Weakness (CWE)
CWE-209: Generation of Error Message Containing Sensitive Information
The product generates an error message that includes sensitive information about its environment, users, or associated data.
How to prevent it (7 mitigations)
-
Implementation
Ensure that error messages only contain minimal details that are useful to the intended audience and no one else. The messages need to strike the balance between being too cryptic (which can confuse users) or being too detailed (which may reveal more than intended). The messages should not reveal the methods that were used to determine the error. Attackers can use detailed information to refine or optimize their original attack, thereby increasing their chances of success.
If errors must be captured in some detail, record them in log messages, but consider what could occur if the log messages can be viewed by attackers. Highly sensitive information such as passwords should never be saved to log files.
Avoid inconsistent messaging that might accidentally tip off an attacker about internal state, such as whether a user account exists or not.
-
Implementation
Handle exceptions internally and do not display errors containing potentially sensitive information to a user.
-
Implementation
Use naming conventions and strong types to make it easier to spot when sensitive data is being used. When creating structures, objects, or other complex entities, separate the sensitive and non-sensitive data as much as possible.
-
Implementation, Build and Compilation
Debugging information should not make its way into a production release.
-
Implementation, Build and Compilation
Debugging information should not make its way into a production release.
-
System Configuration
Where available, configure the environment to use less verbose error messages. For example, in PHP, disable the display_errors setting during configuration, or at runtime using the error_reporting() function.
-
System Configuration
Create default error pages or messages that do not leak any information.
Source: MITRE CWE-209
520 results · Feed
-
Medium 5.3
AshAi sends unrecognized tool errors verbatim to MCP clients and the model, disclosing internal details
Generation of Error Message Containing Sensitive Information vulnerability in ash-project ash_ai allows a caller of an AshAi tool to read internal error details, including module names and data values, by making a tool call fail. AshAi.ToToolError gained an i…
-
Medium 4.3
Multiple Vulnerabilities in IBM API Connect
IBM API Connect 10.0.8.0 through 10.0.8.12 and 12.1.0.0 through 12.1.1.2 could allow a remote authenticated attacker to obtain sensitive information due to verbose error messages. Error responses contain more information about the system than necessary, which…
-
Medium 5.3
Multiple Vulnerabilities in IBM API Connect
IBM API Connect 10.0.8.0 through 10.0.8.12 and 12.1.0.0 through 12.1.1.2 could allow a remote attacker to obtain sensitive information due to verbose error messages.
-
Critical 10.0
Apache Juneau: Internal exception class and message disclosed via error response header and body regardless of secure defaults
Generation of Error Message Containing Sensitive Information vulnerability in Apache Juneau. The REST server sends the internal exception class and message to clients in a "Thrown" response header on every error response, and can include internal exception me…
-
Medium 5.5
A flaw was found in ansible-core. When a task marked `no_log: true` fails, the task result is censored before being emi…
-
Medium 4.3
Multiple vulnerabilities that affects IBM Db2 Genius Hub
IBM Db2 Genius Hub 1.1.2, 1.1.3, 1.1.4, 1.1.5 could allow a remote authenticated attacker to obtain sensitive information due to exposure of error messages containing internal implementation details.
-
Low 3.7
Warpgate: Kubernetes listener discloses internal error text to an unauthenticated caller
Warpgate is an open source SSH, HTTPS, and MySQL bastion host for Linux. Prior to 0.29.0, the Kubernetes protocol listener uses AcceptAnyClientCert in warpgate-protocol-kubernetes/src/server/client_certs.rs to accept certificates at the TLS layer and defer va…
-
Medium 5.3
Duplicator 5.0.0 - 5.0.6 - Unauthenticated Full Path Disclosure via Installer Entry Points
The Duplicator WordPress plugin before 5.1.0, duplicator-pro WordPress plugin before 5.1.0 does not prevent direct access to some of its bundled PHP files, which initialise without their expected context, trigger a fatal error, and return a stack trace that d…
-
Medium 5.3
Org.jboss.resteasy/resteasy-core: resteasy: information disclosure through default exception mapper responses
A flaw was found in RESTEasy's default exception mapper. When an unhandled exception other than a WebApplicationException is not handled by an application exception mapper, RESTEasy returns the exception's localized message in the HTTP 500 response body. A re…
-
Medium 5.3
Octo STS discloses trust policy contents to unauthorized callers via Exchange error messages
Octo STS (github.com/octo-sts/app) before 0.11.2 returns trust policy configuration to callers whose OIDC token does not satisfy that policy. TrustPolicy.CheckToken included the policy's issuer, subject and audience values or patterns and claim_pattern names …
-
High 8.4
jack: upstream error responses expose backend and peer credentials
jack lets users share media libraries through their Radarr/Sonarr stack, peer-to-peer. Prior to 0.1.0, `middleware/handle-error.ts` serializes raw `FetchError` objects into HTTP responses. `lib/servers/base.ts` attaches outbound request headers on upstream no…
-
High 8.2
n8n before 1.123.85, 2.43.5, and 2.44.1 Credential Exposure via Node Execution Error Data
n8n before 1.123.85, 2.x before 2.43.5, and 2.44.x before 2.44.1 stores credential secrets in execution error data when operations fail in the Git, MongoDB Atlas Vector Store, and Google Cloud Storage nodes. Users who can view a workflow's executions but cann…
-
Medium 6.5
HCL BigFix AEX is affected by multiple security vulnerabilities.
