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-2024-2800 (GCVE-0-2024-2800)
Vulnerability from cvelistv5 – Published: 2024-08-08 10:31 – Updated: 2024-08-30 13:24
VLAI
Title
Uncontrolled Resource Consumption in GitLab
Summary
ReDoS flaw in RefMatcher when matching branch names using wildcards in GitLab EE/CE affecting all versions from 11.3 prior to 17.0.6, 17.1 prior to 17.1.4, and 17.2 prior to 17.2.2 allows denial of service via Regex backtracking.
Severity
6.5 (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
| URL | Tags |
|---|---|
| https://gitlab.com/gitlab-org/gitlab/-/issues/451293 | issue-trackingpermissions-required |
| https://hackerone.com/reports/2416332 | technical-descriptionexploitpermissions-required |
Impacted products
Credits
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CVE-2024-2829 (GCVE-0-2024-2829)
Vulnerability from cvelistv5 – Published: 2024-04-25 11:02 – Updated: 2025-11-20 04:12
VLAI
Title
Inefficient Regular Expression Complexity in GitLab
Summary
An issue has been discovered in GitLab CE/EE affecting all versions starting from 12.5 before 16.9.6, all versions starting from 16.10 before 16.10.4, all versions starting from 16.11 before 16.11.1. A crafted wildcard filter in FileFinder may lead to a denial of service.
Severity
7.5 (High)
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
- CWE-1333 - Inefficient Regular Expression Complexity
Assigner
References
2 references
| URL | Tags |
|---|---|
| https://gitlab.com/gitlab-org/gitlab/-/issues/451456 | issue-trackingpermissions-required |
| https://hackerone.com/reports/2416728 | technical-descriptionexploitpermissions-required |
Impacted products
Credits
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CVE-2024-28864 (GCVE-0-2024-28864)
Vulnerability from cvelistv5 – Published: 2024-03-18 21:49 – Updated: 2024-08-02 00:56
VLAI
Title
[TagAwareCipher] - Decryption Failure (Regex Match)
Summary
SecureProps is a PHP library designed to simplify the encryption and decryption of property data in objects. A vulnerability in SecureProps version 1.2.0 and 1.2.1 involves a regex failing to detect tags during decryption of encrypted data. This occurs when the encrypted data has been encoded with `NullEncoder` and passed to `TagAwareCipher`, and contains special characters such as `\n`. As a result, the decryption process is skipped since the tags are not detected. This causes the encrypted data to be returned in plain format. The vulnerability affects users who implement `TagAwareCipher` with any base cipher that has `NullEncoder` (not default). The patch for the issue has been released. Users are advised to update to version 1.2.2. As a workaround, one may use the default `Base64Encoder` with the base cipher decorated with `TagAwareCipher` to prevent special characters in the encrypted string from interfering with regex tag detection logic. This workaround is safe but may involve double encoding since `TagAwareCipher` uses `NullEncoder` by default.
Severity
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
- CWE-1333 - Inefficient Regular Expression Complexity
Assigner
References
4 references
| URL | Tags |
|---|---|
| https://github.com/IlicMiljan/Secure-Props/securi… | x_refsource_CONFIRM |
| https://github.com/IlicMiljan/Secure-Props/issues/20 | x_refsource_MISC |
| https://github.com/IlicMiljan/Secure-Props/pull/21 | x_refsource_MISC |
| https://github.com/IlicMiljan/Secure-Props/commit… | x_refsource_MISC |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| IlicMiljan | Secure-Props |
Affected:
>= 1.2.0, < 1.2.2
|
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CVE-2024-28865 (GCVE-0-2024-28865)
Vulnerability from cvelistv5 – Published: 2024-03-18 21:53 – Updated: 2024-08-21 14:59
VLAI
Title
django-wiki denial of service via regular expression
Summary
django-wiki is a wiki system for Django. Installations of django-wiki prior to version 0.10.1 are vulnerable to maliciously crafted article content that can cause severe use of server CPU through a regular expression loop. Version 0.10.1 fixes this issue. As a workaround, close off access to create and edit articles by anonymous users.
Severity
7.5 (High)
SSVC
Exploitation: none
Automatable: yes
Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
- CWE-1333 - Inefficient Regular Expression Complexity
Assigner
References
2 references
| URL | Tags |
|---|---|
| https://github.com/django-wiki/django-wiki/securi… | x_refsource_CONFIRM |
| https://github.com/django-wiki/django-wiki/commit… | x_refsource_MISC |
Impacted products
2 products
| Vendor | Product | Version | |
|---|---|---|---|
| django-wiki | django-wiki |
Affected:
< 0.10.1
|
|
| django-wiki_project | django-wiki |
Affected:
0 , < 0.10.1
(custom)
cpe:2.3:a:django-wiki_project:django-wiki:*:*:*:*:*:*:*:* |
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CVE-2024-3114 (GCVE-0-2024-3114)
Vulnerability from cvelistv5 – Published: 2024-08-08 10:31 – Updated: 2024-08-30 13:24
VLAI
Title
Uncontrolled Resource Consumption in GitLab
Summary
An issue was discovered in GitLab CE/EE affecting all versions starting from 11.10 prior to 17.0.6, 17.1 prior to 17.1.4, and 17.2 prior to 17.2.2, with the processing logic for parsing invalid commits can lead to a regular expression DoS attack on the server.
