Vulnerability-Lookup

brew-code-server-cve-2021-3810

Vulnerability from osv_homebrew

Published

2026-08-13 16:40

Modified

2026-08-13 16:40

Summary

Inefficient Regular Expression Complexity in code-server

Details

code-server is vulnerable to Inefficient Regular Expression Complexity

Severity

7.5 (High)


                    
                      CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

References

URL

Type

	https://nvd.nist.gov/vuln/detail/CVE-2021-3810	ADVISORY
	https://github.com/cdr/code-server/commit/ca617df…	WEB
	https://github.com/cdr/code-server	PACKAGE
	https://huntr.dev/bounties/38888513-30fc-4d8f-805…	WEB

JSON

To clipboard

{
  "affected": [
    {
      "ecosystem_specific": {
        "fix": "bump",
        "range_state": "fixed",
        "upstream_fixed_in": "3.12.0"
      },
      "package": {
        "ecosystem": "Homebrew",
        "name": "code-server",
        "purl": "pkg:brew/code-server"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "4.112.0_1"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "database_specific": {
    "confidence": "high",
    "source": "matched",
    "strategy": "registry",
    "upstream_evidence": [
      {
        "ecosystem": "npm",
        "key": "pkg:npm/code-server@4.112.0",
        "name": "code-server",
        "strategy": "registry",
        "subject_version": "4.112.0"
      }
    ]
  },
  "details": "code-server is vulnerable to Inefficient Regular Expression Complexity",
  "id": "BREW-code-server-CVE-2021-3810",
  "modified": "2026-08-13T16:40:10Z",
  "published": "2026-08-13T16:40:10Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2021-3810"
    },
    {
      "type": "WEB",
      "url": "https://github.com/cdr/code-server/commit/ca617df135e78833f93c8320cb2d2cf8bba809f5"
    },
    {
      "type": "PACKAGE",
      "url": "https://github.com/cdr/code-server"
    },
    {
      "type": "WEB",
      "url": "https://huntr.dev/bounties/38888513-30fc-4d8f-805d-34070d60e223"
    }
  ],
  "schema_version": "1.7.3",
  "severity": [
    {
      "score": "CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
      "type": "CVSS_V3"
    }
  ],
  "summary": "Inefficient Regular Expression Complexity in code-server",
  "upstream": [
    "GHSA-49x3-8228-3w3m",
    "CVE-2021-3810"
  ]
}

CVE-2021-3810 (GCVE-0-2021-3810)

Vulnerability from cvelistv5 – Published: 2021-09-17 06:15 – Updated: 2024-08-03 17:09

Title

Inefficient Regular Expression Complexity in cdr/code-server

Summary

code-server is vulnerable to Inefficient Regular Expression Complexity

Severity

7.5 (High)


                        
                          CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

CWE

CWE-1333 - Inefficient Regular Expression Complexity

Assigner

@huntrdev

References

2 references

URL	Tags
https://huntr.dev/bounties/38888513-30fc-4d8f-805…	x_refsource_CONFIRM
https://github.com/cdr/code-server/commit/ca617df…	x_refsource_MISC

Impacted products

1 product

Vendor	Product	Version
cdr	cdr/code-server	Affected: unspecified , < 3.12.0 (custom)

