Common Weakness Enumeration

CWE-807

Weakness Allowed

Reliance 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.

Without sufficient encryption, integrity checking, or other mechanism, any input that originates from an outsider cannot be trusted.

Mapping guidance

This CWE entry is at the Base level of abstraction, which is a preferred level of abstraction for mapping to the root causes of vulnerabilities.

Carefully read both the name and description to ensure that this mapping is an appropriate fit. Do not try to 'force' a mapping to a lower-level Base/Variant simply to comply with this preferred level of abstraction.

Relationships and members
ChildOf: CWE-693 · View CWE-1000
Modes of introduction
Architecture and Design

COMMISSION: This weakness refers to an incorrect design related to an architectural security tactic.

Implementation

Developers may assume that inputs such as cookies, environment variables, and hidden form fields cannot be modified.

Detection methods

Manual Static Analysis

Since this weakness does not typically appear frequently within a single software package, manual white box techniques may be able to provide sufficient code coverage and reduction of false positives if all potentially-vulnerable operations can be assessed within limited time constraints.

Effectiveness: High

The effectiveness and speed of manual analysis will be reduced if the there is not a centralized security mechanism, and the security logic is widely distributed throughout the software.

Automated Static Analysis - Binary or Bytecode

According to SOAR [REF-1479], the following detection techniques may be useful:

Cost effective for partial coverage:

Bytecode Weakness Analysis - including disassembler + source code weakness analysis

Binary Weakness Analysis - including disassembler + source code weakness analysis

Effectiveness: SOAR Partial

Manual Static Analysis - Binary or Bytecode

According to SOAR [REF-1479], the following detection techniques may be useful:

Cost effective for partial coverage:

Binary / Bytecode disassembler - then use manual analysis for vulnerabilities & anomalies

Effectiveness: SOAR Partial

Dynamic Analysis with Automated Results Interpretation

According to SOAR [REF-1479], the following detection techniques may be useful:

Cost effective for partial coverage:

Web Application Scanner

Web Services Scanner

Database Scanners

Effectiveness: SOAR Partial

Dynamic Analysis with Manual Results Interpretation

According to SOAR [REF-1479], the following detection techniques may be useful:

Cost effective for partial coverage:

Fuzz Tester

Framework-based Fuzzer

Monitored Virtual Environment - run potentially malicious code in sandbox / wrapper / virtual machine, see if it does anything suspicious

Effectiveness: SOAR Partial

Manual Static Analysis - Source Code

According to SOAR [REF-1479], the following detection techniques may be useful:

Highly cost effective:

Manual Source Code Review (not inspections)

Effectiveness: High

Automated Static Analysis - Source Code

According to SOAR [REF-1479], the following detection techniques may be useful:

Cost effective for partial coverage:

Source code Weakness Analyzer

Context-configured Source Code Weakness Analyzer

Effectiveness: SOAR Partial

Architecture or Design Review

According to SOAR [REF-1479], the following detection techniques may be useful:

Highly cost effective:

Inspection (IEEE 1028 standard) (can apply to requirements, design, source code, etc.)

Formal Methods / Correct-By-Construction

Cost effective for partial coverage:

Attack Modeling

Effectiveness: High

Content history
Submission: CWE Content Team · MITRE · 2010-01-18 · CWE 1.8
Modification: CWE Content Team · MITRE · 2010-06-21 · CWE 1.9

