Common Weakness Enumeration
CWE-1333
AllowedInefficient Regular Expression Complexity
Abstraction: Base · Status: Draft
The product uses a regular expression with a worst-case computational complexity that is inefficient and possibly exponential.
725 vulnerabilities reference this CWE, most recent first.
CVE-2025-5889 (GCVE-0-2025-5889)
Vulnerability from cvelistv5 – Published: 2025-06-09 18:16 – Updated: 2025-06-11 10:39
VLAI
EPSS
VEX
Title
juliangruber brace-expansion index.js expand redos
Summary
A vulnerability was found in juliangruber brace-expansion up to 1.1.11/2.0.1/3.0.0/4.0.0. It has been rated as problematic. Affected by this issue is the function expand of the file index.js. The manipulation leads to inefficient regular expression complexity. The attack may be launched remotely. The complexity of an attack is rather high. The exploitation is known to be difficult. The exploit has been disclosed to the public and may be used. Upgrading to version 1.1.12, 2.0.2, 3.0.1 and 4.0.1 is able to address this issue. The name of the patch is a5b98a4f30d7813266b221435e1eaaf25a1b0ac5. It is recommended to upgrade the affected component.
Severity
SSVC
Exploitation: poc
Automatable: no
Technical Impact: partial
CISA Coordinator (v2.0.3)
Assigner
References
6 references
| URL | Tags |
|---|---|
| https://vuldb.com/?id.311660 | vdb-entrytechnical-description |
| https://vuldb.com/?ctiid.311660 | signaturepermissions-required |
| https://vuldb.com/?submit.585717 | third-party-advisory |
| https://gist.github.com/mmmsssttt404/37a40ce7d6e5… | exploit |
| https://github.com/juliangruber/brace-expansion/p… | issue-trackingpatch |
| https://github.com/juliangruber/brace-expansion/r… | patch |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| juliangruber | brace-expansion |
Affected:
1.1.0
Affected: 1.1.1 Affected: 1.1.2 Affected: 1.1.3 Affected: 1.1.4 Affected: 1.1.5 Affected: 1.1.6 Affected: 1.1.7 Affected: 1.1.8 Affected: 1.1.9 Affected: 1.1.10 Affected: 1.1.11 Affected: 2.0.0 Affected: 2.0.1 Affected: 3.0 Affected: 4.0 Unaffected: 1.1.12 Unaffected: 2.0.2 Unaffected: 3.0.1 Unaffected: 4.0.1 |
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CVE-2025-5197 (GCVE-0-2025-5197)
Vulnerability from cvelistv5 – Published: 2025-08-06 11:53 – Updated: 2025-08-06 13:03
VLAI
EPSS
VEX
Title
Regular Expression Denial of Service (ReDoS) in huggingface/transformers
Summary
A Regular Expression Denial of Service (ReDoS) vulnerability exists in the Hugging Face Transformers library, specifically in the `convert_tf_weight_name_to_pt_weight_name()` function. This function, responsible for converting TensorFlow weight names to PyTorch format, uses a regex pattern `/[^/]*___([^/]*)/` that can be exploited to cause excessive CPU consumption through crafted input strings due to catastrophic backtracking. The vulnerability affects versions up to 4.51.3 and is fixed in version 4.53.0. This issue can lead to service disruption, resource exhaustion, and potential API service vulnerabilities, impacting model conversion processes between TensorFlow and PyTorch formats.
Severity
5.3 (Medium)
SSVC
Exploitation: poc
Automatable: yes
Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
- CWE-1333 - Inefficient Regular Expression Complexity
Assigner
References
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| huggingface | huggingface/transformers |
Affected:
unspecified , < 4.53.0
(custom)
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CVE-2025-4727 (GCVE-0-2025-4727)
Vulnerability from cvelistv5 – Published: 2025-05-15 23:00 – Updated: 2025-05-16 13:21
VLAI
EPSS
VEX
Title
Meteor livedata_server.js Object.assign redos
Summary
A vulnerability was found in Meteor up to 3.2.1 and classified as problematic. This issue affects the function Object.assign of the file packages/ddp-server/livedata_server.js. The manipulation of the argument forwardedFor leads to inefficient regular expression complexity. The attack may be initiated remotely. The complexity of an attack is rather high. The exploitation is known to be difficult. The exploit has been disclosed to the public and may be used. Upgrading to version 3.2.2 is able to address this issue. The identifier of the patch is f7ea6817b90952baaea9baace2a3b4366fee6a63. It is recommended to upgrade the affected component.