HCL BigFix AEX is affected by an Information Disclosure vulnerability due to improper handling of errors or exceptional conditions. This could allow an attacker to obtain sensitive technical information, including stack traces, system details, or internal pat…
-
Medium 4.3
a2ui-project a2ui Error data-context.ts DataContext.dispatchExpressionError information exposure
A vulnerability was detected in a2ui-project a2ui up to 0.10.6. Affected is the function DataContext.dispatchExpressionError of the file renderers/web_core/src/v0_9/rendering/data-context.ts of the component Error Handler. Performing a manipulation results in…
-
Medium 4.3
Tanium addressed an information disclosure vulnerability in Tanium Server.
Tanium addressed an information disclosure vulnerability in Tanium Server.
-
Medium 4.3
a2aproject a2a-java JSON-RPC Error getMessage information exposure
A flaw has been found in a2aproject a2a-java up to 1.2.0.Final. This impacts the function getMessage of the component JSON-RPC Error Handler. This manipulation causes information exposure through error message. The attack can be initiated remotely. Upgrading …
-
Medium 5.3
a2aproject a2a-go Push Notification agentexec.go CreateExecutor information exposure
A vulnerability was detected in a2aproject a2a-go up to 2.4.0. This affects the function CreateExecutor of the file a2asrv/agentexec.go of the component Push Notification Handler. The manipulation results in information exposure through error message. It is p…
-
Medium 4.3
a2aproject a2a-dotnet Parser A2AJsonRpcProcessor.cs A2AJsonRpcProcessor.ProcessRequestAsync information exposure
A security vulnerability has been detected in a2aproject a2a-dotnet up to 1.0.0-preview2. The impacted element is the function A2AJsonRpcProcessor.ProcessRequestAsync of the file src/A2A.AspNetCore/A2AJsonRpcProcessor.cs of the component Parser. The manipulat…
-
Medium 5.3CVE-2026-101259 Public exploit
Apache Camel: Camel-CoAP Information Disclosure via Unmuted Consumer Exceptions
Generation of Error Message Containing Sensitive Information vulnerability in Apache Camel CoAP component. This issue affects Apache Camel: from 4.0.0 before 4.18.5, from 4.19.0 before 4.22.2. When the CoAP consumer could not build its response once the route…
-
Medium 6.9
Workflow names may be leaked to unauthenticated users in KNIME Business Hub
Overly informative error messages in the catalog functionality of KNIME Business Hub prior to version 1.18.5 may allow an authenticated remote attacker to see workflow names if their ID is known. A workaround is not possible.
-
Medium 5.3
webpack-dev-server vulnerable to information disclosure via Host validation bypass in the open-editor endpoint
webpack-dev-server is a development server that provides live reloading for webpack projects. In versions from 5.1.0 before 5.2.7 and in version 6.0.0, the unauthenticated open-editor endpoint validates the Host header with a regular expression meant for brow…
-
Medium 5.3
a2aproject a2a-rs error.rs information exposure
A vulnerability was determined in a2aproject a2a-rs up to 0.4.3. This issue affects some unknown processing of the file a2a-server/src/error.rs. Executing a manipulation can lead to information exposure through error message. The attack can be executed remote…
-
Medium 6.3
Vite: First 4 bytes of files outside of `server.fs` setting is exposed by `?vite-wasm-instance`
Vite is a frontend tooling framework for JavaScript. From 8.2.0 until 8.2.4 and 8.3.3, the first 4 bytes of files outside of server.fs setting can be returned to the browser by a request containing ?vite-wasm-instance. Requests containing the ?vite-wasm-insta…
-
Medium 5.3
IBM Concert Software Information Disclosure
IBM Concert 1.0 through 3.0.0 allows information disclosure through exposure of schema suggestions.