updated Common_Consequences, Potential_Mitigations, References

Modification: CWE Content Team · MITRE · 2010-09-27 · CWE 1.10

updated Potential_Mitigations

Modification: CWE Content Team · MITRE · 2011-06-01 · CWE 1.13

updated Common_Consequences

Modification: CWE Content Team · MITRE · 2011-06-27 · CWE 2.0

updated Common_Consequences, Relationships

Modification: CWE Content Team · MITRE · 2011-09-13 · CWE 2.1

updated Potential_Mitigations, References, Relationships, Taxonomy_Mappings

Modification: CWE Content Team · MITRE · 2012-05-11 · CWE 2.2

updated Demonstrative_Examples, References, Relationships

Modification: CWE Content Team · MITRE · 2012-10-30 · CWE 2.3

updated Potential_Mitigations

Modification: CWE Content Team · MITRE · 2013-07-17 · CWE 2.5

updated Relationships

Modification: CWE Content Team · MITRE · 2014-02-18 · CWE 2.6

updated Potential_Mitigations

Modification: CWE Content Team · MITRE · 2014-07-30 · CWE 2.8

updated Detection_Factors

Modification: CWE Content Team · MITRE · 2017-01-19 · CWE 2.10

updated Related_Attack_Patterns

Modification: CWE Content Team · MITRE · 2017-11-08 · CWE 3.0

updated Likelihood_of_Exploit, Modes_of_Introduction, References, Relationships, Taxonomy_Mappings

Modification: CWE Content Team · MITRE · 2019-01-03 · CWE 3.2

updated Taxonomy_Mappings

Modification: CWE Content Team · MITRE · 2020-02-24 · CWE 4.0

updated Relationships

Modification: CWE Content Team · MITRE · 2021-10-28 · CWE 4.6

updated Relationships

Modification: CWE Content Team · MITRE · 2022-04-28 · CWE 4.7

updated Relationships

Modification: CWE Content Team · MITRE · 2023-01-31 · CWE 4.10

updated Description

Modification: CWE Content Team · MITRE · 2023-04-27 · CWE 4.11

updated Potential_Mitigations, References, Relationships

Modification: CWE Content Team · MITRE · 2023-06-29 · CWE 4.12

updated Mapping_Notes, Relationships

Modification: CWE Content Team · MITRE · 2025-09-09 · CWE 4.18

updated Detection_Factors, References

Modification: CWE Content Team · MITRE · 2025-12-11 · CWE 4.19

updated Applicable_Platforms, Relationships, Weakness_Ordinalities

Modification: CWE Content Team · MITRE · 2026-10-28 · CWE 5.0

updated Common_Consequences, Description, Modes_of_Introduction

250 vulnerabilities reference this CWE, most recent first.

CVE-2026-126758 (GCVE-0-2026-126758)

Vulnerability from cvelistv5 – Published: 2026-11-11 23:00 – Updated: 2026-11-13 18:31
VLAI
Title
Moonshot AI Kimi Code WorkspaceDirsService local.toml reliance on untrusted inputs in a security decision
Summary
A vulnerability was detected in Moonshot AI Kimi Code up to 2.0.2. This vulnerability affects unknown code of the file .kimi-code/local.toml of the component WorkspaceDirsService. Performing a manipulation of the argument additional_dir results in reliance on untrusted inputs in a security decision. The attack requires a local approach. The exploit is now public and may be used. Upgrading to version 2.1.0 is able to resolve this issue. Upgrading the affected component is recommended.
SSVC
Exploitation: poc Automatable: no Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-11-13 18:30 UTC
CWE
  • CWE-807 - Reliance on Untrusted Inputs in a Security Decision
  • CWE-20 - Improper Input Validation
Assigner
VulDB CNA under the mitre root
CNA scorecard B 83/100 over 3859 records in the last 180 days details
References
Impacted products
Vendor Product Version
Moonshot AI Kimi Code Affected: 2.0.0
Affected: 2.0.1
Affected: 2.0.2
Unaffected: 2.1.0
    cpe:2.3:a:moonshot_ai:kimi_code:*:*:*:*:*:*:*:*
Create a notification for this product.
Show details on NVD website

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CVE-2026-126129 (GCVE-0-2026-126129)

