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.
3206 vulnerabilities reference this CWE, most recent first.
CVE-2026-101150 (GCVE-0-2026-101150)
Vulnerability from cvelistv5 – Published: 2026-10-06 19:37 – Updated: 2026-10-06 19:50
VLAI
EPSS
VEX
Title
Security Advisory 0186
Summary
Insufficient validation of OIDC bearer token configuration could allow a user with specific high privileges to direct requests to arbitrary destinations.
Severity
4.1 (Medium)
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-10-06 19:50 UTC
CWE
- CWE-918 - Server-Side Request Forgery (SSRF)
Assigner
Arista
CNA
References
1 reference
| URL | Tags |
|---|---|
| https://www.arista.com/en/support/advisories-noti… | vendor-advisory |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| Arista Networks | CloudVision Portal |
Affected:
2026.2.0
(custom)
Affected: 2026.1.0 , ≤ 2026.1.2 (custom) Affected: 2025.3.0 , ≤ 2025.3.3 (custom) Affected: 2023.3.0 , < 2025.3.0 (custom) |
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CVE-2026-101149 (GCVE-0-2026-101149)
Vulnerability from cvelistv5 – Published: 2026-10-06 19:37 – Updated: 2026-10-06 19:51
VLAI
EPSS
VEX
Title
Security Advisory 0186
Summary
Insufficient validation of OIDC SSO provider configuration could allow a user with specific high privileges to direct requests to arbitrary destinations.
Severity
4.1 (Medium)
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-10-06 19:51 UTC
CWE
- CWE-918 - Server-Side Request Forgery (SSRF)
Assigner
Arista
CNA
References
1 reference
| URL | Tags |
|---|---|
| https://www.arista.com/en/support/advisories-noti… | vendor-advisory |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| Arista Networks | CloudVision Portal |
Affected:
2026.2.0
(custom)
Affected: 2026.1.0 , ≤ 2026.1.2 (custom) Affected: 2025.3.0 , ≤ 2025.3.3 (custom) Affected: 2020.3.0 , < 2025.3.0 (custom) |
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CVE-2026-101087 (GCVE-0-2026-101087)
Vulnerability from cvelistv5 – Published: 2026-09-27 20:49 – Updated: 2026-09-30 14:12
VLAI
EPSS
VEX
Title
Nezha 2.0.10 through 2.3.2 SSRF Denylist Bypass IPv6
Summary
Nezha versions 2.0.10 through 2.3.2 use a restricted HTTP client to validate user-configurable notification and DDNS webhook URLs, but the denylist did not cover IPv6 transition ranges — specifically the 6to4 prefix 2002::/16 and the local-use IPv4/IPv6 translation prefix 64:ff9b:1::/48. Because such addresses satisfy Go's netip.Addr.IsGlobalUnicast check, the URL validator accepted them. An authenticated user able to configure a webhook may be able to cause the dashboard to issue requests to an otherwise restricted IPv6 endpoint, but only where the dashboard's network provides unusual or non-standards-compliant routing for these transition ranges; no direct path to an IPv4 metadata, loopback, or private-network HTTP request has been demonstrated. The issue is fixed in version 2.3.3 (commit d1fcde8e), which blocks both prefixes.
Severity
4.3 (Medium)
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-09-30 14:12 UTC
CWE
- CWE-918 - Server-Side Request Forgery (SSRF)
Assigner
VulnCheck
CNA
References
3 references
| URL | Tags |
|---|---|
| https://github.com/nezhahq/nezha/security/advisor… | vendor-advisory |
| https://github.com/nezhahq/nezha/commit/d1fcde8e | patch |
| https://www.vulncheck.com/advisories/nezha-2.0.10… | third-party-advisory |
Impacted products
Date Public
2026-08-11 00:00
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CVE-2026-101064 (GCVE-0-2026-101064)
Vulnerability from cvelistv5 – Published: 2026-09-27 20:49 – Updated: 2026-09-28 13:01
VLAI
EPSS
VEX
Title
Obot before v0.23.0 Server-Side Request Forgery via MCP
Summary
Obot before v0.23.0 contains a server-side request forgery vulnerability in remote MCP server registration that allows privileged users to specify arbitrary URLs without destination validation. Attackers with Power User or higher roles can coerce Obot to make requests to internal services and cloud metadata endpoints, reading responses in error messages to disclose sensitive credentials.