-
Medium 5.3CVE-2026-85315 Public exploit
Apache Camel: Camel-gRPC Information Disclosure via Unmuted Consumer Exceptions
Generation of Error Message Containing Sensitive Information vulnerability in Apache Camel gRPC component. This issue affects Apache Camel: from 4.0.0 before 4.18.5, from 4.19.0 before 4.22.1. When a route behind a gRPC consumer failed, the exception's messag…
-
Medium 5.3CVE-2026-85257 Public exploit
Apache Camel: Camel-CXF Information Disclosure via Unmuted Consumer Exceptions
Generation of Error Message Containing Sensitive Information vulnerability in Apache Camel CXF component. This issue affects Apache Camel: from 4.0.0 before 4.18.5, from 4.19.0 before 4.22.1. When a route behind a CXF SOAP consumer failed with an exception th…
-
Medium 5.3CVE-2026-85246 Public exploit
Apache Camel: Camel-Mina Information Disclosure via Unmuted Consumer Exceptions
Generation of Error Message Containing Sensitive Information vulnerability in Apache Camel Mina component. This issue affects Apache Camel: from 4.0.0 before 4.18.5, from 4.19.0 before 4.22.1. When processing of an exchange failed, the Mina consumer wrote exc…
-
Medium 5.3CVE-2026-84180 Public exploit
Apache Camel: Camel-Knative Information Disclosure via Unmuted Consumer Exceptions
Generation of Error Message Containing Sensitive Information vulnerability in Apache Camel Knative component. This issue affects Apache Camel: from 4.0.0 before 4.18.5, from 4.19.0 before 4.22.1. When processing of an exchange failed on the consumer side, the…
-
High 7.5
WordPress Gantry 5 Framework plugin <= 5.6.4 - Sensitive Data Exposure vulnerability
Generation of Error Message Containing Sensitive Information vulnerability in Gantry Gantry 5 Framework gantry5 allows Retrieve Embedded Sensitive Data.This issue affects Gantry 5 Framework: from n/a through 5.6.4.
-
High 8.6
Dell Terraform Provider for OME, versions 1.0.0 through 1.2.3, contains an Insertion of Sensitive Information into Exte…
-
Medium 4.3
Internal Application Information Exposure Vulnerability in Hitachi Ops Center Administrator
Internal Application Information Exposure Vulnerability in Hitachi Ops Center Administrator. This issue affects Hitachi Ops Center Administrator: before 11.0.9-01.
-
Medium 6.5
IBM WebSphere Application Server Liberty Information Disclosure
IBM WebSphere Application Server - Liberty 17.0.0.3 through 26.0.0.9 is affected by an information disclosure vulnerability that allows an authenticated attacker to obtain sensitive information when restConnector-2.0 is enbabled.
-
Medium 4.7
Windows NTFS Information Disclosure Vulnerability
Generation of error message containing sensitive information in Windows NTFS allows an authorized attacker to disclose information locally.
-
Medium 5.5
A vulnerability has been identified in .NET Client Library for SIMATIC S7 Webserver API (All versions < V3.3.62). Affec…
-
Critical 9.1
DeepSeek V4 is vulnerable to Incorrect Access Control via a crafted input.
-
Medium 6.3
Internal error terms inspected into AshTypescript RPC error responses
Generation of Error Message Containing Sensitive Information vulnerability in ash-project ash_typescript allows an unauthenticated attacker to read internal Elixir terms from an RPC error response by provoking an error the error builder has no dedicated claus…
-
Medium 5.3
pyLoad: Unauthenticated access to /web/<path:filename> bypasses authentication on sensitive templates and leaks internal error details via exception attribute typo
pyLoad is a free and open-source download manager written in Python. Prior to 0.5.0b3.dev101, the `/web/<path:filename>` route in `src/pyload/webui/app/blueprints/app_blueprint.py` renders Jinja2 templates without any authentication requirement. Every equival…
-
Low 3.7
Dell Secure Connect Gateway (SCG) Policy Manager, versions prior to 5.34.00.16, contains a Generation of Error Message …
-
Medium 6.3
Parse Server 9.0.0 before 9.10.1-alpha.12 Class Name Disclosure via GraphQL Errors
Parse Server 8.2.2 before 8.6.92 and 9.0.0 before 9.10.1-alpha.12 contains an information disclosure vulnerability in which GraphQL validation error messages reveal hidden class names when public introspection is disabled. Unauthenticated attackers holding on…
-
Medium 4.3
Gitea migration and pull mirror SSRF through multi-answer DNS
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…