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-2025-2811 (GCVE-0-2025-2811)

Vulnerability from cvelistv5 – Published: 2025-04-26 07:00 – Updated: 2025-04-28 18:09
VLAI
Title
GL.iNet GL-A1300 Slate Plus API redos
Summary
A vulnerability was found in GL.iNet GL-A1300 Slate Plus, GL-AR300M16 Shadow, GL-AR300M Shadow, GL-AR750 Creta, GL-AR750S-EXT Slate, GL-AX1800 Flint, GL-AXT1800 Slate AX, GL-B1300 Convexa-B, GL-B3000 Marble, GL-BE3600 Slate 7, GL-E750, GL-E750V2 Mudi, GL-MT300N-V2 Mango, GL-MT1300 Beryl, GL-MT2500 Brume 2, GL-MT3000 Beryl AX, GL-MT6000 Flint 2, GL-SFT1200 Opal, GL-X300B Collie, GL-X750 Spitz, GL-X3000 Spitz AX, GL-XE300 Puli and GL-XE3000 Puli AX 4.x. It has been declared as problematic. This vulnerability affects unknown code of the component API. The manipulation leads to inefficient regular expression complexity. It is recommended to upgrade the affected component.
Severity
6.9 (Medium)
CVSS:4.0/AV:A/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N
5.7 (Medium)
CVSS:3.1/AV:A/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
5.7 (Medium)
CVSS:3.0/AV:A/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
SSVC
Exploitation: poc Automatable: no Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
  • CWE-1333 - Inefficient Regular Expression Complexity
  • CWE-400 - Resource Consumption
Assigner
References
Impacted products
Vendor Product Version
GL.iNet GL-A1300 Slate Plus Affected: 4.x
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GL.iNet GL-AR300M16 Shadow Affected: 4.x
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GL.iNet GL-AR300M Shadow Affected: 4.x
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GL.iNet GL-AR750 Creta Affected: 4.x
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GL.iNet GL-AR750S-EXT Slate Affected: 4.x
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GL.iNet GL-AX1800 Flint Affected: 4.x
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GL.iNet GL-AXT1800 Slate AX Affected: 4.x
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GL.iNet GL-B1300 Convexa-B Affected: 4.x
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GL.iNet GL-B3000 Marble Affected: 4.x
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GL.iNet GL-BE3600 Slate 7 Affected: 4.x
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GL.iNet GL-E750 Affected: 4.x
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GL.iNet GL-E750V2 Mudi Affected: 4.x
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GL.iNet GL-MT300N-V2 Mango Affected: 4.x
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GL.iNet GL-MT1300 Beryl Affected: 4.x
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GL.iNet GL-MT2500 Brume 2 Affected: 4.x
Create a notification for this product.
GL.iNet GL-MT3000 Beryl AX Affected: 4.x
Create a notification for this product.
GL.iNet GL-MT6000 Flint 2 Affected: 4.x
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GL.iNet GL-SFT1200 Opal Affected: 4.x
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GL.iNet GL-X300B Collie Affected: 4.x
Create a notification for this product.
GL.iNet GL-X750 Spitz Affected: 4.x
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GL.iNet GL-X3000 Spitz AX Affected: 4.x
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GL.iNet GL-XE300 Puli Affected: 4.x
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GL.iNet GL-XE3000 Puli AX Affected: 4.x
Create a notification for this product.
Credits
pan.li (VulDB User)
Show details on NVD website
To clipboard 

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        }
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CVE-2025-2833 (GCVE-0-2025-2833)

Vulnerability from cvelistv5 – Published: 2025-03-27 04:00 – Updated: 2025-03-27 13:41
VLAI
Title
zhangyd-c OneBlog HTTP Header redos
Summary
A vulnerability was found in zhangyd-c OneBlog up to 2.3.9. It has been classified as problematic. Affected is an unknown function of the component HTTP Header Handler. The manipulation of the argument X-Forwarded-For leads to inefficient regular expression complexity. It is possible to launch the attack remotely. The exploit has been disclosed to the public and may be used.
Severity
6.9 (Medium)
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N
5.3 (Medium)
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L
5.3 (Medium)
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L
SSVC
Exploitation: poc Automatable: yes Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
  • CWE-1333 - Inefficient Regular Expression Complexity
  • CWE-400 - Resource Consumption
Assigner
References
URL Tags
https://vuldb.com/?id.301470 vdb-entrytechnical-description
https://vuldb.com/?ctiid.301470 signaturepermissions-required
https://vuldb.com/?submit.521813 third-party-advisory
https://github.com/zhangyd-c/OneBlog/issues/35 issue-tracking
https://github.com/zhangyd-c/OneBlog/issues/35#is… exploitissue-tracking
Impacted products
Vendor Product Version
zhangyd-c OneBlog Affected: 2.3.0
Affected: 2.3.1
Affected: 2.3.2
Affected: 2.3.3
Affected: 2.3.4
Affected: 2.3.5
Affected: 2.3.6
Affected: 2.3.7
Affected: 2.3.8
Affected: 2.3.9
Create a notification for this product.
Credits
s1mple_xy (VulDB User)
Show details on NVD website
To clipboard 

