CVE-2026-61743
Chartbrew is an open-source web application that can connect directly to databases and APIs and use the data to create charts. Prior to 5.2.2, Chartbrew's server/modules/safeRequest.js calls validateOutboundUrl() to resolve and validate a target hostname, but request-promise performs a separate DNS resolution for the actual connection. An authenticated user who can create or test API connections and controls the target DNS name can return a public address during validation and a private address during the request, bypassing the protections implemented by server/modules/outboundTargetPolicy.js. This DNS rebinding condition can expose internal services, localhost resources, or cloud metadata endpoints. This issue is fixed in version 5.2.2.
CVSS
- Version: 3.1
- Vector: CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:C/C:H/I:N/A:N
- Base score: 6.3
Exploitation probability (EPSS)
- Probability of exploitation in the next 30 days: 0.40%
- Percentile among all scored CVEs: 33
- Score date: 10/6/2026
EPSS (Exploit Prediction Scoring System, FIRST) estimates how likely a vulnerability is to be exploited in the wild within 30 days. It complements CVSS (impact) and CISA KEV (confirmed exploitation).
🎯 ATT&CK techniques
How this vulnerability is exploited and what the attacker gains, in MITRE ATT&CK terms.
- Exploitation
T1210Exploitation of Remote Serviceslateral movement85 % - Primary impact
T1550.001Application Access Tokenlateral movement75 % - Secondary impact
T1005Data from Local Systemcollection70 %
Usuario autenticado explota DNS rebinding en request-promise para acceder a servicios internos/metadata cloud (AV:N, PR:L); acceso a credenciales o datos internos expuestos mediante SSRF implícito y lectura de información local.
Inferred by our analysis agent from the official description, CVSS vector and CWE, and checked by a supervisor. May contain errors.
🛡️ ATT&CK mitigations that cover these techniques
Affected technologies (1)
⚠ AI-inferred from the description — NVD hasn't analyzed this CVE yet, these aren't verified CPEs.
CWEs
- CWE-350
References
- https://github.com/chartbrew/chartbrew/commit/d38d745fe9e45563be8c33e4c7a17788ee6f13a3
- https://github.com/chartbrew/chartbrew/releases/tag/v5.2.2
- https://github.com/chartbrew/chartbrew/security/advisories/GHSA-9537-vm84-j26f
- https://github.com/chartbrew/chartbrew/security/advisories/GHSA-9537-vm84-j26f
Raw JSON (NVD)
Show
{
"id": "CVE-2026-61743",
"cveTags": [],
"metrics": {
"ssvcV203": [
{
"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"ssvcData": {
"id": "CVE-2026-61743",
"role": "CISA Coordinator",
"options": [
{
"exploitation": "poc"
},
{
"automatable": "no"
},
{
"technicalImpact": "partial"
}
],
"version": "2.0.3",
"timestamp": "2026-09-22T13:27:23.295759Z"
}
}
],
"cvssMetricV31": [
{
"type": "Secondary",
"source": "security-advisories@github.com",
"cvssData": {
"scope": "CHANGED",
"version": "3.1",
"baseScore": 6.3,
"attackVector": "NETWORK",
"baseSeverity": "MEDIUM",
"vectorString": "CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:C/C:H/I:N/A:N",
"integrityImpact": "NONE",
"userInteraction": "NONE",
"attackComplexity": "HIGH",
"availabilityImpact": "NONE",
"privilegesRequired": "LOW",
"confidentialityImpact": "HIGH"
},
"impactScore": 4,
"exploitabilityScore": 1.8
}
]
},
"affected": [
{
"source": "security-advisories@github.com",
"affectedData": [
{
"vendor": "chartbrew",
"product": "chartbrew",
"versions": [
{
"status": "affected",
"version": "< 5.2.2"
}
]
}
]
}
],
"published": "2026-09-21T22:16:57.823",
"references": [
{
"url": "https://github.com/chartbrew/chartbrew/commit/d38d745fe9e45563be8c33e4c7a17788ee6f13a3",
"source": "security-advisories@github.com"
},
{
"url": "https://github.com/chartbrew/chartbrew/releases/tag/v5.2.2",
"source": "security-advisories@github.com"
},
{
"url": "https://github.com/chartbrew/chartbrew/security/advisories/GHSA-9537-vm84-j26f",
"source": "security-advisories@github.com"
},
{
"url": "https://github.com/chartbrew/chartbrew/security/advisories/GHSA-9537-vm84-j26f",
"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0"
}
],
"vulnStatus": "Deferred",
"weaknesses": [
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"source": "security-advisories@github.com",
"description": [
{
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"value": "CWE-350"
}
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}
],
"descriptions": [
{
"lang": "en",
"value": "Chartbrew is an open-source web application that can connect directly to databases and APIs and use the data to create charts. Prior to 5.2.2, Chartbrew's server/modules/safeRequest.js calls validateOutboundUrl() to resolve and validate a target hostname, but request-promise performs a separate DNS resolution for the actual connection. An authenticated user who can create or test API connections and controls the target DNS name can return a public address during validation and a private address during the request, bypassing the protections implemented by server/modules/outboundTargetPolicy.js. This DNS rebinding condition can expose internal services, localhost resources, or cloud metadata endpoints. This issue is fixed in version 5.2.2."
}
],
"lastModified": "2026-09-24T21:25:27.050",
"sourceIdentifier": "security-advisories@github.com"
}