SSRF)
Assigner
References
Impacted products
Vendor Product Version
lin-snow Ech0 Affected: < 4.2.8
Create a notification for this product.
Show details on NVD website

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CVE-2026-35036 (GCVE-0-2026-35036)

Vulnerability from cvelistv5 – Published: 2026-04-06 16:55 – Updated: 2026-04-07 14:09
VLAI
Title
Ech0 Affected by Unauthenticated Server-Side Request Forgery in Website Preview Feature
Summary
Ech0 is an open-source, self-hosted publishing platform for personal idea sharing. Prior to 4.2.8, Ech0 implements link preview (editor fetches a page title) through GET /api/website/title. That is legitimate product behavior, but the implementation is unsafe: the route is unauthenticated, accepts a fully attacker-controlled URL, performs a server-side GET, reads the entire response body into memory (io.ReadAll). There is no host allowlist, no SSRF filter, and InsecureSkipVerify: true on the outbound client. Anyone who can reach the instance can force the Ech0 server to open HTTP/HTTPS URLs of their choice as seen from the server’s network position (Docker bridge, VPC, localhost from the process view). This vulnerability is fixed in 4.2.8.
SSVC
Exploitation: poc Automatable: yes Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
  • CWE-918 - Server-Side Request Forgery (SSRF)
Assigner
References
Impacted products
Vendor Product Version
lin-snow Ech0 Affected: < 4.2.8
Create a notification for this product.
Show details on NVD website

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No mitigation information available for this CWE.

CAPEC-664: Server Side Request Forgery

An adversary exploits improper input validation by submitting maliciously crafted input to a target application running on a server, with the goal of forcing the server to make a request either to itself, to web services running in the server’s internal network, or to external third parties. If successful, the adversary’s request will be made with the server’s privilege level, bypassing its authentication controls. This ultimately allows the adversary to access sensitive data, execute commands on the server’s network, and make external requests with the stolen identity of the server. Server Side Request Forgery attacks differ from Cross Site Request Forgery attacks in that they target the server itself, whereas CSRF attacks exploit an insecure user authentication mechanism to perform unauthorized actions on the user's behalf.