CVE-2026-9089 (GCVE-0-2026-9089)
Vulnerability from cvelistv5 – Published: 2026-05-21 14:32 – Updated: 2026-05-22 03:55
VLAI
EPSS
VEX
Summary
The ConnectWise Automate™ Agent does not fully verify the authenticity of components obtained during plugin loading and self-update operations. This issue is addressed in Automate 2026.5.
Severity
8.8 (High)
SSVC
Exploitation: none
Automatable: no
Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-05-21 00:00 UTC
CWE
- CWE-494 - Download of code without integrity check
Assigner
References
1 reference
Impacted products
1 product
| Vendor | Product | Version | CPE status | |
|---|---|---|---|---|
| ConnectWise | Automate |
Affected:
All versions prior to 2026.5
|
guessed |
{
"containers": {
"adp": [
{
"metrics": [
{
"other": {
"content": {
"id": "CVE-2026-9089",
"options": [
{
"Exploitation": "none"
},
{
"Automatable": "no"
},
{
"Technical Impact": "total"
}
],
"role": "CISA Coordinator",
"timestamp": "2026-05-21T00:00:00+00:00",
"version": "2.0.3"
},
"type": "ssvc"
}
}
],
"providerMetadata": {
"dateUpdated": "2026-05-22T03:55:44.803Z",
"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"shortName": "CISA-ADP"
},
"title": "CISA ADP Vulnrichment"
}
],
"cna": {
"affected": [
{
"defaultStatus": "unaffected",
"modules": [
"Agent"
],
"product": "Automate",
"vendor": "ConnectWise",
"versions": [
{
"status": "affected",
"version": "All versions prior to 2026.5"
}
]
}
],
"descriptions": [
{
"lang": "en",
"supportingMedia": [
{
"base64": false,
"type": "text/html",
"value": "The ConnectWise Automate\u2122 Agent does not fully verify the authenticity of components obtained during plugin loading and self-update operations. This issue is addressed in Automate 2026.5."
}
],
"value": "The ConnectWise Automate\u2122 Agent does not fully verify the authenticity of components obtained during plugin loading and self-update operations. This issue is addressed in Automate 2026.5."
}
],
"impacts": [
{
"capecId": "CAPEC-186",
"descriptions": [
{
"lang": "en",
"value": "CAPEC-186 Malicious Software Update"
}
]
}
],
"metrics": [
{
"cvssV3_1": {
"attackComplexity": "LOW",
"attackVector": "ADJACENT_NETWORK",
"availabilityImpact": "HIGH",
"baseScore": 8.8,
"baseSeverity": "HIGH",
"confidentialityImpact": "HIGH",
"integrityImpact": "HIGH",
"privilegesRequired": "NONE",
"scope": "UNCHANGED",
"userInteraction": "NONE",
"vectorString": "CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
"version": "3.1"
},
"format": "CVSS",
"scenarios": [
{
"lang": "en",
"value": "GENERAL"
}
]
}
],
"problemTypes": [
{
"descriptions": [
{
"cweId": "CWE-494",
"description": "CWE-494 Download of code without integrity check",
"lang": "en",
"type": "CWE"
}
]
}
],
"providerMetadata": {
"dateUpdated": "2026-05-21T14:32:14.029Z",
"orgId": "7d616e1a-3288-43b1-a0dd-0a65d3e70a49",
"shortName": "ConnectWise"
},
"references": [
{
"url": "https://www.connectwise.com/company/trust/security-bulletins/2026-05-21-connectwise-automate-bulletin"
}
],
"solutions": [
{
"lang": "en",
"supportingMedia": [
