Common Weakness Enumeration
CWE-1333
AllowedInefficient Regular Expression Complexity
Abstraction: Base · Status: Draft
The product uses a regular expression with a worst-case computational complexity that is inefficient and possibly exponential.
824 vulnerabilities reference this CWE, most recent first.
CVE-2025-8262 (GCVE-0-2025-8262)
Vulnerability from cvelistv5 – Published: 2025-07-28 07:02 – Updated: 2025-07-28 17:16
VLAI
EPSS
VEX
Title
yarnpkg Yarn hosted-git-resolver.js explodeHostedGitFragment redos
Summary
A vulnerability was found in yarnpkg Yarn up to 1.22.22. It has been classified as problematic. Affected is the function explodeHostedGitFragment of the file src/resolvers/exotics/hosted-git-resolver.js. The manipulation leads to inefficient regular expression complexity. It is possible to launch the attack remotely. The patch is identified as 97731871e674bf93bcbf29e9d3258da8685f3076. It is recommended to apply a patch to fix this issue.
Severity
SSVC
Exploitation: poc
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2025-07-28 17:13 UTC
Assigner
References
5 references
| URL | Tags |
|---|---|
| https://vuldb.com/?id.317850 | vdb-entrytechnical-description |
| https://vuldb.com/?ctiid.317850 | signaturepermissions-required |
| https://vuldb.com/?submit.617393 | third-party-advisory |
| https://github.com/yarnpkg/yarn/pull/9199 | issue-tracking |
| https://github.com/yarnpkg/yarn/pull/9199/commits… | issue-trackingpatch |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| yarnpkg | Yarn |
Affected:
1.22.0
Affected: 1.22.1 Affected: 1.22.2 Affected: 1.22.3 Affected: 1.22.4 Affected: 1.22.5 Affected: 1.22.6 Affected: 1.22.7 Affected: 1.22.8 Affected: 1.22.9 Affected: 1.22.10 Affected: 1.22.11 Affected: 1.22.12 Affected: 1.22.13 Affected: 1.22.14 Affected: 1.22.15 Affected: 1.22.16 Affected: 1.22.17 Affected: 1.22.18 Affected: 1.22.19 Affected: 1.22.20 Affected: 1.22.21 Affected: 1.22.22 |
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CVE-2025-7579 (GCVE-0-2025-7579)
Vulnerability from cvelistv5 – Published: 2025-07-14 06:14 – Updated: 2025-07-14 13:08
VLAI
EPSS
VEX
Title
chinese-poetry server.js redos
Summary
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 be initiated remotely. The exploit has been disclosed to the public and may be used.
Severity
SSVC
Exploitation: poc
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2025-07-14 13:05 UTC
Assigner
References
5 references
| URL | Tags |
|---|---|
| https://vuldb.com/?id.316277 | vdb-entry |
| https://vuldb.com/?ctiid.316277 | signaturepermissions-required |
| https://vuldb.com/?submit.609704 | third-party-advisory |
| https://github.com/chinese-poetry/chinese-poetry/… | issue-tracking |
| https://github.com/chinese-poetry/chinese-poetry/… | exploitissue-tracking |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| n/a | chinese-poetry |
Affected:
0.1
|
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CVE-2025-7074 (GCVE-0-2025-7074)
Vulnerability from cvelistv5 – Published: 2025-07-05 09:02 – Updated: 2025-07-07 16:06
VLAI
EPSS
VEX
Title
vercel hyper rimraf-standalone.js ignoreMap redos
Summary
A vulnerability classified as problematic has been found in vercel hyper up to 3.4.1. This affects the function expand/braceExpand/ignoreMap of the file hyper/bin/rimraf-standalone.js. The manipulation leads to inefficient regular expression complexity. It is possible to initiate the attack remotely. The exploit has been disclosed to the public and may be used.
Severity
SSVC
Exploitation: poc
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2025-07-07 16:06 UTC
Assigner
References
4 references
| URL | Tags |
|---|---|
| https://vuldb.com/?id.314973 | vdb-entrytechnical-description |
| https://vuldb.com/?ctiid.314973 | signaturepermissions-required |
| https://vuldb.com/?submit.602353 | third-party-advisory |
| https://github.com/vercel/hyper/issues/8098 | exploitissue-tracking |
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CVE-2025-6998 (GCVE-0-2025-6998)
Vulnerability from cvelistv5 – Published: 2025-07-24 19:39 – Updated: 2025-07-25 13:17
VLAI
EPSS
VEX
Title
Calibre Web 0.6.24 & Autocaliweb 0.7.0 - ReDoS
Summary
ReDoS in strip_whitespaces() function in cps/string_helper.py in Calibre Web and Autocaliweb allows unauthenticated remote attackers to cause denial of service via specially crafted username parameter that triggers catastrophic backtracking during login. This issue affects Calibre Web: 0.6.24 (Nicolette); Autocaliweb: from 0.7.0 before 0.7.1.
