CVE-2020-7661 (GCVE-0-2020-7661)
Vulnerability from cvelistv5 – Published: 2020-06-04 17:15 – Updated: 2024-08-04 09:33
VLAI
EPSS
VEX
Summary
all versions of url-regex are vulnerable to Regular Expression Denial of Service. An attacker providing a very long string in String.test can cause a Denial of Service.
Severity
7.5 (High)
CWE
- Regular Expression Denial of Service
Assigner
References
2 references
| URL | Tags |
|---|---|
| https://github.com/kevva/url-regex/issues/70 | x_refsource_MISC |
| https://snyk.io/vuln/SNYK-JS-URLREGEX-569472 | x_refsource_MISC |
{
"containers": {
"adp": [
{
"providerMetadata": {
"dateUpdated": "2024-08-04T09:33:20.033Z",
"orgId": "af854a3a-2127-422b-91ae-364da2661108",
"shortName": "CVE"
},
"references": [
{
"tags": [
"x_refsource_MISC",
"x_transferred"
],
"url": "https://github.com/kevva/url-regex/issues/70"
},
{
"tags": [
"x_refsource_MISC",
"x_transferred"
],
"url": "https://snyk.io/vuln/SNYK-JS-URLREGEX-569472"
}
],
"title": "CVE Program Container"
}
],
"cna": {
"affected": [
{
"product": "url-regex",
"vendor": "n/a",
"versions": [
{
"status": "affected",
"version": "all versions"
}
]
}
],
"descriptions": [
{
"lang": "en",
"value": "all versions of url-regex are vulnerable to Regular Expression Denial of Service. An attacker providing a very long string in String.test can cause a Denial of Service."
}
],
"problemTypes": [
{
"descriptions": [
{
"description": "Regular Expression Denial of Service",
"lang": "en",
"type": "text"
}
]
}
],
"providerMetadata": {
"dateUpdated": "2020-06-04T17:18:45.000Z",
"orgId": "bae035ff-b466-4ff4-94d0-fc9efd9e1730",
"shortName": "snyk"
},
"references": [
{
"tags": [
"x_refsource_MISC"
],
"url": "https://github.com/kevva/url-regex/issues/70"
},
{
"tags": [
"x_refsource_MISC"
],
"url": "https://snyk.io/vuln/SNYK-JS-URLREGEX-569472"
}
],
"x_legacyV4Record": {
"CVE_data_meta": {
"ASSIGNER": "report@snyk.io",
"ID": "CVE-2020-7661",
"STATE": "PUBLIC"
},
"affects": {
"vendor": {
"vendor_data": [
{
"product": {
"product_data": [
{
"product_name": "url-regex",
"version": {
"version_data": [
{
"version_value": "all versions"
}
]
}
}
]
},
"vendor_name": "n/a"
}
]
}
},
"data_format": "MITRE",
"data_type": "CVE",
"data_version": "4.0",
"description": {
"description_data": [
{
"lang": "eng",
"value": "all versions of url-regex are vulnerable to Regular Expression Denial of Service. An attacker providing a very long string in String.test can cause a Denial of Service."
}
]
},
"problemtype": {
"problemtype_data": [
{
"description": [
{
"lang": "eng",
"value": "Regular Expression Denial of Service"
}
]
}
]
},
"references": {
"reference_data": [
{
"name": "https://github.com/kevva/url-regex/issues/70",
"refsource": "MISC",
"url": "https://github.com/kevva/url-regex/issues/70"
},
{
"name": "https://snyk.io/vuln/SNYK-JS-URLREGEX-569472",
"refsource": "MISC",
"url": "https://snyk.io/vuln/SNYK-JS-URLREGEX-569472"
}
]
}
}
}
},
"cveMetadata": {
"assignerOrgId": "bae035ff-b466-4ff4-94d0-fc9efd9e1730",
"assignerShortName": "snyk",
"cveId": "CVE-2020-7661",
"datePublished": "2020-06-04T17:15:32.000Z",
"dateReserved": "2020-01-21T00:00:00.000Z",
"dateUpdated": "2024-08-04T09:33:20.033Z",
"state": "PUBLISHED"
},
"dataType": "CVE_RECORD",
"dataVersion": "5.1",
"vulnerability-lookup:meta": {
"epss": {
"cve": "CVE-2020-7661",
"date": "2026-09-29",
"epss": "0.0267",
"percentile": "0.85194"
},
"fkie_nvd": {
"configurations": [
{
"nodes": [
{
"cpeMatch": [
{
"criteria": "cpe:2.3:a:url-regex_project:url-regex:*:*:*:*:*:*:*:*",
"matchCriteriaId": "4E568BB4-BE50-4B0C-8F38-2FF8DF24DC98",
"vulnerable": true
}
],
"negate": false,
"operator": "OR"
}
]
}
],
"descriptions": [
{
"lang": "en",
"value": "all versions of url-regex are vulnerable to Regular Expression Denial of Service. An attacker providing a very long string in String.test can cause a Denial of Service."
