Common Weakness Enumeration
CWE-73
AllowedExternal Control of File Name or Path
Abstraction: Base · Status: Draft
The product allows user input to control or influence paths or file names that are used in filesystem operations.
1081 vulnerabilities reference this CWE, most recent first.
CVE-2026-82659 (GCVE-0-2026-82659)
Vulnerability from cvelistv5 – Published: 2026-08-31 08:46 – Updated: 2026-08-31 18:52
VLAI
EPSS
VEX
Title
nodemailer before 9.0.1 File Read and SSRF via raw option
Summary
nodemailer before 9.0.1 fails to apply disableFileAccess and disableUrlAccess flags to message-level raw option, allowing authenticated attackers to read arbitrary files or perform server-side request forgery by supplying path or href properties. Attackers can exploit this by crafting raw messages with file paths or URLs that bypass the intended sandbox, with fetched content delivered in the outgoing message to attacker-controlled recipients.
Severity
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-08-31 16:23 UTC
CWE
- CWE-73 - External Control of File Name or Path
Assigner
References
2 references
| URL | Tags |
|---|---|
| https://github.com/nodemailer/nodemailer/security… | vendor-advisory |
| https://www.vulncheck.com/advisories/nodemailer-b… | third-party-advisory |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| nodemailer | nodemailer |
Affected:
0 , < 9.0.1
(semver)
Unaffected: 9.0.1 (semver) cpe:2.3:a:nodemailer:nodemailer:*:*:*:*:*:*:*:* |
Date Public
2026-06-17 00:00
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CVE-2026-82637 (GCVE-0-2026-82637)
Vulnerability from cvelistv5 – Published: 2026-08-30 13:23 – Updated: 2026-08-30 13:23
VLAI
EPSS
VEX
Title
browser-use web-ui 2.0.0 through 3.0.0 Arbitrary Directory Creation
Summary
browser-use web-ui versions 2.0.0 through 3.0.0 fail to validate browser settings paths in run_agent_task, allowing attackers to create directories at arbitrary locations by supplying absolute paths to save_recording_path, save_trace_path, save_agent_history_path, or save_download_path parameters. Attackers can exploit this via the unauthenticated Gradio interface to create directories anywhere the root-running container has write access.
Severity
5.3 (Medium)
CWE
- CWE-73 - External Control of File Name or Path
Assigner
References
4 references
| URL | Tags |
|---|---|
| https://github.com/browser-use/web-ui/issues/737 | issue-tracking |
| https://github.com/browser-use/web-ui | product |
| https://github.com/browser-use/web-ui/blob/v3.0.0… | technical-description |
| https://www.vulncheck.com/advisories/browser-use-… | third-party-advisory |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| browser-use | web-ui |
Affected:
2.0.0 , ≤ 3.0.0
(semver)
cpe:2.3:a:browser-use:browser_use:*:*:*:*:*:*:*:* |
Date Public
2026-07-05 00:00
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CVE-2026-82393 (GCVE-0-2026-82393)
Vulnerability from cvelistv5 – Published: 2026-08-31 21:12 – Updated: 2026-09-01 14:30
VLAI
EPSS
VEX
Title
pnpm: A tarball dependency's manifest `name` escapes node_modules → arbitrary file write/overwrite on install
Summary
pnpm is a package manager. Prior to 10.34.5 and 11.11.0, pnpm accepts a scoped path traversal in a tarball dependency's package.json manifest name because pnpm11/resolving/npm-resolver/src/pickPackage.ts rejects slash characters only for unscoped names. During pnpm install, the unvalidated name reaches raw path joins in pnpm11/installing/deps-resolver/src/resolvePeers.ts, pnpm11/installing/deps-resolver/src/index.ts, and pnpm11/deps/graph-builder/src/lockfileToDepGraph.ts, causing package extraction outside node_modules and allowing attacker-controlled files to overwrite arbitrary filesystem paths even when --ignore-scripts is used. The overwrite can replace shell startup files, Git hooks, or installed package code and lead to code execution. This issue is fixed in versions 10.34.5, and 11.11.0.
