CVE-2026-4829 - Vulnerability Details - OpenCVE

Improper authentication in the external OAuth authentication flow in Devolutions Server 2026.1.11 and earlier allows an authenticated user to authenticate as other users, including administrators, via reuse of a session code from an external authentication flow.

No CVSS v4.0

Attack Vector Network

Attack Complexity Low

Privileges Required Low

Scope Unchanged

Confidentiality Impact Low

Integrity Impact Low

Availability Impact None

User Interaction None

No CVSS v3.0

No CVSS v2

This CVE is not in the KEV list.

No EPSS score available.

Exploitation none

Automatable no

Technical Impact partial

Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).

Vendor Product Default status Versions

Devolutions

Server

unaffected

Version	Status	Constraints
`0`	affected	≤ 2026.1.11

No data.

No data.

No data.

Project Subscriptions

No data.

Advisories

No advisories yet.

Fixes

Solution

No solution given by the vendor.

Workaround

No workaround given by the vendor.

References

Link	Providers
https://devolutions.net/security/advisories/DEVO-2026-0010

History

Wed, 01 Apr 2026 23:45:00 +0000

Type	Values Removed	Values Added
Description		Improper authentication in the external OAuth authentication flow in Devolutions Server 2026.1.11 and earlier allows an authenticated user to authenticate as other users, including administrators, via reuse of a session code from an external authentication flow.
Weaknesses		CWE-287
References		https://devolutions.net/security/advisories/DEVO-2026-0010
Metrics		cvssV3_1 `{'score': 5.4, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N'}` ssvc `{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}`

Projects

Sign in to view the affected projects.

MITRE

Status: PUBLISHED

Assigner: DEVOLUTIONS

Published: 2026-04-01T14:44:05.292Z

Updated: 2026-04-01T19:25:17.305Z

Reserved: 2026-03-25T14:10:42.907Z

Link: CVE-2026-4829

Vulnrichment

Updated: 2026-04-01T19:25:10.703Z

NVD

Status : Received

Published: 2026-04-01T16:23:51.547

Modified: 2026-04-01T20:16:28.043

Link: CVE-2026-4829

Redhat

No data.

OpenCVE Enrichment

No data.

Weaknesses

CWE-287

{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-4829", "assignerOrgId": "bfee16bd-18e6-446c-9a65-f5b2e3d89c23", "state": "PUBLISHED", "assignerShortName": "DEVOLUTIONS", "dateReserved": "2026-03-25T14:10:42.907Z", "datePublished": "2026-04-01T14:44:05.292Z", "dateUpdated": "2026-04-01T19:25:17.305Z"}, "containers": {"cna": {"providerMetadata": {"orgId": "bfee16bd-18e6-446c-9a65-f5b2e3d89c23", "shortName": "DEVOLUTIONS", "dateUpdated": "2026-04-01T14:44:05.292Z"}, "problemTypes": [{"descriptions": [{"lang": "en", "cweId": "CWE-287", "description": "CWE-287", "type": "CWE"}]}], "affected": [{"vendor": "Devolutions", "product": "Server", "versions": [{"status": "affected", "version": "0", "lessThanOrEqual": "2026.1.11", "versionType": "custom"}], "defaultStatus": "unaffected"}], "descriptions": [{"lang": "en", "value": "Improper authentication in the external OAuth authentication flow in Devolutions Server 2026.1.11 and earlier allows an authenticated user to authenticate as other users, including administrators, via reuse of a session code from an external authentication flow.", "supportingMedia": [{"type": "text/html", "base64": false, "value": "Improper authentication in the external OAuth authentication flow in Devolutions Server 2026.1.11 and earlier allows an authenticated user to authenticate as other users, including administrators, via reuse of a session code from an external authentication flow. <br>"}]}], "references": [{"url": "https://devolutions.net/security/advisories/DEVO-2026-0010"}], "source": {"discovery": "UNKNOWN"}, "x_generator": {"engine": "Vulnogram 1.0.1"}}, "adp": [{"metrics": [{"cvssV3_1": {"scope": "UNCHANGED", "version": "3.1", "baseScore": 5.4, "attackVector": "NETWORK", "baseSeverity": "MEDIUM", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N", "integrityImpact": "LOW", "userInteraction": "NONE", "attackComplexity": "LOW", "availabilityImpact": "NONE", "privilegesRequired": "LOW", "confidentialityImpact": "LOW"}}, {"other": {"type": "ssvc", "content": {"timestamp": "2026-04-01T19:24:46.618785Z", "id": "CVE-2026-4829", "options": [{"Exploitation": "none"}, {"Automatable": "no"}, {"Technical Impact": "partial"}], "role": "CISA Coordinator", "version": "2.0.3"}}}], "title": "CISA ADP Vulnrichment", "providerMetadata": {"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP", "dateUpdated": "2026-04-01T19:25:17.305Z"}}]}}

{"dataType": "CVE_RECORD", "containers": {"adp": [{"title": "CISA ADP Vulnrichment", "metrics": [{"cvssV3_1": {"scope": "UNCHANGED", "version": "3.1", "baseScore": 5.4, "attackVector": "NETWORK", "baseSeverity": "MEDIUM", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N", "integrityImpact": "LOW", "userInteraction": "NONE", "attackComplexity": "LOW", "availabilityImpact": "NONE", "privilegesRequired": "LOW", "confidentialityImpact": "LOW"}}, {"other": {"type": "ssvc", "content": {"id": "CVE-2026-4829", "role": "CISA Coordinator", "options": [{"Exploitation": "none"}, {"Automatable": "no"}, {"Technical Impact": "partial"}], "version": "2.0.3", "timestamp": "2026-04-01T19:24:46.618785Z"}}}], "providerMetadata": {"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP", "dateUpdated": "2026-04-01T19:25:10.703Z"}}], "cna": {"source": {"discovery": "UNKNOWN"}, "affected": [{"vendor": "Devolutions", "product": "Server", "versions": [{"status": "affected", "version": "0", "versionType": "custom", "lessThanOrEqual": "2026.1.11"}], "defaultStatus": "unaffected"}], "references": [{"url": "https://devolutions.net/security/advisories/DEVO-2026-0010"}], "x_generator": {"engine": "Vulnogram 1.0.1"}, "descriptions": [{"lang": "en", "value": "Improper authentication in the external OAuth authentication flow in Devolutions Server 2026.1.11 and earlier allows an authenticated user to authenticate as other users, including administrators, via reuse of a session code from an external authentication flow.", "supportingMedia": [{"type": "text/html", "value": "Improper authentication in the external OAuth authentication flow in Devolutions Server 2026.1.11 and earlier allows an authenticated user to authenticate as other users, including administrators, via reuse of a session code from an external authentication flow. <br>", "base64": false}]}], "problemTypes": [{"descriptions": [{"lang": "en", "type": "CWE", "cweId": "CWE-287", "description": "CWE-287"}]}], "providerMetadata": {"orgId": "bfee16bd-18e6-446c-9a65-f5b2e3d89c23", "shortName": "DEVOLUTIONS", "dateUpdated": "2026-04-01T14:44:05.292Z"}}}, "cveMetadata": {"cveId": "CVE-2026-4829", "state": "PUBLISHED", "dateUpdated": "2026-04-01T19:25:17.305Z", "dateReserved": "2026-03-25T14:10:42.907Z", "assignerOrgId": "bfee16bd-18e6-446c-9a65-f5b2e3d89c23", "datePublished": "2026-04-01T14:44:05.292Z", "assignerShortName": "DEVOLUTIONS"}, "dataVersion": "5.2"}