CVE-2026-54103: CWE-306 Missing Authentication for Critical Function in Government Accountability Office Electronic Protest Docketing System (EPDS)
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.
AI Analysis
Technical Summary
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.
CVE-2026-54103: CWE-306 Missing Authentication for Critical Function in Government Accountability Office 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
Weaknesses
AI-Powered Analysis
Machine-generated threat intelligence
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.
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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