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.
724 vulnerabilities reference this CWE, most recent first.
CVE-2022-42966 (GCVE-0-2022-42966)
Vulnerability from cvelistv5 – Published: 2022-11-09 00:00 – Updated: 2025-05-01 19:18
VLAI
EPSS
VEX
Title
Exponential ReDoS in cleo leads to denial of service
Summary
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
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
1 reference
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CVE-2022-42965 (GCVE-0-2022-42965)
Vulnerability from cvelistv5 – Published: 2022-11-09 00:00 – Updated: 2025-05-01 19:19
VLAI
EPSS
VEX
Title
Exponential ReDoS in snowflake-connector-python leads to denial of service
Summary
An exponential ReDoS (Regular Expression Denial of Service) can be triggered in the snowflake-connector-python PyPI package, when an attacker is able to supply arbitrary input to the undocumented get_file_transfer_type method
Severity
SSVC
Exploitation: poc
Automatable: no
Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
- CWE-1333 - Inefficient Regular Expression Complexity
Assigner
References
1 reference
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| snowflake-connector-python | snowflake-connector-python |
Affected:
unspecified , < 2.8.2
(custom)
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CVE-2022-42964 (GCVE-0-2022-42964)
Vulnerability from cvelistv5 – Published: 2022-11-09 00:00 – Updated: 2025-05-01 19:19
VLAI
EPSS
VEX
Title
Exponential ReDoS in pymatgen leads to denial of service
Summary
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
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
1 reference
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CVE-2022-36064 (GCVE-0-2022-36064)
Vulnerability from cvelistv5 – Published: 2022-09-06 20:55 – Updated: 2025-04-22 17:24
VLAI
EPSS
VEX
Title
Shescape Inefficient Regular Expression Complexity vulnerability
Summary
Shescape is a shell escape package for JavaScript. An Inefficient Regular Expression Complexity vulnerability impacts users that use Shescape to escape arguments for the Unix shells `Bash` and `Dash`, or any not-officially-supported Unix shell; and/or using the `escape` or `escapeAll` functions with the `interpolation` option set to `true`. An attacker can cause polynomial backtracking or quadratic runtime in terms of the input string length due to two Regular Expressions in Shescape that are vulnerable to Regular Expression Denial of Service (ReDoS). This bug has been patched in v1.5.10. For `Dash` only, this bug has been patched since v1.5.9. As a workaround, a maximum length can be enforced on input strings to Shescape to reduce the impact of the vulnerability. It is not recommended to try and detect vulnerable input strings, as the logic for this may end up being vulnerable to ReDoS itself.
Severity
5.9 (Medium)
SSVC
Exploitation: poc
Automatable: no
Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
Assigner
References
3 references
| URL | Tags |
|---|---|
| https://github.com/ericcornelissen/shescape/secur… | x_refsource_CONFIRM |
| https://github.com/ericcornelissen/shescape/pull/373 | x_refsource_MISC |
| https://github.com/ericcornelissen/shescape/relea… | x_refsource_MISC |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| ericcornelissen | shescape |
Affected:
>= 1.5.1, < 1.5.10
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CVE-2022-36034 (GCVE-0-2022-36034)
Vulnerability from cvelistv5 – Published: 2022-08-29 16:50 – Updated: 2025-04-23 17:47
VLAI
EPSS
VEX
Title
Possible Regular Expression Denial of Service (ReDoS) used on uncontrolled data in nitrado.js
Summary
nitrado.js is a type safe wrapper for the Nitrado API. Possible ReDoS with lib input of `{{` and with many repetitions of `{{|`. This issue has been patched in all versions above `0.2.5`. There are currently no known workarounds.
Severity
7.5 (High)
SSVC
Exploitation: none
Automatable: yes
Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
Assigner
References
2 references
| URL | Tags |
|---|---|
| https://github.com/cainthebest/nitrado.js/securit… | x_refsource_CONFIRM |
| https://github.com/cainthebest/nitrado.js/blob/v0… | x_refsource_MISC |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| cainthebest | nitrado.js |
Affected:
< 0.2.5
|
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CVE-2022-34428 (GCVE-0-2022-34428)
Vulnerability from cvelistv5 – Published: 2022-09-30 19:25 – Updated: 2025-05-20 15:33
VLAI
EPSS
VEX
Summary
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.
