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EPSS 0.8%top 48%

CVE-2026-54103: CWE-306 Missing Authentication for Critical Function in Government Accountability Office Electronic Protest Docketing System (EPDS)

0
Critical
VulnerabilityCVE-2026-54103cvecve-2026-54103cwe-306
Published: 06/18/2026 (06/18/2026, 16:12:35 UTC)
Source: CVE Database V5
Vendor/Project: Government Accountability Office
Product: Electronic Protest Docketing System (EPDS)

Description

The U.S. Government Accountability Office (GAO) Electronic Protest Docketing System (EPDS) and Civilian Board of Contract Appeals (CBCA) Electronic Docketing System (EDS) does not authenticate password change requests to the '/update-profile/N' API endpoint. A remote, unauthenticated attacker could change an arbitrary user's password.

CVSS v3.1

Score 9.8critical

Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
High
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

AI-Powered Analysis

Machine-generated threat intelligence

AILast updated: 06/25/2026, 21:18:57 UTC

Technical Analysis

CVE-2026-54103 identifies a critical authentication bypass vulnerability in the GAO EPDS and CBCA EDS systems. Specifically, the '/update-profile/N' API endpoint that handles password change requests does not enforce authentication, enabling remote attackers without any privileges to change arbitrary user passwords. This flaw violates secure authentication practices (CWE-306) and can lead to full account compromise. The vulnerability has a CVSS 3.1 base score of 9.8, reflecting its ease of exploitation (network vector, no privileges required, no user interaction) and severe impact on confidentiality, integrity, and availability.

Potential Impact

An unauthenticated remote attacker can change any user's password, potentially gaining unauthorized access to user accounts. This compromises user confidentiality and integrity, and can disrupt availability by locking out legitimate users. The critical CVSS score of 9.8 reflects the high risk posed by this vulnerability.

Mitigation Recommendations

Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. No official fix or temporary workaround is currently documented. Until a patch is available, restrict access to the affected API endpoint if possible and monitor for suspicious activity related to password changes.

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Technical Details

Data Version
5.2
Assigner Short Name
cisa-cg
Date Reserved
2026-06-11T19:41:26.775Z
Cvss Version
3.1
State
PUBLISHED
Remediation Level
null

Threat ID: 6a341e85f198dc38c11fcf44

Added to database: 06/18/2026, 16:36:21 UTC

Last enriched: 06/25/2026, 21:18:57 UTC

Last updated: 08/02/2026, 19:17:59 UTC

Views: 90

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