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.

5502 vulnerabilities reference this CWE, most recent first.

CVE-2026-53500 (GCVE-0-2026-53500)

Vulnerability from cvelistv5 – Published: 2026-07-31 18:35 – Updated: 2026-07-31 23:30
VLAI
Title
Thumbor treats ALLOWED_SOURCES string patterns as unescaped regex, allowing hostname bypass via wildcard dot
Summary
Thumbor is an open-source photo thumbnail service by globo.com. Prior to 7.8.0, the ALLOWED_SOURCES configuration passes plain strings to re.match() without escaping dots, so a hostname differing at dot positions can match the allowlist. This issue is fixed in 7.8.0.
SSVC
Exploitation: poc Automatable: yes Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-07-31 23:29 UTC
CWE
  • CWE-918 - Server-Side Request Forgery (SSRF)
Impacted products
Vendor Product Version
thumbor thumbor Affected: < 7.8.0
Create a notification for this product.
Show details on NVD website

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CVE-2026-53450 (GCVE-0-2026-53450)

Vulnerability from cvelistv5 – Published: 2026-07-10 18:05 – Updated: 2026-07-10 19:03
VLAI
Title
Coturn: IPv4-mapped 127.0.0.1 bypasses default loopback peer protection
Summary
Coturn is a free open source implementation of TURN and STUN Server. Prior to 4.13.0, coturn rejects loopback peers by default unless allow-loopback-peers is enabled, but the default loopback guard can be bypassed by using the IPv4-mapped IPv6 peer address ::ffff:127.0.0.1 in a TURN XOR-PEER-ADDRESS attribute. ioa_addr_is_loopback checks for the literal IPv6 loopback shape before IPv4-mapped IPv6 handling, so good_peer_addr does not apply the default loopback rejection and an authenticated TURN client can expose services bound only to localhost on the coturn host through TURN relay traffic. This issue is fixed in version 4.13.0.
SSVC
Exploitation: poc Automatable: no Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-07-10 19:03 UTC
CWE
  • CWE-918 - Server-Side Request Forgery (SSRF)
References
Impacted products
Vendor Product Version
coturn coturn Affected: < 4.13.0
Create a notification for this product.
Show details on NVD website

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CVE-2026-53446 (GCVE-0-2026-53446)

Vulnerability from cvelistv5 – Published: 2026-07-15 21:10 – Updated: 2026-07-16 12:49
VLAI
Title
Wekan: Server-Side Request Forgery (SSRF) via webhook integration URLs
Summary
Wekan is open source kanban built with Meteor. Prior to 9.32, Wekan webhook integration URLs in models/integrations.js are stored from user input and later fetched by server/notifications/outgoing.js without applying the existing validateAttachmentUrl() private-network checks from models/lib/attachmentUrlValidation.js. A board administrator can configure webhook URLs that cause server-side requests to internal or metadata services. This issue is fixed in version 9.32.
SSVC
Exploitation: none Automatable: no Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-07-16 12:49 UTC
CWE
  • CWE-918 - Server-Side Request Forgery (SSRF)
Impacted products
Vendor Product Version
wekan wekan Affected: < 9.32
Create a notification for this product.
Show details on NVD website

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CVE-2026-52840 (GCVE-0-2026-52840)

Vulnerability from cvelistv5 – Published: 2026-07-14 15:23 – Updated: 2026-07-15 13:53
VLAI
Title
Easy!Appointments has server-side request forgery in CalDAV connection test that exposes the deployment's internal network
Summary
Easy!Appointments is a self hosted appointment scheduler. In versions prior to 1.6.0, `Caldav::connect_to_server` at `application/controllers/Caldav.php:60` hands the request's `caldav_url` to a Guzzle `REPORT` call without scheme or host validation. A logged-in backend user (admin, provider, or secretary) reaches loopback, RFC1918, and link-local hosts on the deployment's network. The Guzzle exception path returns the upstream status code plus ~120 bytes of response body in the JSON `message` field (`Caldav.php:74-78`), so the SSRF is semi-blind. Version 1.6.0 contains a patch.
SSVC
Exploitation: poc Automatable: no Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-07-15 13:53 UTC
CWE
  • CWE-918 - Server-Side Request Forgery (SSRF)
References
Impacted products
Show details on NVD website