Severity
5 (Medium)
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
- CWE-1333 - Inefficient Regular Expression Complexity
Assigner
References
1 reference
| URL | Tags |
|---|---|
| https://www.dell.com/support/kbdoc/en-us/00020334… | x_refsource_MISC |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| Dell | Dell Hybrid Client (DHC) |
Affected:
unspecified , < 1.8
(custom)
|
Date Public
2022-09-14 00:00
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CVE-2022-34402 (GCVE-0-2022-34402)
Vulnerability from cvelistv5 – Published: 2022-10-10 20:55 – Updated: 2024-09-16 23:26
VLAI
EPSS
VEX
Summary
Dell Wyse ThinOS 2205 contains a Regular Expression Denial of Service Vulnerability in UI. An admin privilege attacker could potentially exploit this vulnerability, leading to denial-of-service.
Severity
6.8 (Medium)
CWE
- CWE-1333 - Inefficient Regular Expression Complexity
Assigner
References
1 reference
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| Dell | Wyse Proprietary OS (Modern ThinOS) |
Affected:
unspecified , < ThinOS 2208
(custom)
|
Date Public
2022-09-14 00:00
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CVE-2022-31781 (GCVE-0-2022-31781)
Vulnerability from cvelistv5 – Published: 2022-07-13 07:25 – Updated: 2024-08-03 07:26
VLAI
EPSS
VEX
Title
Regular Expression Denial of Service (ReDoS) in ContentType.java. (GHSL-2022-022)
Summary
Apache Tapestry up to version 5.8.1 is vulnerable to Regular Expression Denial of Service (ReDoS) in the way it handles Content Types. Specially crafted Content Types may cause catastrophic backtracking, taking exponential time to complete. Specifically, this is about the regular expression used on the parameter of the org.apache.tapestry5.http.ContentType class. Apache Tapestry 5.8.2 has a fix for this vulnerability. Notice the vulnerability cannot be triggered by web requests in Tapestry code alone. It would only happen if there's some non-Tapestry codepath passing some outside input to the ContentType class constructor.
Severity
No CVSS data available.
CWE
- CWE-1333 - Inefficient Regular Expression Complexity
Assigner
References
1 reference
| URL | Tags |
|---|---|
| https://www.openwall.com/lists/oss-security/2022/… | x_refsource_MISC |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| Apache Software Foundation | Apache Tapestry |
Affected:
5.8.1 , < 5.8.1
(custom)
|
Credits
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CVE-2022-31147 (GCVE-0-2022-31147)
Vulnerability from cvelistv5 – Published: 2022-07-14 19:30 – Updated: 2025-04-23 18:02
VLAI
EPSS
VEX
Title
jquery-validation ReDoS in url2 due to incomplete fix of CVE-2021-43306
Summary
The jQuery Validation Plugin (jquery-validation) provides drop-in validation for forms. Versions of jquery-validation prior to 1.19.5 are vulnerable to regular expression denial of service (ReDoS) when an attacker is able to supply arbitrary input to the url2 method. This is due to an incomplete fix for CVE-2021-43306. Users should upgrade to version 1.19.5 to receive a patch.
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
3 references
| URL | Tags |
|---|---|
| https://github.com/jquery-validation/jquery-valid… | x_refsource_CONFIRM |
| https://github.com/jquery-validation/jquery-valid… | x_refsource_MISC |
| https://github.com/jquery-validation/jquery-valid… | x_refsource_MISC |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| jquery-validation | jquery-validation |
Affected:
< 1.19.5
|
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CVE-2022-29158 (GCVE-0-2022-29158)
Vulnerability from cvelistv5 – Published: 2022-09-02 07:10 – Updated: 2024-08-03 06:10
VLAI
EPSS
VEX
Title
Regular Expression Denial of Service (ReDoS) vulnerability in Apache OFBiz
Summary
Apache OFBiz up to version 18.12.05 is vulnerable to Regular Expression Denial of Service (ReDoS) in the way it handles URLs provided by external, unauthenticated users. Upgrade to 18.12.06 or apply patches at https://issues.apache.org/jira/browse/OFBIZ-12599
Severity
No CVSS data available.
CWE
- CWE-1333 - Inefficient Regular Expression Complexity
Assigner
References
2 references
| URL | Tags |
|---|---|
| https://lists.apache.org/thread/7k92rg1o4ql2yw3o0… | x_refsource_MISC |
| http://www.openwall.com/lists/oss-security/2022/09/02/5 | mailing-listx_refsource_MLIST |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| Apache Software Foundation | Apache OFBiz |
Affected:
Apache OFBiz , ≤ 18.12.05
(custom)
|
Credits
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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.