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.

5503 vulnerabilities reference this CWE, most recent first.

CVE-2026-50221 (GCVE-0-2026-50221)

Vulnerability from cvelistv5 – Published: 2026-06-23 17:03 – Updated: 2026-06-23 17:38
VLAI
Summary
In OpenStack Swift before 2.37.2, proxy-server does not strip internal update headers (X-Container-Host, X-Container-Device, X-Delete-At-Host, X-Delete-At-Device) from client requests before forwarding them to object-servers. An authenticated user with write access can inject these headers to redirect container update requests to an attacker-controlled server, enabling server-side request forgery. The SSRF requests expose internal cluster metadata including storage policy indexes, partition mappings, device names, and when at rest encryption is enabled, cipher text and initialization vectors for the container-level encryption key. The attacker can also cause "ghost listings" in arbitrary containers via the shard-range redirect mechanism.
SSVC
Exploitation: none Automatable: no Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-06-23 17:38 UTC
CWE
  • CWE-918 - Server-Side Request Forgery (SSRF)
Impacted products
Vendor Product Version
OpenStack Swift Affected: 2.0.0 , < 2.35.3 (semver)
Affected: 2.36.0 , < 2.36.2 (semver)
Affected: 2.37.0 , < 2.37.2 (semver)
    cpe:2.3:a:openstack:swift:*:*:*:*:*:*:*:*
    cpe:2.3:a:openstack:swift:*:*:*:*:*:*:*:*
    cpe:2.3:a:openstack:swift:*:*:*:*:*:*:*:*
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Show details on NVD website

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CVE-2026-50189 (GCVE-0-2026-50189)

Vulnerability from cvelistv5 – Published: 2026-06-24 21:35 – Updated: 2026-06-25 15:25
VLAI
Title
Appsmith: RCE via Supervisord XML-RPC Admin Interface Exposed via /supervisor Caddy Route
Summary
Appsmith is a platform to build admin panels, internal tools, and dashboards. Prior to 2.1, Appsmith's bundled supervisord exposes an XML-RPC interface on port 9001, reachable from outside the container via a Caddy reverse-proxy route at /supervisor/* on the public ingress. Combined with the APPSMITH_SUPERVISOR_PASSWORD exposed via GET /api/v1/admin/env, any authenticated administrator can send arbitrary XML-RPC calls to supervisord and execute OS commands inside the Docker container via twiddler.addProgramToGroup. This vulnerability is fixed in 2.1.
SSVC
Exploitation: poc Automatable: no Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-06-25 15:13 UTC
CWE
  • CWE-183 - Permissive List of Allowed Inputs
  • CWE-918 - Server-Side Request Forgery (SSRF)
References
Impacted products
Vendor Product Version
appsmithorg appsmith Affected: < 2.1
Create a notification for this product.
Show details on NVD website

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CVE-2026-50168 (GCVE-0-2026-50168)

Vulnerability from cvelistv5 – Published: 2026-06-22 15:39 – Updated: 2026-06-22 17:59
VLAI
Title
Angular: URL Parser Differential in @angular/platform-server leading to SSRF Allowlist Bypass
Summary
Angular is a development platform for building mobile and desktop web applications using TypeScript/JavaScript and other languages. Prior to 22.0.0-rc.2, 21.2.15, 20.3.22, and 19.2.23, an issue in the @angular/platform-server package allows remote attackers to bypass host allowlist constraints and direct server-side outgoing requests to arbitrary external endpoints. This occurs due to a parser differential between the strict WHATWG URL parser used for allowlist validation and the lenient Domino URL parser used to initialize the server emulated DOM. When a server-side request contains a malformed URL with a double port structure (e.g., http://evil.com:80:80/path), Node's strict URL.canParse(url) logic returns false and skips host check validation entirely. However, the same malformed URL is later accepted and parsed leniently by Domino's internal parser, which resolves the origin to http://evil.com:80. The Angular SSR HTTP request interceptor (relativeUrlsTransformerInterceptorFn) then resolves all relative backend HTTP requests against this adopted origin, executing the SSRF attack. This vulnerability is fixed in 22.0.0-rc.2, 21.2.15, 20.3.22, and 19.2.23.
SSVC
Exploitation: none Automatable: yes Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-06-22 17:59 UTC
CWE
  • CWE-346 - Origin Validation Error
  • CWE-918 - Server-Side Request Forgery (SSRF)
References
Impacted products
Vendor Product Version
angular angular Affected: >= 22.0.0-next.0, < 22.0.0-rc.2
Affected: >= 21.0.0-next.0, < 21.2.15
Affected: >= 20.0.0-next.0, < 20.3.22
Affected: >= 19.0.0-next.0, < 19.2.23
Affected: <= 18.2.14
Create a notification for this product.
Show details on NVD website

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CVE-2026-50151 (GCVE-0-2026-50151)

