CVE-2026-115731 (GCVE-0-2026-115731)
Vulnerability from cvelistv5 – Published: 2026-11-03 20:40 – Updated: 2026-11-03 20:52
VLAI
EPSS
VEX
Title
Report Deserialization Code Execution
Summary
Deserialization of untrusted data in the report-processing code of Puppet, as used by Puppet Server, in the affected releases, allows a client that holds any CA-signed agent certificate to execute arbitrary code on the Puppet Server as its service user by submitting a report containing a crafted rich-data type via PUT request. Where the certificate authority autosigns requests without strong verification, an unauthenticated network attacker can obtain such a certificate.
Severity
CWE
Assigner
References
1 reference
Impacted products
1 product
| Vendor | Product | Version | CPE status | |
|---|---|---|---|---|
| Perforce | Puppet Enterprise |
Affected:
2023.8.0 , < 2023.8.13
(custom)
Affected: 2025.0.0 , < 2025.12.1 (custom) Affected: 2026.0.0 , < 2026.0.1 (custom) Unaffected: 2023.8.13 Unaffected: 2025.12.1 Unaffected: 2026.0.1 |
guessed |
{
"containers": {
"cna": {
"affected": [
{
"defaultStatus": "affected",
"product": "Puppet Enterprise",
"vendor": "Perforce",
"versions": [
{
"lessThan": "2023.8.13",
"status": "affected",
"version": "2023.8.0",
"versionType": "custom"
},
{
"lessThan": "2025.12.1",
"status": "affected",
"version": "2025.0.0",
"versionType": "custom"
},
{
"lessThan": "2026.0.1",
"status": "affected",
"version": "2026.0.0",
"versionType": "custom"
},
{
"status": "unaffected",
"version": "2023.8.13"
},
{
"status": "unaffected",
"version": "2025.12.1"
},
{
"status": "unaffected",
"version": "2026.0.1"
}
]
}
],
"descriptions": [
{
"lang": "en",
"supportingMedia": [
{
"base64": false,
"type": "text/html",
"value": "\u003cp\u003eDeserialization of untrusted data in the report-processing code of Puppet, as used by Puppet Server, in the affected releases, allows a client that holds any CA-signed agent certificate to execute arbitrary code on the Puppet Server as its service user by submitting a report containing a crafted rich-data type via PUT request. Where the certificate authority autosigns requests without strong verification, an unauthenticated network attacker can obtain such a certificate.\u003c/p\u003e"
}
],
"value": "Deserialization of untrusted data in the report-processing code of Puppet, as used by Puppet Server, in the affected releases, allows a client that holds any CA-signed agent certificate to execute arbitrary code on the Puppet Server as its service user by submitting a report containing a crafted rich-data type via PUT request. Where the certificate authority autosigns requests without strong verification, an unauthenticated network attacker can obtain such a certificate."
}
],
"impacts": [
{
"capecId": "CAPEC-586",
"descriptions": [
{
"lang": "en",
"value": "CAPEC-586 Object Injection"
}
]
},
{
"capecId": "CAPEC-242",
"descriptions": [
{
"lang": "en",
"value": "CAPEC-242 Code Injection"
}
]
}
],
"metrics": [
{
"cvssV4_0": {
"Automatable": "NOT_DEFINED",
"Recovery": "NOT_DEFINED",
"Safety": "NOT_DEFINED",
"attackComplexity": "LOW",
"attackRequirements": "NONE",
"attackVector": "NETWORK",
"baseScore": 9.4,
"baseSeverity": "CRITICAL",
"exploitMaturity": "NOT_DEFINED",
"privilegesRequired": "LOW",
"providerUrgency": "NOT_DEFINED",
"subAvailabilityImpact": "HIGH",
"subConfidentialityImpact": "HIGH",
"subIntegrityImpact": "HIGH",
"userInteraction": "NONE",
"valueDensity": "NOT_DEFINED",
"vectorString": "CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H",
"version": "4.0",
"vulnAvailabilityImpact": "HIGH",
"vulnConfidentialityImpact": "HIGH",
"vulnIntegrityImpact": "HIGH",
"vulnerabilityResponseEffort": "NOT_DEFINED"
},
"format": "CVSS",
"scenarios": [
{
"lang": "en",
"value": "GENERAL"
}
]
}
],
"problemTypes": [
{
"descriptions": [
{
"cweId": "CWE-502",
"description": "CWE-502 Deserialization of Untrusted Data",
"lang": "en",
"type": "CWE"
},
{
"cweId": "CWE-94",
"description": "CWE-94 Improper Control of Generation of Code (\u0027Code Injection\u0027)",
"lang": "en",
"type": "CWE"
}
]
}
],
"providerMetadata": {
"dateUpdated": "2026-11-03T20:52:37.394Z",
"orgId": "ca2a266c-be2f-4d4b-92d0-47b76b1a9c4e",
"shortName": "Perforce"
},
"references": [
{
"url": "https://portal.perforce.com/s/cve/a91Qi000003IaHpIAK/report-deserialization-code-execution"
}
],
"solutions": [
{
"lang": "en",
"supportingMedia": [
{
"base64": false,
"type": "text/html",
"value": "\u003cp\u003eUpgrade to a release that bundles puppet-agent 8.22.2 or 9.1.3 (Puppet Enterprise 2023.8.13, 2025.12.1, or 2026.0.1) and restart puppet server so the fixed code is loaded.\u003c/p\u003e"
}
],
"value": "Upgrade to a release that bundles puppet-agent 8.22.2 or 9.1.3 (Puppet Enterprise 2023.8.13, 2025.12.1, or 2026.0.1) and restart puppet server so the fixed code is loaded."
