CVE-2026-79754 (GCVE-0-2026-79754)
Vulnerability from cvelistv5 – Published: 2026-09-02 16:38 – Updated: 2026-09-02 18:04
VLAI
EPSS
VEX
Title
Nuclio: Kaniko build tempDir command injection
Summary
Nuclio is a "Serverless" framework for Real-Time Events and Data Processing. From version 1.6.19 to before version 1.17.2, Nuclio's Dashboard build pipeline does not sanitize the spec.build.tempDir field before using it to construct a shell command. When the Kaniko container builder is enabled, a user with function-create permission can inject shell metacharacters into this field and achieve arbitrary command execution inside the Dashboard container, which runs with a Kubernetes service account holding wildcard access to Secrets, Pods, Jobs, and Deployments in its namespace. This issue has been patched in version 1.17.2.
Severity
SSVC
Exploitation: poc
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-09-02 18:04 UTC
CWE
- CWE-77 - Improper Neutralization of Special Elements used in a Command ('Command Injection')
Assigner
References
4 references
| URL | Tags |
|---|---|
| https://github.com/nuclio/nuclio/security/advisor… | x_refsource_CONFIRM |
| https://github.com/nuclio/nuclio/pull/4190 | x_refsource_MISC |
| https://github.com/nuclio/nuclio/commit/e3ed7de65… | x_refsource_MISC |
| https://github.com/nuclio/nuclio/releases/tag/1.17.2 | x_refsource_MISC |
Impacted products
{
"containers": {
"adp": [
{
"metrics": [
{
"other": {
"content": {
"id": "CVE-2026-79754",
"options": [
{
"Exploitation": "poc"
},
{
"Automatable": "no"
},
{
"Technical Impact": "partial"
}
],
"role": "CISA Coordinator",
"timestamp": "2026-09-02T18:04:24.122487Z",
"version": "2.0.3"
},
"type": "ssvc"
}
}
],
"providerMetadata": {
"dateUpdated": "2026-09-02T18:04:52.605Z",
"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"shortName": "CISA-ADP"
},
"references": [
{
"tags": [
"exploit"
],
"url": "https://github.com/nuclio/nuclio/security/advisories/GHSA-x44h-qmrv-mh72"
}
],
"title": "CISA ADP Vulnrichment"
}
],
"cna": {
"affected": [
{
"product": "nuclio",
"vendor": "nuclio",
"versions": [
{
"status": "affected",
"version": "\u003e= 1.6.19, \u003c 1.17.2"
}
]
}
],
"descriptions": [
{
"lang": "en",
"value": "Nuclio is a \"Serverless\" framework for Real-Time Events and Data Processing. From version 1.6.19 to before version 1.17.2, Nuclio\u0027s Dashboard build pipeline does not sanitize the spec.build.tempDir field before using it to construct a shell command. When the Kaniko container builder is enabled, a user with function-create permission can inject shell metacharacters into this field and achieve arbitrary command execution inside the Dashboard container, which runs with a Kubernetes service account holding wildcard access to Secrets, Pods, Jobs, and Deployments in its namespace. This issue has been patched in version 1.17.2."
}
],
"metrics": [
{
"cvssV4_0": {
"attackComplexity": "LOW",
"attackRequirements": "NONE",
"attackVector": "NETWORK",
"baseScore": 7.1,
"baseSeverity": "HIGH",
"privilegesRequired": "LOW",
"subAvailabilityImpact": "NONE",
"subConfidentialityImpact": "NONE",
"subIntegrityImpact": "NONE",
"userInteraction": "NONE",
"vectorString": "CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:H/VA:N/SC:N/SI:N/SA:N",
"version": "4.0",
"vulnAvailabilityImpact": "NONE",
"vulnConfidentialityImpact": "NONE",
"vulnIntegrityImpact": "HIGH"
}
}
],
"problemTypes": [
{
"descriptions": [
{
"cweId": "CWE-77",
"description": "CWE-77: Improper Neutralization of Special Elements used in a Command (\u0027Command Injection\u0027)",
"lang": "en",
"type": "CWE"
}
]
}
],
"providerMetadata": {
"dateUpdated": "2026-09-02T16:38:50.441Z",
"orgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
"shortName": "GitHub_M"
},
"references": [
{
"name": "https://github.com/nuclio/nuclio/security/advisories/GHSA-x44h-qmrv-mh72",
"tags": [
"x_refsource_CONFIRM"
],
"url": "https://github.com/nuclio/nuclio/security/advisories/GHSA-x44h-qmrv-mh72"
},
{
"name": "https://github.com/nuclio/nuclio/pull/4190",
"tags": [
"x_refsource_MISC"
],
"url": "https://github.com/nuclio/nuclio/pull/4190"
},
{
"name": "https://github.com/nuclio/nuclio/commit/e3ed7de65c20c270a2035b7c27b25800e5b1e252",
"tags": [
"x_refsource_MISC"
],
"url": "https://github.com/nuclio/nuclio/commit/e3ed7de65c20c270a2035b7c27b25800e5b1e252"
},
{
"name": "https://github.com/nuclio/nuclio/releases/tag/1.17.2",
"tags": [
"x_refsource_MISC"
],
"url": "https://github.com/nuclio/nuclio/releases/tag/1.17.2"
}
],
"source": {
"advisory": "GHSA-x44h-qmrv-mh72",