Severity
SSVC
Exploitation: poc
Automatable: no
Technical Impact: partial
CISA Coordinator (v2.0.3)
Assigner
References
7 references
| URL | Tags |
|---|---|
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| https://github.com/meteor/meteor/issues/13713 | issue-tracking |
| https://github.com/meteor/meteor/pull/13721 | issue-tracking |
| https://github.com/meteor/meteor/commit/f7ea6817b… | patch |
| https://github.com/meteor/meteor/releases/tag/rel… | patch |
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CVE-2025-4690 (GCVE-0-2025-4690)
Vulnerability from cvelistv5 – Published: 2025-08-19 13:19 – Updated: 2025-08-19 13:35 Unsupported When Assigned X_Open Source
VLAI
EPSS
VEX
Title
AngularJS 'linky' filter ReDoS
Summary
A regular expression used by AngularJS' linky https://docs.angularjs.org/api/ngSanitize/filter/linky filter to detect URLs in input text is vulnerable to super-linear runtime due to backtracking. With a large carefully-crafted input, this can cause a
Regular expression Denial of Service (ReDoS) https://owasp.org/www-community/attacks/Regular_expression_Denial_of_Service_-_ReDoS attack on the application.
This issue affects all versions of AngularJS.
Note:
The AngularJS project is End-of-Life and will not receive any updates to address this issue. For more information see here https://docs.angularjs.org/misc/version-support-status .
Severity
4.3 (Medium)
SSVC
Exploitation: poc
Automatable: no
Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
- CWE-1333 - Inefficient Regular Expression Complexity
Assigner
References
2 references
| URL | Tags |
|---|---|
| https://www.herodevs.com/vulnerability-directory/… | third-party-advisory |
| https://codepen.io/herodevs/pen/RNNEPzP/751b91eab… | technical-descriptionexploit |
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CVE-2025-4215 (GCVE-0-2025-4215)
Vulnerability from cvelistv5 – Published: 2025-05-02 20:31 – Updated: 2025-06-12 00:12
VLAI
EPSS
VEX
Title
gorhill uBlock Origin UI 1p-filters.js currentStateChanged redos
Summary
A vulnerability was found in gorhill uBlock Origin up to 1.63.3b16. It has been classified as problematic. Affected is the function currentStateChanged of the file src/js/1p-filters.js of the component UI. The manipulation leads to inefficient regular expression complexity. It is possible to launch the attack remotely. The complexity of an attack is rather high. The exploitability is told to be difficult. The exploit has been disclosed to the public and may be used. Upgrading to version 1.63.3b17 is able to address this issue. The patch is identified as eaedaf5b10d2f7857c6b77fbf7d4a80681d4d46c. It is recommended to upgrade the affected component.
Severity
SSVC
Exploitation: poc
Automatable: no
Technical Impact: partial
CISA Coordinator (v2.0.3)
Assigner
References
6 references
| URL | Tags |
|---|---|
| https://vuldb.com/?id.307194 | vdb-entrytechnical-description |
| https://vuldb.com/?ctiid.307194 | signaturepermissions-required |
| https://vuldb.com/?submit.562301 | third-party-advisory |
| https://github.com/gorhill/uBlock/commit/eaedaf5b… | patch |
| https://github.com/gorhill/uBlock/releases/tag/1.… | patch |
| https://lists.debian.org/debian-lts-announce/2025… |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| gorhill | uBlock Origin |
Affected:
1.63.3b16
|
Credits
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CVE-2025-3986 (GCVE-0-2025-3986)
Vulnerability from cvelistv5 – Published: 2025-04-27 21:00 – Updated: 2025-04-28 17:38
VLAI
EPSS
VEX
Title
Apereo CAS CasConfigurationMetadataServerController.java redos
Summary
A vulnerability was found in Apereo CAS 5.2.6. It has been declared as problematic. This vulnerability affects unknown code of the file cas-5.2.6\core\cas-server-core-configuration-metadata-repository\src\main\java\org\apereo\cas\metadata\rest\CasConfigurationMetadataServerController.java. The manipulation of the argument Name leads to inefficient regular expression complexity. The attack can be initiated remotely. The exploit has been disclosed to the public and may be used. The vendor was contacted early about this disclosure but did not respond in any way.
Severity
4.3 (Medium)
4.3 (Medium)
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator (v2.0.3)
Assigner
References
4 references
| URL | Tags |
|---|---|
| https://vuldb.com/?id.306322 | vdb-entrytechnical-description |
| https://vuldb.com/?ctiid.306322 | signaturepermissions-required |
| https://vuldb.com/?submit.557473 | third-party-advisory |
| https://wx.mail.qq.com/s?k=rk-m8GwRMVMcOjBY1a | exploit |
Credits
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CVE-2025-3985 (GCVE-0-2025-3985)
Vulnerability from cvelistv5 – Published: 2025-04-27 20:31 – Updated: 2025-04-28 18:09
VLAI
EPSS
VEX
Title
Apereo CAS ResponseEntity redos
Summary
A vulnerability was found in Apereo CAS 5.2.6. It has been classified as problematic. This affects the function ResponseEntity of the file cas-5.2.6\webapp-mgmt\cas-management-webapp-support\src\main\java\org\apereo\cas\mgmt\services\web\ManageRegisteredServicesMultiActionController.java. The manipulation of the argument Query leads to inefficient regular expression complexity. It is possible to initiate the attack remotely. The exploit has been disclosed to the public and may be used. The vendor was contacted early about this disclosure but did not respond in any way.