Severity
SSVC
Exploitation: poc
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2025-07-24 19:50 UTC
CWE
- CWE-1333 - Inefficient Regular Expression Complexity
Assigner
References
3 references
| URL | Tags |
|---|---|
| https://fluidattacks.com/advisories/megadeth | third-party-advisory |
| https://github.com/janeczku/calibre-web | product |
| https://github.com/gelbphoenix/autocaliweb | product |
Impacted products
2 products
| Vendor | Product | Version | |
|---|---|---|---|
| Calibre Web | Calibre Web |
Affected:
0.6.24
(custom)
cpe:2.3:a:calibre_web:calibre_web:0.6.24:*:linux:*:*:*:*:* |
|
| Autocaliweb | Autocaliweb |
Affected:
0.7.0 , < 0.7.1
(custom)
cpe:2.3:a:autocaliweb:autocaliweb:*:*:linux:*:*:*:*:* |
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CVE-2025-6638 (GCVE-0-2025-6638)
Vulnerability from cvelistv5 – Published: 2025-09-12 10:46 – Updated: 2025-09-12 11:52
VLAI
EPSS
VEX
Title
Regular Expression Denial of Service (ReDoS) in huggingface/transformers
Summary
A Regular Expression Denial of Service (ReDoS) vulnerability was discovered in the Hugging Face Transformers library, specifically affecting the MarianTokenizer's `remove_language_code()` method. This vulnerability is present in version 4.52.4 and has been fixed in version 4.53.0. The issue arises from inefficient regex processing, which can be exploited by crafted input strings containing malformed language code patterns, leading to excessive CPU consumption and potential denial of service.
Severity
5.3 (Medium)
SSVC
Exploitation: poc
Automatable: yes
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2025-09-12 11:52 UTC
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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CVE-2025-6493 (GCVE-0-2025-6493)
Vulnerability from cvelistv5 – Published: 2025-06-22 22:00 – Updated: 2025-09-29 13:48
VLAI
EPSS
VEX
Title
CodeMirror Markdown Mode markdown.js redos
Summary
A weakness has been identified in CodeMirror up to 5.65.20. Affected is an unknown function of the file mode/markdown/markdown.js of the component Markdown Mode. This manipulation causes inefficient regular expression complexity. It is possible to initiate the attack remotely. The exploit has been made available to the public and could be exploited. Upgrading to version 6.0 is able to address this issue. You should upgrade the affected component. Not all code samples mentioned in the GitHub issue can be found. The repository mentions, that "CodeMirror 6 exists, and is [...] much more actively maintained."
Severity
SSVC
Exploitation: poc
Automatable: yes
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2025-06-23 15:43 UTC
Assigner
References
4 references
| URL | Tags |
|---|---|
| https://vuldb.com/?id.313610 | vdb-entrytechnical-description |
| https://vuldb.com/?ctiid.313610 | signaturepermissions-required |
| https://vuldb.com/?submit.598875 | third-party-advisory |
| https://github.com/codemirror/codemirror5/issues/7128 | exploitissue-tracking |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| n/a | CodeMirror |
Affected:
5.65.0
Affected: 5.65.1 Affected: 5.65.2 Affected: 5.65.3 Affected: 5.65.4 Affected: 5.65.5 Affected: 5.65.6 Affected: 5.65.7 Affected: 5.65.8 Affected: 5.65.9 Affected: 5.65.10 Affected: 5.65.11 Affected: 5.65.12 Affected: 5.65.13 Affected: 5.65.14 Affected: 5.65.15 Affected: 5.65.16 Affected: 5.65.17 Affected: 5.65.18 Affected: 5.65.19 Affected: 5.65.20 Unaffected: 6.0 |
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CVE-2025-6492 (GCVE-0-2025-6492)
Vulnerability from cvelistv5 – Published: 2025-06-22 20:00 – Updated: 2025-06-23 16:33
VLAI
EPSS
VEX
Title
MarkText index.js getRecommendTitleFromMarkdownString redos
Summary
A vulnerability has been found in MarkText up to 0.17.1 and classified as problematic. Affected by this vulnerability is the function getRecommendTitleFromMarkdownString of the file marktext/src/main/utils/index.js. The manipulation leads to inefficient regular expression complexity. The attack can be launched remotely. The exploit has been disclosed to the public and may be used.
Severity
SSVC
Exploitation: poc
Automatable: yes
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2025-06-23 16:33 UTC
Assigner
References
5 references
| URL | Tags |
|---|---|
| https://vuldb.com/?id.313609 | vdb-entrytechnical-description |
| https://vuldb.com/?ctiid.313609 | signaturepermissions-required |
| https://vuldb.com/?submit.598208 | third-party-advisory |
| https://github.com/marktext/marktext/pull/3952 | issue-tracking |
| https://github.com/mmmsssttt404/marktext/blob/c59… | exploit |
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CVE-2025-6069 (GCVE-0-2025-6069)
Vulnerability from cvelistv5 – Published: 2025-06-17 13:39 – Updated: 2026-07-31 14:01
VLAI
EPSS
VEX
Title
HTMLParser quadratic complexity when processing malformed inputs
Summary
The html.parser.HTMLParser class had worse-case quadratic complexity when processing certain crafted malformed inputs potentially leading to amplified denial-of-service.
