Weakness (CWE)
CWE-184: Incomplete List of Disallowed Inputs
The product implements a protection mechanism that relies on a list of inputs (or properties of inputs) that are not allowed by policy or otherwise require other action to neutralize before additional processing takes place, but the list is incomplete.
How to prevent it (1 mitigation)
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Implementation
Do not rely exclusively on detecting disallowed inputs. There are too many variants to encode a character, especially when different environments are used, so there is a high likelihood of missing some variants. Only use detection of disallowed inputs as a mechanism for detecting suspicious activity. Ensure that you are using other protection mechanisms that only identify "good" input - such as lists of allowed inputs - and ensure that you are properly encoding your outputs.
Source: MITRE CWE-184
281 results · Feed
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Medium 6.1
Mistune renderers/html.safe_url: HARMFUL_PROTOCOLS list misses legacy and chained schemes that historically chain to `javascript:` execution
Mistune is a Python Markdown parser with renderers and plugins. Prior to 3.3.0, the safe_url filter in src/mistune/renderers/html.py blocks only javascript:, vbscript:, file:, and data: schemes, allowing legacy or chained schemes such as feed:, view-source:, …
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High 7.1
OpenClaw < 2026.5.28 - Credential Override via Workspace Dotenv Files
OpenClaw before 2026.5.28 contains a credential exposure vulnerability where workspace dotenv files can override provider credentials. Attackers with lower-trust access to configured input paths can expose sensitive data and credentials that should remain wit…
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High 8.8
Fickling check_safety() bypass via unlisted standard library modules (_posixsubprocess, site, atexit)
Trail of Bits fickling versions up to and including 0.1.10 do not include the Python standard library modules _posixsubprocess, site, and atexit in the UNSAFE_IMPORTS denylist (fickle.py). Because these modules are absent from the denylist, fickling's check_s…
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Medium 5.0
n8n - AST Validator Bypass in Python Code Node
n8n before 2.25.7 and 2.26.x before 2.26.2 contains an abstract syntax tree (AST) security validator bypass in the Python Code node. An authenticated user with permission to create or modify workflows containing a Python Code node can bypass the validator and…
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High 7.6
Picklescan - Arbitrary Code Execution via Unsafe Numpy Function Detection Bypass
Picklescan before 0.0.25 fails to detect unsafe global functions in the Numpy library, allowing attackers to bypass static analysis and execute arbitrary code during deserialization. Attackers can craft malicious pickle files using numpy.testing._private.util…
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Critical 10.0
Kestra: Unauthenticated Remote Code Execution via Authentication Bypass in `AuthenticationFilter`
Kestra is an open-source, event-driven orchestration platform. Prior to 1.0.45 and 1.3.21, AuthenticationFilter in Kestra OSS uses request.getPath().endsWith("/configs") to whitelist the public configuration endpoint from Basic Auth. Because the check is a su…
KEV Sep 2, 2026 -
High 8.7
File Browser: Command Allowlist Bypass via Shell Metacharacter Injection
File Browser is a file managing interface for uploading, deleting, previewing, renaming, and editing files within a specified directory. Prior to 2.33.8, when a shell interpreter is configured (e.g. /bin/sh -c), the command allowlist can be bypassed through s…
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Low 2.6
Nokogiri: XML::Schema on JRuby allows network requests when NONET is set, bypassing CVE-2020-26247
Nokogiri is an open source XML and HTML library for the Ruby programming language. Prior to 1.19.4, the NONET parse option, which Nokogiri turns on by default for Nokogiri::XML::Schema (see CVE-2020-26247), was not correctly enforced on the JRuby implementati…
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High 7.1
SiYuan: Stored XSS in Bazaar marketplace via package README event handlers
SiYuan is an open-source personal knowledge management system. Prior to 3.7.0, renderPackageREADME in kernel/bazaar/readme.go renders a Bazaar package README from Markdown to HTML with the lute engine and SetSanitize(true). The lute sanitizer is an event-hand…
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High 8.6
Mastodon: SSRF protection bypass on older Ruby versions
Mastodon is a free, open-source social network server based on ActivityPub. Prior to 4.5.10, 4.4.17, and 4.3.23, when using Ruby versions older than 3.4, PrivateAddressCheck.private_address? returns false for IPv4-mapped IPv6 addresses (::ffff:a.b.c.d) corres…
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Medium 5.8
Ghost: Private IP filtering bypass to make server-side requests to internal services
Ghost is a Node.js content management system. From 6.0.9 until 6.21.1, when making an external request, it is possible to bypass the IP filter that ensures the request isn't going to an internal service using an IPv6 literal which maps to a private IPv4 addre…
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High 8.1CVE-2026-54512 Public exploit
jackson-databind: PolymorphicTypeValidator bypass via generic type parameters allows arbitrary class instantiation
jackson-databind contains the general-purpose data-binding functionality and tree-model for Jackson Data Processor. From 2.10.0 until 2.18.8, 2.21.4, and 3.1.4, jackson-databind's PolymorphicTypeValidator (PTV) is the primary safety mechanism guarding polymor…
