CVE-2026-54104 U.S. GAO EPDS and CBCA EDS client-based privilege escalation

High 8.7 Published Updated

Authenticated attackers can escalate privileges by manipulating the unverified epds_role_id parameter in GAO EPDS and CBCA EDS systems.

Exploited in the wild
Not known
Login needed
Any signed-in user
Attackable
Over the internet
Victim action needed
Not needed
Fix
None listed

What is CVE-2026-54104?

CVE-2026-54104 is a high-severity vulnerability in Civilian Board of Contract Appeals Electronic Docketing System (EDS), published on 18 Jun 2026. Any signed-in user can exploit it over the network, with no action from the victim.

Official description

The U.S. Government Accountability Office (GAO) Electronic Protest Docketing System (EPDS) and Civilian Board of Contract Appeals (CBCA) Electronic Docketing System (EDS) trusts client-provided values for the 'epds_role_id' parameter without verification, allowing a remote, authenticated attacker to escalate their own privileges.

Weakness: CWE-602

Which versions are affected by CVE-2026-54104?

How do I fix CVE-2026-54104?

No fix has been published for CVE-2026-54104 yet. Limit exposure of the affected software until one is available.

Is CVE-2026-54104 being exploited?

There is no known exploitation of CVE-2026-54104 in the wild and no public exploit code.

Sources

Also known as GHSA-768x-r5g5-79vc.

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