Vulnerability from cvelistv5 – Published: 2026-11-10 21:14 – Updated: 2026-11-10 21:14
VLAI
Summary
The Auth0 ASP.NET Core Authentication SDK incorrectly determines a session's OIDC Back-Channel Logout status, which may result in a logged-out session being accepted for access to protected endpoints.
Severity
No CVSS data available.
CWE
  • CWE-807 - Reliance on Untrusted Inputs in a Security Decision
  • CWE-287 - Improper Authentication
  • CWE-1254 - Incorrect Comparison Logic Granularity
Assigner
Okta CNA under the mitre root
CNA scorecard C 67/100 over 35 records in the last 180 days details
Impacted products
Vendor Product Version
Auth0 Auth0 ASP.NET Core Authentication Affected: 0 , < 1.12.0 (semver)
Create a notification for this product.
Show details on NVD website

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CVE-2026-125321 (GCVE-0-2026-125321)

Vulnerability from cvelistv5 – Published: 2026-11-10 17:36 – Updated: 2026-11-10 21:07
VLAI
Title
pgEdge Postgres MCP Server login rate limiting can be evaded by a caller-supplied header
Summary
pgEdge Postgres MCP Server enables SQL queries against PostgreSQL databases through Model Context Protocol compatible clients. Prior to 1.1.0, deployments exposing the nondefault HTTP transport with authentication enabled used the leftmost caller-supplied X-Forwarded-For value as the client address for login rate limiting. ExtractIPAddress in internal/auth/middleware.go supplied that value to IsAllowed and RecordFailedAttempt in internal/auth/rate_limiter.go, allowing an unauthenticated caller to rotate addresses to evade throttling or assert another user's address to consume that user's limiter bucket. The published nginx configuration appended rather than replaced X-Forwarded-For, making the issue reachable without an operator misconfiguration. Username-keyed account lockout did not use the client address, but shipped defaults disabled that separate control through MaxFailedAttemptsBeforeLockout: 0. This issue is fixed in version 1.1.0.
SSVC
Exploitation: none Automatable: yes Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-11-10 21:07 UTC
CWE
  • CWE-770 - Allocation of Resources Without Limits or Throttling
  • CWE-807 - Reliance on Untrusted Inputs in a Security Decision
Assigner
GitHub_M CNA under the mitre root
CNA scorecard C 72/100 over 7868 records in the last 180 days details
Impacted products
Show details on NVD website

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CVE-2026-121885 (GCVE-0-2026-121885)

Vulnerability from cvelistv5 – Published: 2026-11-10 14:34 – Updated: 2026-11-13 13:32
VLAI
Title
Podman: untrusted image labels allow auto-update to restart arbitrary systemd units
Summary
A flaw was found in Podman. An attacker can trigger a Denial of Service (DoS) by supplying a container image containing crafted metadata labels. Podman's auto-update mechanism improperly trusts these image labels to determine which system services to restart. If a user runs the malicious container and auto-update processes it, arbitrary system services are restarted with the user's privileges, potentially allowing an attacker to shut down the host system when Podman runs with administrative privileges.
SSVC
Exploitation: none Automatable: no Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-11-10 15:18 UTC
CWE
  • CWE-807 - Reliance on Untrusted Inputs in a Security Decision
Assigner
redhat CNA under the redhat root
CNA scorecard B 82/100 over 1200 records in the last 180 days details
Impacted products
Vendor Product Version
Affected: 1.8.2 , < 5.8.10 (semver)
Affected: 6.0.0 , < 6.2.0 (semver)
Red Hat Red Hat Hardened Images Unaffected: 6.1.4-1.4.hum1 , < * (rpm)
    cpe:/a:redhat:hummingbird:1
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Red Hat Red Hat Enterprise Linux 10     cpe:/a:redhat:enterprise_linux:10
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Red Hat Red Hat Enterprise Linux 8     cpe:/a:redhat:enterprise_linux:8
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Red Hat Red Hat Enterprise Linux 9     cpe:/a:redhat:enterprise_linux:9
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Red Hat Red Hat OpenShift Container Platform 4     cpe:/a:redhat:openshift:4
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Date Public
2026-11-10 14:00
Show details on NVD website

