CVE-2021-3810 - Vulnerability Details - OpenCVE

code-server is vulnerable to Inefficient Regular Expression Complexity

No CVSS v4.0

Attack Vector Network

Attack Complexity Low

Privileges Required None

Scope Unchanged

Confidentiality Impact None

Integrity Impact None

Availability Impact High

User Interaction None

Attack Vector Network

Attack Complexity Low

Privileges Required None

Scope Unchanged

Confidentiality Impact None

Integrity Impact None

Availability Impact High

User Interaction None

Access Vector Network

Access Complexity Low

Authentication None

Confidentiality Impact None

Integrity Impact None

Availability Impact Complete

This CVE is not in the KEV list.

The EPSS score is 0.01262.

Key SSVC decision points have not yet been added.

Vendors	Products
Coder	Code-server

Configuration 1 [-]

cpe:2.3:a:coder:code-server:*:*:*:*:*:*:*:*

No data.

No data.

References

Link	Providers
https://github.com/cdr/code-server/commit/ca617df135e78833f93c8320cb2d2cf8bba809f5
https://huntr.dev/bounties/38888513-30fc-4d8f-805d-34070d60e223

History

No history.

MITRE

Status: PUBLISHED

Assigner: @huntrdev

Published: 2021-09-17T06:15:24.000Z

Updated: 2024-08-03T17:09:09.471Z

Reserved: 2021-09-16T00:00:00.000Z

Link: CVE-2021-3810

Vulnrichment

No data.

NVD

Status : Modified

Published: 2021-09-17T07:15:09.333

Modified: 2026-06-17T04:05:49.063

Link: CVE-2021-3810

Redhat

No data.

OpenCVE Enrichment

No data.

{"containers": {"cna": {"affected": [{"product": "cdr/code-server", "vendor": "cdr", "versions": [{"lessThan": "3.12.0", "status": "affected", "version": "unspecified", "versionType": "custom"}]}], "descriptions": [{"lang": "en", "value": "code-server is vulnerable to Inefficient Regular Expression Complexity"}], "metrics": [{"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", "description": "CWE-1333 Inefficient Regular Expression Complexity", "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": "[email protected]", "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": "<", "version_value": "3.12.0"}]}}]}, "vendor_name": "cdr"}]}}, "data_format": "MITRE", "data_type": "CVE", "data_version": "4.0", "description": {"description_data": [{"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"}}}, "adp": [{"providerMetadata": {"orgId": "af854a3a-2127-422b-91ae-364da2661108", "shortName": "CVE", "dateUpdated": "2024-08-03T17:09:09.471Z"}, "title": "CVE Program Container", "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"}]}]}, "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"}

{"affected": [{"affectedData": [{"product": "cdr/code-server", "vendor": "cdr", "versions": [{"lessThan": "3.12.0", "status": "affected", "version": "unspecified", "versionType": "custom"}]}], "source": "[email protected]"}], "configurations": [{"nodes": [{"cpeMatch": [{"criteria": "cpe:2.3:a:coder:code-server:*:*:*:*:*:*:*:*", "matchCriteriaId": "4A8C250D-8F9A-42EE-9812-CD490E316C28", "versionEndExcluding": "3.12.0", "vulnerable": true}], "negate": false, "operator": "OR"}]}], "cveTags": [], "descriptions": [{"lang": "en", "value": "code-server is vulnerable to Inefficient Regular Expression Complexity"}, {"lang": "es", "value": "code-server es vulnerable a una Complejidad de Expresiones Regulares Ineficientes"}], "id": "CVE-2021-3810", "lastModified": "2026-06-17T04:05:49.063", "metrics": {"cvssMetricV2": [{"acInsufInfo": false, "baseSeverity": "HIGH", "cvssData": {"accessComplexity": "LOW", "accessVector": "NETWORK", "authentication": "NONE", "availabilityImpact": "COMPLETE", "baseScore": 7.8, "confidentialityImpact": "NONE", "integrityImpact": "NONE", "vectorString": "AV:N/AC:L/Au:N/C:N/I:N/A:C", "version": "2.0"}, "exploitabilityScore": 10.0, "impactScore": 6.9, "obtainAllPrivilege": false, "obtainOtherPrivilege": false, "obtainUserPrivilege": false, "source": "[email protected]", "type": "Primary", "userInteractionRequired": false}], "cvssMetricV30": [{"cvssData": {"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"}, "exploitabilityScore": 3.9, "impactScore": 3.6, "source": "[email protected]", "type": "Secondary"}], "cvssMetricV31": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "HIGH", "baseScore": 7.5, "baseSeverity": "HIGH", "confidentialityImpact": "NONE", "integrityImpact": "NONE", "privilegesRequired": "NONE", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H", "version": "3.1"}, "exploitabilityScore": 3.9, "impactScore": 3.6, "source": "[email protected]", "type": "Primary"}]}, "published": "2021-09-17T07:15:09.333", "references": [{"source": "[email protected]", "tags": ["Patch", "Third Party Advisory"], "url": "https://github.com/cdr/code-server/commit/ca617df135e78833f93c8320cb2d2cf8bba809f5"}, {"source": "[email protected]", "tags": ["Exploit", "Issue Tracking", "Patch", "Third Party Advisory"], "url": "https://huntr.dev/bounties/38888513-30fc-4d8f-805d-34070d60e223"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Patch", "Third Party Advisory"], "url": "https://github.com/cdr/code-server/commit/ca617df135e78833f93c8320cb2d2cf8bba809f5"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Exploit", "Issue Tracking", "Patch", "Third Party Advisory"], "url": "https://huntr.dev/bounties/38888513-30fc-4d8f-805d-34070d60e223"}], "sourceIdentifier": "[email protected]", "vulnStatus": "Modified", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-1333"}], "source": "[email protected]", "type": "Secondary"}, {"description": [{"lang": "en", "value": "CWE-1333"}], "source": "[email protected]", "type": "Primary"}]}