Common Weakness Enumeration

CWE-918

Allowed

Server-Side Request Forgery (SSRF)

Abstraction: Base · Status: Incomplete

API response cwe.mitre.org

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.

6243 vulnerabilities reference this CWE, most recent first.

CVE-2026-73629 (GCVE-0-2026-73629)

Vulnerability from cvelistv5 – Published: 2026-08-13 11:28 – Updated: 2026-08-14 18:10
VLAI
Title
Serendipity before 2.6.0 SSRF via hex IPv4 and IPv6 addresses
Summary
Serendipity before 2.6.0 contains a server-side request forgery vulnerability in the serendipity_url_allowed() filter that fails to block hex-encoded IPv4 addresses, IPv6 literals, and link-local ranges. Authenticated users with adminImagesAdd permission can bypass the filter using alternate address formats to request internal services and retrieve response bodies through the public uploads directory.
Severity
8.4 (High)
CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:L/VA:N/SC:H/SI:L/SA:N
8.5 (High)
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:L/A:N
SSVC
Exploitation: none Automatable: no Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-08-14 18:02 UTC
CWE
  • CWE-918 - Server-Side Request Forgery (SSRF)
Assigner
References
Impacted products
Vendor Product Version
s9y Serendipity Affected: 0 , < 2.6.0 (semver)
Unaffected: 2.6.0 (semver)
    cpe:2.3:a:s9y:serendipity:*:*:*:*:*:*:*:*
Create a notification for this product.
Date Public
2026-07-26 00:00
Credits
riodrwn
Show details on NVD website
To clipboard 

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CVE-2026-73560 (GCVE-0-2026-73560)

Vulnerability from cvelistv5 – Published: 2026-08-17 20:17 – Updated: 2026-08-18 16:00
VLAI
Title
vLLM: SSRF + arbitrary local file read in MiMoV2OmniMultiModalProcessor `_fetch_image` and audio loader bypass MediaConnector protections
Summary
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Severity
6.5 (Medium)
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
SSVC
Exploitation: poc Automatable: no Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-08-18 16:00 UTC
CWE
  • CWE-918 - Server-Side Request Forgery (SSRF)
Assigner
References
Impacted products
Vendor Product Version
vllm-project vllm Affected: < 0.26.0
Create a notification for this product.
Show details on NVD website
To clipboard 

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CVE-2026-73530 (GCVE-0-2026-73530)

Vulnerability from cvelistv5 – Published: 2026-08-13 19:01 – Updated: 2026-08-14 12:46 X_Open Source
VLAI
Title
Flyto2 Core < 2.28.0 SSRF Guard Bypass via is_private_ip()
Summary
Flyto2 Core before 2.28.0 contains a server-side request forgery guard bypass vulnerability that allows attackers to reach internal services by supplying URLs using the unblocked IPv6 address `::` which the kernel routes to loopback identically to `0.0.0.0`. Attackers can submit requests or trigger 302 redirects to ` to bypass the private IP range and blocked hostname checks in `is_private_ip()`, reaching services bound to IPv6 loopback across the `http.get`, `http.request`, and `http.batch` modules.
Severity
6.3 (Medium)
CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:N/SC:H/SI:N/SA:N
7.7 (High)
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:N/A:N
SSVC
Exploitation: poc Automatable: no Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-08-13 19:31 UTC
CWE
  • CWE-918 - Server-Side Request Forgery (SSRF)
Assigner
References
Impacted products
Vendor Product Version
flytohub flyto-core Affected: 0 , < 2.28.0 (semver)
Create a notification for this product.
Date Public
2026-08-12 00:00
Credits
euriconicacio
Show details on NVD website
To clipboard 

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CVE-2026-73497 (GCVE-0-2026-73497)

Vulnerability from cvelistv5 – Published: 2026-09-14 19:50 – Updated: 2026-09-15 13:56
VLAI
Title
MCP Atlassian is a Model Context Protocol (MCP): DNS-rebinding TOCTOU bypass of the SSRF fix (CVE-2026-27826): unauthenticated SSRF to cloud metadata
Summary
MCP Atlassian is a Model Context Protocol (MCP) server for Atlassian products (Confluence and Jira). From 0.17.0 until 0.22.0, validate_url_for_ssrf resolves the attacker-controlled X-Atlassian-Jira-Url and X-Atlassian-Confluence-Url header host once at middleware time, but the outbound request is built with the raw hostname and resolves it again at connection time with no IP pinning. An attacker-controlled DNS-rebinding name can return a public IP during validation and 169.254.169.254 or another internal IP during connection, enabling unauthenticated server-side requests to cloud metadata or internal services. The flaw spans src/mcp_atlassian/utils/urls.py, src/mcp_atlassian/servers/main.py, and src/mcp_atlassian/servers/dependencies.py; validate_url_for_ssrf returns only a verdict rather than a pinned IP, UserTokenMiddleware processes the attacker-controlled headers before fetcher creation, and the Jira and Confluence fetchers use the raw hostname. This issue is fixed in version 0.22.0.
Severity
6.5 (Medium)
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:L/A:N
SSVC
Exploitation: none Automatable: no Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-09-15 13:25 UTC
CWE
  • CWE-918 - Server-Side Request Forgery (SSRF)
Assigner
References
Impacted products
Vendor Product Version
sooperset mcp-atlassian Affected: >= 0.17.0, < 0.22.0
Create a notification for this product.
Show details on NVD website
To clipboard 

