CVE-2026-54104

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

HIGH
8.8
CVSS Score
Published: June 18, 2026 at 04:12 PM UTC
Updated: June 22, 2026 at 02:17 PM UTC
2 products affected across 2 vendorsElectronic Protest Docketing SystemElectronic Docketing System

Using Electronic Protest Docketing System (EPDS) by Government Accountability Office?

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Severity
HIGH8.8
Exploit prediction
EPSS 0.7%
SSVC
No known exploit

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.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

v < 2026-3-19
Vendor states this is fixed in 2026-3-19 (unaffected)
v < 2026-2-22
Vendor states this is fixed in 2026-2-22 (unaffected)

Remediation

No guide yet

No remediation guidance has been written for this CVE yet, and no fixed version or vendor advisory is recorded against it.

SSVC — Action Prioritization

SSVCNo known exploitNot automatableTotal impact

SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.

CVSS

8.8HIGHcisa-cg
Attack Vector
NETWORK
Complexity
LOW
Privileges
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
HIGH
Integrity
HIGH
Availability
HIGH
Vector?

Quick Info

StatusAWAITING ANALYSIS
CWE
CWE-602

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