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CVE-2026-120977 (GCVE-0-2026-120977)

Vulnerability from cvelistv5 – Published: 2026-11-10 20:09 – Updated: 2026-11-13 13:53
VLAI
Title
Security Advisory 0217
Summary
On affected platforms running Arista EOS with 802.1X with Dynamic Host Configuration Protocol (DHCP) device profiling enabled, a network-adjacent attacker can send a crafted DHCP packet to force the device to record a spoofed device profile. This may potentially allow the authenticated supplicant to acquire unauthorized access to a network segment with elevated privileges.
SSVC
Exploitation: none Automatable: no Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-11-13 05:00 UTC
CWE
  • CWE-807 - Reliance on Untrusted Inputs in a Security Decision
Assigner
Arista CNA under the mitre root
CNA scorecard B 87/100 over 116 records in the last 180 days details
References
Impacted products
Vendor Product Version
Arista Networks EOS Affected: 4.31.2F , < 4.32.0F (custom)
Affected: 4.32.0F , < 4.33.0F (custom)
Affected: 4.33.0F , ≤ 4.33.9M (custom)
Affected: 4.34.0F , ≤ 4.34.7M (custom)
Affected: 4.35.0F , ≤ 4.35.5M (custom)
Affected: 4.36.0F , ≤ 4.36.2F (custom)
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Show details on NVD website

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CVE-2026-119148 (GCVE-0-2026-119148)

Vulnerability from cvelistv5 – Published: 2026-10-30 16:12 – Updated: 2026-10-30 18:08
VLAI
Title
Unvalidated parent-supplied AWS Region in AWS aws-nitro-enclaves-sdk-c allows impersonation of the enclave's AWS KMS endpoint
Summary
Incomplete string validation in AWS aws-nitro-enclaves-sdk-c before 0.4.6 may allow a third party to impersonate the AWS KMS endpoint. To remediate this issue, users should rebuild any custom enclave image against aws-nitro-enclaves-sdk-c 0.4.6.
SSVC
Exploitation: none Automatable: no Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-10-30 17:36 UTC
CWE
  • CWE-807 - Reliance on untrusted inputs in a security decision
Assigner
AMZN CNA under the mitre root
CNA scorecard A 94/100 over 163 records in the last 180 days details
Impacted products
Vendor Product Version
AWS aws-nitro-enclaves-sdk-c Affected: 0 , < 0.4.6 (custom)
    cpe:2.3:a:aws:aws-nitro-enclaves-sdk-c:*:*:*:*:*:*:*:*
Create a notification for this product.
Show details on NVD website

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CVE-2026-118154 (GCVE-0-2026-118154)

Vulnerability from cvelistv5 – Published: 2026-11-10 18:21 – Updated: 2026-11-13 18:10
VLAI
Title
Microsoft Exchange Server Elevation of Privilege Vulnerability
Summary
Reliance on untrusted inputs in a security decision in Microsoft Exchange Server allows an authorized attacker to elevate privileges over a network.
SSVC
Exploitation: none Automatable: no Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-11-10 19:44 UTC
CWE
  • CWE-807 - Reliance on Untrusted Inputs in a Security Decision
Assigner
microsoft CNA under the mitre root
CNA scorecard B 82/100 over 4926 records in the last 180 days details
References
Impacted products
Vendor Product Version
Microsoft Microsoft Exchange Server Subscription Edition RTM Affected: 15.02.0.0 , < 15.02.2562.057 (custom)
    cpe:2.3:a:microsoft:exchange_server_se:*:RTM:*:*:*:*:*:*
Create a notification for this product.
Date Public
2026-11-10 16:00
Show details on NVD website

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CVE-2026-116016 (GCVE-0-2026-116016)