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CVE-2025-2937 (GCVE-0-2025-2937)

Vulnerability from cvelistv5 – Published: 2025-08-13 17:26 – Updated: 2025-08-13 20:03
VLAI
Title
Inefficient Regular Expression Complexity in GitLab
Summary
An issue has been discovered in GitLab CE/EE affecting all versions from 13.2 before 18.0.6, 18.1 before 18.1.4, and 18.2 before 18.2.2 that could have allowed authenticated users to create a denial of service condition by sending specially crafted markdown payloads to the Wiki feature.
Severity
6.5 (Medium)
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
SSVC
Exploitation: none Automatable: no Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
  • CWE-1333 - Inefficient Regular Expression Complexity
Assigner
References
URL Tags
https://gitlab.com/gitlab-org/gitlab/-/issues/528995 issue-trackingpermissions-required
https://hackerone.com/reports/3058879 technical-descriptionexploitpermissions-required
Impacted products
Vendor Product Version
GitLab GitLab Affected: 13.2 , < 18.0.6 (semver)
Affected: 18.1 , < 18.1.4 (semver)
Affected: 18.2 , < 18.2.2 (semver)
    cpe:2.3:a:gitlab:gitlab:*:*:*:*:*:*:*:*
 Create a notification for this product.
Credits
Thanks [yuki_osaki](https://hackerone.com/yuki_osaki) for reporting this vulnerability through our HackerOne bug bounty program
Show details on NVD website
To clipboard 

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CVE-2025-3262 (GCVE-0-2025-3262)

Vulnerability from cvelistv5 – Published: 2025-07-07 09:54 – Updated: 2025-07-07 15:19
VLAI
Title
Regular Expression Denial of Service (ReDoS) in huggingface/transformers
Summary
A Regular Expression Denial of Service (ReDoS) vulnerability was discovered in the huggingface/transformers repository, specifically in version 4.49.0. The vulnerability is due to inefficient regular expression complexity in the `SETTING_RE` variable within the `transformers/commands/chat.py` file. The regex contains repetition groups and non-optimized quantifiers, leading to exponential backtracking when processing 'almost matching' payloads. This can degrade application performance and potentially result in a denial-of-service (DoS) when handling specially crafted input strings. The issue is fixed in version 4.51.0.
Severity
5.3 (Medium)
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L
SSVC
Exploitation: poc Automatable: yes Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
  • CWE-1333 - Inefficient Regular Expression Complexity
Assigner
References
Impacted products
Vendor Product Version
huggingface huggingface/transformers Affected: unspecified , < 4.51.0 (custom)
Create a notification for this product.
Show details on NVD website
To clipboard 

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CVE-2025-3263 (GCVE-0-2025-3263)

Vulnerability from cvelistv5 – Published: 2025-07-07 09:54 – Updated: 2025-07-07 14:51
VLAI
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 in the `get_configuration_file()` function within the `transformers.configuration_utils` module. The affected version is 4.49.0, and the issue is resolved in version 4.51.0. The vulnerability arises from the use of a regular expression pattern `config\.(.*)\.json` that can be exploited to cause excessive CPU consumption through crafted input strings, leading to catastrophic backtracking. This can result in model serving disruption, resource exhaustion, and increased latency in applications using the library.
Severity
5.3 (Medium)
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L
SSVC
Exploitation: poc Automatable: yes Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
  • CWE-1333 - Inefficient Regular Expression Complexity
Assigner
References
Impacted products
Vendor Product Version
huggingface huggingface/transformers Affected: unspecified , < 4.51.0 (custom)
Create a notification for this product.
Show details on NVD website
To clipboard 

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CVE-2025-3264 (GCVE-0-2025-3264)

Vulnerability from cvelistv5 – Published: 2025-07-07 09:55 – Updated: 2025-07-07 14:40
VLAI
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 in the `get_imports()` function within `dynamic_module_utils.py`. This vulnerability affects versions 4.49.0 and is fixed in version 4.51.0. The issue arises from a regular expression pattern `\s*try\s*:.*?except.*?:` used to filter out try/except blocks from Python code, which can be exploited to cause excessive CPU consumption through crafted input strings due to catastrophic backtracking. This vulnerability can lead to remote code loading disruption, resource exhaustion in model serving, supply chain attack vectors, and development pipeline disruption.
Severity
5.3 (Medium)
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L
SSVC
Exploitation: poc Automatable: yes Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
  • CWE-1333 - Inefficient Regular Expression Complexity
Assigner
References
Impacted products
Vendor Product Version
huggingface huggingface/transformers Affected: unspecified , < 4.51.0 (custom)
Create a notification for this product.
Show details on NVD website
To clipboard 