Severity
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator (v2.0.3)
Assigner
References
4 references
| URL | Tags |
|---|---|
| https://vuldb.com/?id.306321 | vdb-entrytechnical-description |
| https://vuldb.com/?ctiid.306321 | signaturepermissions-required |
| https://vuldb.com/?submit.557110 | third-party-advisory |
| https://wx.mail.qq.com/s?k=lzDuxVkSRXUZ0bwZEG | exploit |
Credits
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CVE-2025-3933 (GCVE-0-2025-3933)
Vulnerability from cvelistv5 – Published: 2025-07-11 09:22 – Updated: 2025-07-11 15:07
VLAI
EPSS
VEX
Title
Regular Expression Denial of Service (ReDoS) in huggingface/transformers
Summary
A Regular Expression Denial of Service (ReDoS) vulnerability was discovered in the Hugging Face Transformers library, specifically within the DonutProcessor class's `token2json()` method. This vulnerability affects versions 4.50.3 and earlier, and is fixed in version 4.52.1. The issue arises from the regex pattern `<s_(.*?)>` which can be exploited to cause excessive CPU consumption through crafted input strings due to catastrophic backtracking. This vulnerability can lead to service disruption, resource exhaustion, and potential API service vulnerabilities, impacting document processing tasks using the Donut model.
Severity
5.3 (Medium)
SSVC
Exploitation: poc
Automatable: yes
Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
- CWE-1333 - Inefficient Regular Expression Complexity
Assigner
References
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| huggingface | huggingface/transformers |
Affected:
unspecified , < 4.52.1
(custom)
|
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CVE-2025-3264 (GCVE-0-2025-3264)
Vulnerability from cvelistv5 – Published: 2025-07-07 09:55 – Updated: 2025-07-07 14:40
VLAI
EPSS
VEX
Title
Regular Expression Denial of Service (ReDoS) in huggingface/transformers
Summary
A Regular Expression Denial of Service (ReDoS) vulnerability was discovered in the Hugging Face Transformers library, specifically in the `get_imports()` function within `dynamic_module_utils.py`. This vulnerability affects versions 4.49.0 and is fixed in version 4.51.0. The issue arises from a regular expression pattern `\s*try\s*:.*?except.*?:` used to filter out try/except blocks from Python code, which can be exploited to cause excessive CPU consumption through crafted input strings due to catastrophic backtracking. This vulnerability can lead to remote code loading disruption, resource exhaustion in model serving, supply chain attack vectors, and development pipeline disruption.
Severity
5.3 (Medium)
SSVC
Exploitation: poc
Automatable: yes
Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
- CWE-1333 - Inefficient Regular Expression Complexity
Assigner
References
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| huggingface | huggingface/transformers |
Affected:
unspecified , < 4.51.0
(custom)
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CVE-2025-3263 (GCVE-0-2025-3263)
Vulnerability from cvelistv5 – Published: 2025-07-07 09:54 – Updated: 2025-07-07 14:51
VLAI
EPSS
VEX
Title
Regular Expression Denial of Service (ReDoS) in huggingface/transformers
Summary
A Regular Expression Denial of Service (ReDoS) vulnerability was discovered in the Hugging Face Transformers library, specifically in the `get_configuration_file()` function within the `transformers.configuration_utils` module. The affected version is 4.49.0, and the issue is resolved in version 4.51.0. The vulnerability arises from the use of a regular expression pattern `config\.(.*)\.json` that can be exploited to cause excessive CPU consumption through crafted input strings, leading to catastrophic backtracking. This can result in model serving disruption, resource exhaustion, and increased latency in applications using the library.
Severity
5.3 (Medium)
SSVC
Exploitation: poc
Automatable: yes
Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
- CWE-1333 - Inefficient Regular Expression Complexity
Assigner
References
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| huggingface | huggingface/transformers |
Affected:
unspecified , < 4.51.0
(custom)
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Mitigation
Architecture and Design
Use regular expressions that do not support backtracking, e.g. by removing nested quantifiers.
Mitigation
System Configuration
Set backtracking limits in the configuration of the regular expression implementation, such as PHP's pcre.backtrack_limit. Also consider limits on execution time for the process.
Mitigation
Implementation
Do not use regular expressions with untrusted input. If regular expressions must be used, avoid using backtracking in the expression.
Mitigation
Implementation
Limit the length of the input that the regular expression will process.
CAPEC-492: Regular Expression Exponential Blowup
An adversary may execute an attack on a program that uses a poor Regular Expression(Regex) implementation by choosing input that results in an extreme situation for the Regex. A typical extreme situation operates at exponential time compared to the input size. This is due to most implementations using a Nondeterministic Finite Automaton(NFA) state machine to be built by the Regex algorithm since NFA allows backtracking and thus more complex regular expressions.