High severity · published Apr 1, 2026
CVE-2026-4828
Improper authentication in the OAuth login functionality in Devolutions Server 2026.1.11 and earlier allows a remote attacker with valid credentials to bypass multi-factor…
8.2
CVSS
0.3%
EPSS
No
On KEV
Description
Improper authentication in the OAuth login functionality in Devolutions Server 2026.1.11 and earlier allows a remote attacker with valid credentials to bypass multi-factor authentication via a crafted login request.
CVSS vector
CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:C/C:H/I:H/A:N
Attack vector
Network
Complexity
High
Privileges
Low
User interaction
None
Confidentiality
High
Integrity
High
Availability
None
Scope
Changed
Exploitation
Is it being used?
Exploit prediction (EPSS)0.3% · higher than 18% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
SE
Server · Devolutions
through 2026.1.11 · source: vendor
DS
Devolutions Server · Devolutions
before 2025.3.18.0; 2026.1.1.0 before 2026.1.12.0 · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-4828
CVE.org
https://www.cve.org/CVERecord?id=CVE-2026-4828
Vendor Advisory
https://devolutions.net/security/advisories/DEVO-2026-0010
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