Vulnerability from cvelistv5 – Published: 2026-07-17 19:41 – Updated: 2026-07-20 13:52
VLAI
Title
oras-go: credential forwarding via unvalidated Location header in blob upload
Summary
oras-go is a Go library for managing OCI artifacts. Prior to 2.6.1, registry/remote/repository.go in blobStore.completePushAfterInitialPost follows a registry-controlled Location header during monolithic blob upload and reuses the Authorization header from the initial POST request for the subsequent PUT request, allowing a malicious registry to return a cross-host Location and receive the caller's credentials at an attacker-controlled endpoint. This issue is fixed in version 2.6.1.
SSVC
Exploitation: poc Automatable: yes Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-07-20 13:52 UTC
CWE
  • CWE-918 - Server-Side Request Forgery (SSRF)
Impacted products
Vendor Product Version
oras-project oras-go Affected: < 2.6.1
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CVE-2026-50143 (GCVE-0-2026-50143)

Vulnerability from cvelistv5 – Published: 2026-08-18 17:51 – Updated: 2026-08-18 19:30
VLAI
Title
Actor MCP path authority injection leaks Apify token
Summary
The Apify MCP server enables AI agents to extract data from websites using ready-made scrapers, crawlers, and automation tools available on the Apify Store. Prior to 0.10.11, getActorMCPServerURL in src/mcp/actors.ts concatenates the trusted Actor standby URL with the attacker-controlled webServerMcpPath from an Actor definition without verifying the resulting origin, allowing a malicious Actor publisher to use a userinfo-style authority value to redirect connectMCPClient to a third-party host. The call-actor, fetch-actor-details, and actor-mcp tool-loading paths pass this URL to transports in src/mcp/client.ts that attach the victim Authorization bearer token, exposing the Apify API token and enabling access to Actors, stored data, and billable compute. A victim must invoke or inspect the attacker-controlled Actor. This issue is fixed in version 0.10.11.
SSVC
Exploitation: poc Automatable: no Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-08-18 19:30 UTC
CWE
  • CWE-918 - Server-Side Request Forgery (SSRF)
Impacted products
Vendor Product Version
apify apify-mcp-server Affected: < 0.10.11
Create a notification for this product.
Show details on NVD website

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CVE-2026-50134 (GCVE-0-2026-50134)

Vulnerability from cvelistv5 – Published: 2026-07-06 19:42 – Updated: 2026-07-07 16:57
VLAI
Title
Hugo: security.http.urls allow-list bypass via HTTP redirects
Summary
Hugo is a static site generator. From 0.91.0 until 0.162.0, resources.GetRemote enforces security.http.urls on the URL it is called with, but it did not re-validate intermediate URLs on HTTP 3xx redirects. An allowed server (or an attacker controlling its DNS or response) could therefore redirect the request to a host that the policy was meant to forbid and Hugo would fetch from the redirected target. The same bypass also lifted any host-shape restriction the operator had put in place. This vulnerability is fixed in 0.162.0.
SSVC
Exploitation: none Automatable: no Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-07-07 16:52 UTC
CWE
  • CWE-918 - Server-Side Request Forgery (SSRF)
Impacted products
Vendor Product Version
gohugoio hugo Affected: >= 0.91.0, < 0.162.0
Create a notification for this product.
Show details on NVD website

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CVE-2026-50131 (GCVE-0-2026-50131)

Vulnerability from cvelistv5 – Published: 2026-06-10 20:27 – Updated: 2026-06-11 14:16
VLAI
Title
Fedify has an incomplete SSRF mitigation after GHSA-p9cg-vqcc-grcx: validatePublicUrl allows special-use IPv4 ranges
Summary
Fedify is a TypeScript library for building federated server apps powered by ActivityPub. Fedify previously addressed SSRF/internal network access in GHSA-p9cg-vqcc-grcx by adding public URL validation before runtime document and media fetching. However, the IPv4 validation logic present starting in version 0.11.2 and prior to versions 1.9.12, 1.10.11, 2.0.19, 2.1.15, and 2.2.4 appears incomplete. The `validatePublicUrl()` protection relies on `isValidPublicIPv4Address()` to reject non-public IPv4 destinations. The function blocks common private and local ranges such as `10.0.0.0/8`, `127.0.0.0/8`, `169.254.0.0/16`, `172.16.0.0/12`, and `192.168.0.0/16`, but it still treats several special-use, reserved, multicast, benchmarking, and carrier-grade NAT IPv4 ranges as valid public destinations. Because this validation is used as an SSRF defense before outbound fetches, this appears to be an incomplete mitigation or bypass class for the previous SSRF issue. Versions 1.9.12, 1.10.11, 2.0.19, 2.1.15, and 2.2.4 contain an updated patch.
SSVC
Exploitation: poc Automatable: yes Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-06-11 14:15 UTC
CWE
  • CWE-918 - Server-Side Request Forgery (SSRF)
  • CWE-1286 - Improper Validation of Syntactic Correctness of Input
  • CWE-1389 - Incorrect Parsing of Numbers with Different Radices
References
Impacted products
Vendor Product Version
fedify-dev fedify Affected: >= 0.11.2, < 1.9.12
Affected: >= 1.10.0, < 1.10.11
Affected: >= 2.0.0, < 2.0.19
Affected: >= 2.1.0, < 2.1.15
Affected: >= 2.2.0, < 2.2.4
Create a notification for this product.
fedify-dev vocab-runtime Affected: < 2.0.19
Affected: >= 2.1.0, < 2.1.15
Affected: >= 2.2.0, < 2.2.4
Create a notification for this product.
Show details on NVD website