Severity
7.5 (High)
SSVC
Exploitation: poc
Automatable: no
Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-09-01 14:29 UTC
CWE
Assigner
References
7 references
| URL | Tags |
|---|---|
| https://github.com/pnpm/pnpm/security/advisories/… | x_refsource_CONFIRM |
| https://github.com/pnpm/pnpm/pull/12872 | x_refsource_MISC |
| https://github.com/pnpm/pnpm/pull/12890 | x_refsource_MISC |
| https://github.com/pnpm/pnpm/commit/51300fd41c5e4… | x_refsource_MISC |
| https://github.com/pnpm/pnpm/commit/78e29fe5583a1… | x_refsource_MISC |
| https://github.com/pnpm/pnpm/releases/tag/v10.34.5 | x_refsource_MISC |
| https://github.com/pnpm/pnpm/releases/tag/v11.11.0 | x_refsource_MISC |
Impacted products
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CVE-2026-81726 (GCVE-0-2026-81726)
Vulnerability from cvelistv5 – Published: 2026-08-27 14:51 – Updated: 2026-08-27 19:29
VLAI
EPSS
VEX
Title
NLTK through 3.10.3 Path Traversal via Model-Artifact APIs
Summary
NLTK through 3.10.3 contains a path traversal vulnerability in model-artifact APIs that bypass pathsec enforcement by using raw file operations on caller-controlled paths. Attackers can read or write files outside allowed sandbox roots through TransitionParser, AveragedPerceptron, PerceptronTagger, and maxent parameter APIs when pathsec is enabled.
Severity
SSVC
Exploitation: poc
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-08-27 19:29 UTC
CWE
- CWE-73 - External Control of File Name or Path
Assigner
References
2 references
| URL | Tags |
|---|---|
| https://github.com/nltk/nltk/security/advisories/… | vendor-advisory |
| https://www.vulncheck.com/advisories/nltk-through… | third-party-advisory |
Impacted products
Date Public
2026-08-12 00:00
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CVE-2026-79674 (GCVE-0-2026-79674)
Vulnerability from cvelistv5 – Published: 2026-08-25 15:16 – Updated: 2026-08-25 17:42
VLAI
EPSS
VEX
Title
NLTK 3.10.2 Path Traversal via corpus-reader constructors
Summary
NLTK versions before 3.10.3 contain a path sandbox bypass vulnerability in corpus-reader constructors that allows attackers to read files outside the intended data root. Attackers can supply arbitrary corpus root paths to LinThesaurusCorpusReader and PanLexLiteCorpusReader constructors to access filesystem content and SQLite databases outside the pathsec sandbox boundary.
Severity
SSVC
Exploitation: poc
Automatable: yes
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-08-25 17:42 UTC
CWE
- CWE-73 - External Control of File Name or Path
Assigner
References
2 references
| URL | Tags |
|---|---|
| https://github.com/nltk/nltk/security/advisories/… | vendor-advisory |
| https://www.vulncheck.com/advisories/nltk-path-tr… | third-party-advisory |
Impacted products
Date Public
2026-08-11 00:00
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CVE-2026-79653 (GCVE-0-2026-79653)
Vulnerability from cvelistv5 – Published: 2026-08-27 13:25 – Updated: 2026-08-27 19:45
VLAI
EPSS
VEX
Summary
In Eclipse SW360 versions 19.0.0, 19.1.0, 19.2.0, 20.0.0, 20.1.0, if the system is configured to use file system storage with config key enable.attachment.store.to.file.system, the attacker can manipulate the filename upon upload and can essentially cause arbitrary file path traversal.
The immediate workaround is to disable enable.attachment.store.to.file.system or update to fixed versions.
