CWE-1333— Inefficient Regular Expression Complexity (ReDoS)
The product uses a regular expression with a worst-case computational complexity that is inefficient and possibly exponential.— MITRE CWE catalog
608 active CVEs classified under this weakness category. Sourced from NVD, GHSA, and vendor advisories. Full definition on MITRE →
CVEs classified under CWE-1333page 9 of 13
- CVE-2024-12391MEDIUMCVSS 6.5EG 6.52025-03-20
A vulnerability in binary-husky/gpt_academic, as of commit 310122f, allows for a Regular Expression Denial of Service (ReDoS) attack. The function '解析项目源码(手动指定和筛选源码文件类型)' permits the execution of u…
- CVE-2024-12388MEDIUMCVSS 6.5EG 6.52025-03-20
A vulnerability in binary-husky/gpt_academic version 310122f allows for a Regular Expression Denial of Service (ReDoS) attack. The application uses a regular expression to parse user input, which can take polynomial time to match certain c…
- CVE-2024-10955MEDIUMCVSS 6.5EG 6.52025-03-20
A Regular Expression Denial of Service (ReDoS) vulnerability exists in gaizhenbiao/chuanhuchatgpt, as of commit 20b2e02. The server uses the regex pattern `r'<[^>]+>'` to parse user input. In Python's default regex engine, this pattern can…
- CVE-2025-0367MEDIUMCVSS 6.5EG 6.52025-01-30
In versions 3.1.0 and lower of the Splunk Supporting Add-on for Active Directory, also known as SA-ldapsearch, a vulnerable regular expression pattern could lead to a Regular Expression Denial of Service (ReDoS) attack.
- CVE-2024-36751MEDIUMCVSS 6.5EG 6.52025-01-15
An issue in parse-uri v1.0.9 allows attackers to cause a Regular expression Denial of Service (ReDoS) via a crafted URL.
- CVE-2024-10270MEDIUMCVSS 6.5EG 6.52024-11-25
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.
- CVE-2024-2800MEDIUMCVSS 6.5EG 6.52024-08-08
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.
- CVE-2024-39317MEDIUMCVSS 6.5EG 6.52024-07-11
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 characte…
- CVE-2024-39316MEDIUMCVSS 6.5EG 6.52024-07-02
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. T…
- CVE-2024-1493MEDIUMCVSS 6.5EG 6.52024-06-27
An issue was discovered in GitLab CE/EE affecting all versions starting from 9.2 prior to 16.11.5, starting from 17.0 prior to 17.0.3, and starting from 17.1 prior to 17.1.1, with the processing logic for generating link in dependency file…
- CVE-2024-1963MEDIUMCVSS 6.5EG 6.52024-06-12
An issue has been discovered in GitLab CE/EE affecting all versions starting from 8.4 prior to 16.10.7, starting from 16.11 prior to 16.11.4, and starting from 17.0 prior to 17.0.2. A vulnerability in GitLab's Asana integration allowed an …
- CVE-2024-1736MEDIUMCVSS 6.5EG 6.52024-06-12
An issue has been discovered in GitLab CE/EE affecting all versions prior to 16.10.7, starting from 16.11 prior to 16.11.4, and starting from 17.0 prior to 17.0.2. A vulnerability in GitLab's CI/CD pipeline editor could allow for denial of…
- CVE-2024-1495MEDIUMCVSS 6.5EG 6.52024-06-12
An issue has been discovered in GitLab CE/EE affecting all versions starting from 13.1 prior to 16.10.7, starting from 16.11 prior to 16.11.4, and starting from 17.0 prior to 17.0.2. It was possible for an attacker to cause a denial of ser…
- CVE-2023-6688MEDIUMCVSS 6.5EG 6.52024-05-14
An issue has been discovered in GitLab CE/EE affecting all versions starting from 16.11 prior to 16.11.2. A problem with the processing logic for Google Chat Messages integration may lead to a regular expression DoS attack on the server.
