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
626 active CVEs classified under this weakness category. Sourced from NVD, GHSA, and vendor advisories. Full definition on MITRE →
CVEs classified under CWE-1333page 12 of 13
- CVE-2023-26117MEDIUMCVSS 5.3EG 5.32023-03-30
Versions of the package angular from 1.0.0 are vulnerable to Regular Expression Denial of Service (ReDoS) via the $resource service due to the usage of an insecure regular expression. Exploiting this vulnerability is possible by a large ca…
- CVE-2023-26116MEDIUMCVSS 5.3EG 5.32023-03-30
Versions of the package angular from 1.2.21 are vulnerable to Regular Expression Denial of Service (ReDoS) via the angular.copy() utility function due to the usage of an insecure regular expression. Exploiting this vulnerability is possibl…
- CVE-2023-26103MEDIUMCVSS 5.3EG 5.32023-02-25
Versions of the package deno before 1.31.0 are vulnerable to Regular Expression Denial of Service (ReDoS) due to the upgradeWebSocket function, which contains regexes in the form of /s*,s*/, used for splitting the Connection/Upgrade header…
- CVE-2022-25901MEDIUMCVSS 5.3EG 5.32023-01-18
Versions of the package cookiejar before 2.1.4 are vulnerable to Regular Expression Denial of Service (ReDoS) via the Cookie.parse function, which uses an insecure regular expression.
- CVE-2017-20162MEDIUMCVSS 5.3EG 5.32023-01-05
A vulnerability, which was classified as problematic, has been found in vercel ms up to 1.x. This issue affects the function parse of the file index.js. The manipulation of the argument str leads to inefficient regular expression complexit…
- CVE-2022-42969MEDIUMCVSS 5.3EG 5.32022-10-16
The py library through 1.11.0 for Python allows remote attackers to conduct a ReDoS (Regular expression Denial of Service) attack via a Subversion repository with crafted info data, because the InfoSvnCommand argument is mishandled. Note: …
- CVE-2022-31110MEDIUMCVSS 5.3EG 5.32022-06-29
RSSHub is an open source, extensible RSS feed generator. In commits prior to 5c4177441417 passing some special values to the `filter` and `filterout` parameters can cause an abnormally high CPU. This results in an impact on the performance…
- CVE-2022-21195MEDIUMCVSS 5.3EG 5.32022-05-20
All versions of package url-regex are vulnerable to Regular Expression Denial of Service (ReDoS) which can cause the CPU usage to crash.
- CVE-2022-25844MEDIUMCVSS 5.3EG 5.32022-05-01
The package angular after 1.7.0 are vulnerable to Regular Expression Denial of Service (ReDoS) by providing a custom locale rule that makes it possible to assign the parameter in posPre: ' '.repeat() of NUMBER_FORMATS.PATTERNS[1].posPre wi…
- CVE-2022-21670MEDIUMCVSS 5.3EG 5.32022-01-10
markdown-it is a Markdown parser. Prior to version 1.3.2, special patterns with length greater than 50 thousand characterss could slow down the parser significantly. Users should upgrade to version 12.3.2 to receive a patch. There are no k…
- CVE-2021-43843MEDIUMCVSS 5.3EG 5.32021-12-20
jsx-slack is a package for building JSON objects for Slack block kit surfaces from JSX. The maintainers found the patch for CVE-2021-43838 in jsx-slack v4.5.1 is insufficient tfor protection from a Regular Expression Denial of Service (ReD…
- CVE-2021-43838MEDIUMCVSS 5.3EG 5.32021-12-17
jsx-slack is a library for building JSON objects for Slack Block Kit surfaces from JSX. In versions prior to 4.5.1 users are vulnerable to a regular expression denial-of-service (ReDoS) attack. If attacker can put a lot of JSX elements int…
- CVE-2021-23364MEDIUMCVSS 5.3EG 5.32021-04-28
The package browserslist from 4.0.0 and before 4.16.5 are vulnerable to Regular Expression Denial of Service (ReDoS) during parsing of queries.
- CVE-2021-23382MEDIUMCVSS 5.3EG 5.32021-04-26
The package postcss before 8.2.13 are vulnerable to Regular Expression Denial of Service (ReDoS) via getAnnotationURL() and loadAnnotation() in lib/previous-map.js. The vulnerable regexes are caused mainly by the sub-pattern \/\*\s* source…
- CVE-2021-23362MEDIUMCVSS 5.3EG 5.32021-03-23
The package hosted-git-info before 3.0.8 are vulnerable to Regular Expression Denial of Service (ReDoS) via regular expression shortcutMatch in the fromUrl function in index.js. The affected regular expression exhibits polynomial worst-cas…
- CVE-2020-28500MEDIUMCVSS 5.3EG 5.32021-02-15
Lodash versions prior to 4.17.21 are vulnerable to Regular Expression Denial of Service (ReDoS) via the toNumber, trim and trimEnd functions.
