Weakness (CWE)
CWE-494: Download of Code Without Integrity Check
The product downloads source code or an executable from a remote location and executes the code without sufficiently verifying the origin and integrity of the code.
How to prevent it (5 mitigations)
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Implementation
Perform proper forward and reverse DNS lookups to detect DNS spoofing.
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Architecture and Design, Operation
Encrypt the code with a reliable encryption scheme before transmitting.
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Architecture and Design
Use a vetted library or framework that does not allow this weakness to occur or provides constructs that make this weakness easier to avoid [REF-1482].
Speficially, it may be helpful to use tools or frameworks to perform integrity checking on the transmitted code.
- When providing the code that is to be downloaded, such as for automatic updates of the software, then use cryptographic signatures for the code and modify the download clients to verify the signatures. Ensure that the implementation does not contain CWE-295, CWE-320, CWE-347, and related weaknesses.
- Use code signing technologies such as Authenticode. See references [REF-454] [REF-455] [REF-456].
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Architecture and Design, Operation
Run your code using the lowest privileges that are required to accomplish the necessary tasks [REF-76]. If possible, create isolated accounts with limited privileges that are only used for a single task. That way, a successful attack will not immediately give the attacker access to the rest of the software or its environment. For example, database applications rarely need to run as the database administrator, especially in day-to-day operations.
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Architecture and Design, Operation
Run the code in a "jail" or similar sandbox environment that enforces strict boundaries between the process and the operating system. This may effectively restrict which files can be accessed in a particular directory or which commands can be executed by the software.
OS-level examples include the Unix chroot jail, AppArmor, and SELinux. In general, managed code may provide some protection. For example, java.io.FilePermission in the Java SecurityManager allows the software to specify restrictions on file operations.
This may not be a feasible solution, and it only limits the impact to the operating system; the rest of the application may still be subject to compromise.
Be careful to avoid CWE-243 and other weaknesses related to jails.
Source: MITRE CWE-494
223 results · Feed
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High 8.3
Hermes Agent 0.18.2 < 0.19.0 MCP Catalog Supply Chain RCE via Mutable Branch Reference
Hermes Agent 0.18.2 prior to 0.19.0 contains a supply chain vulnerability in its bundled MCP catalog that allows a remote attacker to execute arbitrary code by compromising a third-party upstream repository referenced via a mutable branch rather than a pinned…
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High 8.1
Spring for GraphQL loads Untrusted Resources in GraphiQL support
The GraphiQL page bundled with Spring for GraphQL loads JavaScript libraries from a public CDN, without Subresource Integrity checks. An attacker can inject malicious code in those scripts and execute arbitrary code on the browser loading the GraphiQL page. S…
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Critical 9.8
An issue in Time4 Popcorn for Windows <= 6.2.1.18 and Time4Popcorn for MacOS <= 6.2.1.17 and Time4Popcorn for Android <…
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Medium 4.4
HCL BigFix Quantum Risk Analyzer is affected by a hardcoded external resource reference and downloading code without integrity checking
HCL BigFix Quantum Risk Analyzer is affected by a hardcoded external resource reference and a lack of binary integrity which could allow an attacker to obtain sensitive information or modify the binary.
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High 8.1
NVIDIA NemoClaw for Linux contains a vulnerability in its installation process, where an attacker could cause execution…
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High 7.5
NVIDIA NemoClaw for Linux contains a vulnerability in its installation scripts, where an attacker could cause a downloa…
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Critical 9.3
WatchGuard Agent improper authentication allows unauthenticated remote code execution
Improper authentication in the WatchGuard Agent allows an unauthenticated attacker with network access to cause the agent to execute arbitrary code with elevated privileges.
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Critical 10.0
Critical flaw impacting OZOLS ERP's automatic update channel
Download of code without integrity check, inclusion of functionality from untrusted control sphere, and cleartext transmission of sensitive information vulnerability in Ozols Grupa OZOLS on Windows caused by an abandoned auto-update domain. Affected component…
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High 7.3
stigmem Plugin Signature Enforcement Bypass via Configuration
stigmem-node 0.9.0a1 allows plugin signature enforcement to be disabled via a single configuration flag without a second explicit acknowledgment. If that setting is carried into an environment where plugin directories are writable by less-trusted users, unsig…
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High 7.5
ZeroBrew version 0.3.1 and prior Missing Checksum Verification RCE via shim.rb
ZeroBrew version 0.3.1 and prior contains a missing integrity verification vulnerability in the Ruby compatibility shim that allows network attackers to execute arbitrary code by substituting malicious content at formula resource or URL-based patch URLs witho…
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High 8.3
IBM i Access Client Solutions (ACS) is Affected By Multiple Vulnerabilities
IBM i Access Client Solutions 1.1.2.0 through 1.1.9.13 (ACS) is vulnerable to downloading unverified product code when configured to update from an IBM i. A bad actor could use this vulnerablity to run compromised code on the ACS user's workstation.