Vulnerability from cvelistv5 – Published: 2026-10-24 11:40 – Updated: 2026-11-03 16:17
VLAI
Title
yudao-cloud through 2026.09 Data Permission Bypass via data-permission-enable Header
Summary
yudao-cloud through 2026.09 contains an authorization bypass vulnerability that allows authenticated users to evade row-level data scope restrictions by sending a data-permission-enable header set to false. Attackers can add this header to /admin-api requests, which DataPermissionRpcWebFilter trusts, to read or modify other departments' and users' records within the same tenant.
SSVC
Exploitation: poc Automatable: no Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-11-03 16:17 UTC
CWE
  • CWE-807 - Reliance on Untrusted Inputs in a Security Decision
Assigner
VulnCheck CNA under the mitre root
CNA scorecard B 84/100 over 8197 records in the last 180 days details
Impacted products
Vendor Product Version
YunaiV yudao-cloud Affected: 0 , ≤ 2026.09 (custom)
Create a notification for this product.
Date Public
2026-10-22 14:24
Show details on NVD website

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CVE-2026-114617 (GCVE-0-2026-114617)

Vulnerability from cvelistv5 – Published: 2026-10-22 21:25 – Updated: 2026-10-23 15:00
VLAI
Title
Authlib: ID token can disable its own nonce validation via the nonce_supported claim
Summary
Authlib is a Python library which builds OAuth and OpenID Connect servers. Prior to 1.9.0, OpenIDMixin.parse_id_token() reads the nonce_supported decision from the untrusted ID token being validated and sets the expected nonce to null when that claim is the JSON boolean false. In implicit and hybrid relying parties, or applications that directly accept externally supplied ID tokens, an attacker with a captured validly signed token can bypass the nonce-to-session binding and replay the victim's token into an attacker-controlled session. Plain authorization code flow is not affected, and the token must still pass signature, issuer, and audience validation. OpenIDMixin.parse_id_token() trusts nonce_supported in both authlib/integrations/base_client/sync_openid.py and authlib/integrations/base_client/async_openid.py to disable the expected nonce. This issue is fixed in version 1.9.0.
SSVC
Exploitation: none Automatable: no Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-10-23 14:48 UTC
CWE
  • CWE-294 - Authentication Bypass by Capture-replay
  • CWE-807 - Reliance on Untrusted Inputs in a Security Decision
Assigner
GitHub_M CNA under the mitre root
CNA scorecard C 72/100 over 7868 records in the last 180 days details
Impacted products
Vendor Product Version
authlib authlib Affected: < 1.9.0
Create a notification for this product.
Show details on NVD website

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CVE-2026-113422 (GCVE-0-2026-113422)

Vulnerability from cvelistv5 – Published: 2026-11-10 14:36 – Updated: 2026-11-10 14:36
VLAI
Summary
In Eclipse Kura versions 5.0.0 through 5.6.2, the Wire Graph update functionality of the Kura Web UI, and the Wire Service REST API v1 (available since 5.1.0, org.eclipse.kura.rest.wire.provider), determine whether a configuration update targets a Wire Component, Driver or Asset from the factory identifier supplied in the request, instead of the actual factory of the existing component. An authenticated identity holding only the Wires management permission (kura.wires.admin for the Web UI, rest.wires.admin for the REST API) can therefore modify the configuration of existing components that are not part of the Wire Graph, including security-relevant ones, or replace existing components. This allows escalation to full administrative privileges and can disrupt the device. Modifying arbitrary components requires at least one Driver to be installed on the device. The issue is fixed in Eclipse Kura 5.6.3.
Assigner
eclipse CNA under the mitre root
CNA scorecard C 66/100 over 219 records in the last 180 days details
Impacted products
Vendor Product Version
Eclipse Foundation Eclipse Kura Affected: 5.0.0 , ≤ 5.6.2 (semver)
Create a notification for this product.
Show details on NVD website

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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.