Common Weakness Enumeration
CWE-807
AllowedReliance on Untrusted Inputs in a Security Decision
Abstraction: Base · Status: Incomplete
The product uses a protection mechanism that relies on the existence or values of an input, but the input can be modified by an untrusted actor in a way that bypasses the protection mechanism.
179 vulnerabilities reference this CWE, most recent first.
CVE-2026-16093 (GCVE-0-2026-16093)
Vulnerability from cvelistv5 – Published: 2026-07-17 16:42 – Updated: 2026-08-31 15:01
VLAI
EPSS
VEX
Title
Keycloak-services: keycloak-services: required signed-jwt assertion policy can be bypassed with unsigned assertion headers
Summary
Keycloak provides a mechanism called Client Policies to enforce security requirements on clients, such as requiring them to use signed JWTs for authentication. A flaw was discovered where this enforcement can be bypassed. An attacker with valid client credentials can provide a fake, unsigned assertion header that tricks the system into thinking the policy requirements have been met. This allows the attacker to authenticate using simpler methods like a client secret even when the administrator has mandated more secure, signed assertions.
Severity
5.4 (Medium)
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-07-21 01:45 UTC
CWE
- CWE-807 - Reliance on Untrusted Inputs in a Security Decision
Assigner
References
2 references
| URL | Tags |
|---|---|
| https://access.redhat.com/security/cve/CVE-2026-16093 | vdb-entryx_refsource_REDHAT |
| https://bugzilla.redhat.com/show_bug.cgi?id=2501729 | issue-trackingx_refsource_REDHAT |
Impacted products
4 products
| Vendor | Product | Version | |
|---|---|---|---|
| Red Hat | Red Hat Build of Keycloak |
cpe:/a:redhat:build_keycloak:
|
|
| Red Hat | Red Hat Data Grid 8 |
cpe:/a:redhat:jboss_data_grid:8
|
|
| Red Hat | Red Hat JBoss Enterprise Application Platform Expansion Pack |
cpe:/a:redhat:jbosseapxp
|
|
| Red Hat | Red Hat Single Sign-On 7 |
cpe:/a:redhat:red_hat_single_sign_on:7
|
Date Public
2026-07-16 17:01
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CVE-2026-13059 (GCVE-0-2026-13059)
Vulnerability from cvelistv5 – Published: 2026-07-22 19:21 – Updated: 2026-07-24 03:56
VLAI
EPSS
VEX
Title
Improper Validation of Client-Supplied Command Parameters Allowing Role-Based Access Control Bypass
Summary
An authenticated user with low privileges may be able to perform unauthorized reads and writes on data protected by role-based query-level access controls, due to insufficient validation of certain client-supplied command parameters. The issue affects find, update, delete, and aggregate commands in non-apiStrict configurations.
Severity
SSVC
Exploitation: none
Automatable: no
Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-07-23 00:00 UTC
CWE
- CWE-807 - Reliance on Untrusted Inputs in a Security Decision
Assigner
References
1 reference
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| MongoDB | MongoDB Server |
Affected:
7.0 , < 7.0.39
(semver)
Affected: 8.0 , < 8.0.28 (semver) Affected: 8.2.0 , < 8.2.12 (semver) Affected: 8.3.0 , < 8.3.7 (semver) |
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CVE-2026-12058 (GCVE-0-2026-12058)
Vulnerability from cvelistv5 – Published: 2026-06-12 08:02 – Updated: 2026-06-12 13:47
VLAI
EPSS
VEX
Summary
The connection confirmation pop-up of a specific feature in the PcSuite can be bypassed.
Severity
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-06-12 13:45 UTC
CWE
- CWE-807 - Reliance on untrusted inputs in a security decision
Assigner
References
1 reference
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CVE-2026-9561 (GCVE-0-2026-9561)
Vulnerability from cvelistv5 – Published: 2026-07-14 07:59 – Updated: 2026-07-14 12:22
VLAI
EPSS
VEX
Summary
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Severity
SSVC
Exploitation: none
Automatable: yes
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-07-14 12:21 UTC
CWE
Assigner
References
1 reference
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| Eclipse Foundation | Eclipse Kura |
Affected:
5.0.0 , ≤ 5.6.1
(semver)
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CVE-2026-9077 (GCVE-0-2026-9077)
Vulnerability from cvelistv5 – Published: 2026-08-05 16:24 – Updated: 2026-08-05 18:11
VLAI
EPSS
VEX
Title
Reliance on Untrusted Inputs in a Security Decision vulnerabilities in Model Context Protocol features
Summary
IBM Langflow OSS 1.0.0 through 1.10.3 Langflow allows remote authenticated attackers to bypass localhost-only restrictions and write arbitrary MCP server configurations to IDE configuration files on the host system.