},
{
"lang": "es",
"value": "Todas las versiones de url-regex son vulnerables a una Denegaci\u00f3n de Servicio de Expresi\u00f3n Regular. Un atacante que proporciona una cadena muy larga en String.test puede causar una Denegaci\u00f3n de Servicio"
}
],
"id": "CVE-2020-7661",
"lastModified": "2024-11-21T05:37:33.687",
"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": "nvd@nist.gov",
"type": "Primary",
"userInteractionRequired": false
}
],
"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": "nvd@nist.gov",
"type": "Primary"
}
]
},
"published": "2020-06-04T18:15:15.013",
"references": [
{
"source": "report@snyk.io",
"tags": [
"Exploit",
"Third Party Advisory"
],
"url": "https://github.com/kevva/url-regex/issues/70"
},
{
"source": "report@snyk.io",
"tags": [
"Exploit",
"Third Party Advisory"
],
"url": "https://snyk.io/vuln/SNYK-JS-URLREGEX-569472"
},
{
"source": "af854a3a-2127-422b-91ae-364da2661108",
"tags": [
"Exploit",
"Third Party Advisory"
],
"url": "https://github.com/kevva/url-regex/issues/70"
},
{
"source": "af854a3a-2127-422b-91ae-364da2661108",
"tags": [
"Exploit",
"Third Party Advisory"
],
"url": "https://snyk.io/vuln/SNYK-JS-URLREGEX-569472"
}
],
"sourceIdentifier": "report@snyk.io",
"vulnStatus": "Modified",
"weaknesses": [
{
"description": [
{
"lang": "en",
"value": "CWE-400"
}
],
"source": "nvd@nist.gov",
"type": "Primary"
}
]
},
"nvd": {
"cve": {
"configurations": [
{
"nodes": [
{
"cpeMatch": [
{
"criteria": "cpe:2.3:a:url-regex_project:url-regex:*:*:*:*:*:*:*:*",
"matchCriteriaId": "4E568BB4-BE50-4B0C-8F38-2FF8DF24DC98",
"vulnerable": true
}
],
"negate": false,
"operator": "OR"
}
]
}
],
"cveTags": [],
"descriptions": [
{
"lang": "en",
"value": "all versions of url-regex are vulnerable to Regular Expression Denial of Service. An attacker providing a very long string in String.test can cause a Denial of Service."
},
{
"lang": "es",
"value": "Todas las versiones de url-regex son vulnerables a una Denegaci\u00f3n de Servicio de Expresi\u00f3n Regular. Un atacante que proporciona una cadena muy larga en String.test puede causar una Denegaci\u00f3n de Servicio"
}
],
"id": "CVE-2020-7661",
"lastModified": "2024-11-21T05:37:33.687",
"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": "nvd@nist.gov",
"type": "Primary",
"userInteractionRequired": false
}
],
"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": "nvd@nist.gov",
"type": "Primary"
}
]
},
"published": "2020-06-04T18:15:15.013",
"references": [
{
"source": "report@snyk.io",
"tags": [
"Exploit",
"Third Party Advisory"
],
"url": "https://github.com/kevva/url-regex/issues/70"
},
{
"source": "report@snyk.io",
"tags": [
"Exploit",
"Third Party Advisory"
],
"url": "https://snyk.io/vuln/SNYK-JS-URLREGEX-569472"
},
{
"source": "af854a3a-2127-422b-91ae-364da2661108",
"tags": [
"Exploit",
"Third Party Advisory"
],
"url": "https://github.com/kevva/url-regex/issues/70"
},
{
"source": "af854a3a-2127-422b-91ae-364da2661108",
"tags": [
"Exploit",
"Third Party Advisory"
],
"url": "https://snyk.io/vuln/SNYK-JS-URLREGEX-569472"
}
],
"sourceIdentifier": "report@snyk.io",
"vulnStatus": "Modified",
"weaknesses": [
{
"description": [
{
"lang": "en",
"value": "CWE-400"
}
],
"source": "nvd@nist.gov",
"type": "Primary"
}
]
}
},
"redhat_vex": {
"current_release_date": "2025-05-22T16:49:26+00:00",
"cve": "CVE-2020-7661",
"id": "CVE-2020-7661",
"initial_release_date": "2020-01-01T00:00:00+00:00",
"product_status:known_not_affected": "1",
"source": "Red Hat CSAF VEX",
"status": "final",
"title": "CVE-2020-7661",
"url": "https://security.access.redhat.com/data/csaf/v2/vex/2020/cve-2020-7661.json",
"version": "3"
}
}
}
Loading…
Loading…
Experimental. This forecast is provided for visualization only and may change without notice. Do not use it for operational decisions.
Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.
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.
Loading…
Loading…
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.
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.
Loading…
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.
Loading…