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High 8.1
jackson-databind: Array subtype allowlist bypass in BasicPolymorphicTypeValidator (allowIfSubTypeIsArray)
jackson-databind contains the general-purpose data-binding functionality and tree-model for Jackson Data Processor. From 2.10.0 until 2.18.8, 2.21.4, and 3.1.4, BasicPolymorphicTypeValidator.Builder.allowIfSubTypeIsArray() allowlists any array type based only…
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Critical 9.8
picklescan - Remote Code Execution via Unblocked Standard Library Modules
picklescan before 1.0.4 fails to block at least seven Python standard library modules (including uuid, _osx_support, _aix_support, _pyrepl.pager, and imaplib) exposing eight functions that provide direct arbitrary command execution. Attackers can craft malici…
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Critical 9.9CVE-2026-56274 Public exploit
Flowise - Remote Code Execution via MCP Security Bypass in validateCommandFlags and validateArgsForLocalFileAccess
Flowise before 3.1.2 contains multiple OS command injection vulnerabilities in the Custom MCP Server feature due to incomplete command-flag validation and a regex bypass in local file access restrictions. An attacker with a Flowise account of any role, or API…
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High 7.6
picklescan - Remote Code Execution via timeit.timeit() Detection Bypass
picklescan before 0.0.25 fails to detect malicious pickle files that use timeit.timeit() in the __reduce__ method, allowing remote code execution. Attackers can craft pickle files that import dangerous libraries like os and execute arbitrary system commands, …
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Critical 9.8
picklescan - Arbitrary Code Execution via profile.run() Blocklist Bypass
picklescan before 1.0.4 contains an incomplete blocklist for the profile module that fails to block the module-level profile.run() function, allowing attackers to achieve arbitrary code execution via exec(). Attackers can craft malicious pickle files calling …
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Critical 9.8
picklescan - Remote Code Execution via Unblocked ctypes Module
picklescan before 0.0.33 fails to block the ctypes module, allowing attackers to achieve remote code execution by invoking direct syscalls and accessing raw memory. Attackers can craft malicious pickle files using ctypes.WinDLL to load kernel32.dll and execut…
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Critical 9.8
picklescan - Remote Code Execution via Incomplete Disallowed Inputs
picklescan before 0.0.33 contains an incomplete deny-list that fails to block pydoc.locate and operator.methodcaller functions, allowing attackers to bypass security checks. Remote attackers can craft malicious pickle files using these unblocked functions to …
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Critical 9.6
OpenHuman desktop agent shell tool sandbox bypass leads to arbitrary command execution
The shell tool command allowlist in the SecurityPolicy of OpenHuman desktop agent through 0.54.0 (default Supervised security policy) can be bypassed to execute arbitrary OS commands with the privileges of the desktop user.
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Medium 4.7
CarrierWave has a denylisted_content_type bypass via Unescaped Regex Metacharacters
CarrierWave is a framework to upload files from Ruby applications. In versions prior to 2.2.7 and 3.1.3, the content_type_denylist check fails to escape regex metacharacters in string entries, causing the denylist to silently not match the content types it is…
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High 8.1
OpenClaw < 2026.5.12 - Allowlist Bypass in Shell Inline-Command Parsing
OpenClaw before 2026.5.12 contains an allowlist bypass vulnerability in shell inline-command parsing that allows authenticated operators to execute unapproved commands. A command request using shell inline-command forms could route through a parser case missi…
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High 8.1
OpenClaw < 2026.5.26 - Insufficient Environment Variable Sanitization in Node.js Control Variables
OpenClaw before 2026.5.26 contains an insufficient sanitization vulnerability in the host environment sanitizer that allows Node.js control variables to bypass validation. Attackers with access to workspace .env files, tool environment overrides, or skill env…
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Medium 6.6
OpenClaw < 2026.5.6 - Allowlist Bypass via Combined POSIX Inline Flags on macOS
OpenClaw before 2026.5.6 contains an allowlist bypass vulnerability in the macOS Swift exec feature that misses combined POSIX inline-command flags. Attackers can execute shell content outside the intended allowlist check by using combined flag forms, potenti…
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High 8.1
OpenClaw < 2026.4.2 - Shell Positional Parameters Bypass in Inline-Eval Checks
OpenClaw before 2026.4.2 contains an inline-eval bypass vulnerability allowing authenticated operators to weaken strict allowlist checks via shell positional parameters. Attackers can combine allowlisted tools with shell positional arguments to place inline-e…
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Medium 4.3
OpenClaw < 2026.5.26 - Exec Allowlist Bypass via Transparent Command Wrappers
OpenClaw before 2026.5.26 contains an exec allowlist bypass vulnerability allowing authenticated operators to execute wrapper-level side effects outside allowlisted command intent. Attackers can craft command requests that bypass allowlist validation by lever…
