CWE-1333
Inefficient Regular Expression Complexity
The product uses a regular expression with a worst-case computational complexity that is inefficient and possibly exponential.
CVE-2025-4215 (GCVE-0-2025-4215)
Vulnerability from cvelistv5 – Published: 2025-05-02 20:31 – Updated: 2025-06-12 00:12
VLAI
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-2025-43764 (GCVE-0-2025-43764)
Vulnerability from cvelistv5 – Published: 2025-08-23 04:49 – Updated: 2025-08-25 18:44
VLAI
Summary
Self-ReDoS (Regular expression Denial of Service) exists with Role Name search field of Kaleo Designer portlet JavaScript in Liferay Portal 7.4.0 through 7.4.3.131, and Liferay DXP 2024.Q4.0 through 2024.Q4.1, 2024.Q3.0 through 2024.Q3.13, 2024.Q2.1 through 2024.Q2.13, 2024.Q1.1 through 2024.Q1.20 and 7.4 GA through update 92, which allows authenticated users with permissions to update Kaleo Workflows to enter a malicious Regex pattern causing their browser to hang for a very long time.
Severity
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
- CWE-1333 - Inefficient Regular Expression Complexity
Assigner
References
1 reference
Impacted products
2 products
| Vendor | Product | Version | |
|---|---|---|---|
| Liferay | Portal |
Affected:
7.4.3.0 , ≤ 7.4.3.131
(maven)
|
|
| Liferay | DXP |
Affected:
7.4.13 , ≤ 7.4.13-u92
(maven)
Affected: 2024.Q1.1 , ≤ 2024.Q1.20 (maven) Affected: 2024.Q2.1 , ≤ 2024.Q2.13 (maven) Affected: 2024.Q3.0 , ≤ 2024.Q3.13 (maven) Affected: 2024.Q4.0 , ≤ 2024.Q4.1 (maven) |
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CVE-2025-43880 (GCVE-0-2025-43880)
Vulnerability from cvelistv5 – Published: 2025-06-25 05:31 – Updated: 2025-06-25 13:35
VLAI
Summary
Inefficient regular expression complexity issue exists in GROWI prior to v7.1.6. If exploited, a logged-in user may cause a denial of service (DoS) condition.
Severity
4.3 (Medium)
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
- CWE-1333 - Inefficient regular expression complexity
Assigner
References
2 references
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| GROWI, Inc. | GROWI |
Affected:
prior to v7.1.6
|
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CVE-2025-46560 (GCVE-0-2025-46560)
Vulnerability from cvelistv5 – Published: 2025-04-30 00:24 – Updated: 2025-04-30 13:09
VLAI
Title
vLLM phi4mm: Quadratic Time Complexity in Input Token Processing leads to denial of service
Summary
vLLM is a high-throughput and memory-efficient inference and serving engine for LLMs. Versions starting from 0.8.0 and prior to 0.8.5 are affected by a critical performance vulnerability in the input preprocessing logic of the multimodal tokenizer. The code dynamically replaces placeholder tokens (e.g., <|audio_|>, <|image_|>) with repeated tokens based on precomputed lengths. Due to inefficient list concatenation operations, the algorithm exhibits quadratic time complexity (O(n²)), allowing malicious actors to trigger resource exhaustion via specially crafted inputs. This issue has been patched in version 0.8.5.
Severity
6.5 (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://github.com/vllm-project/vllm/security/adv… | x_refsource_CONFIRM |
| https://github.com/vllm-project/vllm/blob/8cac35b… | x_refsource_MISC |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| vllm-project | vllm |
Affected:
>= 0.8.0, < 0.8.5
|
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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
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 |
Credits
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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
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 |
|---|---|
| https://vuldb.com/?id.309029 | vdb-entrytechnical-description |
| https://vuldb.com/?ctiid.309029 | signaturepermissions-required |
| https://vuldb.com/?submit.570441 | third-party-advisory |
| 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 |
Credits
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CVE-2025-48058 (GCVE-0-2025-48058)
Vulnerability from cvelistv5 – Published: 2025-06-20 00:39 – Updated: 2025-06-20 13:28
VLAI
Title
PowSyBl Core contains Polynomial REDoS’es
Summary
PowSyBl (Power System Blocks) is a framework to build power system oriented software. Prior to version 6.7.2, there is a potential polynomial Regular Expression Denial of Service (ReDoS) vulnerability in the PowSyBl's DataSource mechanism. If successfully exploited, a malicious actor can cause significant CPU consumption due to regex backtracking — even with polynomial patterns. This issue has been patched in com.powsybl:powsybl-commons: 6.7.2.
