Common Weakness Enumeration
CWE-918
AllowedServer-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.
5688 vulnerabilities reference this CWE, most recent first.
CVE-2026-81357 (GCVE-0-2026-81357)
Vulnerability from cvelistv5 – Published: 2026-09-08 17:13 – Updated: 2026-09-10 23:06
VLAI
EPSS
VEX
Title
Visual Studio Code Security Feature Bypass Vulnerability
Summary
Server-side request forgery (ssrf) in Visual Studio Code allows an unauthorized attacker to bypass a security feature over a network.
Severity
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-09-09 18:57 UTC
CWE
- CWE-918 - Server-Side Request Forgery (SSRF)
Assigner
References
1 reference
| URL | Tags |
|---|---|
| https://msrc.microsoft.com/update-guide/vulnerabi… | vendor-advisorypatch |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| Microsoft | Visual Studio Code |
Affected:
1.0.0 , < 1.136.2
(custom)
cpe:2.3:a:microsoft:visual_studio_code:*:*:*:*:*:*:*:* |
Date Public
2026-09-08 14:00
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CVE-2026-81265 (GCVE-0-2026-81265)
Vulnerability from cvelistv5 – Published: 2026-09-10 21:31 – Updated: 2026-09-10 21:31
VLAI
EPSS
VEX
Title
Langflow is vulnerable to server-side request forgery due to missing egress validation on server-side URL fetches
Summary
IBM Langflow OSS 1.0.0 through 1.11.5.
Severity
7.5 (High)
CWE
- CWE-918 - Server-Side Request Forgery (SSRF)
Assigner
References
1 reference
| URL | Tags |
|---|---|
| https://www.ibm.com/support/pages/node/7286665 | vendor-advisorypatch |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| IBM | Langflow OSS |
Affected:
1.0.0 , ≤ 1.11.5
(semver)
cpe:2.3:a:ibm:langflow_oss:1.0.0:*:*:*:*:*:*:* cpe:2.3:a:ibm:langflow_oss:1.11.5:*:*:*:*:*:*:* |
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CVE-2026-81213 (GCVE-0-2026-81213)
Vulnerability from cvelistv5 – Published: 2026-09-10 21:32 – Updated: 2026-09-10 21:32
VLAI
EPSS
VEX
Title
Langflow is vulnerable to server-side request forgery due to missing egress validation on server-side URL fetches
Summary
IBM Langflow OSS 1.0.0 through 1.11.5 could allow a remote attacker to obtain sensitive information from internal network resources due to improper validation of user-supplied URLs.
Severity
8.6 (High)
CWE
- CWE-918 - Server-Side Request Forgery (SSRF)
Assigner
References
1 reference
| URL | Tags |
|---|---|
| https://www.ibm.com/support/pages/node/7286665 | vendor-advisorypatch |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| IBM | Langflow OSS |
Affected:
1.0.0 , ≤ 1.11.5
(semver)
cpe:2.3:a:ibm:langflow_oss:1.0.0:*:*:*:*:*:*:* cpe:2.3:a:ibm:langflow_oss:1.11.5:*:*:*:*:*:*:* |
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CVE-2026-81207 (GCVE-0-2026-81207)
Vulnerability from cvelistv5 – Published: 2026-09-10 21:35 – Updated: 2026-09-10 21:35
VLAI
EPSS
VEX
Title
DataStage on Cloud Pak for Data has several vulnerabilities due to open source software
Summary
IBM DataStage on Cloud Pak for Data 5.4.0.0 allows any authenticated tenant — with no project membership or role — fully controls scheme/host/port/path of an outbound fetch originating from a shared-infrastructure pod, and the WSDL body is reflected verbatim to the caller. The ds-canvas pod sits on the OpenShift overlay with reach to co-tenant services, in-cluster CP4D APIs, and link-local addresses. Scope is Changed, confidentiality High (response-reflecting), integrity Low (GET-only side-effects).