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CVE-2026-73474 (GCVE-0-2026-73474)

Vulnerability from cvelistv5 – Published: 2026-09-02 12:32 – Updated: 2026-09-02 18:37
VLAI
Title
Entity Share Websub - Moderately critical - Server-side request forgery (SSRF) - SA-CONTRIB-2026-097
Summary
Server-Side Request Forgery (SSRF) vulnerability in Drupal Entity Share Websub allows Server Side Request Forgery. This issue affects Entity Share Websub versions: from 0.0.0 to 1.1.2.
Severity
5.3 (Medium)
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
SSVC
Exploitation: none Automatable: yes Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-09-02 18:36 UTC
CWE
  • CWE-918 - Server-Side Request Forgery (SSRF)
Assigner
References
Impacted products
Vendor Product Version
Drupal Entity Share Websub Affected: 0.0.0 , < 1.1.2 (semver)
Create a notification for this product.
Date Public
2026-08-12 17:55
Credits
Marcus Johansson (marcus_johansson) Shawn Duncan (fathershawn) Jeffrey S. Mattson (jeffreysmattson) Swan Kalata (akalata) Neil Drumm (drumm) Greg Knaddison (greggles)
Show details on NVD website
To clipboard 

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CVE-2026-73432 (GCVE-0-2026-73432)

Vulnerability from cvelistv5 – Published: 2026-08-12 14:40 – Updated: 2026-08-12 17:03
VLAI
Title
Stored Server-Side Request Forgery in Remote-Instance Synchronization Allows Access to Internal Services in vulnerability-lookup
Summary
Vulnerability-Lookup contains a server-side request forgery (SSRF) vulnerability in the remote-instance synchronization functionality. Remote instance addresses were validated only for basic URL syntax before being stored, while the synchronization worker later dereferenced these addresses using requests.get() with automatic redirect handling and without enforcing network-boundary restrictions. An authenticated administrator with the admin:access permission could configure a remote instance whose address points to an internal, loopback, link-local, or cloud metadata HTTP(S) service. When synchronization is performed, the Vulnerability-Lookup server would issue the request from its own network context. An attacker could also use a publicly accessible URL that redirects to an internal destination, because redirects were previously followed without revalidating the destination. Successful exploitation could allow a privileged attacker to probe or interact with services that are accessible from the Vulnerability-Lookup server but not directly reachable by the attacker, including private network services or cloud instance metadata endpoints. The exact confidentiality, integrity, or availability impact depends on the services reachable from the application server. The patch introduces a shared outbound URL policy that restricts remote instances to HTTP(S), rejects non-public IP addresses, resolves hostnames at request time, and manually validates each redirect destination before following it. The implementation explicitly blocks private, loopback, link-local, multicast, reserved, and unspecified addresses.
Severity
5.1 (Medium)
CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:L/VI:L/VA:N/SC:L/SI:L/SA:N
SSVC
Exploitation: none Automatable: no Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-08-12 17:02 UTC
CWE
  • CWE-918 - Server-Side Request Forgery (SSRF)
Assigner
References
Impacted products
Vendor Product Version
vulnerability-lookup vulnerability-lookup Affected: 0 , ≤ 5.5.1 (semver)
Create a notification for this product.
Credits
openai/gpt-5.5-cyber-preview (reasoning level: high) EUVD @ ENISA Team Cedric Bonhomme Alexandre Dulaunoy
Show details on NVD website
To clipboard 

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CVE-2026-73410 (GCVE-0-2026-73410)