Severity
SSVC
Exploitation: none
Automatable: yes
Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
- CWE-1333 - Inefficient Regular Expression Complexity
Assigner
References
3 references
| URL | Tags |
|---|---|
| https://github.com/powsybl/powsybl-core/security/… | x_refsource_CONFIRM |
| https://github.com/powsybl/powsybl-core/commit/72… | x_refsource_MISC |
| https://github.com/powsybl/powsybl-core/releases/… | x_refsource_MISC |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| powsybl | powsybl-core |
Affected:
< 6.7.2
|
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CVE-2025-48059 (GCVE-0-2025-48059)
Vulnerability from cvelistv5 – Published: 2025-06-20 16:50 – Updated: 2025-06-20 17:37
VLAI
Title
PowSyBl Core Contains a Polynomial ReDoS in RegexCriterion
Summary
PowSyBl (Power System Blocks) is a framework to build power system oriented software. In com.powsybl:powsybl-iidm-criteria versions 6.3.0 to before 6.7.2 and com.powsybl:powsybl-contingency-api versions 5.0.0 to before 6.3.0, there is a a potential polynomial Regular Expression Denial of Service (ReDoS) vulnerability in the RegexCriterion class. This class compiles and evaluates an unvalidated, user-supplied regular expression against the identifier of an Identifiable object via Pattern.compile(regex).matcher(id).find(). If successfully exploited, a malicious actor can cause significant CPU exhaustion through repeated or recursive filter(...) calls — especially if performed over large network models or filtering operations. This issue has been patched in com.powsybl:powsybl-iidm-criteria 6.7.2.
Severity
SSVC
Exploitation: none
Automatable: yes
Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
- CWE-1333 - Inefficient Regular Expression Complexity
Assigner
References
3 references
| URL | Tags |
|---|---|
| https://github.com/powsybl/powsybl-core/security/… | x_refsource_CONFIRM |
| https://github.com/powsybl/powsybl-core/commit/d8… | x_refsource_MISC |
| https://github.com/powsybl/powsybl-core/releases/… | x_refsource_MISC |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| powsybl | powsybl-core |
Affected:
>= 6.3.0, < 6.7.2
Affected: >= 5.0.0, < 6.3.0 |
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CVE-2025-48887 (GCVE-0-2025-48887)
Vulnerability from cvelistv5 – Published: 2025-05-30 17:36 – Updated: 2025-05-30 17:58
VLAI
Title
vLLM has a Regular Expression Denial of Service (ReDoS, Exponential Complexity) Vulnerability in `pythonic_tool_parser.py`
Summary
vLLM, an inference and serving engine for large language models (LLMs), has a Regular Expression Denial of Service (ReDoS) vulnerability in the file `vllm/entrypoints/openai/tool_parsers/pythonic_tool_parser.py` of versions 0.6.4 up to but excluding 0.9.0. The root cause is the use of a highly complex and nested regular expression for tool call detection, which can be exploited by an attacker to cause severe performance degradation or make the service unavailable. The pattern contains multiple nested quantifiers, optional groups, and inner repetitions which make it vulnerable to catastrophic backtracking. Version 0.9.0 contains a patch for the issue.
Severity
6.5 (Medium)
SSVC
Exploitation: poc
Automatable: no
Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
- CWE-1333 - Inefficient Regular Expression Complexity
Assigner
References
3 references
| URL | Tags |
|---|---|
| https://github.com/vllm-project/vllm/security/adv… | x_refsource_CONFIRM |
| https://github.com/vllm-project/vllm/pull/18454 | x_refsource_MISC |
| https://github.com/vllm-project/vllm/commit/4fc1b… | x_refsource_MISC |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| vllm-project | vllm |
Affected:
>= 0.6.4, < 0.9.0
|
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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
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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Mitigation
Phase: Architecture and Design
Description:
- Use regular expressions that do not support backtracking, e.g. by removing nested quantifiers.
Mitigation
Phase: System Configuration
Description:
- 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
Phase: Implementation
Description:
- Do not use regular expressions with untrusted input. If regular expressions must be used, avoid using backtracking in the expression.
Mitigation
Phase: Implementation
Description:
- 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.