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
| URL | Tags |
|---|---|
| https://gitlab.com/gitlab-org/gitlab/-/issues/452547 | issue-trackingpermissions-required |
| https://hackerone.com/reports/2416630 | technical-descriptionexploitpermissions-required |
Impacted products
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CVE-2024-3651 (GCVE-0-2024-3651)
Vulnerability from cvelistv5 – Published: 2024-07-07 17:22 – Updated: 2025-11-04 22:06
VLAI
Title
Denial of Service via Quadratic Complexity in kjd/idna
Summary
A vulnerability was identified in the kjd/idna library, specifically within the `idna.encode()` function, affecting version 3.6. The issue arises from the function's handling of crafted input strings, which can lead to quadratic complexity and consequently, a denial of service condition. This vulnerability is triggered by a crafted input that causes the `idna.encode()` function to process the input with considerable computational load, significantly increasing the processing time in a quadratic manner relative to the input size.
Severity
6.2 (Medium)
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
- CWE-1333 - Inefficient Regular Expression Complexity
Assigner
References
7 references
Impacted products
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CVE-2024-3772 (GCVE-0-2024-3772)
Vulnerability from cvelistv5 – Published: 2024-04-15 01:42 – Updated: 2025-02-13 17:53
VLAI
Title
Regular expression denial of service in Pydantic < 2.4.0
Summary
Regular expression denial of service in Pydanic < 2.4.0, < 1.10.13 allows remote attackers to cause denial of service via a crafted email string.
Severity
5.9 (Medium)
SSVC
Exploitation: poc
Automatable: no
Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
- CWE-1333 - Inefficient Regular Expression Complexity
Assigner
References
Impacted products
3 products
| Vendor | Product | Version | |
|---|---|---|---|
| Pydantic | Pydantic |
Affected:
2.0 , < 2.4.0
(semver)
Affected: 1.0 , < 1.10.13 (semver) |
|
| pydantic_project | pydantic |
Affected:
1.0 , < 1.10.13
(semver)
cpe:2.3:a:pydantic_project:pydantic:1.0:-:*:*:*:*:*:* |
|
| pydantic_project | pydantic |
Affected:
2.0
cpe:2.3:a:pydantic_project:pydantic:2.0:*:*:*:*:*:*:* |
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CVE-2024-39316 (GCVE-0-2024-39316)
Vulnerability from cvelistv5 – Published: 2024-07-02 15:57 – Updated: 2024-08-02 04:19
VLAI
Title
Rack ReDoS Vulnerability in HTTP Accept Headers Parsing
Summary
Rack is a modular Ruby web server interface. Starting in version 3.1.0 and prior to version 3.1.5, Regular Expression Denial of Service (ReDoS) vulnerability exists in the `Rack::Request::Helpers` module when parsing HTTP Accept headers. This vulnerability can be exploited by an attacker sending specially crafted `Accept-Encoding` or `Accept-Language` headers, causing the server to spend excessive time processing the request and leading to a Denial of Service (DoS). The fix for CVE-2024-26146 was not applied to the main branch and thus while the issue was fixed for the Rack v3.0 release series, it was not fixed in the v3.1 release series until v3.1.5. Users of versions on the 3.1 branch should upgrade to version 3.1.5 to receive the fix.
Severity
6.5 (Medium)
SSVC
Exploitation: none
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/rack/rack/security/advisories/… | x_refsource_CONFIRM |
| https://github.com/rack/rack/security/advisories/… | x_refsource_MISC |
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CVE-2024-39317 (GCVE-0-2024-39317)
Vulnerability from cvelistv5 – Published: 2024-07-11 15:23 – Updated: 2024-08-02 04:19
VLAI
Title
Wagtail regular expression denial-of-service via search query parsing
Summary
Wagtail is an open source content management system built on Django. A bug in Wagtail's `parse_query_string` would result in it taking a long time to process suitably crafted inputs. When used to parse sufficiently long strings of characters without a space, `parse_query_string` would take an unexpectedly large amount of time to process, resulting in a denial of service. In an initial Wagtail installation, the vulnerability can be exploited by any Wagtail admin user. It cannot be exploited by end users. If your Wagtail site has a custom search implementation which uses `parse_query_string`, it may be exploitable by other users (e.g. unauthenticated users). Patched versions have been released as Wagtail 5.2.6, 6.0.6 and 6.1.3.
Severity
6.5 (Medium)
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
- CWE-1333 - Inefficient Regular Expression Complexity
Assigner
References
4 references
| URL | Tags |
|---|---|
| https://github.com/wagtail/wagtail/security/advis… | x_refsource_CONFIRM |
| https://github.com/wagtail/wagtail/commit/31b1e85… | x_refsource_MISC |
| https://github.com/wagtail/wagtail/commit/3c94113… | x_refsource_MISC |
| https://github.com/wagtail/wagtail/commit/b783c09… | x_refsource_MISC |
Impacted products
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CVE-2024-4025 (GCVE-0-2024-4025)
Vulnerability from cvelistv5 – Published: 2025-06-20 18:14 – Updated: 2025-06-23 15:22
VLAI
Title
Inefficient Regular Expression Complexity in GitLab
Summary
A Denial of Service (DoS) condition has been discovered in GitLab CE/EE affecting all versions from 7.10 prior before 16.11.5, version 17.0 before 17.0.3, and 17.1 before 17.1.1. It is possible for an attacker to cause a denial of service using a crafted markdown page.
Severity
6.5 (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
| URL | Tags |
|---|---|
| https://gitlab.com/gitlab-org/gitlab/-/issues/457474 | issue-trackingpermissions-required |
| https://hackerone.com/reports/2024974 | technical-descriptionexploitpermissions-required |
Impacted products
Credits
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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.