{
"base64": false,
"type": "text/html",
"value": "\u003cp\u003e\u003cb\u003eCloud:\u0026nbsp;\u003c/b\u003e\u003cspan\u003eCloud instances have already been updated to the latest\nAutomate release.\u0026nbsp;\u0026nbsp;\u003c/span\u003e\u003cspan\u003e\u0026nbsp;\u003c/span\u003e\u003c/p\u003e\n\n\u003cp\u003e\u003cb\u003eOn-prem:\u003c/b\u003e\u0026nbsp;\u003cspan\u003eApply the 2026.5\nrelease.\u0026nbsp;\u003c/span\u003e\u003cspan\u003eFor instruction on updating to the newest release, please reference\nthis doc:\u0026nbsp;\u003c/span\u003e\u003ca href=\"https://docs.connectwise.com/ConnectWise_Automate_Documentation/100/Automate_Release_Notes_Version_2026/05\"\u003eConnectWise Automate Release\nNotes 2026.5\u003c/a\u003e\u003c/p\u003e\u003cp\u003e\u003cb\u003e\u003c/b\u003e\u003c/p\u003e\n\n\u003cdiv\u003e\n\n\n\n\n\n\u003cdiv\u003e\n\n\u003cdiv\u003e\u003ca\u003e\u003c/a\u003e\n\n\u003cp\u003e\u003cbr\u003e\u003c/p\u003e\u003c/div\u003e\u003c/div\u003e\u003cdiv\u003e\u003cdiv\u003e\n\n\u003c/div\u003e\n\n\u003c/div\u003e\n\n\u003c/div\u003e"
}
],
"value": "Cloud:\u00a0Cloud instances have already been updated to the latest\nAutomate release.\u00a0\u00a0\u00a0\n\n\n\n\n\nOn-prem:\u00a0Apply the 2026.5\nrelease.\u00a0For instruction on updating to the newest release, please reference\nthis doc:\u00a0ConnectWise Automate Release\nNotes 2026.5"
}
],
"source": {
"discovery": "UNKNOWN"
},
"x_generator": {
"engine": "Vulnogram 1.0.2"
}
}
},
"cveMetadata": {
"assignerOrgId": "7d616e1a-3288-43b1-a0dd-0a65d3e70a49",
"assignerShortName": "ConnectWise",
"cveId": "CVE-2026-9089",
"datePublished": "2026-05-21T14:32:14.029Z",
"dateReserved": "2026-05-20T15:02:32.409Z",
"dateUpdated": "2026-05-22T03:55:44.803Z",
"state": "PUBLISHED"
},
"dataType": "CVE_RECORD",
"dataVersion": "5.2",
"vulnerability-lookup:meta": {
"epss": {
"cve": "CVE-2026-9089",
"date": "2026-10-01",
"epss": "0.00212",
"percentile": "0.1039"
},
"nvd": {
"cve": {
"affected": [
{
"affectedData": [
{
"defaultStatus": "unaffected",
"modules": [
"Agent"
],
"product": "Automate",
"vendor": "ConnectWise",
"versions": [
{
"status": "affected",
"version": "All versions prior to 2026.5"
}
]
}
],
"source": "7d616e1a-3288-43b1-a0dd-0a65d3e70a49"
}
],
"configurations": [
{
"nodes": [
{
"cpeMatch": [
{
"criteria": "cpe:2.3:a:connectwise:automate:*:*:*:*:*:*:*:*",
"matchCriteriaId": "3FA91E89-B0A8-4F5D-B262-923D2901827A",
"versionEndExcluding": "2026.5",
"vulnerable": true
}
],
"negate": false,
"operator": "OR"
}
]
}
],
"cveTags": [],
"descriptions": [
{
"lang": "en",
"value": "The ConnectWise Automate\u2122 Agent does not fully verify the authenticity of components obtained during plugin loading and self-update operations. This issue is addressed in Automate 2026.5."
},
{
"lang": "es",
"value": "El Agente de ConnectWise Automate\u2122 no verifica completamente la autenticidad de los componentes obtenidos durante la carga de plugins y las operaciones de autoactualizaci\u00f3n. Este problema se aborda en Automate 2026.5."