Show details on NVD website

JSON

To clipboard

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    "adp": [
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        "providerMetadata": {
          "dateUpdated": "2024-08-03T17:09:09.471Z",
          "orgId": "af854a3a-2127-422b-91ae-364da2661108",
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        },
        "references": [
          {
            "tags": [
              "x_refsource_CONFIRM",
              "x_transferred"
            ],
            "url": "https://huntr.dev/bounties/38888513-30fc-4d8f-805d-34070d60e223"
          },
          {
            "tags": [
              "x_refsource_MISC",
              "x_transferred"
            ],
            "url": "https://github.com/cdr/code-server/commit/ca617df135e78833f93c8320cb2d2cf8bba809f5"
          }
        ],
        "title": "CVE Program Container"
      }
    ],
    "cna": {
      "affected": [
        {
          "product": "cdr/code-server",
          "vendor": "cdr",
          "versions": [
            {
              "lessThan": "3.12.0",
              "status": "affected",
              "version": "unspecified",
              "versionType": "custom"
            }
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      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "code-server is vulnerable to Inefficient Regular Expression Complexity"
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      "metrics": [
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          "cvssV3_0": {
            "attackComplexity": "LOW",
            "attackVector": "NETWORK",
            "availabilityImpact": "HIGH",
            "baseScore": 7.5,
            "baseSeverity": "HIGH",
            "confidentialityImpact": "NONE",
            "integrityImpact": "NONE",
            "privilegesRequired": "NONE",
            "scope": "UNCHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
            "version": "3.0"
          }
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "cweId": "CWE-1333",
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              "lang": "en",
              "type": "CWE"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2021-09-17T06:15:24.000Z",
        "orgId": "c09c270a-b464-47c1-9133-acb35b22c19a",
        "shortName": "@huntrdev"
      },
      "references": [
        {
          "tags": [
            "x_refsource_CONFIRM"
          ],
          "url": "https://huntr.dev/bounties/38888513-30fc-4d8f-805d-34070d60e223"
        },
        {
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://github.com/cdr/code-server/commit/ca617df135e78833f93c8320cb2d2cf8bba809f5"
        }
      ],
      "source": {
        "advisory": "38888513-30fc-4d8f-805d-34070d60e223",
        "discovery": "EXTERNAL"
      },
      "title": "Inefficient Regular Expression Complexity in cdr/code-server",
      "x_legacyV4Record": {
        "CVE_data_meta": {
          "ASSIGNER": "security@huntr.dev",
          "ID": "CVE-2021-3810",
          "STATE": "PUBLIC",
          "TITLE": "Inefficient Regular Expression Complexity in cdr/code-server"
        },
        "affects": {
          "vendor": {
            "vendor_data": [
              {
                "product": {
                  "product_data": [
                    {
                      "product_name": "cdr/code-server",
                      "version": {
                        "version_data": [
                          {
                            "version_affected": "\u003c",
                            "version_value": "3.12.0"
                          }
                        ]
                      }
                    }
                  ]
                },
                "vendor_name": "cdr"
              }
            ]
          }
        },
        "data_format": "MITRE",
        "data_type": "CVE",
        "data_version": "4.0",
        "description": {
          "description_data": [
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              "lang": "eng",
              "value": "code-server is vulnerable to Inefficient Regular Expression Complexity"
            }
          ]
        },
        "impact": {
          "cvss": {
            "attackComplexity": "LOW",
            "attackVector": "NETWORK",
            "availabilityImpact": "HIGH",
            "baseScore": 7.5,
            "baseSeverity": "HIGH",
            "confidentialityImpact": "NONE",
            "integrityImpact": "NONE",
            "privilegesRequired": "NONE",
            "scope": "UNCHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
            "version": "3.0"
          }
        },
        "problemtype": {
          "problemtype_data": [
            {
              "description": [
                {
                  "lang": "eng",
                  "value": "CWE-1333 Inefficient Regular Expression Complexity"
                }
              ]
            }
          ]
        },
        "references": {
          "reference_data": [
            {
              "name": "https://huntr.dev/bounties/38888513-30fc-4d8f-805d-34070d60e223",
              "refsource": "CONFIRM",
              "url": "https://huntr.dev/bounties/38888513-30fc-4d8f-805d-34070d60e223"
            },
            {
              "name": "https://github.com/cdr/code-server/commit/ca617df135e78833f93c8320cb2d2cf8bba809f5",
              "refsource": "MISC",
              "url": "https://github.com/cdr/code-server/commit/ca617df135e78833f93c8320cb2d2cf8bba809f5"
            }
          ]
        },
        "source": {
          "advisory": "38888513-30fc-4d8f-805d-34070d60e223",
          "discovery": "EXTERNAL"
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  },
  "cveMetadata": {
    "assignerOrgId": "c09c270a-b464-47c1-9133-acb35b22c19a",
    "assignerShortName": "@huntrdev",
    "cveId": "CVE-2021-3810",
    "datePublished": "2021-09-17T06:15:24.000Z",
    "dateReserved": "2021-09-16T00:00:00.000Z",
    "dateUpdated": "2024-08-03T17:09:09.471Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.1"
}

GHSA-49X3-8228-3W3M

Vulnerability from github – Published: 2021-09-20 20:18 – Updated: 2021-09-20 18:59

Summary

Inefficient Regular Expression Complexity in code-server

Details

code-server is vulnerable to Inefficient Regular Expression Complexity

Severity

7.5 (High)


                  
                    CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Show details on source website

JSON

To clipboard

{
  "affected": [
    {
      "package": {
        "ecosystem": "npm",
        "name": "code-server"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "3.12.0"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "aliases": [
    "CVE-2021-3810"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-1333"
    ],
    "github_reviewed": true,
    "github_reviewed_at": "2021-09-20T18:59:46Z",
    "nvd_published_at": "2021-09-17T07:15:00Z",
    "severity": "HIGH"
  },
  "details": "code-server is vulnerable to Inefficient Regular Expression Complexity",
  "id": "GHSA-49x3-8228-3w3m",
  "modified": "2021-09-20T18:59:46Z",
  "published": "2021-09-20T20:18:39Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2021-3810"
    },
    {
      "type": "WEB",
      "url": "https://github.com/cdr/code-server/commit/ca617df135e78833f93c8320cb2d2cf8bba809f5"
    },
    {
      "type": "PACKAGE",
      "url": "https://github.com/cdr/code-server"
    },
    {
      "type": "WEB",
      "url": "https://huntr.dev/bounties/38888513-30fc-4d8f-805d-34070d60e223"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
      "type": "CVSS_V3"
    }
  ],
  "summary": "Inefficient Regular Expression Complexity in code-server"
}

Sightings

Author	Source	Type	Date	Other

Nomenclature

Seen: The vulnerability was mentioned, discussed, or observed by the user.
Confirmed: The vulnerability has been validated from an analyst's perspective.
Published Proof of Concept: A public proof of concept is available for this vulnerability.
Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
Not confirmed: The user expressed doubt about the validity of the vulnerability.
Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.

Detection rules are retrieved from Rulezet.

The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the vulnerability by the CIRCL/vulnerability-attack-technique-classification-roberta-base model, served locally by ML-Gateway. They have not been verified by an analyst and are provided for guidance only.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.

Related by attack behaviour

Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.

Action not permitted

brew-code-server-cve-2021-3810

Vulnerability from osv_homebrew

CVE-2021-3810 (GCVE-0-2021-3810)

GHSA-49X3-8228-3W3M

Tags

Sightings

Nomenclature

Related by attack behaviour