Severity
8.5 (High)
CWE
- CWE-918 - Server-Side Request Forgery (SSRF)
Assigner
References
1 reference
| URL | Tags |
|---|---|
| https://www.ibm.com/support/pages/node/7286562 | vendor-advisorypatch |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| IBM | DataStage on Cloud Pak for Data |
Affected:
5.4.0.0
cpe:2.3:a:ibm:datastage_on_cloud_pak_for_data:5.4.0.0:*:*:*:*:*:*:* |
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CVE-2026-81093 (GCVE-0-2026-81093)
Vulnerability from cvelistv5 – Published: 2026-08-27 14:50 – Updated: 2026-08-29 11:48
VLAI
EPSS
VEX
Title
Apify Actors MCP Server before 0.9.12 Server-Side Request Forgery via get-html-skeleton
Summary
The get-html-skeleton tool fetched a URL the caller supplied after checking only its syntax. The handler in src/tools/common/get_html_skeleton.ts validated the url argument with isValidHttpUrl from src/utils/generic.ts, which confirmed the string began with an http or https scheme and parsed as a URL and inspected neither the host name nor the address it resolves to. Loopback, link-local and private ranges therefore passed, including the address cloud providers use to serve instance metadata. The unchecked URL was handed to the web-browser actor and the fetched document was returned in the tool response, so any caller of the MCP server could make it request an endpoint reachable only from the host and read the result, including instance credentials. Version 0.9.12 removes the tool.
Severity
SSVC
Exploitation: none
Automatable: yes
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-08-27 18:49 UTC
CWE
- CWE-918 - Server-Side Request Forgery (SSRF)
Assigner
References
4 references
| URL | Tags |
|---|---|
| https://github.com/apify/apify-mcp-server | product |
| https://github.com/apify/apify-mcp-server/pull/572 | issue-trackingpatch |
| https://github.com/apify/apify-mcp-server/securit… | vendor-advisory |
| https://www.vulncheck.com/advisories/apify-actors… | third-party-advisory |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| apify | actors-mcp-server |
Affected:
0 , < 0.9.12
(semver)
|
Date Public
2026-08-26 00:00
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CVE-2026-81091 (GCVE-0-2026-81091)
Vulnerability from cvelistv5 – Published: 2026-08-27 14:50 – Updated: 2026-08-29 11:48
VLAI
EPSS
VEX
Title
mcp-use Inspector Proxy Server-Side Request Forgery via Caller-Supplied Target URL
Summary
The proxy middleware in mcp-use's inspector forwards requests to a destination the caller names. mountMcpProxy in libraries/typescript/packages/inspector/src/server/proxy/mcp-proxy.ts read the target from the X-Target-URL header or the __mcp_target parameter and proxied to it without inspecting the host, so loopback, link-local and private addresses were all accepted, as were names that resolve to them, and the validation was not reapplied to a redirect the destination returned. A caller could therefore make the server issue requests to addresses reachable only from the host it runs on and read the responses. The current code calls isSafeProxyTarget, which checks the resolved address against private, loopback and link-local ranges before proxying and bounds the number of redirects followed.
Severity
SSVC
Exploitation: none
Automatable: yes
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-08-27 18:12 UTC
CWE
- CWE-918 - Server-Side Request Forgery (SSRF)
Assigner
References
3 references
| URL | Tags |
|---|---|
| https://github.com/mcp-use/mcp-use | product |
| https://github.com/mcp-use/mcp-use/security/advis… | vendor-advisory |
| https://www.vulncheck.com/advisories/mcp-use-insp… | third-party-advisory |
Date Public
2026-08-26 00:00
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CVE-2026-80350 (GCVE-0-2026-80350)
Vulnerability from cvelistv5 – Published: 2026-08-26 10:09 – Updated: 2026-08-29 11:48
VLAI
EPSS
VEX
Title
OneUptime before 12.0.7 Server-Side Request Forgery via IPv4-Mapped IPv6 Webhook URL
Summary
OneUptime's webhook target check rejects private and loopback addresses given in IPv4 form and a small set of IPv6 forms, but has no case for the IPv4-mapped IPv6 range. The webhook delivery path calls SSRFProtection.validateWebhookTargetIsSafe, and the host-literal screening inside Common/Server/Utils/SSRFProtection.ts, performed by isBlockedHostnameLiteral, rejects private and loopback IPv4 ranges and tests an IPv6 value against the unspecified address, the loopback, the link-local prefix and the unique-local prefixes. A value such as [::ffff:127.0.0.1] matches none of them. The value is also recognised as an address literal rather than a name, so the path that re-checks addresses obtained from resolution is not taken. The HTTP client treats the mapped form as the embedded IPv4 address and connects to it, so an authenticated project member who can configure a webhook can direct the server at loopback services, private network ranges and link-local metadata endpoints, and the response is recorded where the webhook result can be read. Version 12.0.7 adds handling for the mapped range.