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Critical 9.3
Streambert Vulnerable to Remote Code Execution (RCE) via Unvalidated Auto-Updater IPC Handler
Streambert is a cross-platform Electron Desktop App to stream and download video content. Versions prior to 2.5.0 contain an unvalidated auto-updater URL vulnerability that allows a compromised renderer process to make the main process download and execute an…
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High 7.3
eParakstītājs 3.0 for Windows – remote code execution via unauthenticated auto-update
eParakstītājs 3.0 for Windows before version 1.10.0 retrieves and executes its automatic updates over a channel that is not authenticated or integrity-protected. On each launch the application fetches an update descriptor (XML) over TLS but accepts any TLS ce…
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Medium 5.3
Improper Input Validation in nltk/nltk
In nltk version 3.9.4, the `nltk.downloader.Downloader._download_package()` function writes downloaded package bytes to disk and may extract them before enforcing SHA-256 or MD5 checksum validation. This allows an attacker to tamper with the package response …
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Critical 9.4
phpMyFAQ before 4.1.6 Remote Code Execution via Configuration API
phpMyFAQ before v4.1.6 contains a remote code execution vulnerability in the configuration API that allows authenticated administrators with CONFIGURATION_EDIT and ATTACHMENT_ADD privileges to write arbitrary PHP files by manipulating the upgrade.lastDownload…
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Critical 9.3
FastGPT: Untrusted PR artifacts are pushed and deployed by privileged preview workflows
FastGPT is a knowledge-based AI application platform. At commit 22ebfacbb43311e9b73294040ae0eb87390c6bba and earlier, artifacts built from untrusted pull request code in .github/workflows/preview-docs-build.yml and .github/workflows/preview-fastgpt-build.yml …
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High 7.5
Parse Server - Arbitrary Code Execution via Malicious Version Tags
Parse Server before 4.10.0 was affected by a supply chain incident in which incorrect version tags were pushed to the official repository pointing to an unreviewed personal fork of a contributor with write access. No releases were published with these tags; a…
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High 7.5
Parse Server - Unreviewed Code Execution via Malicious Version Tags
Parse Server before 4.10.0 contains a supply chain vulnerability where incorrect version tags were pushed to the repository linking to unreviewed code in a personal fork. Attackers could exploit this by specifying affected version tags in dependency declarati…
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High 8.8
pnpm: Project env lockfile can short-circuit package-manager resolution and execute lockfile-selected pnpm bytes
pnpm is a package manager. Prior to 10.34.2 and 11.5.3, pnpm can persist package-manager bootstrap metadata in the first YAML document of pnpm-lock.yaml. Before the patch, direct pnpm execution trusted an already resolved packageManagerDependencies entry when…
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High 7.5
pnpm: Repository-controlled configDependencies can select a pacquet native install engine
pnpm is a package manager. Prior to 10.34.2 and 11.5.3, pnpm can install configDependencies declared in pnpm-workspace.yaml before command dispatch. Before the patch, a repository could declare pacquet or @pnpm/pacquet as a config dependency and pnpm treated …
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High 8.7
Angular: Multiple Remote Code Execution Vulnerabilities in Angular Language Service VS Code Extension
The Angular Language Service VS Code Extension provides a rich editing experience for Angular templates. Prior to 21.2.4, the client-side Angular Language Service VS Code extension reads the custom TypeScript SDK paths typescript.tsdk and js/ts.tsdk.path dire…
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Critical 9.3
Download of code without integrity check in XCharge C6
A firmware update mechanism in the affected charging controller fails to validate the authenticity of firmware packages delivered through the device's management interface. Because cryptographic signatures are not verified, an attacker with the ability to int…
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Critical 9.4
electerm: Import unsafe bookmark data could lead to unsafe operation when click local type bookmark
electerm is an open-sourced terminal/ssh/sftp/telnet/serialport/RDP/VNC/Spice/ftp client. In 3.8.8 and earlier, there is persistent local-pty code execution via imported bookmarks or compromised sync targets. Affects users who import bookmark JSON files or wh…
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High 8.8
The ConnectWise Automate™ Agent does not fully verify the authenticity of components obtained during plugin loading and…
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High 7.5
apko doesn't verify downloaded apk packages against APKINDEX checksum (package substitution possible)