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CVE-2025-33090 (GCVE-0-2025-33090)

Vulnerability from cvelistv5 – Published: 2025-08-18 14:01 – Updated: 2025-08-18 14:09
VLAI
Title
IBM Concert Software denial of service
Summary
IBM Concert Software 1.0.0 through 1.1.0 could allow a remote attacker to cause a denial of service using a specially crafted regular expression that would cause excessive resource consumption.
Severity
7.5 (High)
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
SSVC
Exploitation: none Automatable: yes Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
  • CWE-1333 - Inefficient Regular Expression Complexity
Assigner
ibm
References
URL Tags
https://www.ibm.com/support/pages/node/7242354 vendor-advisorypatch
Impacted products
Vendor Product Version
IBM Concert Software Affected: 1.0.0 , ≤ 1.1.0 (semver)
    cpe:2.3:a:ibm:concert:1.0.0:*:*:*:*:*:*:*
    cpe:2.3:a:ibm:concert:1.0.1:*:*:*:*:*:*:*
 Create a notification for this product.
Show details on NVD website
To clipboard 

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CVE-2025-3933 (GCVE-0-2025-3933)

Vulnerability from cvelistv5 – Published: 2025-07-11 09:22 – Updated: 2025-07-11 15:07
VLAI
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 DonutProcessor class's `token2json()` method. This vulnerability affects versions 4.50.3 and earlier, and is fixed in version 4.52.1. The issue arises from the regex pattern `<s_(.*?)>` which can be exploited to cause excessive CPU consumption through crafted input strings due to catastrophic backtracking. This vulnerability can lead to service disruption, resource exhaustion, and potential API service vulnerabilities, impacting document processing tasks using the Donut model.
Severity
5.3 (Medium)
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L
SSVC
Exploitation: poc Automatable: yes Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
  • CWE-1333 - Inefficient Regular Expression Complexity
Assigner
References
Impacted products
Vendor Product Version
huggingface huggingface/transformers Affected: unspecified , < 4.52.1 (custom)
Create a notification for this product.
Show details on NVD website
To clipboard 

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CVE-2025-3985 (GCVE-0-2025-3985)

Vulnerability from cvelistv5 – Published: 2025-04-27 20:31 – Updated: 2025-04-28 18:09
VLAI
Title
Apereo CAS ResponseEntity redos
Summary
A vulnerability was found in Apereo CAS 5.2.6. It has been classified as problematic. This affects the function ResponseEntity of the file cas-5.2.6\webapp-mgmt\cas-management-webapp-support\src\main\java\org\apereo\cas\mgmt\services\web\ManageRegisteredServicesMultiActionController.java. The manipulation of the argument Query 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. The vendor was contacted early about this disclosure but did not respond in any way.
Severity
5.1 (Medium)
CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N
2.7 (Low)
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:L
2.7 (Low)
CVSS:3.0/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:L
SSVC
Exploitation: none Automatable: no Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
  • CWE-1333 - Inefficient Regular Expression Complexity
  • CWE-400 - Resource Consumption
Assigner
References
URL Tags
https://vuldb.com/?id.306321 vdb-entrytechnical-description
https://vuldb.com/?ctiid.306321 signaturepermissions-required
https://vuldb.com/?submit.557110 third-party-advisory
https://wx.mail.qq.com/s?k=lzDuxVkSRXUZ0bwZEG exploit
Impacted products
Vendor Product Version
Apereo CAS Affected: 5.2.6
Create a notification for this product.
Credits
caichaoxiong (VulDB User)
Show details on NVD website
To clipboard 

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CVE-2025-3986 (GCVE-0-2025-3986)

Vulnerability from cvelistv5 – Published: 2025-04-27 21:00 – Updated: 2025-04-28 17:38
VLAI
Title
Apereo CAS CasConfigurationMetadataServerController.java redos
Summary
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\rest\CasConfigurationMetadataServerController.java. The manipulation of the argument Name leads to inefficient regular expression complexity. The attack can be initiated remotely. The exploit has been disclosed to the public and may be used. The vendor was contacted early about this disclosure but did not respond in any way.
Severity
5.3 (Medium)
CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N
4.3 (Medium)
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L
4.3 (Medium)
CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L
SSVC
Exploitation: none Automatable: no Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
  • CWE-1333 - Inefficient Regular Expression Complexity
  • CWE-400 - Resource Consumption
Assigner
References
URL Tags
https://vuldb.com/?id.306322 vdb-entrytechnical-description
https://vuldb.com/?ctiid.306322 signaturepermissions-required
https://vuldb.com/?submit.557473 third-party-advisory
https://wx.mail.qq.com/s?k=rk-m8GwRMVMcOjBY1a exploit
Impacted products
Vendor Product Version
Apereo CAS Affected: 5.2.6
Create a notification for this product.
Credits
caichaoxiong (VulDB User)
Show details on NVD website
To clipboard 

