CVE-2026-55762 (GCVE-0-2026-55762)
Vulnerability from cvelistv5 – Published: 2026-06-24 21:08 – Updated: 2026-06-25 12:34
VLAI
EPSS
VEX
Title
Rocket.Chat: Any Authenticated User Can Permanently Deregister Workspace from Rocket.Chat Cloud via Unprotected `/api/v1/fingerprint` Endpoint
Summary
Rocket.Chat is an open-source, secure, fully customizable communications platform. Prior to 8.5.1, 8.4.4, 8.3.6, 8.2.6, 8.1.6, 8.0.7, and 7.10.13, the POST /api/v1/fingerprint REST endpoint enforces authentication (authRequired: true) but performs no authorization check. Any authenticated user — including a standard user role account — can call this endpoint with {"setDeploymentAs": "new-workspace"} to permanently deregister the workspace from Rocket.Chat Cloud. This wipes all cloud credentials, removes the workspace license, breaks push notifications for all users, and requires manual re-registration to recover. This vulnerability is fixed in 8.5.1, 8.4.4, 8.3.6, 8.2.6, 8.1.6, 8.0.7, and 7.10.13.
Severity
8.1 (High)
SSVC
Exploitation: none
Automatable: no
Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-06-25 12:34 UTC
CWE
- CWE-862 - Missing Authorization
Assigner
References
1 reference
| URL | Tags |
|---|---|
| https://github.com/RocketChat/Rocket.Chat/securit… | x_refsource_CONFIRM |
Impacted products
1 product
| Vendor | Product | Version | CPE status | |
|---|---|---|---|---|
| RocketChat | Rocket.Chat |
Affected:
>= 8.5.0-rc.0, < 8.5.1
Affected: >= 8.4.0-rc.0, < 8.4.4 Affected: >= 8.3.0-rc.0, < 8.3.6 Affected: >= 8.2.0-rc.0, < 8.2.6 Affected: >= 8.1.0-rc.0, < 8.1.6 Affected: >= 7.11.0-rc.0, < 8.0.7 Affected: < 7.10.13 |
guessed |
{
"containers": {
"adp": [
{
"metrics": [
{
"other": {
"content": {
"id": "CVE-2026-55762",
"options": [
{
"Exploitation": "none"
},
{
"Automatable": "no"
},
{
"Technical Impact": "total"
}
],
"role": "CISA Coordinator",
"timestamp": "2026-06-25T12:34:23.639307Z",
"version": "2.0.3"
},
"type": "ssvc"
}
}
],
"providerMetadata": {
"dateUpdated": "2026-06-25T12:34:32.535Z",
"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"shortName": "CISA-ADP"
},
"title": "CISA ADP Vulnrichment"
}
],
"cna": {
"affected": [
{
"product": "Rocket.Chat",
"vendor": "RocketChat",
"versions": [
{
"status": "affected",
"version": "\u003e= 8.5.0-rc.0, \u003c 8.5.1"
},
{
"status": "affected",
"version": "\u003e= 8.4.0-rc.0, \u003c 8.4.4"
},
{
"status": "affected",
"version": "\u003e= 8.3.0-rc.0, \u003c 8.3.6"
},
{
"status": "affected",
"version": "\u003e= 8.2.0-rc.0, \u003c 8.2.6"
},
{
"status": "affected",
"version": "\u003e= 8.1.0-rc.0, \u003c 8.1.6"
},
{
"status": "affected",
"version": "\u003e= 7.11.0-rc.0, \u003c 8.0.7"
},
{
"status": "affected",
"version": "\u003c 7.10.13"
}
]
}
],
"descriptions": [
{
"lang": "en",
"value": "Rocket.Chat is an open-source, secure, fully customizable communications platform. Prior to 8.5.1, 8.4.4, 8.3.6, 8.2.6, 8.1.6, 8.0.7, and 7.10.13, the POST /api/v1/fingerprint REST endpoint enforces authentication (authRequired: true) but performs no authorization check. Any authenticated user \u2014 including a standard user role account \u2014 can call this endpoint with {\"setDeploymentAs\": \"new-workspace\"} to permanently deregister the workspace from Rocket.Chat Cloud. This wipes all cloud credentials, removes the workspace license, breaks push notifications for all users, and requires manual re-registration to recover. This vulnerability is fixed in 8.5.1, 8.4.4, 8.3.6, 8.2.6, 8.1.6, 8.0.7, and 7.10.13."