- CVE-2023-6682MEDIUMCVSS 6.5EG 6.52024-05-14
An issue has been discovered in GitLab CE/EE affecting all versions starting from 16.9 prior to 16.9.7, starting from 16.10 prior to 16.10.5, and starting from 16.11 prior to 16.11.2. A problem with the processing logic for Discord Integra…
- CVE-2023-6736MEDIUMCVSS 6.5EG 6.52024-02-07
An issue has been discovered in GitLab EE affecting all versions starting from 11.3 before 16.7.6, all versions starting from 16.8 before 16.8.3, all versions starting from 16.9 before 16.9.1. It was possible for an attacker to cause a cli…
- CVE-2023-6159MEDIUMCVSS 6.5EG 6.52024-01-26
An issue has been discovered in GitLab CE/EE affecting all versions from 12.7 prior to 16.6.6, 16.7 prior to 16.7.4, and 16.8 prior to 16.8.1 It was possible for an attacker to trigger a Regular Expression Denial of Service via a `Cargo.to…
- CVE-2023-3210MEDIUMCVSS 6.5EG 6.52023-09-01
An issue has been discovered in GitLab affecting all versions starting from 15.11 before 16.1.5, all versions starting from 16.2 before 16.2.5, all versions starting from 16.3 before 16.3.1. An authenticated user could trigger a denial of …
- CVE-2023-3205MEDIUMCVSS 6.5EG 6.52023-09-01
An issue has been discovered in GitLab affecting all versions starting from 15.11 before 16.1.5, all versions starting from 16.2 before 16.2.5, all versions starting from 16.3 before 16.3.1. An authenticated user could trigger a denial of …
- CVE-2023-0632MEDIUMCVSS 6.5EG 6.52023-08-02
An issue has been discovered in GitLab affecting all versions starting from 15.2 before 16.0.8, all versions starting from 16.1 before 16.1.3, all versions starting from 16.2 before 16.2.2. A Regular Expression Denial of Service was possib…
- CVE-2023-36543MEDIUMCVSS 6.5EG 6.52023-07-12
Apache Airflow, versions before 2.6.3, has a vulnerability where an authenticated user can use crafted input to make the current request hang. It is recommended to upgrade to a version that is not affected
- CVE-2023-2232MEDIUMCVSS 6.5EG 6.52023-06-28
An issue has been discovered in GitLab affecting all versions starting from 15.10 before 16.1, leading to a ReDoS vulnerability in the Jira prefix
- CVE-2023-33950MEDIUMCVSS 6.5EG 6.52023-05-24
Pattern Redirects in Liferay Portal 7.4.3.48 through 7.4.3.76, and Liferay DXP 7.4 update 48 through 76 allows regular expressions that are vulnerable to ReDoS attacks to be used as patterns, which allows remote attackers to consume an exc…
- CVE-2023-25167MEDIUMCVSS 6.5EG 6.52023-02-08
Discourse is an open source discussion platform. In affected versions a malicious user can cause a regular expression denial of service using a carefully crafted git URL. This issue is patched in the latest stable, beta and tests-passed ve…
- CVE-2023-25166MEDIUMCVSS 6.5EG 6.52023-02-08
formula is a math and string formula parser. In versions prior to 3.0.1 crafted user-provided strings to formula's parser might lead to polynomial execution time and a denial of service. Users should upgrade to 3.0.1+. There are no known w…
- CVE-2022-23548MEDIUMCVSS 6.5EG 6.52023-01-05
Discourse is an option source discussion platform. Prior to version 2.8.14 on the `stable` branch and version 2.9.0.beta16 on the `beta` and `tests-passed` branches, parsing posts can be susceptible to regular expression denial of service …
- CVE-2021-46823MEDIUMCVSS 6.5EG 6.52022-06-18
python-ldap before 3.4.0 is vulnerable to a denial of service when ldap.schema is used for untrusted schema definitions, because of a regular expression denial of service (ReDoS) flaw in the LDAP schema parser. By sending crafted regex inp…
- CVE-2022-24729MEDIUMCVSS 6.5EG 6.52022-03-16
CKEditor4 is an open source what-you-see-is-what-you-get HTML editor. CKEditor4 prior to version 4.18.0 contains a vulnerability in the `dialog` plugin. The vulnerability allows abuse of a dialog input validator regular expression, which c…
- CVE-2021-3801MEDIUMCVSS 6.5EG 6.52021-09-15
prism is vulnerable to Inefficient Regular Expression Complexity
- CVE-2021-25292MEDIUMCVSS 6.5EG 6.52021-03-19
An issue was discovered in Pillow before 8.1.1. The PDF parser allows a regular expression DoS (ReDoS) attack via a crafted PDF file because of a catastrophic backtracking regex.
- CVE-2021-26271MEDIUMCVSS 6.5EG 6.52021-01-26
It was possible to execute a ReDoS-type attack inside CKEditor 4 before 4.16 by persuading a victim to paste crafted text into the Styles input of specific dialogs (in the Advanced Tab for Dialogs plugin).