Severity
SSVC
Exploitation: poc
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-08-27 19:44 UTC
CWE
Assigner
References
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| Eclipse Foundation | Eclipse SW360 |
Affected:
19.0.0 , ≤ 19.2.0
(semver)
Affected: 20.0.0 , < 20.0.1 (semver) Affected: 20.1.0 , < 20.1.1 (semver) |
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CVE-2026-78679 (GCVE-0-2026-78679)
Vulnerability from cvelistv5 – Published: 2026-08-25 01:30 – Updated: 2026-08-27 14:56
VLAI
EPSS
VEX
Title
GitPython before 3.1.59 Arbitrary File Read via TagReference.create
Summary
GitPython before 3.1.59 contains an arbitrary file read vulnerability in TagReference.create() where a positional reference parameter bypasses the unsafe option guard. Attackers can supply a reference value like --file=<path> to read arbitrary files, with contents returned in the annotated tag message.
Severity
SSVC
Exploitation: poc
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-08-27 14:56 UTC
CWE
- CWE-73 - External Control of File Name or Path
Assigner
References
2 references
| URL | Tags |
|---|---|
| https://github.com/gitpython-developers/GitPython… | vendor-advisory |
| https://www.vulncheck.com/advisories/gitpython-be… | third-party-advisory |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| gitpython-developers | GitPython |
Affected:
0 , < 3.1.59
(semver)
Unaffected: 3.1.59 (semver) cpe:2.3:a:gitpython_project:gitpython:*:*:*:*:*:*:*:* |
Date Public
2026-08-10 00:00
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CVE-2026-78675 (GCVE-0-2026-78675)
Vulnerability from cvelistv5 – Published: 2026-08-25 01:30 – Updated: 2026-08-25 12:52
VLAI
EPSS
VEX
Title
GitPython before 3.1.59 Local File Content Disclosure via .gitmodules
Summary
GitPython before 3.1.59 fails to disable merge_includes when parsing .gitmodules, allowing attackers to disclose local file content by including arbitrary file paths via [include] directives. Attackers can craft a malicious .gitmodules file with include directives pointing to sensitive files; when repo.submodules is accessed, GitConfigParser raises MissingSectionHeaderError embedding the target file's first line verbatim in the exception message.
Severity
SSVC
Exploitation: poc
Automatable: no
Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-08-25 12:52 UTC
CWE
- CWE-73 - External Control of File Name or Path
Assigner
References
2 references
| URL | Tags |
|---|---|
| https://github.com/gitpython-developers/GitPython… | vendor-advisory |
| https://www.vulncheck.com/advisories/gitpython-be… | third-party-advisory |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| gitpython-developers | GitPython |
Affected:
0 , < 3.1.59
(semver)
Unaffected: 3.1.59 (semver) cpe:2.3:a:gitpython_project:gitpython:*:*:*:*:*:*:*:* |
Date Public
2026-08-10 00:00
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CVE-2026-78208 (GCVE-0-2026-78208)
Vulnerability from cvelistv5 – Published: 2026-08-24 00:30 – Updated: 2026-08-29 11:47
VLAI
EPSS
VEX
Title
exceljs through 4.4.0 Path Traversal via Unvalidated addImage filename
Summary
exceljs through 4.4.0 contains a path traversal vulnerability in the Workbook.addImage() function that fails to validate file paths. Attackers can supply arbitrary file paths to read any file accessible to the Node.js process and embed it in the generated workbook.