}
],
"metrics": [
{
"cvssV3_1": {
"attackComplexity": "LOW",
"attackVector": "NETWORK",
"availabilityImpact": "HIGH",
"baseScore": 8.1,
"baseSeverity": "HIGH",
"confidentialityImpact": "NONE",
"integrityImpact": "HIGH",
"privilegesRequired": "LOW",
"scope": "UNCHANGED",
"userInteraction": "NONE",
"vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:H",
"version": "3.1"
}
}
],
"problemTypes": [
{
"descriptions": [
{
"cweId": "CWE-862",
"description": "CWE-862: Missing Authorization",
"lang": "en",
"type": "CWE"
}
]
}
],
"providerMetadata": {
"dateUpdated": "2026-06-24T21:08:01.271Z",
"orgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
"shortName": "GitHub_M"
},
"references": [
{
"name": "https://github.com/RocketChat/Rocket.Chat/security/advisories/GHSA-8hhc-j325-rxqp",
"tags": [
"x_refsource_CONFIRM"
],
"url": "https://github.com/RocketChat/Rocket.Chat/security/advisories/GHSA-8hhc-j325-rxqp"
}
],
"source": {
"advisory": "GHSA-8hhc-j325-rxqp",
"discovery": "UNKNOWN"
},
"title": "Rocket.Chat: Any Authenticated User Can Permanently Deregister Workspace from Rocket.Chat Cloud via Unprotected `/api/v1/fingerprint` Endpoint"
}
},
"cveMetadata": {
"assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
"assignerShortName": "GitHub_M",
"cveId": "CVE-2026-55762",
"datePublished": "2026-06-24T21:08:01.271Z",
"dateReserved": "2026-06-17T14:34:51.880Z",
"dateUpdated": "2026-06-25T12:34:32.535Z",
"state": "PUBLISHED"
},
"dataType": "CVE_RECORD",
"dataVersion": "5.2",
"vulnerability-lookup:meta": {
"epss": {
"cve": "CVE-2026-55762",
"date": "2026-09-30",
"epss": "0.00474",
"percentile": "0.38669"
},
"nvd": {
"cve": {
"affected": [
{
"affectedData": [
{
"product": "Rocket.Chat",
"vendor": "RocketChat",
"versions": [
{
"status": "affected",
"version": "\u003e= 8.5.0-rc.0, \u003c 8.5.1"
},
{
"status": "affected",
"version": "\u003e= 8.4.0-rc.0, \u003c 8.4.4"
},
{
"status": "affected",
"version": "\u003e= 8.3.0-rc.0, \u003c 8.3.6"
},
{
"status": "affected",
"version": "\u003e= 8.2.0-rc.0, \u003c 8.2.6"
},
{
"status": "affected",
"version": "\u003e= 8.1.0-rc.0, \u003c 8.1.6"
},
{
"status": "affected",
"version": "\u003e= 7.11.0-rc.0, \u003c 8.0.7"
},
{
"status": "affected",
"version": "\u003c 7.10.13"
}
]
}
],
"source": "security-advisories@github.com"
}
],
"cveTags": [],
"descriptions": [
{
"lang": "en",
"value": "Rocket.Chat is an open-source, secure, fully customizable communications platform. Prior to 8.5.1, 8.4.4, 8.3.6, 8.2.6, 8.1.6, 8.0.7, and 7.10.13, the POST /api/v1/fingerprint REST endpoint enforces authentication (authRequired: true) but performs no authorization check. Any authenticated user \u2014 including a standard user role account \u2014 can call this endpoint with {\"setDeploymentAs\": \"new-workspace\"} to permanently deregister the workspace from Rocket.Chat Cloud. This wipes all cloud credentials, removes the workspace license, breaks push notifications for all users, and requires manual re-registration to recover. This vulnerability is fixed in 8.5.1, 8.4.4, 8.3.6, 8.2.6, 8.1.6, 8.0.7, and 7.10.13."
