CVE-2026-16651
temporalio/sqlparser can panic when Parse, ParseStrictDDL, or ParseNext processes a MySQL version comment whose contents are empty or consist only of one to five decimal digits. ExtractMysqlComment does not check the -1 result returned by strings.IndexFunc before using it as a slice boundary. The resulting Go runtime panic propagates unless the caller recovers it on the parsing goroutine, so applications that parse attacker-controlled SQL can terminate. Temporal Server exposes the affected parser through ListWorkers.
Leer descripción completaMostrar menos
When that API is enabled, an authenticated caller with namespace read permission can submit a malformed query that terminates the receiving Matching process. Repeated requests can sustain a denial of service. The issue affects availability only; no confidentiality or integrity impact was identified.
CVSS
- Versión: 4.0
- Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
- Puntuación base: 8.7
Probabilidad de explotación (EPSS)
- Probabilidad de explotación en los próximos 30 días: 0.39%
- Percentil entre todas las CVEs puntuadas: 31
- Fecha de la puntuación: 6/10/2026
EPSS (Exploit Prediction Scoring System, de FIRST) estima la probabilidad de que una vulnerabilidad sea explotada en 30 días. Complementa a CVSS (impacto) y a CISA KEV (explotación confirmada).
🎯 Técnicas ATT&CK
Cómo se explota esta vulnerabilidad y qué consigue el atacante, en el lenguaje de MITRE ATT&CK.
- Explotación
T1190Exploit Public-Facing Applicationinitial access85 % - Impacto principal
T1499.004Application or System Exploitationimpact90 %
Aplicación expuesta (Temporal Server ListWorkers API) con entrada sin validación (comentarios MySQL malformados) causa panic que termina procesos, resultando en DoS de aplicación.
Inferido por nuestro agente de análisis a partir de la descripción oficial, el vector CVSS y la CWE, y comprobado por un supervisor. Puede contener errores.
🛡️ Mitigaciones ATT&CK que cubren estas técnicas
Tecnologías afectadas (2)
⚠ Inferidas por IA a partir de la descripción — NVD aún no ha analizado esta CVE; no son CPE verificados.
CWE
- CWE-129
Referencias
- https://github.com/temporalio/sqlparser/commit/74181ffcbaaf0c52faa925f4cf27ed6c0c2be86f
- https://github.com/temporalio/sqlparser/pull/5
- https://github.com/temporalio/sqlparser/tree/v0.1.0
- https://github.com/temporalio/temporal/pull/11090
- https://github.com/temporalio/temporal/pull/11190
- https://github.com/temporalio/temporal/releases/tag/v1.30.7
- https://github.com/temporalio/temporal/releases/tag/v1.31.3
JSON original (NVD)
Mostrar
{
"id": "CVE-2026-16651",
"cveTags": [],
"metrics": {
"ssvcV203": [
{
"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"ssvcData": {
"id": "CVE-2026-16651",
"role": "CISA Coordinator",
"options": [
{
"exploitation": "none"
},
{
"automatable": "yes"
},
{
"technicalImpact": "partial"
}
],
"version": "2.0.3",
"timestamp": "2026-09-21T15:32:17.328992Z"
}
}
],
"cvssMetricV40": [
{
"type": "Secondary",
"source": "security@temporal.io",
"cvssData": {
"Safety": "NOT_DEFINED",
"version": "4.0",
"Recovery": "NOT_DEFINED",
"baseScore": 8.7,
"Automatable": "NOT_DEFINED",
"attackVector": "NETWORK",
"baseSeverity": "HIGH",
"valueDensity": "NOT_DEFINED",
"vectorString": "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X",
"exploitMaturity": "NOT_DEFINED",
"providerUrgency": "NOT_DEFINED",
"userInteraction": "NONE",
"attackComplexity": "LOW",
"attackRequirements": "NONE",
"privilegesRequired": "NONE",
"subIntegrityImpact": "NONE",
"vulnIntegrityImpact": "NONE",
"integrityRequirement": "NOT_DEFINED",
"modifiedAttackVector": "NOT_DEFINED",
"subAvailabilityImpact": "NONE",
"vulnAvailabilityImpact": "HIGH",
"availabilityRequirement": "NOT_DEFINED",
"modifiedUserInteraction": "NOT_DEFINED",
"modifiedAttackComplexity": "NOT_DEFINED",
"subConfidentialityImpact": "NONE",
"vulnConfidentialityImpact": "NONE",
"confidentialityRequirement": "NOT_DEFINED",
