Privilege Escalation Vulnerability in Pelican WebUI
CVE-2026-42571

9CRITICAL

Key Information:

Vendor

Pelicanplatform

Status
Pelican
Vendor
CVE Published:
9 May 2026

What is CVE-2026-42571?

Pelican, a platform designed for creating data federations, has reported a vulnerability in its Web User Interface (WebUI) for several versions. This privilege escalation issue allows authenticated users accessing the WebUI via OAuth to potentially acquire administrative privileges depending on specific configuration settings. The vulnerability affects versions from 7.21.0 to before 7.21.5, 7.22.0 to before 7.22.3, 7.23.0 to before 7.23.3, and 7.24.0 to before 7.24.2. The issue has been addressed in subsequent releases, including versions 7.21.5, 7.22.3, 7.23.3, and 7.24.2.

Affected Version(s)

pelican >= 7.21.0, < 7.21.5 < 7.21.0, 7.21.5

pelican >= 7.22.0, < 7.22.3 < 7.22.0, 7.22.3

pelican >= 7.23.0, < 7.23.3 < 7.23.0, 7.23.3

References

https://github.com/PelicanPlatform/pelican/security/advis...
x_refsource_CONFIRM
https://github.com/PelicanPlatform/pelican/commit/7f73b9c...
x_refsource_MISC

CVSS V4

Score:
9
Severity:
CRITICAL
Confidentiality:
High
Integrity:
High
Availability:
High
Attack Vector:
Network
Attack Complexity:
Low
Attack Required:
Physical
Privileges Required:
Undefined
User Interaction:
None

Timeline

  • Vulnerability published

  • Vulnerability Reserved

.