Severity
SSVC
Exploitation: none
Automatable: yes
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-08-26 15:58 UTC
CWE
- CWE-73 - External Control of File Name or Path
Assigner
References
5 references
| URL | Tags |
|---|---|
| https://github.com/exceljs/exceljs | product |
| https://github.com/mateocallec/exceljs-hardened/s… | third-party-advisory |
| https://github.com/exceljs/exceljs/blob/v4.4.0/li… | technical-description |
| https://github.com/exceljs/exceljs/blob/v4.4.0/li… | technical-description |
| https://www.vulncheck.com/advisories/exceljs-thro… | third-party-advisory |
Impacted products
Date Public
2026-08-23 00:00
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CVE-2026-77176 (GCVE-0-2026-77176)
Vulnerability from cvelistv5 – Published: 2026-08-20 16:20 – Updated: 2026-09-01 11:44
VLAI
EPSS
VEX
Title
Kata-containers: insufficient validation of createcontainer mount and storage rules in genpolicy
Summary
A flaw was found in Kata Containers. In configurations utilizing genpolicy for Confidential Containers guest protection, a malicious host operator can exploit insufficient validation of CreateContainer mount and storage rules. This allows them to mount arbitrary container-rootfs paths over sensitive host locations or provision arbitrary content, potentially exposing confidential information or enabling the acceptance of attacker-controlled input.
Severity
8.1 (High)
SSVC
Exploitation: none
Automatable: no
Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-08-21 15:45 UTC
CWE
- CWE-73 - External Control of File Name or Path
Assigner
References
4 references
| URL | Tags |
|---|---|
| https://access.redhat.com/security/cve/CVE-2026-77176 | vdb-entryx_refsource_REDHAT |
| https://bugzilla.redhat.com/show_bug.cgi?id=2517502 | issue-trackingx_refsource_REDHAT |
| https://github.com/kata-containers/kata-container… | |
| http://www.openwall.com/lists/oss-security/2026/0… |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| Red Hat | Red Hat OpenShift Container Platform 4 |
cpe:/a:redhat:openshift:4
|
Date Public
2026-08-20 12:00
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Mitigation
Architecture and Design
When the set of filenames is limited or known, create a mapping from a set of fixed input values (such as numeric IDs) to the actual filenames, and reject all other inputs. For example, ID 1 could map to "inbox.txt" and ID 2 could map to "profile.txt". Features such as the ESAPI AccessReferenceMap provide this capability.
Mitigation
Architecture and Design
Operation
- Run your code in a "jail" or similar sandbox environment that enforces strict boundaries between the process and the operating system. This may effectively restrict all access to files within a particular directory.
- Examples include the Unix chroot jail and AppArmor. In general, managed code may provide some protection.
- This may not be a feasible solution, and it only limits the impact to the operating system; the rest of your application may still be subject to compromise.
- Be careful to avoid CWE-243 and other weaknesses related to jails.
Mitigation
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-5.1
Implementation
Strategy: Input Validation
- Assume 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 of acceptable values, missing or extra inputs, syntax, consistency across related fields, and conformance to business rules. As an example of business rule logic, "boat" may be syntactically valid because it only contains alphanumeric characters, but it is not valid if the input is only expected to contain colors such as "red" or "blue."
- Do not rely exclusively on looking for malicious or malformed inputs. This is likely to miss at least one undesirable input, especially if the code's environment changes. This can give attackers enough room to bypass the intended validation. However, denylists can be useful for detecting potential attacks or determining which inputs are so malformed that they should be rejected outright.
- When validating filenames, use stringent allowlists that limit the character set to be used. If feasible, only allow a single "." character in the filename to avoid weaknesses such as CWE-23, and exclude directory separators such as "/" to avoid CWE-36. Use a list of allowable file extensions, which will help to avoid CWE-434.
- Do not rely exclusively on a filtering mechanism that removes potentially dangerous characters. This is equivalent to a denylist, which may be incomplete (CWE-184). For example, filtering "/" is insufficient protection if the filesystem also supports the use of "\" as a directory separator. Another possible error could occur when the filtering is applied in a way that still produces dangerous data (CWE-182). For example, if "../" sequences are removed from the ".../...//" string in a sequential fashion, two instances of "../" would be removed from the original string, but the remaining characters would still form the "../" string.
Mitigation
Implementation
Use a built-in path canonicalization function (such as realpath() in C) that produces the canonical version of the pathname, which effectively removes ".." sequences and symbolic links (CWE-23, CWE-59).
Mitigation
Installation
Operation
Use OS-level permissions and run as a low-privileged user to limit the scope of any successful attack.