Severity
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-09-28 13:01 UTC
CWE
- CWE-918 - Server-Side Request Forgery (SSRF)
Assigner
VulnCheck
CNA
References
2 references
| URL | Tags |
|---|---|
| https://github.com/obot-platform/obot/security/ad… | vendor-advisory |
| https://www.vulncheck.com/advisories/obot-before-… | third-party-advisory |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| obot-platform | obot |
Affected:
0 , < 0.23.0
(semver)
Unaffected: 0.23.0 (semver) |
Date Public
2026-06-22 00:00
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CVE-2026-101061 (GCVE-0-2026-101061)
Vulnerability from cvelistv5 – Published: 2026-09-27 17:02 – Updated: 2026-09-30 14:14
VLAI
EPSS
VEX
Title
utcp-gql and utcp-websocket before 1.1.1 SSRF via URL validation bypass
Summary
utcp-gql before 1.1.1 and utcp-websocket before 1.1.1 contain server-side request forgery vulnerabilities due to incomplete application of CVE-2026-44661 fixes. The GraphQL plugin uses a vulnerable prefix check allowing bypass URLs like http://127.0.0.1.attacker.example, while the WebSocket plugin performs no URL validation despite documented security requirements. Attackers can force connections to internal services and cloud metadata endpoints by supplying malicious tool URLs in call templates, and receive configured API keys and OAuth tokens sent to attacker-controlled hosts.
Severity
SSVC
Exploitation: poc
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-09-30 14:14 UTC
CWE
- CWE-918 - Server-Side Request Forgery (SSRF)
Assigner
VulnCheck
CNA
References
2 references
| URL | Tags |
|---|---|
| https://github.com/universal-tool-calling-protoco… | vendor-advisory |
| https://www.vulncheck.com/advisories/utcp-gql-and… | third-party-advisory |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| universal-tool-calling-protocol | python-utcp |
Affected:
0 , < 1.1.1
(semver)
Unaffected: 1.1.1 (semver) |
Date Public
2026-06-14 00:00
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CVE-2026-101060 (GCVE-0-2026-101060)
Vulnerability from cvelistv5 – Published: 2026-09-27 17:02 – Updated: 2026-09-28 13:11
VLAI
EPSS
VEX
Title
python-utcp before 1.1.4 SSRF via unvalidated HTTP redirects
Summary
python-utcp versions before 1.1.4 contain a server-side request forgery vulnerability in HttpCommunicationProtocol.call_tool that validates the initial tool URL but follows HTTP redirects without re-validating the target. Attackers controlling a tool endpoint can return a 302 redirect to internal services, allowing the UTCP client to reach cloud metadata endpoints or internal HTTP services and return their response bodies to the caller.
Severity
SSVC
Exploitation: poc
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-09-28 13:11 UTC
CWE
- CWE-918 - Server-Side Request Forgery (SSRF)
Assigner
VulnCheck
CNA
References
2 references
| URL | Tags |
|---|---|
| https://github.com/universal-tool-calling-protoco… | vendor-advisory |
| https://www.vulncheck.com/advisories/python-utcp-… | third-party-advisory |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| universal-tool-calling-protocol | python-utcp |
Affected:
0 , < 1.1.4
(semver)
Unaffected: 1.1.4 (semver) |
Date Public
2026-06-14 00:00
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CVE-2026-101059 (GCVE-0-2026-101059)
Vulnerability from cvelistv5 – Published: 2026-09-27 17:02 – Updated: 2026-09-28 14:02
VLAI
EPSS
VEX
Title
utcp-http before 1.1.4 OAuth2 tokenUrl Trust Boundary Bypass
Summary
utcp-http before 1.1.4 fails to validate the OAuth2 tokenUrl field from remote OpenAPI specifications, allowing attackers to redirect credential submission to arbitrary endpoints. When a victim registers an attacker-controlled OpenAPI spec and invokes a generated OAuth2-protected tool, the library POSTs the victim's client_id and client_secret to the attacker-supplied token endpoint without URL validation.