- CVE-2019-16555MEDIUMCVSS 6.5EG 6.52019-12-17
A user-supplied regular expression in Jenkins Build Failure Analyzer Plugin 1.24.1 and earlier was processed in a way that wasn't interruptible, allowing attackers to have Jenkins evaluate a regular expression without the ability to interr…
- CVE-2019-16215MEDIUMCVSS 6.5EG 6.52019-09-18
The Markdown parser in Zulip server before 2.0.5 used a regular expression vulnerable to exponential backtracking. A user who is logged into the server could send a crafted message causing the server to spend an effectively arbitrary amoun…
- CVE-2017-16021MEDIUMCVSS 6.5EG 6.52018-06-04
uri-js is a module that tries to fully implement RFC 3986. One of these features is validating whether or not a supplied URL is valid or not. To do this, uri-js uses a regular expression, This regular expression is vulnerable to redos. Thi…
- CVE-2026-109295MEDIUMCVSS 4.3EG 6.52026-10-12
Open WebUI from 0.11.0 before 0.11.4 contains a regular expression denial of service vulnerability that allows authenticated users to stall server workers via file search patterns. Attackers can instruct the model to call grep_knowledge_fi…
- CVE-2021-39940MEDIUMCVSS 4.3EG 6.52021-12-13
An issue has been discovered in GitLab CE/EE affecting all versions starting from 13.2 before 14.3.6, all versions starting from 14.4 before 14.4.4, all versions starting from 14.5 before 14.5.2. GitLab Maven Package registry is vulnerable…
- CVE-2021-39933MEDIUMCVSS 4.3EG 6.52021-12-13
An issue has been discovered in GitLab CE/EE affecting all versions starting from 12.10 before 14.3.6, all versions starting from 14.4 before 14.4.4, all versions starting from 14.5 before 14.5.2. A regular expression used for handling use…
- CVE-2026-111997MEDIUMCVSS 6.3EG 6.32026-10-18
ip-address before 10.7.4 allows a denial of service (CPU consumption from quadratic complexity, and application stall) via many % characters in input reaching a function call that uses the Address6 constructor.
- CVE-2025-48058MEDIUMCVSS 6.3EG 6.32025-06-20
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.…
- CVE-2025-27789MEDIUMCVSS 6.2EG 6.22025-03-11
Babel is a compiler for writing next generation JavaScript. When using versions of Babel prior to 7.26.10 and 8.0.0-alpha.17 to compile regular expression named capturing groups, Babel will generate a polyfill for the `.replace` method tha…
- CVE-2026-62672MEDIUMCVSS 6.0EG 6.02026-08-19
Grav is a file-based Web platform. Prior to 2.0.4, Grav allowlists the regex_replace filter and function in system/config/security.yaml, and GravExtension::regexReplace() passes an editor-controlled pattern directly to preg_replace(). When…
- CVE-2025-26042MEDIUMCVSS 6.0EG 6.02025-03-17
Uptime Kuma >== 1.23.0 has a ReDoS vulnerability, specifically when an administrator creates a notification through the web service. If a string is provided it triggers catastrophic backtracking in the regular expression, leading to a ReDo…
- CVE-2026-100267MEDIUMCVSS 5.9EG 5.92026-09-30
In JetBrains YouTrack before 2026.2.19197 reDoS attack was possible via mailbox regex mail-rule filters
- CVE-2026-80206MEDIUMCVSS 5.9EG 5.92026-08-26
NLTK before 3.10.3 contains a regular expression denial of service (ReDoS) vulnerability in the tgrep module. The _tgrep_node_action function compiles user-supplied regular expressions embedded in /regex/ pattern nodes and executes them vi…
- CVE-2026-4923MEDIUMCVSS 5.9EG 5.92026-03-26
Impact: When using multiple wildcards, combined with at least one parameter, a regular expression can be generated that is vulnerable to ReDoS. This backtracking vulnerability requires the second wildcard to be somewhere other than the en…
- CVE-2026-29076MEDIUMCVSS 5.9EG 5.92026-03-07
cpp-httplib is a C++11 single-file header-only cross platform HTTP/HTTPS library. Prior to version 0.37.0, cpp-httplib uses std::regex (libstdc++) to parse RFC 5987 encoded filename* values in multipart Content-Disposition headers. The reg…
- CVE-2023-7279MEDIUMCVSS 5.9EG 5.92024-09-02
A vulnerability has been found in Secure Systems Engineering Connaisseur up to 3.3.0 and classified as problematic. This vulnerability affects unknown code of the file connaisseur/res/targets_schema.json of the component Delegation Name Ha…
- CVE-2024-3772MEDIUMCVSS 5.9EG 5.92024-04-15
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.
- CVE-2022-42966MEDIUMCVSS 5.9EG 5.92022-11-09
An exponential ReDoS (Regular Expression Denial of Service) can be triggered in the cleo PyPI package, when an attacker is able to supply arbitrary input to the Table.set_rows method
- CVE-2022-42964MEDIUMCVSS 5.9EG 5.92022-11-09
An exponential ReDoS (Regular Expression Denial of Service) can be triggered in the pymatgen PyPI package, when an attacker is able to supply arbitrary input to the GaussianInput.from_string method
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