"discovery": "UNKNOWN"
},
"title": "Nuclio: Kaniko build tempDir command injection"
}
},
"cveMetadata": {
"assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
"assignerShortName": "GitHub_M",
"cveId": "CVE-2026-79754",
"datePublished": "2026-09-02T16:38:50.441Z",
"dateReserved": "2026-08-25T14:08:18.109Z",
"dateUpdated": "2026-09-02T18:04:52.605Z",
"state": "PUBLISHED"
},
"dataType": "CVE_RECORD",
"dataVersion": "5.2",
"vulnerability-lookup:meta": {
"epss": {
"cve": "CVE-2026-79754",
"date": "2026-09-09",
"epss": "0.0039",
"percentile": "0.32412"
},
"nvd": "{\"cve\":{\"id\":\"CVE-2026-79754\",\"sourceIdentifier\":\"security-advisories@github.com\",\"published\":\"2026-09-02T17:17:59.770\",\"lastModified\":\"2026-09-09T21:04:42.813\",\"vulnStatus\":\"Deferred\",\"cveTags\":[],\"descriptions\":[{\"lang\":\"en\",\"value\":\"Nuclio is a \\\"Serverless\\\" framework for Real-Time Events and Data Processing. From version 1.6.19 to before version 1.17.2, Nuclio\u0027s Dashboard build pipeline does not sanitize the spec.build.tempDir field before using it to construct a shell command. When the Kaniko container builder is enabled, a user with function-create permission can inject shell metacharacters into this field and achieve arbitrary command execution inside the Dashboard container, which runs with a Kubernetes service account holding wildcard access to Secrets, Pods, Jobs, and Deployments in its namespace. This issue has been patched in version 1.17.2.\"}],\"affected\":[{\"source\":\"security-advisories@github.com\",\"affectedData\":[{\"vendor\":\"nuclio\",\"product\":\"nuclio\",\"versions\":[{\"version\":\"\u003e= 1.6.19, \u003c 1.17.2\",\"status\":\"affected\"}]}]}],\"metrics\":{\"cvssMetricV40\":[{\"source\":\"security-advisories@github.com\",\"type\":\"Secondary\",\"cvssData\":{\"version\":\"4.0\",\"vectorString\":\"CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:H/VA:N/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\",\"baseScore\":7.1,\"baseSeverity\":\"HIGH\",\"attackVector\":\"NETWORK\",\"attackComplexity\":\"LOW\",\"attackRequirements\":\"NONE\",\"privilegesRequired\":\"LOW\",\"userInteraction\":\"NONE\",\"vulnConfidentialityImpact\":\"NONE\",\"vulnIntegrityImpact\":\"HIGH\",\"vulnAvailabilityImpact\":\"NONE\",\"subConfidentialityImpact\":\"NONE\",\"subIntegrityImpact\":\"NONE\",\"subAvailabilityImpact\":\"NONE\",\"exploitMaturity\":\"NOT_DEFINED\",\"confidentialityRequirement\":\"NOT_DEFINED\",\"integrityRequirement\":\"NOT_DEFINED\",\"availabilityRequirement\":\"NOT_DEFINED\",\"modifiedAttackVector\":\"NOT_DEFINED\",\"modifiedAttackComplexity\":\"NOT_DEFINED\",\"modifiedAttackRequirements\":\"NOT_DEFINED\",\"modifiedPrivilegesRequired\":\"NOT_DEFINED\",\"modifiedUserInteraction\":\"NOT_DEFINED\",\"modifiedVulnConfidentialityImpact\":\"NOT_DEFINED\",\"modifiedVulnIntegrityImpact\":\"NOT_DEFINED\",\"modifiedVulnAvailabilityImpact\":\"NOT_DEFINED\",\"modifiedSubConfidentialityImpact\":\"NOT_DEFINED\",\"modifiedSubIntegrityImpact\":\"NOT_DEFINED\",\"modifiedSubAvailabilityImpact\":\"NOT_DEFINED\",\"Safety\":\"NOT_DEFINED\",\"Automatable\":\"NOT_DEFINED\",\"Recovery\":\"NOT_DEFINED\",\"valueDensity\":\"NOT_DEFINED\",\"vulnerabilityResponseEffort\":\"NOT_DEFINED\",\"providerUrgency\":\"NOT_DEFINED\"}}],\"ssvcV203\":[{\"source\":\"134c704f-9b21-4f2e-91b3-4a467353bcc0\",\"ssvcData\":{\"timestamp\":\"2026-09-02T18:04:24.122487Z\",\"id\":\"CVE-2026-79754\",\"options\":[{\"exploitation\":\"poc\"},{\"automatable\":\"no\"},{\"technicalImpact\":\"partial\"}],\"role\":\"CISA Coordinator\",\"version\":\"2.0.3\"}}]},\"weaknesses\":[{\"source\":\"security-advisories@github.com\",\"type\":\"Secondary\",\"description\":[{\"lang\":\"en\",\"value\":\"CWE-77\"}]}],\"references\":[{\"url\":\"https://github.com/nuclio/nuclio/commit/e3ed7de65c20c270a2035b7c27b25800e5b1e252\",\"source\":\"security-advisories@github.com\"},{\"url\":\"https://github.com/nuclio/nuclio/pull/4190\",\"source\":\"security-advisories@github.com\"},{\"url\":\"https://github.com/nuclio/nuclio/releases/tag/1.17.2\",\"source\":\"security-advisories@github.com\"},{\"url\":\"https://github.com/nuclio/nuclio/security/advisories/GHSA-x44h-qmrv-mh72\",\"source\":\"security-advisories@github.com\"},{\"url\":\"https://github.com/nuclio/nuclio/security/advisories/GHSA-x44h-qmrv-mh72\",\"source\":\"134c704f-9b21-4f2e-91b3-4a467353bcc0\"}]}}"
}
}
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…
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.
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.
Loading…
Loading…