Vulnerability from cvelistv5 – Published: 2026-08-17 20:27 – Updated: 2026-08-17 22:01
VLAI
Title
Budibase: SSRF via DNS rebinding in the REST datasource integration
Summary
Budibase is an open-source low-code platform. Prior to 3.40.0, packages/backend-core/src/utils/outboundFetch.ts pinned a validated address through a Node agent, but the REST integration used getDispatcher from packages/backend-core/src/utils/fetch.ts, causing undici to ignore that agent and resolve the hostname again. A builder could use DNS rebinding to make packages/server/src/integrations/rest.ts connect to an internal address after a public address passed validation, with full response access and arbitrary REST methods. The fix adds createPinnedLookup support to the undici dispatcher and passes the validated address to custom fetch implementations. This issue is fixed in version 3.40.0.
Severity
8.5 (High)
CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:C/C:H/I:H/A:H
SSVC
Exploitation: none Automatable: no Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-08-17 21:59 UTC
CWE
  • CWE-367 - Time-of-check Time-of-use (TOCTOU) Race Condition
  • CWE-918 - Server-Side Request Forgery (SSRF)
Assigner
References
Impacted products
Vendor Product Version
Budibase budibase Affected: < 3.40.0
Create a notification for this product.
Show details on NVD website
To clipboard 

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CVE-2026-73315 (GCVE-0-2026-73315)

Vulnerability from cvelistv5 – Published: 2026-09-08 13:18 – Updated: 2026-10-01 15:20
VLAI
Title
XenForo < 2.3.13 SSRF via PayPal REST Webhook Handler
Summary
XenForo before 2.3.13 contains a server-side request forgery vulnerability in the PayPal REST webhook handler that allows unauthenticated attackers to cause the server to make outbound HTTP requests to arbitrary destinations by supplying a crafted certificate URL in webhook headers without scheme, hostname, or allowlist validation. Attackers can submit a crafted POST to the PayPal webhook callback endpoint to reach internal network resources including cloud instance metadata services, potentially disclosing IAM credentials or enabling secondary internal service exploitation.
Severity
7.7 (High)
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:N/SC:H/SI:N/SA:N
8.6 (High)
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:N/A:N
SSVC
Exploitation: none Automatable: yes Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-09-08 13:42 UTC
CWE
  • CWE-918 - Server-Side Request Forgery (SSRF)
Assigner
References
Impacted products
Vendor Product Version
XenForo XenForo Affected: 0 , < 2.3.13 (semver)
    cpe:2.3:a:xenforo:xenforo:*:*:*:*:*:*:*:*
Create a notification for this product.
Date Public
2026-09-07 00:00
Credits
Marco Paciaroni (BomboBombone) VulnCheck
Show details on NVD website
To clipboard 

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CVE-2026-73307 (GCVE-0-2026-73307)

Vulnerability from cvelistv5 – Published: 2026-08-12 18:59 – Updated: 2026-08-12 19:46
VLAI
Title
Budibase: SSRF via bare fetch() in uploadUrl during AI table generation
Summary
Budibase is an open-source low-code platform. Prior to 3.39.4, uploadUrl in packages/server/src/utilities/fileUtils.ts used a bare server-side fetch for string attachment values passed by processAttachments in packages/server/src/sdk/workspace/ai/helpers/rows.ts. A builder with the AI table-generation feature could cause an attachment value to reference an internal service or cloud metadata endpoint, and the response would be stored as an attachment without fetchWithBlacklist validation. This issue is fixed in version 3.39.4.
Severity
4.9 (Medium)
CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:N/VC:N/VI:N/VA:N/SC:H/SI:N/SA:N
SSVC
Exploitation: poc Automatable: no Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-08-12 19:45 UTC
CWE
  • CWE-918 - Server-Side Request Forgery (SSRF)
Assigner
References
Impacted products
Vendor Product Version
Budibase budibase Affected: < 3.39.4
Create a notification for this product.
Show details on NVD website
To clipboard 

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CVE-2026-73297 (GCVE-0-2026-73297)

Vulnerability from cvelistv5 – Published: 2026-08-12 16:31 – Updated: 2026-08-12 16:49
VLAI
Title
Microsoft UFO: IPv6 transition address bypass of SSRF guard in URL validation
Summary
Microsoft UFO open-source framework for intelligent automation across devices and platforms. Prior to 3.0.8, _is_blocked_ip in ufo/utils/url_security.py did not block NAT64 prefixes 64:ff9b::/96 and 64:ff9b:1::/48, the 6to4 prefix 2002::/16, or the Teredo prefix 2001::/32 and did not re-check embedded IPv4 destinations, allowing an unauthenticated remote attacker who can influence URLs processed by validate_url to bypass the SSRF guard and reach cloud metadata, internal services, or localhost. This issue is fixed in version 3.0.8.
Severity
6.9 (Medium)
CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:N/VI:N/VA:N/SC:H/SI:N/SA:N
SSVC
Exploitation: poc Automatable: no Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-08-12 16:49 UTC
CWE
  • CWE-918 - Server-Side Request Forgery (SSRF)
Assigner
References
Impacted products
Vendor Product Version
microsoft UFO Affected: < 3.0.8
Create a notification for this product.
Show details on NVD website
To clipboard 

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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.

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