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CVE-2026-50127 (GCVE-0-2026-50127)

Vulnerability from cvelistv5 – Published: 2026-06-10 19:56 – Updated: 2026-06-11 14:09
VLAI
Title
Weblate SSRF: outbound URL guard misses the NAT64 well-known prefix (64:ff9b::/96)
Summary
Weblate is a web based localization tool. From version 5.15 to before version 2026.6, Weblate's VCS_RESTRICT_PRIVATE did not properly account for some transitional IPv6 ranges, multicast addresses, or some semi-private IPv4 ranges, which allowed some addresses to bypass private range restrictions. This issue has been patched in version 2026.6.
SSVC
Exploitation: none Automatable: no Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-06-11 14:09 UTC
CWE
  • CWE-918 - Server-Side Request Forgery (SSRF)
Impacted products
Vendor Product Version
WeblateOrg weblate Affected: >= 5.15, < 2026.6
Create a notification for this product.
Show details on NVD website

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CVE-2026-50112 (GCVE-0-2026-50112)

Vulnerability from cvelistv5 – Published: 2026-08-21 08:29 – Updated: 2026-08-22 03:56
VLAI
Title
Apache CloudStack: RCE and SSRF in direct download, metalink and NFS templates
Summary
SSRF via Metalink Mirror URL Resolution: An authenticated tenant can register a template pointing to an attacker-controlled metalink file containing internal targets. The Secondary Storage VM will retrieve the data and persist it as a template file, which can later be downloaded through normal APIs. RCE on KVM hypervisor via NFS, Metalink files with/without Direct Downloads: An authenticated CloudStack tenant holding the default User role can execute arbitrary shell commands as root on the KVM hypervisor host that runs other tenants' VMs. This is cross-tenant root on the underlying compute, reachable via the public CloudStack API. When a User registers a VM template with directDownload=true and a URL pointing to a .metalink file, the management server fetches the metalink XML and dispatches download to the KVM agent. Inner URLs inside the metalink XML are never re-validated against the scheme allowlist. These issues affect Apache CloudStack: from 4.14.0.0 through 4.20.3.0 and from 4.21.0.0 through 4.22.1.0. Users are recommended to upgrade to version 4.20.3.1 or 4.22.1.1 or later, which fixes the issue.
SSVC
Exploitation: none Automatable: no Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-08-21 00:00 UTC
CWE
  • CWE-78 - Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection')
  • CWE-918 - Server-Side Request Forgery (SSRF)
References
Impacted products
Vendor Product Version
Apache Software Foundation Apache CloudStack Affected: 4.14.0.0 , ≤ 4.20.3.0 (semver)
Affected: 4.21.0.0 , ≤ 4.22.1.0 (semver)
Create a notification for this product.
Show details on NVD website

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CVE-2026-49979 (GCVE-0-2026-49979)

Vulnerability from cvelistv5 – Published: 2026-06-24 21:38 – Updated: 2026-06-26 18:43
VLAI
Title
Appsmith: SSRF via `POST /api/v1/admin/send-test-email` — JavaMail Bypasses WebClient IP Filter
Summary
Appsmith is a platform to build admin panels, internal tools, and dashboards. Prior to 1.99, the POST /api/v1/admin/send-test-email endpoint accepts attacker-controlled smtpHost and smtpPort values and establishes a raw JavaMail TCP connection without any IP validation. This completely bypasses WebClientUtils.IP_CHECK_FILTER, which only applies to Spring WebClient HTTP requests. Additionally, the raw MailException.getMessage() is returned verbatim in the API error response, enabling error-based internal port scanning and service banner enumeration. This vulnerability is fixed in 1.99.
SSVC
Exploitation: none Automatable: no Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-06-26 17:51 UTC
CWE
  • CWE-209 - Generation of Error Message Containing Sensitive Information
  • CWE-918 - Server-Side Request Forgery (SSRF)
References
Impacted products
Vendor Product Version
appsmithorg appsmith Affected: < 1.99
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.