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CVE-2026-52805 (GCVE-0-2026-52805)

Vulnerability from cvelistv5 – Published: 2026-06-24 20:22 – Updated: 2026-06-26 03:55
VLAI
Title
Gogs: Migration Redirect Bypass Leads to Internal Repository Theft
Summary
Gogs is an open source self-hosted Git service. Prior to 0.14.3, a Server-Side Request Forgery (SSRF) vulnerability exists in the repository migration functionality. The application validates only the initially submitted URL hostname, but git clone --mirror follows HTTP redirects. An authenticated user can submit a public URL that redirects to a blocked internal endpoint (e.g., 127.0.0.1), importing the internal repository's contents into an attacker-controlled repository. This vulnerability is fixed in 0.14.3.
SSVC
Exploitation: none Automatable: no Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-06-25 00:00 UTC
CWE
  • CWE-918 - Server-Side Request Forgery (SSRF)
Impacted products
Vendor Product Version
gogs gogs Affected: < 0.14.3
Create a notification for this product.
Show details on NVD website

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CVE-2026-52776 (GCVE-0-2026-52776)

Vulnerability from cvelistv5 – Published: 2026-08-25 23:12 – Updated: 2026-08-26 14:23
VLAI
Title
Trestle URLSecurityValidator SSRF allowlist bypass via IPv4-mapped IPv6 and 0.0.0.0
Summary
Compliance-trestle (Trestle) is a tooling platform for managing compliance as code. In versions before 3.12.4 and versions 4.0.0 through 4.0.3, the URLSecurityValidator that guards trestle's remote-fetch paths against server-side request forgery can be bypassed to reach loopback, link-local, cloud-metadata, and internal network endpoints it was designed to block. The blocklist does not canonicalize IPv4-mapped IPv6 literals such as [::ffff:169.254.169.254], which resolve to IPv6Address objects that never match the blocked IPv4 ranges, and it does not block the unspecified address 0.0.0.0, which routes to local services on Linux and inside containers. An attacker who can supply or influence an OSCAL artifact that trestle fetches, such as a malicious profile whose imports reference one of these bypass URLs, can cause the HTTPSFetcher and SFTPFetcher paths to contact cloud instance-metadata services, loopback interfaces, or internal hosts. This issue is fixed in versions 3.12.4 and 4.1.0.
SSVC
Exploitation: poc Automatable: no Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-08-26 14:23 UTC
CWE
  • CWE-184 - Incomplete List of Disallowed Inputs
  • CWE-918 - Server-Side Request Forgery (SSRF)
Impacted products
Vendor Product Version
oscal-compass compliance-trestle Affected: < 3.12.4
Affected: >= 4.0.0, < 4.1.0
Create a notification for this product.
Show details on NVD website

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CVE-2026-50552 (GCVE-0-2026-50552)

Vulnerability from cvelistv5 – Published: 2026-06-12 18:51 – Updated: 2026-06-15 15:25
VLAI
Title
Koel: Server-Side Request Forgery (SSRF) in radio station creation due to missing validation bail
Summary
Koel is a free, open-source music streaming solution. Prior to version 9.7.1, Koel contains a Server-Side Request Forgery (SSRF) vulnerability in the radio station creation endpoint (POST /api/radio/stations). The url field validation rules are declared without the bail keyword, so the HasAudioContentType rule — which issues HTTP requests to the supplied URL — still executes even after the SafeUrl rule has rejected the URL as pointing to a private/reserved address. Any authenticated, non-admin user can therefore coerce the server into making HEAD/GET requests to arbitrary internal hosts. This issue has been patched in version 9.7.1.
SSVC
Exploitation: poc Automatable: no Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-06-15 15:25 UTC
CWE
  • CWE-918 - Server-Side Request Forgery (SSRF)
References
Impacted products
Vendor Product Version
koel koel Affected: < 9.7.1
Create a notification for this product.
Show details on NVD website