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          "lang": "en",
          "value": "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\\rest\\CasConfigurationMetadataServerController.java. The manipulation of the argument Name leads to inefficient regular expression complexity. The attack can be initiated remotely. The exploit has been disclosed to the public and may be used. The vendor was contacted early about this disclosure but did not respond in any way."
        },
        {
          "lang": "de",
          "value": "In Apereo CAS 5.2.6 wurde eine Schwachstelle ausgemacht. Sie wurde als problematisch eingestuft. Betroffen ist eine unbekannte Verarbeitung der Datei cas-5.2.6\\core\\cas-server-core-configuration-metadata-repository\\src\\main\\java\\org\\apereo\\cas\\metadata\\rest\\CasConfigurationMetadataServerController.java. Mittels dem Manipulieren des Arguments Name mit unbekannten Daten kann eine inefficient regular expression complexity-Schwachstelle ausgenutzt werden. Der Angriff kann \u00fcber das Netzwerk passieren. Der Exploit steht zur \u00f6ffentlichen Verf\u00fcgung."
        }
      ],
      "metrics": [
        {
          "cvssV4_0": {
            "baseScore": 5.3,
            "baseSeverity": "MEDIUM",
            "vectorString": "CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N",
            "version": "4.0"
          }
        },
        {
          "cvssV3_1": {
            "baseScore": 4.3,
            "baseSeverity": "MEDIUM",
            "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L",
            "version": "3.1"
          }
        },
        {
          "cvssV3_0": {
            "baseScore": 4.3,
            "baseSeverity": "MEDIUM",
            "vectorString": "CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L",
            "version": "3.0"
          }
        },
        {
          "cvssV2_0": {
            "baseScore": 4,
            "vectorString": "AV:N/AC:L/Au:S/C:N/I:N/A:P",
            "version": "2.0"
          }
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "cweId": "CWE-1333",
              "description": "Inefficient Regular Expression Complexity",
              "lang": "en",
              "type": "CWE"
            }
          ]
        },
        {
          "descriptions": [
            {
              "cweId": "CWE-400",
              "description": "Resource Consumption",
              "lang": "en",
              "type": "CWE"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2025-04-27T21:00:07.694Z",
        "orgId": "1af790b2-7ee1-4545-860a-a788eba489b5",
        "shortName": "VulDB"
      },
      "references": [
        {
          "name": "VDB-306322 | Apereo CAS CasConfigurationMetadataServerController.java redos",
          "tags": [
            "vdb-entry",
            "technical-description"
          ],
          "url": "https://vuldb.com/?id.306322"
        },
        {
          "name": "VDB-306322 | CTI Indicators (IOB, IOC, TTP, IOA)",
          "tags": [
            "signature",
            "permissions-required"
          ],
          "url": "https://vuldb.com/?ctiid.306322"
        },
        {
          "name": "Submit #557473 | Apereo CAS v5.2.6 ReDos Denial of Service",
          "tags": [
            "third-party-advisory"
          ],
          "url": "https://vuldb.com/?submit.557473"
        },
        {
          "tags": [
            "exploit"
          ],
          "url": "https://wx.mail.qq.com/s?k=rk-m8GwRMVMcOjBY1a"
        }
      ],
      "timeline": [
        {
          "lang": "en",
          "time": "2025-04-26T00:00:00.000Z",
          "value": "Advisory disclosed"
        },
        {
          "lang": "en",
          "time": "2025-04-26T02:00:00.000Z",
          "value": "VulDB entry created"
        },
        {
          "lang": "en",
          "time": "2025-04-26T10:12:16.000Z",
          "value": "VulDB entry last update"
        }
      ],
      "title": "Apereo CAS CasConfigurationMetadataServerController.java redos"
    }
  },
  "cveMetadata": {
    "assignerOrgId": "1af790b2-7ee1-4545-860a-a788eba489b5",
    "assignerShortName": "VulDB",
    "cveId": "CVE-2025-3986",
    "datePublished": "2025-04-27T21:00:07.694Z",
    "dateReserved": "2025-04-26T08:07:08.619Z",
    "dateUpdated": "2025-04-28T17:38:45.562Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.1"
}
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.

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