Severity
8.5 (High)
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-08-05 18:11 UTC
CWE
- CWE-807 - Reliance on Untrusted Inputs in a Security Decision
Assigner
References
1 reference
| URL | Tags |
|---|---|
| https://www.ibm.com/support/pages/node/7282147 | vendor-advisorypatch |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| IBM | Langflow OSS |
Affected:
1.0.0 , ≤ 1.10.3
(semver)
cpe:2.3:a:ibm:langflow_oss:1.0.0:*:*:*:*:*:*:* cpe:2.3:a:ibm:langflow_oss:1.10.3:*:*:*:*:*:*:* |
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CVE-2026-6213 (GCVE-0-2026-6213)
Vulnerability from cvelistv5 – Published: 2026-05-08 09:04 – Updated: 2026-05-11 07:48
VLAI
EPSS
VEX
Title
Remote Spark SparkView RCE
Summary
A vulnerability in Remote Spark SparkView before build 1122 allows an attacker to bypasses the local connection check and achieve arbitrary code execution as root on the server side. Depending on implementation the vulnerability can be exploited by an unauthenticated attacker.
Severity
SSVC
Exploitation: none
Automatable: yes
Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-05-08 12:44 UTC
CWE
Assigner
References
1 reference
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| Remote Spark (https://www.remotespark.com/) | SparkView |
Affected:
0 , < build 1122
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CVE-2026-1789 (GCVE-0-2026-1789)
Vulnerability from cvelistv5 – Published: 2026-04-23 23:38 – Updated: 2026-04-24 18:18
VLAI
EPSS
VEX
Summary
A vulnerability in the browser-based remote management interface may allow an administrator to access sensitive information on the device via crafted requests, affecting certain production printers and office/small office multifunction printers.
Severity
4.9 (Medium)
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-04-24 16:47 UTC
CWE
- CWE-807 - Reliance on Untrusted Inputs in a Security Decision
Assigner
References
4 references
| URL | Tags |
|---|---|
| https://psirt.canon/advisory-information/cp2026-003/ | vendor-advisory |
| https://canon.jp/support/support-info/260423vulne… | vendor-advisory |
| https://www.usa.canon.com/about-us/to-our-custome… | vendor-advisory |
| https://www.canon-europe.com/support/product-security/ | vendor-advisory |
Impacted products
15 products
| Vendor | Product | Version | |
|---|---|---|---|
| Canon Inc. | imagePRESS Series |
Affected:
all version
|
|
| Canon Inc. | imageFORCE Series |
Affected:
all version
|
|
| Canon Inc. | imageRUNNER ADVANCE Series |
Affected:
all version
|
|
| Canon Inc. | imageRUNNER Series |
Affected:
all version
|
|
| Canon Inc. | Satera MF7525F |
Affected:
v15.00 or earlier
|
|
| Canon Inc. | Satera MF7625F |
Affected:
v8.12 or earlier
|
|
| Canon Inc. | Satera MF7725F |
Affected:
v16.04 or earlier
|
|
| Canon Inc. | Satera MF842CDW |
Affected:
v16.04 or earlier
|
|
| Canon Inc. | imageCLASS X C1538iF II |
Affected:
v16.04 or earlier
|
|
| Canon Inc. | imageCLASS X MF1538C II |
Affected:
v16.04 or earlier
|
|
| Canon Inc. | i-SENSYS C1533iF II |
Affected:
v16.04 or earlier
|
|
| Canon Inc. | i-SENSYS X C1538 iF II |
Affected:
v16.04 or earlier
|
|
| Canon Inc. | i-SENSYS MF842Cdw |
Affected:
v16.04 or earlier
|
|
| Canon Inc. | MF842CDW |
Affected:
v16.04 or earlier
|
|
| Canon Inc. | MF842CX |
Affected:
v16.04 or earlier
|
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CVE-2026-0390 (GCVE-0-2026-0390)
Vulnerability from cvelistv5 – Published: 2026-04-14 16:57 – Updated: 2026-08-14 16:30
VLAI
EPSS
VEX
Title
UEFI Secure Boot Security Feature Bypass Vulnerability
Summary
Reliance on untrusted inputs in a security decision in Windows Boot Loader allows an authorized attacker to bypass a security feature locally.