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CVE-2026-50288 (GCVE-0-2026-50288)

Vulnerability from cvelistv5 – Published: 2026-08-21 19:29 – Updated: 2026-08-21 19:55
VLAI
Title
@asymmetric-effort/specifyjs: URL parse failure silently allows request
Summary
SpecifyJS is a declarative TypeScript user interface framework. Prior to version 0.2.136, when `new URL()` throws a parse error, the `assertSecureUrl` function returned without throwing, silently allowing the request to proceed without HTTPS validation. Starting in version 0.2.136, the catch block now throws an error instead of silently returning.
SSVC
Exploitation: none Automatable: yes Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-08-21 19:55 UTC
CWE
  • CWE-918 - Server-Side Request Forgery (SSRF)
Impacted products
Vendor Product Version
asymmetric-effort specifyjs Affected: < 0.2.136
Create a notification for this product.
Show details on NVD website

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CVE-2026-50237 (GCVE-0-2026-50237)

Vulnerability from cvelistv5 – Published: 2026-08-11 11:23 – Updated: 2026-08-26 16:15
VLAI
Title
Openshift/console: namespace tenant ssrf with egress bypass, catalog poisoning, and admin-mediated supply chain escalation via projecthelmchartrepository in openshift console
Summary
A Server-Side Request Forgery and supply chain flaw was found in the OpenShift Console Helm catalog proxy. A namespace tenant can plant a ProjectHelmChartRepository with an arbitrary URL that the console pod fetches server-side, bypassing tenant egress restrictions. Combined with catalog metadata poisoning and admin-mediated chart installation, this enables privilege escalation.
SSVC
Exploitation: none Automatable: no Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-08-11 17:41 UTC
CWE
  • CWE-918 - Server-Side Request Forgery (SSRF)
References
URL Tags
https://access.redhat.com/errata/RHSA-2026:54188 vendor-advisoryx_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2026:54206 vendor-advisoryx_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2026:54545 vendor-advisoryx_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2026:54555 vendor-advisoryx_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2026:54583 vendor-advisoryx_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2026:54602 vendor-advisoryx_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2026:54770 vendor-advisoryx_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2026:56789 vendor-advisoryx_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2026:56854 vendor-advisoryx_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2026:56912 vendor-advisoryx_refsource_REDHAT
https://access.redhat.com/security/cve/CVE-2026-50237 vdb-entryx_refsource_REDHAT
https://bugzilla.redhat.com/show_bug.cgi?id=2484746 issue-trackingx_refsource_REDHAT
Impacted products
Vendor Product Version
Red Hat Red Hat OpenShift Container Platform 4.12 Unaffected: 1786511587 , < * (rpm)
    cpe:/a:redhat:openshift:4.12::el9
Create a notification for this product.
Red Hat Red Hat OpenShift Container Platform 4.13 Unaffected: 1786477760 , < * (rpm)
    cpe:/a:redhat:openshift:4.13::el9
Create a notification for this product.
Red Hat Red Hat OpenShift Container Platform 4.14 Unaffected: 1787056403 , < * (rpm)
    cpe:/a:redhat:openshift:4.14::el9
Create a notification for this product.
Red Hat Red Hat OpenShift Container Platform 4.15 Unaffected: 1787028559 , < * (rpm)
    cpe:/a:redhat:openshift:4.15::el9
Create a notification for this product.
Red Hat Red Hat OpenShift Container Platform 4.16 Unaffected: 1787054159 , < * (rpm)
    cpe:/a:redhat:openshift:4.16::el9
Create a notification for this product.
Red Hat Red Hat OpenShift Container Platform 4.18 Unaffected: 1786540776 , < * (rpm)
    cpe:/a:redhat:openshift:4.18::el9
Create a notification for this product.
Red Hat Red Hat OpenShift Container Platform 4.19 Unaffected: 1786486822 , < * (rpm)
    cpe:/a:redhat:openshift:4.19::el9
Create a notification for this product.
Red Hat Red Hat OpenShift Container Platform 4.20 Unaffected: 1786534931 , < * (rpm)
    cpe:/a:redhat:openshift:4.20::el9
Create a notification for this product.
Red Hat Red Hat OpenShift Container Platform 4.21 Unaffected: 1786574043 , < * (rpm)
    cpe:/a:redhat:openshift:4.21::el9
Create a notification for this product.
Red Hat Red Hat OpenShift Container Platform 4.22 Unaffected: 1786607915 , < * (rpm)
    cpe:/a:redhat:openshift:4.22::el9
Create a notification for this product.
Date Public
2026-08-11 09:47
Show details on NVD website

