CVE-2026-42571 PUBLISHED

Privilege Escalation Attack affecting Pelican Web UI

Assigner: GitHub_M
Reserved: 28.04.2026 Published: 09.05.2026 Updated: 09.05.2026

Pelican is a platform for creating data federations. From versions 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, there is a a privilege escalation vulnerability affecting Pelican's Web User Interface (WebUI). This attack allows any user authenticated to the WebUI via OAuth to gain admin privileges under certain configurations. This issue has been patched in versions 7.21.5, 7.22.3, 7.23.3, and 7.24.2.

Metrics

CVSS 4.0

CVSS Vector: CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H
CVSS Score: 9

Exploitability Metrics		Vulnerable System Impact Metrics		Subsequent System Impact Metrics
Attack Vector	Network	Confidentiality	High	Confidentiality	High
Attack Complexity	Low	Integrity	High	Integrity	High
Attack Requirements	Present	Availability	High	Availability	High
Privileges Required	Low
User Interaction	None

CVSS 4.0

Product Status

Vendor	PelicanPlatform
Product	pelican
Versions	Version >= 7.21.0, < 7.21.5 is affected Version >= 7.22.0, < 7.22.3 is affected Version >= 7.23.0, < 7.23.3 is affected Version >= 7.24.0, < 7.24.2 is affected

References

Problem Types

CWE-863: Incorrect Authorization CWE