CWE-1333

Inefficient Regular Expression Complexity

The product uses a regular expression with an inefficient, possibly exponential worst-case computational complexity that consumes excessive CPU cycles.

CVE-2024-10270 (GCVE-0-2024-10270)
Vulnerability from cvelistv5
Published
2024-11-25 07:37
Modified
2025-08-30 09:15
Severity ?
6.5 (Medium) - CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
CWE
  • CWE-1333 - Inefficient Regular Expression Complexity
Summary
A vulnerability was found in the Keycloak-services package. If untrusted data is passed to the SearchQueryUtils method, it could lead to a denial of service (DoS) scenario by exhausting system resources due to a Regex complexity.
References
https://access.redhat.com/errata/RHSA-2024:10175vendor-advisory, x_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2024:10176vendor-advisory, x_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2024:10177vendor-advisory, x_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2024:10178vendor-advisory, x_refsource_REDHAT
https://access.redhat.com/security/cve/CVE-2024-10270vdb-entry, x_refsource_REDHAT
https://bugzilla.redhat.com/show_bug.cgi?id=2321214issue-tracking, x_refsource_REDHAT
Impacted products
Vendor Product Version
Version: 0   ≤
Version: 25.0.0   ≤
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   Red Hat Red Hat build of Keycloak 24 Unaffected: 24.0.9-1   < *
    cpe:/a:redhat:build_keycloak:24::el9
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   Red Hat Red Hat build of Keycloak 24 Unaffected: 24-18   < *
    cpe:/a:redhat:build_keycloak:24::el9
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   Red Hat Red Hat build of Keycloak 24 Unaffected: 24-18   < *
    cpe:/a:redhat:build_keycloak:24::el9
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   Red Hat Red Hat build of Keycloak 24.0.9     cpe:/a:redhat:build_keycloak:24
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   Red Hat Red Hat build of Keycloak 26.0 Unaffected: 26.0.6-2   < *
    cpe:/a:redhat:build_keycloak:26.0::el9
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   Red Hat Red Hat build of Keycloak 26.0 Unaffected: 26.0-5   < *
    cpe:/a:redhat:build_keycloak:26.0::el9
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   Red Hat Red Hat build of Keycloak 26.0 Unaffected: 26.0-6   < *
    cpe:/a:redhat:build_keycloak:26.0::el9
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   Red Hat Red Hat build of Keycloak 26.0.6     cpe:/a:redhat:build_keycloak:26
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   Red Hat Red Hat JBoss Enterprise Application Platform 8     cpe:/a:redhat:jboss_enterprise_application_platform:8
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   Red Hat Red Hat JBoss Enterprise Application Platform Expansion Pack     cpe:/a:redhat:jbosseapxp
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   Red Hat Red Hat Single Sign-On 7     cpe:/a:redhat:red_hat_single_sign_on:7
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CVE-2025-2937 (GCVE-0-2025-2937)
Vulnerability from cvelistv5
Published
2025-08-13 17:26
Modified
2025-08-13 20:03
Severity ?
6.5 (Medium) - CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
CWE
  • CWE-1333 - Inefficient Regular Expression Complexity
Summary
An issue has been discovered in GitLab CE/EE affecting all versions from 13.2 before 18.0.6, 18.1 before 18.1.4, and 18.2 before 18.2.2 that could have allowed authenticated users to create a denial of service condition by sending specially crafted markdown payloads to the Wiki feature.
References
https://gitlab.com/gitlab-org/gitlab/-/issues/528995issue-tracking, permissions-required
https://hackerone.com/reports/3058879technical-description, exploit, permissions-required
Impacted products
Vendor Product Version
GitLab GitLab Version: 13.2   ≤
Version: 18.1   ≤
Version: 18.2   ≤
    cpe:2.3:a:gitlab:gitlab:*:*:*:*:*:*:*:*
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CVE-2025-3262 (GCVE-0-2025-3262)
Vulnerability from cvelistv5
Published
2025-07-07 09:54
Modified
2025-07-07 15:19
Severity ?
5.3 (Medium) - CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L
CWE
  • CWE-1333 - Inefficient Regular Expression Complexity
Summary
A Regular Expression Denial of Service (ReDoS) vulnerability was discovered in the huggingface/transformers repository, specifically in version 4.49.0. The vulnerability is due to inefficient regular expression complexity in the `SETTING_RE` variable within the `transformers/commands/chat.py` file. The regex contains repetition groups and non-optimized quantifiers, leading to exponential backtracking when processing 'almost matching' payloads. This can degrade application performance and potentially result in a denial-of-service (DoS) when handling specially crafted input strings. The issue is fixed in version 4.51.0.
References
https://huntr.com/bounties/ecf5ccc4-39e7-4fb3-b547-14a41d31a184
https://github.com/huggingface/transformers/commit/0720e206c6ba28887e4d60ef60a6a089f6c1cc76
Impacted products
Vendor Product Version
huggingface huggingface/transformers Version: unspecified   < 4.51.0
 Create a notification for this product.
Show details on NVD website