- CVE-2016-1000232MEDIUMCVSS 5.3EG 5.32018-09-05
NodeJS Tough-Cookie version 2.2.2 contains a Regular Expression Parsing vulnerability in HTTP request Cookie Header parsing that can result in Denial of Service. This attack appear to be exploitable via Custom HTTP header passed by client.…
- CVE-2022-4131MEDIUMCVSS 4.3EG 5.32023-01-12
An issue has been discovered in GitLab CE/EE affecting all versions starting from 10.8 before 15.5.7, all versions starting from 15.6 before 15.6.4, all versions starting from 15.7 before 15.7.2. An attacker may cause Denial of Service on …
- CVE-2022-3514MEDIUMCVSS 4.3EG 5.32023-01-12
An issue has been discovered in GitLab CE/EE affecting all versions starting from 6.6 before 15.5.7, all versions starting from 15.6 before 15.6.4, all versions starting from 15.7 before 15.7.2. An attacker may cause Denial of Service on a…
- CVE-2022-1954MEDIUMCVSS 4.3EG 5.32022-07-01
A Regular Expression Denial of Service vulnerability in GitLab CE/EE affecting all versions from 1.0.2 prior to 14.10.5, 15.0 prior to 15.0.4, and 15.1 prior to 15.1.1 allows an attacker to make a GitLab instance inaccessible via specially…
- CVE-2022-34428MEDIUMCVSS 5.0EG 5.02022-09-30
Dell Hybrid Client prior to version 1.8 contains a Regular Expression Denial of Service Vulnerability in the UI. An adversary with WMS group admin access could potentially exploit this vulnerability, leading to temporary denial-of-service.
- CVE-2009-1190MEDIUMCVSS v2 5.0EG 5.02009-04-27
Algorithmic complexity vulnerability in the java.util.regex.Pattern.compile method in Sun Java Development Kit (JDK) before 1.6, when used with spring.jar in SpringSource Spring Framework 1.1.0 through 2.5.6 and 3.0.0.M1 through 3.0.0.M2 a…
- CVE-2026-110594MEDIUMCVSS 4.9EG 4.92026-10-14
BottleCRM 0.43 through 1.14.5 contains a regular expression denial of service vulnerability that allows authenticated organization administrators to block web workers via unbounded routing rule regex patterns. Attackers can create a routin…
- CVE-2026-105646MEDIUMCVSS 4.9EG 4.92026-10-05
Ghost is a Node.js content management system. From 4.0.0 until 6.67.0, a crafted content import file could cause excessive CPU usage, making the Ghost server unresponsive. Exploiting this requires Administrator access. This issue is fixed …
- CVE-2026-105645MEDIUMCVSS 4.9EG 4.92026-10-05
Ghost is a Node.js content management system. From 5.37.0 until 6.67.0, a crafted request to the external media inliner could cause excessive CPU usage, making the Ghost server unresponsive. Exploiting this requires Administrator access. T…
- CVE-2026-102270MEDIUMCVSS 4.9EG 4.92026-09-28
PyJWT is a Python implementation of JSON Web Token standards. Prior to 2.14.0, PyJWT is_pem_format is affected because lazy PEM regular expression backtracks extensively. This occurs when a certificate-like input contains repeated BEGIN ma…
- CVE-2026-70656MEDIUMCVSS 4.9EG 4.92026-08-21
Checkmate is an open-source, self-hosted tool designed to track and monitor server hardware, uptime, response times, and incidents in real-time with beautiful visualizations. From 3.5.1 until 3.9.2, an authenticated admin or superadmin can…
- CVE-2026-22809MEDIUMCVSS 4.4EG 4.42026-01-13
tarteaucitron.js is a compliant and accessible cookie banner. Prior to 1.29.0, a Regular Expression Denial of Service (ReDoS) vulnerability was identified in tarteaucitron.js in the handling of the issuu_id parameter. This vulnerability is…
- CVE-2026-125063MEDIUMCVSS 4.3EG 4.32026-11-09
A flaw was found in the rrule validation of schedules in automation controller. Several non-anchored regular expressions with lazy wildcard prefixes are applied to the user-supplied rrule value; when the expected DTSTART/RRULE tokens are a…
- CVE-2026-120217MEDIUMCVSS 4.3EG 4.32026-11-01
A vulnerability was detected in Delgan loguru 0.7.3. The affected element is the function AnsiParser.feed of the file loguru/_colorizer.py of the component ANSI Color-Markup Parser. Performing a manipulation results in inefficient regular …
- CVE-2026-106454MEDIUMCVSS 4.3EG 4.32026-10-06
Twisted is an event-based framework for internet applications, supporting Python 3.6+. In 25.5.0 and earlier, wildcardToRegexp() in twisted/mail/imap4.py translates the IMAP asterisk and percent wildcards but passes all other characters fr…
- CVE-2026-102408MEDIUMCVSS 4.3EG 4.32026-10-06