Severity
SSVC
Exploitation: poc
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-08-26 13:41 UTC
CWE
- CWE-918 - Server-Side Request Forgery (SSRF)
Assigner
References
5 references
| URL | Tags |
|---|---|
| https://github.com/OneUptime/oneuptime | product |
| https://github.com/OneUptime/oneuptime/security/a… | vendor-advisory |
| https://github.com/OneUptime/oneuptime/issues/2578 | issue-tracking |
| https://github.com/OneUptime/oneuptime/blob/12.0.… | technical-description |
| https://www.vulncheck.com/advisories/oneuptime-be… | third-party-advisory |
Impacted products
Date Public
2026-08-26 00:00
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CVE-2026-80347 (GCVE-0-2026-80347)
Vulnerability from cvelistv5 – Published: 2026-08-26 10:09 – Updated: 2026-08-26 12:05
VLAI
EPSS
VEX
Title
mcp-fetch through 1.6.3 Server-Side Request Forgery via Unstripped IPv6 Literal Brackets
Summary
mcp-fetch checks a fetch target against its SSRF guard without removing the brackets that surround an IPv6 literal. isSafeUrl reads the hostname from the parsed URL, which for a literal such as http://[::1]/ yields the bracketed string, and then tests it with net.isIP. That call returns zero for a bracketed value, so the branch holding the private-address checks is skipped entirely. The guard falls back to resolving the hostname, the bracketed string is not a resolvable name, no addresses are returned, and the target is reported safe. The HTTP client then strips the brackets and connects. Because the address may be given in IPv4-mapped form, the same path reaches any IPv4 target the loopback and private checks were meant to exclude, including link-local metadata endpoints. isPrivateIPv6 also has no case for the ::ffff: prefix, so the mapped form would still pass even if the brackets were removed. The fetch target is supplied as a tool argument, so an attacker who can influence what the model requests can read internal responses back into the model context.
Severity
SSVC
Exploitation: poc
Automatable: yes
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-08-26 12:05 UTC
CWE
- CWE-918 - Server-Side Request Forgery (SSRF)
Assigner
References
4 references
| URL | Tags |
|---|---|
| https://github.com/kazuph/mcp-fetch | product |
| https://github.com/kazuph/mcp-fetch/issues/16 | issue-tracking |
| https://www.npmjs.com/package/@kazuph/mcp-fetch | product |
| https://www.vulncheck.com/advisories/mcp-fetch-th… | third-party-advisory |
Date Public
2026-08-26 00:00
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CVE-2026-80181 (GCVE-0-2026-80181)
Vulnerability from cvelistv5 – Published: 2026-09-04 06:52 – Updated: 2026-09-08 18:57
VLAI
EPSS
VEX
Title
Apache Allura: Server-side request forgery
Summary
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This issue affects Apache Allura: through 1.20.0.
Users are recommended to upgrade to version 1.21.0, which fixes the issue.
Severity
9.1 (Critical)
SSVC
Exploitation: none
Automatable: yes
Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-09-08 18:57 UTC
CWE
- CWE-918 - Server-Side Request Forgery (SSRF)
Assigner
References
2 references
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| Apache Software Foundation | Apache Allura |
Affected:
0 , ≤ 1.20.0
(semver)
|
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CVE-2026-80123 (GCVE-0-2026-80123)
Vulnerability from cvelistv5 – Published: 2026-09-09 07:59 – Updated: 2026-09-09 13:01
VLAI
EPSS
VEX
Summary
Dell SCG 5.0 Appliance versions prior to 5.36.00.16 and Dell SCG 5.0 Application versions prior to 5.36.00.00, contains a Server-Side Request Forgery (SSRF) vulnerability. An unauthenticated attacker with remote access could potentially exploit this vulnerability, leading to denial of service.
Severity
7.3 (High)
SSVC
Exploitation: none
Automatable: yes
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-09-09 13:01 UTC
CWE
- CWE-918 - Server-Side Request Forgery (SSRF)
Assigner
References
1 reference
| URL | Tags |
|---|---|
| https://www.dell.com/support/kbdoc/en-in/00050342… | vendor-advisory |
Impacted products
2 products
| Vendor | Product | Version | |
|---|---|---|---|
| Dell | Secure Connect Gateway 5.0 - Application |
Affected:
0 , < 5.36.00.00 or later
(semver)
|
|
| Dell | Secure Connect Gateway 5.0 - Appliance |
Affected:
0 , < 5.36.00.16 or later
(semver)
|
Date Public
2026-08-31 06:30
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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.