}
],
"id": "CVE-2026-9089",
"lastModified": "2026-07-23T16:10:00.137",
"metrics": {
"cvssMetricV31": [
{
"cvssData": {
"attackComplexity": "LOW",
"attackVector": "ADJACENT_NETWORK",
"availabilityImpact": "HIGH",
"baseScore": 8.8,
"baseSeverity": "HIGH",
"confidentialityImpact": "HIGH",
"integrityImpact": "HIGH",
"privilegesRequired": "NONE",
"scope": "UNCHANGED",
"userInteraction": "NONE",
"vectorString": "CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
"version": "3.1"
},
"exploitabilityScore": 2.8,
"impactScore": 5.9,
"source": "7d616e1a-3288-43b1-a0dd-0a65d3e70a49",
"type": "Secondary"
}
],
"ssvcV203": [
{
"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"ssvcData": {
"id": "CVE-2026-9089",
"options": [
{
"exploitation": "none"
},
{
"automatable": "no"
},
{
"technicalImpact": "total"
}
],
"role": "CISA Coordinator",
"timestamp": "2026-05-21T00:00:00+00:00",
"version": "2.0.3"
}
}
]
},
"published": "2026-05-21T16:16:23.570",
"references": [
{
"source": "7d616e1a-3288-43b1-a0dd-0a65d3e70a49",
"tags": [
"Vendor Advisory"
],
"url": "https://www.connectwise.com/company/trust/security-bulletins/2026-05-21-connectwise-automate-bulletin"
}
],
"sourceIdentifier": "7d616e1a-3288-43b1-a0dd-0a65d3e70a49",
"vulnStatus": "Analyzed",
"weaknesses": [
{
"description": [
{
"lang": "en",
"value": "CWE-494"
}
],
"source": "7d616e1a-3288-43b1-a0dd-0a65d3e70a49",
"type": "Secondary"
}
]
}
},
"redhat_vex": {
"current_release_date": "2026-06-05T19:18:40+00:00",
"cve": "CVE-2026-9089",
"id": "CVE-2026-9089",
"initial_release_date": "2026-01-01T00:00:00+00:00",
"product_status:known_not_affected": "1",
"source": "Red Hat CSAF VEX",
"status": "final",
"title": "CVE-2026-9089",
"url": "https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-9089.json",
"version": "3"
},
"vulnrichment": {
"containers": {
"adp": [
{
"metrics": [
{
"other": {
"content": {
"id": "CVE-2026-9089",
"options": [
{
"Exploitation": "none"
},
{
"Automatable": "no"
},
{
"Technical Impact": "total"
}
],
"role": "CISA Coordinator",
"timestamp": "2026-05-21T15:55:22.083417Z",
"version": "2.0.3"
},
"type": "ssvc"
}
}
],
"providerMetadata": {
"dateUpdated": "2026-05-21T15:55:28.169Z",
"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"shortName": "CISA-ADP"
},
"title": "CISA ADP Vulnrichment"
}
],
"cna": {
"affected": [
{
"defaultStatus": "unaffected",
"modules": [
"Agent"
],
"product": "Automate",
"vendor": "ConnectWise",
"versions": [
{
"status": "affected",
"version": "All versions prior to 2026.5"
}
]
}
],
"descriptions": [
{
"lang": "en",
"supportingMedia": [
{
"base64": false,
"type": "text/html",
"value": "The ConnectWise Automate\u2122 Agent does not fully verify the authenticity of components obtained during plugin loading and self-update operations. This issue is addressed in Automate 2026.5."
}
],
"value": "The ConnectWise Automate\u2122 Agent does not fully verify the authenticity of components obtained during plugin loading and self-update operations. This issue is addressed in Automate 2026.5."