Inefficient Regular Expression Complexity (CWE-1333) in Elasticsearch can lead to denial of service via Regular Expression Exponential Blowup (CAPEC-492). The ES|QL CHUNK function's recursive chunking strategy accepts a list of user-suppli…
- CVE-2026-77082MEDIUMCVSS 4.3EG 4.32026-08-20
n8n before 1.123.69, 2.x before 2.33.4, and 2.34.x before 2.34.1 contains a regular expression denial of service (ReDoS) vulnerability in the Filter and Switch nodes, which compile user-supplied regex patterns with new RegExp() and execute…
- CVE-2026-72912MEDIUMCVSS 4.3EG 4.32026-08-10
CyberChef is a web app for encryption, encoding, compression, and data analysis. Prior to 11.3.0, CyberChef's pretty-recipe parser in src/core/Utils.mjs can exhaust client-side CPU when a malformed #recipe= URL fragment containing a large …
- CVE-2026-10692MEDIUMCVSS 4.3EG 4.32026-06-02
A weakness has been identified in johnhuang316 code-index-mcp up to 2.14.0. Affected is the function is_safe_regex_pattern of the component search_code_advanced. Executing a manipulation of the argument regex can lead to inefficient regula…
- CVE-2026-10691MEDIUMCVSS 4.3EG 4.32026-06-02
A security flaw has been discovered in wonderwhy-er DesktopCommanderMCP up to 0.2.38. This impacts an unknown function of the file src/search-manager.ts of the component start_search. Performing a manipulation of the argument SearchResult[…
- CVE-2026-10291MEDIUMCVSS 4.3EG 4.32026-06-01
A security vulnerability has been detected in Enderfga claw-orchestrator up to 3.7.0. The impacted element is the function validateRegex of the file claw-orchestrator/src/embedded-server.ts of the component Session Grep Endpoint. The manip…
- CVE-2025-4690MEDIUMCVSS 4.3EG 4.32025-08-19
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, t…
- CVE-2025-7579MEDIUMCVSS 4.3EG 4.32025-07-14
A vulnerability was found in chinese-poetry 0.1. It has been rated as problematic. This issue affects some unknown processing of the file rank/server.js. The manipulation leads to inefficient regular expression complexity. The attack may b…
- CVE-2025-43880MEDIUMCVSS 4.3EG 4.32025-06-25
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.
- CVE-2025-6069MEDIUMCVSS 4.3EG 4.32025-06-17
The html.parser.HTMLParser class had worse-case quadratic complexity when processing certain crafted malformed inputs potentially leading to amplified denial-of-service.
- CVE-2025-5890MEDIUMCVSS 4.3EG 4.32025-06-09
A vulnerability classified as problematic has been found in actions toolkit 0.5.0. This affects the function globEscape of the file toolkit/packages/glob/src/internal-pattern.ts of the component glob. The manipulation leads to inefficient …
- CVE-2025-3986MEDIUMCVSS 4.3EG 4.32025-04-27
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\…
- CVE-2024-54157MEDIUMCVSS 4.3EG 4.32024-12-04
In JetBrains YouTrack before 2024.3.52635 potential ReDoS was possible due to vulnerable RegExp in Ruby syntax detector
- CVE-2020-36830MEDIUMCVSS 4.3EG 4.32024-09-02
A vulnerability was found in nescalante urlregex up to 0.5.0 and classified as problematic. This issue affects some unknown processing of the file index.js of the component Backtracking. The manipulation leads to inefficient regular expres…
- CVE-2024-3114MEDIUMCVSS 4.3EG 4.32024-08-08
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 …
- CVE-2023-6502MEDIUMCVSS 4.3EG 4.32024-05-23
A Denial of Service (DoS) condition has been discovered in GitLab CE/EE affecting all versions before 16.10.6, version 16.11 before 16.11.3, and 17.0 before 17.0.1. It is possible for an attacker to cause a denial of service using a crafte…
- CVE-2023-6678MEDIUMCVSS 4.3EG 4.32024-04-12
An issue has been discovered in GitLab EE affecting all versions before 16.8.6, all versions starting from 16.9 before 16.9.4, all versions starting from 16.10 before 16.10.2. It was possible for an attacker to cause a denial of service u…
- CVE-2023-6489MEDIUMCVSS 4.3EG 4.32024-04-12
A denial of service vulnerability was identified in GitLab CE/EE, versions 16.7.7 prior to 16.8.6, 16.9 prior to 16.9.4 and 16.10 prior to 16.10.2 which allows an attacker to spike the GitLab instance resources usage resulting in service d…
- CVE-2023-3909MEDIUMCVSS 4.3EG 4.32023-11-06
An issue has been discovered in GitLab CE/EE affecting all versions starting from 12.3 before 16.3.6, all versions starting from 16.4 before 16.4.2, all versions starting from 16.5 before 16.5.1. A Regular Expression Denial of Service was …
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