"modifiedAttackRequirements": "NOT_DEFINED",
"modifiedPrivilegesRequired": "NOT_DEFINED",
"modifiedSubIntegrityImpact": "NOT_DEFINED",
"modifiedVulnIntegrityImpact": "NOT_DEFINED",
"vulnerabilityResponseEffort": "NOT_DEFINED",
"modifiedSubAvailabilityImpact": "NOT_DEFINED",
"modifiedVulnAvailabilityImpact": "NOT_DEFINED",
"modifiedSubConfidentialityImpact": "NOT_DEFINED",
"modifiedVulnConfidentialityImpact": "NOT_DEFINED"
}
}
]
},
"affected": [
{
"source": "security@temporal.io",
"affectedData": [
{
"repo": "https://github.com/temporalio/sqlparser",
"vendor": "Temporal Technologies, Inc.",
"modules": [
"Parser"
],
"product": "temporalio/sqlparser",
"versions": [
{
"status": "affected",
"version": "0.0.0-20180604150908-b055e9c9b4fa",
"lessThan": "0.0.0-20260721183040-74181ffcbaaf",
"versionType": "semver"
}
],
"packageName": "github.com/temporalio/sqlparser",
"programFiles": [
"comments.go",
"token.go"
],
"collectionURL": "https://pkg.go.dev",
"defaultStatus": "unaffected",
"programRoutines": [
{
"name": "ExtractMysqlComment"
},
{
"name": "Tokenizer.scanMySQLSpecificComment"
},
{
"name": "Parse"
},
{
"name": "ParseStrictDDL"
},
{
"name": "ParseNext"
}
]
},
{
"cpes": [
"cpe:2.3:a:temporal:temporal:*:*:*:*:*:*:*:*"
],
"repo": "https://github.com/temporalio/temporal",
"vendor": "Temporal Technologies, Inc.",
"modules": [
"Matching"
],
"product": "Temporal Server",
"versions": [
{
"status": "affected",
"version": "1.29.0",
"versionType": "semver",
"lessThanOrEqual": "1.29.7"
},
{
"status": "affected",
"version": "1.30.0",
"lessThan": "1.30.7",
"versionType": "semver"
},
{
"status": "affected",
"version": "1.31.0",
"lessThan": "1.31.3",
"versionType": "semver"
}
],
"packageName": "go.temporal.io/server",
"programFiles": [
"service/matching/handler.go",
"service/matching/workers/worker_query_engine.go"
],
"collectionURL": "https://pkg.go.dev",
"defaultStatus": "unaffected",
"programRoutines": [
{
"name": "Handler.ListWorkers"
},
{
"name": "getWhereCause"
}
]
}
]
}
],
"published": "2026-09-21T12:17:10.167",
"references": [
{
"url": "https://github.com/temporalio/sqlparser/commit/74181ffcbaaf0c52faa925f4cf27ed6c0c2be86f",
"source": "security@temporal.io"
},
{
"url": "https://github.com/temporalio/sqlparser/pull/5",
"source": "security@temporal.io"
},
{
"url": "https://github.com/temporalio/sqlparser/tree/v0.1.0",
"source": "security@temporal.io"
},
{
"url": "https://github.com/temporalio/temporal/pull/11090",
"source": "security@temporal.io"
},
{
"url": "https://github.com/temporalio/temporal/pull/11190",
"source": "security@temporal.io"
},
{
"url": "https://github.com/temporalio/temporal/releases/tag/v1.30.7",
"source": "security@temporal.io"
},
{
"url": "https://github.com/temporalio/temporal/releases/tag/v1.31.3",
"source": "security@temporal.io"
}
],
"vulnStatus": "Awaiting Analysis",
"weaknesses": [
{
"type": "Secondary",
"source": "security@temporal.io",
"description": [
{
"lang": "en",
"value": "CWE-129"
}
]
}
],
"descriptions": [
{
"lang": "en",
"value": "temporalio/sqlparser can panic when Parse, ParseStrictDDL, or ParseNext processes a MySQL version comment whose contents are empty or consist only of one to five decimal digits. ExtractMysqlComment does not check the -1 result returned by strings.IndexFunc before using it as a slice boundary. The resulting Go runtime panic propagates unless the caller recovers it on the parsing goroutine, so applications that parse attacker-controlled SQL can terminate. Temporal Server exposes the affected parser through ListWorkers. When that API is enabled, an authenticated caller with namespace read permission can submit a malformed query that terminates the receiving Matching process. Repeated requests can sustain a denial of service. The issue affects availability only; no confidentiality or integrity impact was identified."
}
],
"lastModified": "2026-09-22T19:40:05.870",
"sourceIdentifier": "security@temporal.io"
}