Goal Reached Thanks to every supporter — we hit 100%!

Goal: 1000 CNY · Raised: 1000 CNY

100.0%
Buy Us a Coffee

CWE-22 (对路径名的限制不恰当(路径遍历)) — Vulnerability Class 3432

3432 vulnerabilities classified as CWE-22 (对路径名的限制不恰当(路径遍历)). AI Chinese analysis included.

CWE-22 represents a critical input validation weakness where software fails to properly sanitize external input before constructing file paths. Attackers typically exploit this vulnerability by injecting directory traversal sequences, such as “../”, into user-supplied parameters. These malicious inputs allow the application to resolve file references outside the intended restricted directory, potentially granting unauthorized access to sensitive system files, configuration data, or source code. To mitigate this risk, developers must implement rigorous input validation techniques, ensuring that all path components are strictly checked against allowed characters and structures. Additionally, employing canonicalization to resolve symbolic links and relative paths before validation, combined with strict chroot jails or sandboxing, effectively confines file operations to designated directories, thereby neutralizing the potential for path traversal attacks and preserving system integrity.

MITRE CWE Description
The product uses external input to construct a pathname that is intended to identify a file or directory that is located underneath a restricted parent directory, but the product does not properly neutralize special elements within the pathname that can cause the pathname to resolve to a location that is outside of the restricted directory. Many file operations are intended to take place within a restricted directory. By using special elements such as ".." and "/" separators, attackers can escape outside of the restricted location to access files or directories that are elsewhere on the system. One of the most common special elements is the "../" sequence, which in most modern operating systems is interpreted as the parent directory of the current location. This is referred to as relative path traversal. Path traversal also covers the use of absolute pathnames such as "/usr/local/bin" to access unexpected files. This is referred to as absolute path traversal.
Common Consequences (4)
Integrity, Confidentiality, AvailabilityExecute Unauthorized Code or Commands
The attacker may be able to create or overwrite critical files that are used to execute code, such as programs or libraries.
IntegrityModify Files or Directories
The attacker may be able to overwrite or create critical files, such as programs, libraries, or important data. If the targeted file is used for a security mechanism, then the attacker may be able to bypass that mechanism. For example, appending a new account at the end of a password file may allow …
ConfidentialityRead Files or Directories
The attacker may be able read the contents of unexpected files and expose sensitive data. If the targeted file is used for a security mechanism, then the attacker may be able to bypass that mechanism. For example, by reading a password file, the attacker could conduct brute force password guessing a…
AvailabilityDoS: Crash, Exit, or Restart
The attacker may be able to overwrite, delete, or corrupt unexpected critical files such as programs, libraries, or important data. This may prevent the product from working at all and in the case of protection mechanisms such as authentication, it has the potential to lock out product users.
Mitigations (5)
ImplementationAssume all input is malicious. Use an "accept known good" input validation strategy, i.e., use a list of acceptable inputs that strictly conform to specifications. Reject any input that does not strictly conform to specifications, or transform it into something that does. When performing input validation, consider all potentially relevant properties, including length, type of input, the full range…
Architecture and DesignFor 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.
ImplementationInputs should be decoded and canonicalized to the application's current internal representation before being validated (CWE-180). Make sure that the application does not decode the same input twice (CWE-174). Such errors could be used to bypass allowlist validation schemes by introducing dangerous inputs after they have been checked. Use a built-in path canonicalization function (such as realpath(…
Architecture and DesignUse 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].
OperationUse an application firewall that can detect attacks against this weakness. It can be beneficial in cases in which the code cannot be fixed (because it is controlled by a third party), as an emergency prevention measure while more comprehensive software assurance measures are applied, or to provide defense in depth [REF-1481].
Effectiveness: Moderate
Examples (2)