}
],
"impacts": [
{
"capecId": "CAPEC-186",
"descriptions": [
{
"lang": "en",
"value": "CAPEC-186 Malicious Software Update"
}
]
}
],
"metrics": [
{
"cvssV3_1": {
"attackComplexity": "LOW",
"attackVector": "ADJACENT_NETWORK",
"availabilityImpact": "HIGH",
"baseScore": 8.8,
"baseSeverity": "HIGH",
"confidentialityImpact": "HIGH",
"integrityImpact": "HIGH",
"privilegesRequired": "NONE",
"scope": "UNCHANGED",
"userInteraction": "NONE",
"vectorString": "CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
"version": "3.1"
},
"format": "CVSS",
"scenarios": [
{
"lang": "en",
"value": "GENERAL"
}
]
}
],
"problemTypes": [
{
"descriptions": [
{
"cweId": "CWE-494",
"description": "CWE-494 Download of code without integrity check",
"lang": "en",
"type": "CWE"
}
]
}
],
"providerMetadata": {
"dateUpdated": "2026-05-21T14:32:14.029Z",
"orgId": "7d616e1a-3288-43b1-a0dd-0a65d3e70a49",
"shortName": "ConnectWise"
},
"references": [
{
"url": "https://www.connectwise.com/company/trust/security-bulletins/2026-05-21-connectwise-automate-bulletin"
}
],
"solutions": [
{
"lang": "en",
"supportingMedia": [
{
"base64": false,
"type": "text/html",
"value": "\u003cp\u003e\u003cb\u003eCloud:\u0026nbsp;\u003c/b\u003e\u003cspan\u003eCloud instances have already been updated to the latest\nAutomate release.\u0026nbsp;\u0026nbsp;\u003c/span\u003e\u003cspan\u003e\u0026nbsp;\u003c/span\u003e\u003c/p\u003e\n\n\u003cp\u003e\u003cb\u003eOn-prem:\u003c/b\u003e\u0026nbsp;\u003cspan\u003eApply the 2026.5\nrelease.\u0026nbsp;\u003c/span\u003e\u003cspan\u003eFor instruction on updating to the newest release, please reference\nthis doc:\u0026nbsp;\u003c/span\u003e\u003ca href=\"https://docs.connectwise.com/ConnectWise_Automate_Documentation/100/Automate_Release_Notes_Version_2026/05\"\u003eConnectWise Automate Release\nNotes 2026.5\u003c/a\u003e\u003c/p\u003e\u003cp\u003e\u003cb\u003e\u003c/b\u003e\u003c/p\u003e\n\n\u003cdiv\u003e\n\n\n\n\n\n\u003cdiv\u003e\n\n\u003cdiv\u003e\u003ca\u003e\u003c/a\u003e\n\n\u003cp\u003e\u003cbr\u003e\u003c/p\u003e\u003c/div\u003e\u003c/div\u003e\u003cdiv\u003e\u003cdiv\u003e\n\n\u003c/div\u003e\n\n\u003c/div\u003e\n\n\u003c/div\u003e"
}
],
"value": "Cloud:\u00a0Cloud instances have already been updated to the latest\nAutomate release.\u00a0\u00a0\u00a0\n\n\n\n\n\nOn-prem:\u00a0Apply the 2026.5\nrelease.\u00a0For instruction on updating to the newest release, please reference\nthis doc:\u00a0ConnectWise Automate Release\nNotes 2026.5"
}
],
"source": {
"discovery": "UNKNOWN"
},
"x_generator": {
"engine": "Vulnogram 1.0.2"
}
}
},
"cveMetadata": {
"assignerOrgId": "7d616e1a-3288-43b1-a0dd-0a65d3e70a49",
"assignerShortName": "ConnectWise",
"cveId": "CVE-2026-9089",
"datePublished": "2026-05-21T14:32:14.029Z",
"dateReserved": "2026-05-20T15:02:32.409Z",
"dateUpdated": "2026-05-21T15:55:31.691Z",
"state": "PUBLISHED"
},
"dataType": "CVE_RECORD",
"dataVersion": "5.2"
}
}
}
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…