Severity
4.3 (Medium)
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2025-06-17 13:58 UTC
CWE
- CWE-1333 - Inefficient Regular Expression Complexity
Assigner
References
10 references
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| Python Software Foundation | CPython |
Affected:
0 , < 3.9.24
(python)
Affected: 3.10.0 , < 3.10.19 (python) Affected: 3.11.0 , < 3.11.14 (python) Affected: 3.12.0 , < 3.12.12 (python) Affected: 3.13.0 , < 3.13.6 (python) Affected: 3.14.0a1 , < 3.14.0b3 (python) |
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CVE-2025-6051 (GCVE-0-2025-6051)
Vulnerability from cvelistv5 – Published: 2025-09-14 17:03 – Updated: 2025-09-15 15:59
VLAI
EPSS
VEX
Title
Regular Expression Denial of Service (ReDoS) in huggingface/transformers
Summary
A Regular Expression Denial of Service (ReDoS) vulnerability was discovered in the Hugging Face Transformers library, specifically within the `normalize_numbers()` method of the `EnglishNormalizer` class. This vulnerability affects versions up to 4.52.4 and is fixed in version 4.53.0. The issue arises from the method's handling of numeric strings, which can be exploited using crafted input strings containing long sequences of digits, leading to excessive CPU consumption. This vulnerability impacts text-to-speech and number normalization tasks, potentially causing service disruption, resource exhaustion, and API vulnerabilities.
Severity
5.3 (Medium)
SSVC
Exploitation: poc
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2025-09-15 15:59 UTC
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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CVE-2025-5897 (GCVE-0-2025-5897)
Vulnerability from cvelistv5 – Published: 2025-06-09 21:00 – Updated: 2025-06-10 15:29
VLAI
EPSS
VEX
Title
vuejs vue-cli Markdown Code HtmlPwaPlugin.js HtmlPwaPlugin redos
Summary
A vulnerability was found in vuejs vue-cli up to 5.0.8. It has been rated as problematic. This issue affects the function HtmlPwaPlugin of the file packages/@vue/cli-plugin-pwa/lib/HtmlPwaPlugin.js of the component Markdown Code Handler. The manipulation leads to inefficient regular expression complexity. The attack may be initiated remotely.
Severity
SSVC
Exploitation: poc
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2025-06-10 14:22 UTC
Assigner
References
4 references
| URL | Tags |
|---|---|
| https://vuldb.com/?id.311669 | vdb-entrytechnical-description |
| https://vuldb.com/?ctiid.311669 | signaturepermissions-required |
| https://vuldb.com/?submit.585798 | third-party-advisory |
| https://github.com/vuejs/vue-cli/pull/7478 | issue-tracking |
Impacted products
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"name": "VDB-311669 | CTI Indicators (IOB, IOC, TTP, IOA)",
"tags": [
"signature",
"permissions-required"
],
"url": "https://vuldb.com/?ctiid.311669"
},
{
"name": "Submit #585798 | vue 3.5.15 Inefficient Regular Expression Complexity",
"tags": [
"third-party-advisory"
],
"url": "https://vuldb.com/?submit.585798"
},
{
"tags": [
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"url": "https://github.com/vuejs/vue-cli/pull/7478"
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],
"timeline": [
{
"lang": "en",
"time": "2025-06-09T00:00:00.000Z",
"value": "Advisory disclosed"
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{
"lang": "en",
"time": "2025-06-09T02:00:00.000Z",
"value": "VulDB entry created"
},
{
"lang": "en",
"time": "2025-06-09T09:07:21.000Z",
"value": "VulDB entry last update"
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],
"title": "vuejs vue-cli Markdown Code HtmlPwaPlugin.js HtmlPwaPlugin redos"
}
},
"cveMetadata": {
"assignerOrgId": "1af790b2-7ee1-4545-860a-a788eba489b5",
"assignerShortName": "VulDB",
"cveId": "CVE-2025-5897",
"datePublished": "2025-06-09T21:00:17.023Z",
"dateReserved": "2025-06-09T07:02:15.578Z",
"dateUpdated": "2025-06-10T15:29:58.751Z",
"state": "PUBLISHED"
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Mitigation
Architecture and Design
Use regular expressions that do not support backtracking, e.g. by removing nested quantifiers.
Mitigation
System Configuration
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
Implementation
Do not use regular expressions with untrusted input. If regular expressions must be used, avoid using backtracking in the expression.
Mitigation
Implementation
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.