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CVE-2025-3263 (GCVE-0-2025-3263)
Vulnerability from cvelistv5
Published
2025-07-07 09:54
Modified
2025-07-07 14:51
Severity ?
5.3 (Medium) - CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L
CWE
  • CWE-1333 - Inefficient Regular Expression Complexity
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.
References
https://huntr.com/bounties/c7a69150-54f8-4e81-8094-791e7a2a0f29
https://github.com/huggingface/transformers/commit/0720e206c6ba28887e4d60ef60a6a089f6c1cc76
Impacted products
Vendor Product Version
huggingface huggingface/transformers Version: unspecified   < 4.51.0
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CVE-2025-3264 (GCVE-0-2025-3264)
Vulnerability from cvelistv5
Published
2025-07-07 09:55
Modified
2025-07-07 14:40
Severity ?
5.3 (Medium) - CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L
CWE
  • CWE-1333 - Inefficient Regular Expression Complexity
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.
References
https://huntr.com/bounties/3c6f7822-9992-476d-8cf0-b0b1623427df
https://github.com/huggingface/transformers/commit/0720e206c6ba28887e4d60ef60a6a089f6c1cc76
Impacted products
Vendor Product Version
huggingface huggingface/transformers Version: unspecified   < 4.51.0
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Show details on NVD website

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CVE-2025-33090 (GCVE-0-2025-33090)
Vulnerability from cvelistv5
Published
2025-08-18 14:01
Modified
2025-08-18 14:09
Severity ?
7.5 (High) - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
CWE
  • CWE-1333 - Inefficient Regular Expression Complexity
Summary
IBM Concert Software 1.0.0 through 1.1.0 could allow a remote attacker to cause a denial of service using a specially crafted regular expression that would cause excessive resource consumption.
References
https://www.ibm.com/support/pages/node/7242354vendor-advisory, patch
Impacted products
Vendor Product Version
IBM Concert Software Version: 1.0.0   ≤ 1.1.0
    cpe:2.3:a:ibm:concert:1.0.0:*:*:*:*:*:*:*
    cpe:2.3:a:ibm:concert:1.0.1:*:*:*:*:*:*:*
 Create a notification for this product.
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CVE-2025-3933 (GCVE-0-2025-3933)
Vulnerability from cvelistv5
Published
2025-07-11 09:22
Modified
2025-07-11 15:07
Severity ?
5.3 (Medium) - CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L
CWE
  • CWE-1333 - Inefficient Regular Expression Complexity
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.
References
https://huntr.com/bounties/25282953-5827-4384-bb6f-5790d275721b
https://github.com/huggingface/transformers/commit/ebbe9b12dd75b69f92100d684c47f923ee262a93
Impacted products
Vendor Product Version
huggingface huggingface/transformers Version: unspecified   < 4.52.1
 Create a notification for this product.
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CVE-2025-43764 (GCVE-0-2025-43764)
Vulnerability from cvelistv5
Published
2025-08-23 04:49
Modified
2025-08-25 18:44
Severity ?
6.9 (Medium) - CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:P/VC:L/VI:L/VA:H/SC:L/SI:L/SA:N
CWE
  • CWE-1333 - Inefficient Regular Expression Complexity
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.
References
https://liferay.dev/portal/security/known-vulnerabilities/-/asset_publisher/jekt/content/CVE-2025-43764
Impacted products
Vendor Product Version
Liferay Portal Version: 7.4.3.0
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   Liferay DXP Version: 7.4.13
Version: 2024.Q1.1
Version: 2024.Q2.1
Version: 2024.Q3.0
Version: 2024.Q4.0
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CVE-2025-4690 (GCVE-0-2025-4690)
Vulnerability from cvelistv5
Published
2025-08-19 13:19
Modified
2025-08-19 13:35
Severity ?
4.3 (Medium) - CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:L
CWE
  • CWE-1333 - Inefficient Regular Expression Complexity
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 .
References
https://www.herodevs.com/vulnerability-directory/cve-2025-4690third-party-advisory
https://codepen.io/herodevs/pen/RNNEPzP/751b91eab7730dff277523f3d50e4b77technical-description, exploit
Impacted products
Vendor Product Version
Google AngularJS Version: >=0.0.0   ≤
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CVE-2025-5197 (GCVE-0-2025-5197)
Vulnerability from cvelistv5
Published
2025-08-06 11:53
Modified
2025-08-06 13:03
Severity ?
5.3 (Medium) - CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L
CWE
  • CWE-1333 - Inefficient Regular Expression Complexity
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.
References
https://huntr.com/bounties/3f8b3fd0-166b-46e7-b60f-60dd9d2678bf
https://github.com/huggingface/transformers/commit/944b56000be5e9b61af8301aa340838770ad8a0b
Impacted products
Vendor Product Version
huggingface huggingface/transformers Version: unspecified   < 4.53.0
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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.

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