Medium severity · published Feb 27, 2026
CVE-2026-3277
The OpenID Connect (OIDC) authentication configuration in PowerShell Universal before 2026.1.3 stores the OIDC client secret in cleartext in the .universal/authentication.ps1…
6.5
CVSS
0.2%
EPSS
No
On KEV
Description
The OpenID Connect (OIDC) authentication configuration in PowerShell
Universal before 2026.1.3 stores the OIDC client secret in cleartext in
the .universal/authentication.ps1 script, which allows an attacker with read access to that file to obtain the OIDC client credentials
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
Attack vector
Network
Complexity
Low
Privileges
Low
User interaction
None
Confidentiality
High
Integrity
None
Availability
None
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.2% · higher than 8% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
PU
PowerShell Universal · Devolutions
before 2026.1.3 · source: vendor, NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-3277
CVE.org
https://www.cve.org/CVERecord?id=CVE-2026-3277
Third Party Advisory
https://devolutions.net/security/advisories/DEVO-2026-0006
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