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None 0.0
Bleach: URI sanitization allows disallowed URI schemes with Unicode > U+00A0 in output
### Impact A possible XSS bypass affects users calling `bleach.clean` with all of: * `a` in the allowed tags * `href` in allowed attributes The `bleach.clean` sanitizer outputs URIs containing disallowed scheme patterns that it should be stripping. However, b…
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High 8.8
OpenClaw < 2026.5.12 - Allowlist Bypass via PowerShell Encoded-Command Aliases
OpenClaw before 2026.5.12 contains an allowlist bypass vulnerability in PowerShell encoded-command handling that allows attackers to execute encoded commands using abbreviated flag aliases not recognized by the allowlist parser. Remote authenticated operators…
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High 8.8
Spatie Laravel Media Library < 11.23.0 File Upload Restriction Bypass via FileAdder.php
Spatie Laravel Media Library before version 11.23.0 contains a file upload restriction bypass in FileAdder::defaultSanitizer(). The sanitizer checks only the final filename suffix, allowing double-extension filenames such as shell.php.jpg to bypass the blockl…
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Medium 6.3
FastGPT: sandbox escape to RCE - code-sandbox regex /\bimport\s*\(/ is bypassable
FastGPT is an AI Agent building platform. Prior to 4.15.0-beta1, the JavaScript sandbox worker at projects/code-sandbox/src/pool/worker.ts:356 blocks dynamic import() with the regex /\bimport\s*\(/.test(code). JavaScript syntax accepts a block comment between…
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High 8.6
Zed: Allowlist Bypass via Environment Variable Injection in Terminal Tool Permissions
Zed is a code editor. Prior to 0.229.0, Zed's terminal tool permission system can be bypassed by prepending environment variable assignments to allowlisted commands, hijacking program behavior (e.g., PAGER) to execute arbitrary code. This vulnerability is fix…
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Medium 6.4
Zed: Allowlist Bypass via Bash Variable Expansion Chain in Terminal Tool Permissions
Zed is a code editor. Prior to 0.229.0, Zed's terminal tool permission system can be bypassed via bash variable expansion chaining (${var@P}), allowing arbitrary command execution under an allowlisted command prefix. This vulnerability is fixed in 0.229.0.
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High 7.1
Tabby: Unsafe protocol handler execution via terminal linkifier allows arbitrary OS protocol invocation
Tabby (formerly Terminus) is a highly configurable terminal emulator. Prior to 1.0.232, Tabby's terminal linkifier passes any detected URI directly to the operating system's protocol handler without validating the protocol scheme. This allows a malicious SSH …
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High 8.2
Gotenberg: ExifTool group-prefix syntax bypasses dangerous-tag blocklist
Gotenberg is a Docker-powered stateless API for PDF files. Prior to 8.30.0, The ExifTool metadata write blocklist in Gotenberg can be bypassed using ExifTool's group-prefix syntax, enabling arbitrary file rename, move, hardlink, and symlink creation on the se…
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High 8.2
Gotenberg: ExifTool Dangerous Tag Blocklist Bypass via Group-Prefixed Tag Names Allows Arbitrary File Rename and Move
Gotenberg is a Docker-powered stateless API for PDF files. Prior to 8.31.0, Gotenberg only checks if the tag is exactly FileName, so System:FileName slips right through and ExifTool happily renames the file. This allows remote attackers to move, rename, and c…
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High 8.2
ssrfcheck: Server-Side Request Forgery (SSRF) and Incomplete List of Disallowed Inputs
ssrfcheck is a library that checks if a string contains a potential SSRF attack. In 1.3.0 and earlier, ssrfcheck fails to block Server-Side Request Forgery attacks when the target private IP address is encoded as an IPv4-mapped IPv6 address (e.g. http://[::ff…
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High 8.4
JunoClaw: plugin-shell shell-injection bypass via substring blocklist
JunoClaw is an agentic AI platform built on Juno Network. Prior to 0.x.y-security-1, substring-based blocklist in plugin-shell's command-safety check could be bypassed by adversarial argument constructions, allowing unauthorized command execution on the host …
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High 8.8
OpenClaw < 2026.4.23 - Unsafe Config Mutation via Gateway Tool Denylist Bypass
OpenClaw before 2026.4.23 contains an improper access control vulnerability in the gateway tool's config.apply and config.patch operations that allows compromised models to write unsafe configuration changes by bypassing an incomplete denylist protection. Att…
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Medium 5.4
OpenClaw < 2026.4.20 - Direct Message Misclassification in Feishu Card Actions
OpenClaw before 2026.4.20 contains a message classification vulnerability in Feishu card-action callbacks that misclassifies direct messages as group conversations. Attackers can bypass dmPolicy enforcement by triggering card-action flows in direct message co…
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High 8.8
OpenClaw < 2026.4.22 - Shell Expansion Bypass in Unquoted Heredocs via Exec Allowlist
OpenClaw before 2026.4.22 contains an exec allowlist analysis vulnerability allowing shell expansion hiding in unquoted heredoc bodies. Attackers can bypass allowlist validation by embedding shell expansion tokens in heredoc bodies to execute unapproved comma…