Mitigation
Operation
Implementation
If you are using PHP, configure your application so that it does not use register_globals. During implementation, develop your 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
Testing
Use tools and techniques that require manual (human) analysis, such as penetration testing, threat modeling, and interactive tools that allow the tester to record and modify an active session. These may be more effective than strictly automated techniques. This is especially the case with weaknesses that are related to design and business rules.
CAPEC-13: Subverting Environment Variable Values
The adversary directly or indirectly modifies environment variables used by or controlling the target software. The adversary's goal is to cause the target software to deviate from its expected operation in a manner that benefits the adversary.
CAPEC-267: Leverage Alternate Encoding
An adversary leverages the possibility to encode potentially harmful input or content used by applications such that the applications are ineffective at validating this encoding standard.
CAPEC-64: Using Slashes and URL Encoding Combined to Bypass Validation Logic
This attack targets the encoding of the URL combined with the encoding of the slash characters. An attacker can take advantage of the multiple ways of encoding a URL and abuse the interpretation of the URL. A URL may contain special character that need special syntax handling in order to be interpreted. Special characters are represented using a percentage character followed by two digits representing the octet code of the original character (%HEX-CODE). For instance US-ASCII space character would be represented with %20. This is often referred as escaped ending or percent-encoding. Since the server decodes the URL from the requests, it may restrict the access to some URL paths by validating and filtering out the URL requests it received. An attacker will try to craft an URL with a sequence of special characters which once interpreted by the server will be equivalent to a forbidden URL. It can be difficult to protect against this attack since the URL can contain other format of encoding such as UTF-8 encoding, Unicode-encoding, etc.
CAPEC-72: URL Encoding
This attack targets the encoding of the URL. An adversary can take advantage of the multiple way of encoding an URL and abuse the interpretation of the URL.
CAPEC-76: Manipulating Web Input to File System Calls
An attacker manipulates inputs to the target software which the target software passes to file system calls in the OS. The goal is to gain access to, and perhaps modify, areas of the file system that the target software did not intend to be accessible.
CAPEC-78: Using Escaped Slashes in Alternate Encoding
This attack targets the use of the backslash in alternate encoding. An adversary can provide a backslash as a leading character and causes a parser to believe that the next character is special. This is called an escape. By using that trick, the adversary tries to exploit alternate ways to encode the same character which leads to filter problems and opens avenues to attack.
CAPEC-79: Using Slashes in Alternate Encoding
This attack targets the encoding of the Slash characters. An adversary would try to exploit common filtering problems related to the use of the slashes characters to gain access to resources on the target host. Directory-driven systems, such as file systems and databases, typically use the slash character to indicate traversal between directories or other container components. For murky historical reasons, PCs (and, as a result, Microsoft OSs) choose to use a backslash, whereas the UNIX world typically makes use of the forward slash. The schizophrenic result is that many MS-based systems are required to understand both forms of the slash. This gives the adversary many opportunities to discover and abuse a number of common filtering problems. The goal of this pattern is to discover server software that only applies filters to one version, but not the other.
CAPEC-80: Using UTF-8 Encoding to Bypass Validation Logic
This attack is a specific variation on leveraging alternate encodings to bypass validation logic. This attack leverages the possibility to encode potentially harmful input in UTF-8 and submit it to applications not expecting or effective at validating this encoding standard making input filtering difficult. UTF-8 (8-bit UCS/Unicode Transformation Format) is a variable-length character encoding for Unicode. Legal UTF-8 characters are one to four bytes long. However, early version of the UTF-8 specification got some entries wrong (in some cases it permitted overlong characters). UTF-8 encoders are supposed to use the "shortest possible" encoding, but naive decoders may accept encodings that are longer than necessary. According to the RFC 3629, a particularly subtle form of this attack can be carried out against a parser which performs security-critical validity checks against the UTF-8 encoded form of its input, but interprets certain illegal octet sequences as characters.