}
],
"id": "CVE-2026-55762",
"lastModified": "2026-06-25T14:19:40.697",
"metrics": {
"cvssMetricV31": [
{
"cvssData": {
"attackComplexity": "LOW",
"attackVector": "NETWORK",
"availabilityImpact": "HIGH",
"baseScore": 8.1,
"baseSeverity": "HIGH",
"confidentialityImpact": "NONE",
"integrityImpact": "HIGH",
"privilegesRequired": "LOW",
"scope": "UNCHANGED",
"userInteraction": "NONE",
"vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:H",
"version": "3.1"
},
"exploitabilityScore": 2.8,
"impactScore": 5.2,
"source": "security-advisories@github.com",
"type": "Secondary"
}
],
"ssvcV203": [
{
"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"ssvcData": {
"id": "CVE-2026-55762",
"options": [
{
"exploitation": "none"
},
{
"automatable": "no"
},
{
"technicalImpact": "total"
}
],
"role": "CISA Coordinator",
"timestamp": "2026-06-25T12:34:23.639307Z",
"version": "2.0.3"
}
}
]
},
"published": "2026-06-24T22:16:49.667",
"references": [
{
"source": "security-advisories@github.com",
"url": "https://github.com/RocketChat/Rocket.Chat/security/advisories/GHSA-8hhc-j325-rxqp"
}
],
"sourceIdentifier": "security-advisories@github.com",
"vulnStatus": "Deferred",
"weaknesses": [
{
"description": [
{
"lang": "en",
"value": "CWE-862"
}
],
"source": "security-advisories@github.com",
"type": "Secondary"
}
]
}
},
"vulnrichment": {
"containers": {
"adp": [
{
"metrics": [
{
"other": {
"content": {
"id": "CVE-2026-55762",
"options": [
{
"Exploitation": "none"
},
{
"Automatable": "no"
},
{
"Technical Impact": "total"
}
],
"role": "CISA Coordinator",
"timestamp": "2026-06-25T12:34:23.639307Z",
"version": "2.0.3"
},
"type": "ssvc"
}
}
],
"providerMetadata": {
"dateUpdated": "2026-06-25T12:34:27.912Z",
"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"shortName": "CISA-ADP"
},
"title": "CISA ADP Vulnrichment"
}
],
"cna": {
"affected": [
{
"product": "Rocket.Chat",
"vendor": "RocketChat",
"versions": [
{
"status": "affected",
"version": "\u003e= 8.5.0-rc.0, \u003c 8.5.1"
},
{
"status": "affected",
"version": "\u003e= 8.4.0-rc.0, \u003c 8.4.4"
},
{
"status": "affected",
"version": "\u003e= 8.3.0-rc.0, \u003c 8.3.6"
},
{
"status": "affected",
"version": "\u003e= 8.2.0-rc.0, \u003c 8.2.6"
},
{
"status": "affected",
"version": "\u003e= 8.1.0-rc.0, \u003c 8.1.6"
},
{
"status": "affected",
"version": "\u003e= 7.11.0-rc.0, \u003c 8.0.7"
},
{
"status": "affected",
"version": "\u003c 7.10.13"
}
]
}
],
"descriptions": [
{
"lang": "en",
"value": "Rocket.Chat is an open-source, secure, fully customizable communications platform. Prior to 8.5.1, 8.4.4, 8.3.6, 8.2.6, 8.1.6, 8.0.7, and 7.10.13, the POST /api/v1/fingerprint REST endpoint enforces authentication (authRequired: true) but performs no authorization check. Any authenticated user \u2014 including a standard user role account \u2014 can call this endpoint with {\"setDeploymentAs\": \"new-workspace\"} to permanently deregister the workspace from Rocket.Chat Cloud. This wipes all cloud credentials, removes the workspace license, breaks push notifications for all users, and requires manual re-registration to recover. This vulnerability is fixed in 8.5.1, 8.4.4, 8.3.6, 8.2.6, 8.1.6, 8.0.7, and 7.10.13."
}
],
"metrics": [
{
"cvssV3_1": {
"attackComplexity": "LOW",
"attackVector": "NETWORK",
"availabilityImpact": "HIGH",
"baseScore": 8.1,
"baseSeverity": "HIGH",
"confidentialityImpact": "NONE",
"integrityImpact": "HIGH",
"privilegesRequired": "LOW",
"scope": "UNCHANGED",
"userInteraction": "NONE",
"vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:H",
"version": "3.1"
}
}
],
"problemTypes": [
{
"descriptions": [
{
"cweId": "CWE-862",
"description": "CWE-862: Missing Authorization",
"lang": "en",
"type": "CWE"
}
]
}
],
"providerMetadata": {
"dateUpdated": "2026-06-24T21:08:01.271Z",
"orgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
"shortName": "GitHub_M"
},
"references": [
{
"name": "https://github.com/RocketChat/Rocket.Chat/security/advisories/GHSA-8hhc-j325-rxqp",
"tags": [
"x_refsource_CONFIRM"
],
"url": "https://github.com/RocketChat/Rocket.Chat/security/advisories/GHSA-8hhc-j325-rxqp"
}
],
"source": {
"advisory": "GHSA-8hhc-j325-rxqp",
"discovery": "UNKNOWN"
},
"title": "Rocket.Chat: Any Authenticated User Can Permanently Deregister Workspace from Rocket.Chat Cloud via Unprotected `/api/v1/fingerprint` Endpoint"
}
},
"cveMetadata": {
"assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
"assignerShortName": "GitHub_M",
"cveId": "CVE-2026-55762",
"datePublished": "2026-06-24T21:08:01.271Z",
"dateReserved": "2026-06-17T14:34:51.880Z",
"dateUpdated": "2026-06-24T21:08:01.271Z",
"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…