apko allows users to build and publish OCI container images built from apk packages. Prior to version 1.2.7, apko verifies the signature on APKINDEX.tar.gz but never compares individually downloaded .apk packages against the checksum recorded in the signed in…
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High 8.9
Lockfile checksums not verified in Hex allows dependency integrity bypass
Insufficient Verification of Data Authenticity vulnerability in hexpm hex (Hex.RemoteConverger module) allows dependency integrity bypass via unverified lockfile checksums. Hex stores checksums for dependencies in the mix.lock file to ensure reproducible and …
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High 7.7CVE-2026-42249 Public exploit
Remote Code Execution in Ollama via Update Mechanism
Ollama for Windows contains a Remote Code Execution vulnerability in its update mechanism due to improper handling of attacker‑controlled HTTP response headers. When downloading updates, the application constructs local file paths using values derived from HT…
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High 7.7CVE-2026-42248 Public exploit
Missing Signature Verification for Updates in Ollama
Ollama for Windows does not perform integrity or authenticity verification of downloaded update executables. Unlike other platforms, the Windows implementation of the update verification routine unconditionally returns success so no digital signature or trust…
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Medium 4.8
Improper TLS Certificate Validation RCE via Malicious Update in DeskTime Time Tracking App
Due to improper TLS certificate validation in the DeskTime Time Tracking App before version 1.3.674, attackers who can position themselves in the network path between the client and the DeskTime update servers can return a malicious executable in response to …
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High 8.8
Anviz Products Download of Code Without Integrity Check
Anviz CX2 Lite and CX7 are vulnerable to unverified update packages that can be uploaded. The device unpacks and executes a script resulting in unauthenticated remote code execution.
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Medium 5.4
A Download of Code Without Integrity Check vulnerability in the update modules in ASUS Member Center(华硕大厅) allows a loc…
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Critical 9.8
Axios npm Supply Chain Incident Impacting @usebruno/cli
Bruno is an open source IDE for exploring and testing APIs. Prior to 3.2.1, Bruno was affected by a supply chain attack involving compromised versions of the axios npm package, which introduced a hidden dependency deploying a cross-platform Remote Access Troj…
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Medium 6.8
An issue in the firmware update mechanism of Qianniao QN-L23PA0904 v20250721.1640 allows attackers to gain root access,…
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High 7.8
TrueConf Client Update Integrity Verification Bypass
TrueConf Client downloads application update code and applies it without performing verification. An attacker who is able to influence the update delivery path can substitute a tampered update payload. If the payload is executed or installed by the updater, t…
KEV Apr 2, 2026 -
Critical 9.4CVE-2026-33075 Public exploit
FastGPT has Arbitrary Code Execution in GitHub Actions via pull_request_target in fastgpt-preview-image.yml
FastGPT is an AI Agent building platform. In versions 4.14.8.3 and below, the fastgpt-preview-image.yml workflow is vulnerable to arbitrary code execution and secret exfiltration by any external contributor. It uses pull_request_target (which runs with access…
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High 8.6
ONNX Untrusted Model Repository Warnings Suppressed by silent=True in onnx.hub.load() — Silent Supply-Chain Attack
Open Neural Network Exchange (ONNX) is an open standard for machine learning interoperability. In versions up to and including 1.20.1, a security control bypass exists in onnx.hub.load() due to improper logic in the repository trust verification mechanism. Wh…
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Medium 5.4
An Insufficient Integrity Verification vulnerability in the ASUS ROG peripheral driver installation process allows priv…
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Critical 9.8
Changing｜IDExpert Windows Logon Agent - Remote Code Execution
IDExpert Windows Logon Agent developed by Changing has a Remote Code Execution vulnerability, allowing unauthenticated remote attackers to force the system to download arbitrary DLL files from a remote source and execute them.
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Critical 9.8
Changing｜IDExpert Windows Logon Agent - Remote Code Execution
IDExpert Windows Logon Agent developed by Changing has a Remote Code Execution vulnerability, allowing unauthenticated remote attackers to force the system to download arbitrary executable files from a remote source and execute them.
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Medium 5.7
Unsigned upgrade package
Download of Code Without Integrity Check vulnerability in Microchip Time Provider 4100 allows Malicious Manual Software Update.This issue affects Time Provider 4100: before 2.5.