Severity
SSVC
Exploitation: none
Automatable: no
Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-04-15 03:57 UTC
CWE
- CWE-807 - Reliance on Untrusted Inputs in a Security Decision
Assigner
References
1 reference
| URL | Tags |
|---|---|
| https://msrc.microsoft.com/update-guide/vulnerabi… | vendor-advisorypatch |
Impacted products
9 products
| Vendor | Product | Version | |
|---|---|---|---|
| Microsoft | Windows 10 Version 1607 |
Affected:
10.0.14393.0 , < 10.0.14393.9060
(custom)
|
|
| Microsoft | Windows 10 Version 1809 |
Affected:
10.0.17763.0 , < 10.0.17763.8644
(custom)
|
|
| Microsoft | Windows 10 Version 21H2 |
Affected:
10.0.19044.0 , < 10.0.19044.7184
(custom)
|
|
| Microsoft | Windows 10 Version 22H2 |
Affected:
10.0.19045.0 , < 10.0.19045.7184
(custom)
|
|
| Microsoft | Windows Server 2016 |
Affected:
10.0.14393.0 , < 10.0.14393.9060
(custom)
|
|
| Microsoft | Windows Server 2016 (Server Core installation) |
Affected:
10.0.14393.0 , < 10.0.14393.9060
(custom)
|
|
| Microsoft | Windows Server 2019 |
Affected:
10.0.17763.0 , < 10.0.17763.8644
(custom)
|
|
| Microsoft | Windows Server 2019 (Server Core installation) |
Affected:
10.0.17763.0 , < 10.0.17763.8644
(custom)
|
|
| Microsoft | Windows Server 2022 |
Affected:
10.0.20348.0 , < 10.0.20348.5020
(custom)
|
Date Public
2026-04-14 14:00
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CVE-2025-66577 (GCVE-0-2025-66577)
Vulnerability from cvelistv5 – Published: 2025-12-05 18:20 – Updated: 2025-12-05 18:29
VLAI
EPSS
VEX
Title
cpp-httplib Untrusted HTTP Header Handling: X-Forwarded-For/X-Real-IP Trust
Summary
cpp-httplib is a C++11 single-file header-only cross platform HTTP/HTTPS library. Prior to 0.27.0, a vulnerability allows attacker-controlled HTTP headers to influence server-visible metadata, logging, and authorization decisions. An attacker can supply X-Forwarded-For or X-Real-IP headers which get accepted unconditionally by get_client_ip() in docker/main.cc, causing access and error logs (nginx_access_logger / nginx_error_logger) to record spoofed client IPs (log poisoning / audit evasion). This vulnerability is fixed in 0.27.0.
Severity
5.3 (Medium)
SSVC
Exploitation: poc
Automatable: yes
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2025-12-05 18:29 UTC
CWE
Assigner
References
2 references
| URL | Tags |
|---|---|
| https://github.com/yhirose/cpp-httplib/security/a… | x_refsource_CONFIRM |
| https://github.com/yhirose/cpp-httplib/commit/ac9… | x_refsource_MISC |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| yhirose | cpp-httplib |
Affected:
< 0.27.0
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CVE-2025-66570 (GCVE-0-2025-66570)
Vulnerability from cvelistv5 – Published: 2025-12-05 18:18 – Updated: 2025-12-05 18:40
VLAI
EPSS
VEX
Title
cpp-httplib Untrusted HTTP Header Handling: Internal Header Shadowing (REMOTE*/LOCAL*)
Summary
cpp-httplib is a C++11 single-file header-only cross platform HTTP/HTTPS library. Prior to 0.27.0, a vulnerability allows attacker-controlled HTTP headers to influence server-visible metadata, logging, and authorization decisions. An attacker can inject headers named REMOTE_ADDR, REMOTE_PORT, LOCAL_ADDR, LOCAL_PORT that are parsed into the request header multimap via read_headers() in httplib.h (headers.emplace), then the server later appends its own internal metadata using the same header names in Server::process_request without erasing duplicates. Because Request::get_header_value returns the first entry for a header key (id == 0) and the client-supplied headers are parsed before server-inserted headers, downstream code that uses these header names may inadvertently use attacker-controlled values. Affected files/locations: cpp-httplib/httplib.h (read_headers, Server::process_request, Request::get_header_value, get_header_value_u64) and cpp-httplib/docker/main.cc (get_client_ip, nginx_access_logger, nginx_error_logger). Attack surface: attacker-controlled HTTP headers in incoming requests flow into the Request.headers multimap and into logging code that reads forwarded headers, enabling IP spoofing, log poisoning, and authorization bypass via header shadowing. This vulnerability is fixed in 0.27.0.