Severity
SSVC
Exploitation: poc
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-09-28 14:00 UTC
CWE
- CWE-918 - Server-Side Request Forgery (SSRF)
Assigner
VulnCheck
CNA
References
2 references
| URL | Tags |
|---|---|
| https://github.com/universal-tool-calling-protoco… | vendor-advisory |
| https://www.vulncheck.com/advisories/utcp-http-be… | third-party-advisory |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| universal-tool-calling-protocol | python-utcp |
Affected:
0 , < 1.1.4
(semver)
Unaffected: 1.1.4 (semver) |
Date Public
2026-06-14 00:00
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CVE-2026-101058 (GCVE-0-2026-101058)
Vulnerability from cvelistv5 – Published: 2026-09-27 17:02 – Updated: 2026-09-30 22:06
VLAI
EPSS
VEX
Title
python-utcp before 1.1.12 SSRF via Remote HTTP Manual
Summary
python-utcp (pip package utcp-http) before 1.1.12 does not verify whether tool URLs declared in a hand-written UTCP manual point at the agent's own loopback interface when that manual is discovered from a remote, non-loopback origin. Because ensure_secure_url intentionally permits loopback HTTP for local development and native manuals bypassed the loopback check performed by the OpenAPI converter, an attacker who can serve a UTCP manual that a victim registers can cause the client to issue requests to services bound only to 127.0.0.1 on the victim host and have the response bodies returned to the caller (server-side request forgery). The http, sse and streamable_http protocols are all affected. Reach is limited to loopback, and exploitation further requires a loopback service that answers unauthenticated requests with useful data. Fixed in utcp-http 1.1.12, which rejects manuals fetched from a non-loopback origin that declare loopback tool URLs, keyed off the final post-redirect discovery URL.
Severity
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-09-30 22:06 UTC
CWE
- CWE-918 - Server-Side Request Forgery (SSRF)
Assigner
VulnCheck
CNA
References
2 references
| URL | Tags |
|---|---|
| https://github.com/universal-tool-calling-protoco… | vendor-advisory |
| https://www.vulncheck.com/advisories/python-utcp-… | third-party-advisory |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| universal-tool-calling-protocol | python-utcp |
Affected:
0 , < 1.1.12
(semver)
Unaffected: 1.1.12 (semver) |
Date Public
2026-09-05 00:00
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CVE-2026-101029 (GCVE-0-2026-101029)
Vulnerability from cvelistv5 – Published: 2026-10-06 19:23 – Updated: 2026-10-07 20:18
VLAI
EPSS
VEX
Title
Gitea migration and pull mirror SSRF through multi-answer DNS
Summary
Gitea's repository migration and pull mirror egress checks could be bypassed with a hostname that returns multiple DNS answers, because the address that was validated was not necessarily the address Git later connected to. A low-privileged user who can create migrations or mirrors could direct the server to internal services, reading from and writing to reachable internal Git or HTTP endpoints. Content from internal responses could additionally be disclosed through migration and mirror error messages.
Severity
4.3 (Medium)
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-10-07 20:17 UTC
CWE
Assigner
Gitea
CNA
References
5 references
| URL | Tags |
|---|---|
| https://github.com/go-gitea/gitea/security/adviso… | vendor-advisory |
| https://github.com/go-gitea/gitea/pull/39010 | patch |
| https://github.com/go-gitea/gitea/pull/39426 | patch |
| https://blog.gitea.com/release-of-28.0.0/ | release-notes |
| https://github.com/go-gitea/gitea/releases/tag/v28.0.0 | release-notes |
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CVE-2026-101022 (GCVE-0-2026-101022)
Vulnerability from cvelistv5 – Published: 2026-10-09 13:55 – Updated: 2026-10-09 16:46
VLAI
EPSS
VEX
Title
Grid Protection Alliance openPDC and openHistorian Server-Side Request Forgery (SSRF)
Summary
A Modbus connection feature on openPDC accepts a caller-specified destination address and port with no restriction on which internal hosts may be targeted. An authenticated user can attempt connections to arbitrary internal network destinations, revealing which destinations are reachable. With repeated attempts, an attacker may be able to map the internal network.
Severity
4.3 (Medium)
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-10-09 16:15 UTC
CWE
Assigner
icscert
CNA
References
Impacted products
3 products
| Vendor | Product | Version | |
|---|---|---|---|
| Grid Protection Alliance | openPDC |
Affected:
0 , < 2.9.477
(custom)
Affected: 0 , < 2.9.482 (custom) Unaffected: 2.9.482 |
|
| Grid Protection Alliance | openPDC (Docker image) |
Affected:
0 , < 2.9.477
(custom)
Affected: 0 , < 2.9.482 (custom) |
|
| Grid Protection Alliance | openHistorian |
Affected:
0 , < 2.8.580
(custom)
Affected: 0 , < 2.8.585 (custom) Unaffected: 2.8.585 |
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"engine": "Vulnogram 1.0.5"
}
}
},
"cveMetadata": {
"assignerOrgId": "7d14cffa-0d7d-4270-9dc0-52cabd5a23a6",
"assignerShortName": "icscert",
"cveId": "CVE-2026-101022",
"datePublished": "2026-10-09T13:55:29.163Z",
"dateReserved": "2026-10-05T16:54:01.628Z",
"dateUpdated": "2026-10-09T16:46:21.431Z",
"state": "PUBLISHED"
},
"dataType": "CVE_RECORD",
"dataVersion": "5.2"
}
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.