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CVE-2026-50236 (GCVE-0-2026-50236)

Vulnerability from cvelistv5 – Published: 2026-08-11 11:23 – Updated: 2026-08-26 16:15
VLAI
Title
Openshift/console: authenticated ssrf with full response reflection and path neutralization via dev console webhook helpers in openshift console
Summary
An authenticated SSRF flaw was found in the OpenShift Console Dev Console webhook helpers. User-supplied target URLs are fetched server-side without validation, with path neutralization enabling arbitrary endpoint targeting and full response reflection from the console pod's privileged network position.
SSVC
Exploitation: none Automatable: no Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-08-11 15:03 UTC
CWE
  • CWE-918 - Server-Side Request Forgery (SSRF)
References
URL Tags
https://access.redhat.com/errata/RHSA-2026:54545 vendor-advisoryx_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2026:54555 vendor-advisoryx_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2026:54583 vendor-advisoryx_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2026:54602 vendor-advisoryx_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2026:54770 vendor-advisoryx_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2026:56789 vendor-advisoryx_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2026:56854 vendor-advisoryx_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2026:56912 vendor-advisoryx_refsource_REDHAT
https://access.redhat.com/security/cve/CVE-2026-50236 vdb-entryx_refsource_REDHAT
https://bugzilla.redhat.com/show_bug.cgi?id=2484745 issue-trackingx_refsource_REDHAT
Impacted products
Vendor Product Version
Red Hat Red Hat OpenShift Container Platform 4.14 Unaffected: 1787056403 , < * (rpm)
    cpe:/a:redhat:openshift:4.14::el9
Create a notification for this product.
Red Hat Red Hat OpenShift Container Platform 4.15 Unaffected: 1787028559 , < * (rpm)
    cpe:/a:redhat:openshift:4.15::el9
Create a notification for this product.
Red Hat Red Hat OpenShift Container Platform 4.16 Unaffected: 1787054159 , < * (rpm)
    cpe:/a:redhat:openshift:4.16::el9
Create a notification for this product.
Red Hat Red Hat OpenShift Container Platform 4.18 Unaffected: 1786540776 , < * (rpm)
    cpe:/a:redhat:openshift:4.18::el9
Create a notification for this product.
Red Hat Red Hat OpenShift Container Platform 4.19 Unaffected: 1786486822 , < * (rpm)
    cpe:/a:redhat:openshift:4.19::el9
Create a notification for this product.
Red Hat Red Hat OpenShift Container Platform 4.20 Unaffected: 1786534931 , < * (rpm)
    cpe:/a:redhat:openshift:4.20::el9
Create a notification for this product.
Red Hat Red Hat OpenShift Container Platform 4.21 Unaffected: 1786574043 , < * (rpm)
    cpe:/a:redhat:openshift:4.21::el9
Create a notification for this product.
Red Hat Red Hat OpenShift Container Platform 4.22 Unaffected: 1786607915 , < * (rpm)
    cpe:/a:redhat:openshift:4.22::el9
Create a notification for this product.
Date Public
2026-08-11 09:36
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.