The following code could be for a social networking application in which each user's profile information is stored in a separate file. All files are stored in a single directory.
my $dataPath = "/users/cwe/profiles"; my $username = param("user"); my $profilePath = $dataPath . "/" . $username; open(my $fh, "<", $profilePath) || ExitError("profile read error: $profilePath"); print "<ul>\n"; while (<$fh>) { print "<li>$_</li>\n"; } print "</ul>\n";
Bad · Perl
../../../etc/passwd
Attack
In the example below, the path to a dictionary file is read from a system property and used to initialize a File object.
String filename = System.getProperty("com.domain.application.dictionaryFile"); File dictionaryFile = new File(filename);
Bad · Java
CVE IDTitleCVSSSeverityPublished
CVE-2026-35485 text-generation-webui has a Path Traversal in load_grammar() — arbitrary file read without authentication — text-generation-webui 7.5 High2026-04-07
CVE-2026-35484 text-generation-webui has a Path Traversal in load_preset() — .yaml file read without authentication — text-generation-webui 5.3 Medium2026-04-07
CVE-2026-35483 text-generation-webui has a Path Traversal in load_template() — .jinja/.yaml/.yml file read without authentication — text-generation-webui 5.3 Medium2026-04-07
CVE-2026-33227 Apache ActiveMQ Client, Apache ActiveMQ Broker, Apache ActiveMQ All, Apache ActiveMQ Web, Apache ActiveMQ: Improper Limitation of a Pathname to a Restricted Classpath Directory — Apache ActiveMQ Client 6.5AIMediumAI2026-04-07
CVE-2026-35454 Code Extension Marketplace has a Zip Slip Path Traversal — code-marketplace 6.2AIMediumAI2026-04-06
CVE-2026-35471 Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal') in goshs — goshs 9.1AICriticalAI2026-04-06
CVE-2026-35393 Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal') in goshs POST multipart upload — goshs 9.8AICriticalAI2026-04-06
CVE-2026-35392 goshs has an Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal') in goshs PUT Upload — goshs 9.1AICriticalAI2026-04-06
CVE-2026-35177 Path traversal issue with zip.vim in Vim — vim 4.1 Medium2026-04-06
CVE-2026-35174 Chyrp Lite has a Path Traversal to Remote Code Execution — chyrp-lite 9.1 Critical2026-04-06
CVE-2026-35167 Kedro has a path traversal in versioned dataset loading via unsanitized version string — kedro 7.1 High2026-04-06
CVE-2026-35050 text-generation-webui affected by Remote Code Execution (RCE) through Path Traversal at "Session -> Save extention settings to user_data/settings.yaml". — text-generation-webui 9.1 Critical2026-04-06
CVE-2026-34783 Ferret has a Path Traversal in IO::FS::WRITE allows arbitrary file write when scraping malicious websites — ferret 8.1 High2026-04-06
CVE-2026-5638 HerikLyma CPPWebFramework path traversal — CPPWebFramework 5.3 Medium2026-04-06
CVE-2026-5597 griptape-ai griptape ComputerTool tool.py path traversal — griptape 6.3 Medium2026-04-05
CVE-2019-25687 Pegasus CMS 1.0 Remote Code Execution via extra_fields.php — Pegasus CMS 9.8 Critical2026-04-05
CVE-2019-25671 VA MAX 8.3.4 Remote Code Execution via changeip.php — VA MAX 8.8 High2026-04-05
CVE-2026-5595 griptape-ai griptape FileManagerTool save_memory_artifacts_to_disk path traversal — griptape 6.3 Medium2026-04-05
CVE-2026-5535 FedML-AI FedML MQTT Message FileUtils.java path traversal — FedML 4.3 Medium2026-04-05
CVE-2026-3666 wpForo Forum <= 2.4.16 - Authenticated (Subscriber+) Arbitrary File Deletion via Post Body — wpForo Forum 8.8 High2026-04-04
CVE-2026-34607 Emlog: Path Traversal in emUnZip() allows arbitrary file write leading to RCE — emlog 7.2 High2026-04-03
CVE-2026-34978 OpenPrinting CUPS: Path traversal in RSS notify-recipient-uri enables file write outside CacheDir/rss (and clobbering of job.cache) — cups 6.5 Medium2026-04-03
CVE-2026-26058 Zulip: Path Traversal in Import — zulip 6.1 Medium2026-04-03
CVE-2026-22661 prompts.chat Path Traversal via Skill File Handling — prompts.chat 8.1 High2026-04-03
CVE-2026-35214 Budibase: Path traversal in plugin file upload enables arbitrary directory deletion and file write — budibase 8.7 High2026-04-03
CVE-2026-4350 Perfmatters <= 2.5.9.1 - Authenticated (Subscriber+) Arbitrary File Deletion via 'delete' Parameter — Perfmatters 8.1 High2026-04-03
CVE-2026-34745 Unauthenticated Path Traversal Arbitrary File Write in /api/uploadChunked/public — fireshare 9.1 Critical2026-04-02
CVE-2026-34730 Copier `_external_data` allows path traversal and absolute-path local file read without unsafe mode — copier 5.5 Medium2026-04-02
CVE-2026-34726 Copier `_subdirectory` allows template root escape via parent-directory traversal — copier 4.4 Medium2026-04-02
CVE-2026-34591 Poetry Has Wheel Path Traversal Which Can Lead to Arbitrary File Write — poetry 7.8AIHighAI2026-04-02

Vulnerabilities classified as CWE-22 (对路径名的限制不恰当(路径遍历)) represent 3432 CVEs. The CWE taxonomy describes the weakness; review individual CVEs for product-specific impact.