}
],
"source": {
"discovery": "EXTERNAL"
},
"title": "Report Deserialization Code Execution",
"x_generator": {
"engine": "Vulnogram 1.0.5"
}
}
},
"cveMetadata": {
"assignerOrgId": "ca2a266c-be2f-4d4b-92d0-47b76b1a9c4e",
"assignerShortName": "Perforce",
"cveId": "CVE-2026-115731",
"datePublished": "2026-11-03T20:40:10.100Z",
"dateReserved": "2026-10-23T11:46:21.022Z",
"dateUpdated": "2026-11-03T20:52:37.394Z",
"state": "PUBLISHED"
},
"dataType": "CVE_RECORD",
"dataVersion": "5.2",
"vulnerability-lookup:meta": {
"epss": {
"cve": "CVE-2026-115731",
"date": "2026-11-04",
"epss": "0.00366",
"percentile": "0.30574"
},
"nvd": {
"cve": {
"affected": [
{
"affectedData": [
{
"defaultStatus": "affected",
"product": "Puppet Enterprise",
"vendor": "Perforce",
"versions": [
{
"lessThan": "2023.8.13",
"status": "affected",
"version": "2023.8.0",
"versionType": "custom"
},
{
"lessThan": "2025.12.1",
"status": "affected",
"version": "2025.0.0",
"versionType": "custom"
},
{
"lessThan": "2026.0.1",
"status": "affected",
"version": "2026.0.0",
"versionType": "custom"
},
{
"status": "unaffected",
"version": "2023.8.13"
},
{
"status": "unaffected",
"version": "2025.12.1"
},
{
"status": "unaffected",
"version": "2026.0.1"
}
]
}
],
"source": "security@puppet.com"
}
],
"cveTags": [],
"descriptions": [
{
"lang": "en",
"value": "Deserialization of untrusted data in the report-processing code of Puppet, as used by Puppet Server, in the affected releases, allows a client that holds any CA-signed agent certificate to execute arbitrary code on the Puppet Server as its service user by submitting a report containing a crafted rich-data type via PUT request. Where the certificate authority autosigns requests without strong verification, an unauthenticated network attacker can obtain such a certificate."
}
],
"id": "CVE-2026-115731",
"lastModified": "2026-11-03T21:17:01.867",
"metrics": {
"cvssMetricV40": [
{
"cvssData": {
"Automatable": "NOT_DEFINED",
"Recovery": "NOT_DEFINED",
"Safety": "NOT_DEFINED",
"attackComplexity": "LOW",
"attackRequirements": "NONE",
"attackVector": "NETWORK",
"availabilityRequirement": "NOT_DEFINED",
"baseScore": 9.4,
"baseSeverity": "CRITICAL",
"confidentialityRequirement": "NOT_DEFINED",
"exploitMaturity": "NOT_DEFINED",
"integrityRequirement": "NOT_DEFINED",
"modifiedAttackComplexity": "NOT_DEFINED",
"modifiedAttackRequirements": "NOT_DEFINED",
"modifiedAttackVector": "NOT_DEFINED",
"modifiedPrivilegesRequired": "NOT_DEFINED",
"modifiedSubAvailabilityImpact": "NOT_DEFINED",
"modifiedSubConfidentialityImpact": "NOT_DEFINED",
"modifiedSubIntegrityImpact": "NOT_DEFINED",
"modifiedUserInteraction": "NOT_DEFINED",
"modifiedVulnAvailabilityImpact": "NOT_DEFINED",
"modifiedVulnConfidentialityImpact": "NOT_DEFINED",
"modifiedVulnIntegrityImpact": "NOT_DEFINED",
"privilegesRequired": "LOW",
"providerUrgency": "NOT_DEFINED",
"subAvailabilityImpact": "HIGH",
"subConfidentialityImpact": "HIGH",
"subIntegrityImpact": "HIGH",
"userInteraction": "NONE",
"valueDensity": "NOT_DEFINED",
"vectorString": "CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H/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",
"version": "4.0",
"vulnAvailabilityImpact": "HIGH",
"vulnConfidentialityImpact": "HIGH",
"vulnIntegrityImpact": "HIGH",
"vulnerabilityResponseEffort": "NOT_DEFINED"
},
"source": "security@puppet.com",
"type": "Secondary"
}
]
},
"published": "2026-11-03T21:17:01.867",
"references": [
{
"source": "security@puppet.com",
"url": "https://portal.perforce.com/s/cve/a91Qi000003IaHpIAK/report-deserialization-code-execution"
}
],
"sourceIdentifier": "security@puppet.com",
"vulnStatus": "Received",
"weaknesses": [
{
"description": [
{
"lang": "en",
"value": "CWE-94"
},
{
"lang": "en",
"value": "CWE-502"
}
],
"source": "security@puppet.com",
"type": "Secondary"
}
]
}
},
"redhat_vex": {
"aggregate_severity": "Critical",
"current_release_date": "2026-11-03T23:53:34+00:00",
"cve": "CVE-2026-115731",
"id": "CVE-2026-115731",
"initial_release_date": "2026-11-03T20:40:10.100000+00:00",
"product_status:known_affected": "3",
"source": "Red Hat CSAF VEX",
"status": "final",
"title": "puppetserver: openvox-agent: openvox-server: puppetserver: authenticated remote code execution via report event deserialization",
"url": "https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-115731.json",
"version": "3"
}
}
}
Loading…
Loading…
Drag nodes to arrange them. Double-click a related vulnerability to open it, or a source to visit its link. The Physics button on the left tunes the layout and the simulation; the legend at the bottom left hides or shows nodes by kind and by sighting type.
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.
Vulnerability timeline
Sightings and recorded dates, grouped by day · UTC
Loading timeline…
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.