Severity
10 (Critical)
SSVC
Exploitation: none
Automatable: yes
Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2025-12-05 18:38 UTC
CWE
Assigner
References
2 references
| URL | Tags |
|---|---|
| https://github.com/yhirose/cpp-httplib/security/a… | x_refsource_CONFIRM |
| https://github.com/yhirose/cpp-httplib/commit/ac9… | x_refsource_MISC |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| yhirose | cpp-httplib |
Affected:
< 0.27.0
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"source": {
"advisory": "GHSA-xm2j-vfr9-mg9m",
"discovery": "UNKNOWN"
},
"title": "cpp-httplib Untrusted HTTP Header Handling: Internal Header Shadowing (REMOTE*/LOCAL*)"
}
},
"cveMetadata": {
"assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
"assignerShortName": "GitHub_M",
"cveId": "CVE-2025-66570",
"datePublished": "2025-12-05T18:18:02.928Z",
"dateReserved": "2025-12-04T16:17:35.386Z",
"dateUpdated": "2025-12-05T18:40:09.318Z",
"state": "PUBLISHED"
},
"dataType": "CVE_RECORD",
"dataVersion": "5.2"
}
Mitigation MIT-14
Architecture and Design
Strategy: Attack Surface Reduction
- Store state information and sensitive data on the server side only.
- Ensure that the system definitively and unambiguously keeps track of its own state and user state and has rules defined for legitimate state transitions. Do not allow any application user to affect state directly in any way other than through legitimate actions leading to state transitions.
- If information must be stored on the client, do not do so without encryption and integrity checking, or otherwise having a mechanism on the server side to catch tampering. Use a message authentication code (MAC) algorithm, such as Hash Message Authentication Code (HMAC) [REF-529]. Apply this against the state or sensitive data that has to be exposed, which can guarantee the integrity of the data - i.e., that the data has not been modified. Ensure that a strong hash function is used (CWE-328).
Mitigation MIT-4.2
Architecture and Design
Strategy: Libraries or Frameworks
- Use a vetted library or framework that does not allow this weakness to occur or provides constructs that make this weakness easier to avoid.
- With a stateless protocol such as HTTP, use a framework that maintains the state for you.
- Examples include ASP.NET View State [REF-756] and the OWASP ESAPI Session Management feature [REF-45].
- Be careful of language features that provide state support, since these might be provided as a convenience to the programmer and may not be considering security.
Mitigation MIT-15
Architecture and Design
For any security checks that are performed on the client side, ensure that these checks are duplicated on the server side, in order to avoid CWE-602. Attackers can bypass the client-side checks by modifying values after the checks have been performed, or by changing the client to remove the client-side checks entirely. Then, these modified values would be submitted to the server.
Mitigation MIT-16
Operation
Implementation
Strategy: Environment Hardening
When using PHP, configure the application so that it does not use register_globals. During implementation, develop the application so that it does not rely on this feature, but be wary of implementing a register_globals emulation that is subject to weaknesses such as CWE-95, CWE-621, and similar issues.
Mitigation MIT-6
Architecture and Design
Implementation
Strategy: Attack Surface Reduction
- Understand all the potential areas where untrusted inputs can enter your software: parameters or arguments, cookies, anything read from the network, environment variables, reverse DNS lookups, query results, request headers, URL components, e-mail, files, filenames, databases, and any external systems that provide data to the application. Remember that such inputs may be obtained indirectly through API calls.
- Identify all inputs that are used for security decisions and determine if you can modify the design so that you do not have to rely on submitted inputs at all. For example, you may be able to keep critical information about the user's session on the server side instead of recording it within external data.
No CAPEC attack patterns related to this CWE.