CVE-2026-54103 U.S. GAO EPDS and CBCA EDS unauthenticated password change
Unauthenticated attackers can change arbitrary user passwords via an unprotected API endpoint, leading to account takeover.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2026-54103?
CVE-2026-54103 is a critical authentication bypass vulnerability in Civilian Board of Contract Appeals Electronic Docketing System (EDS), published on 18 Jun 2026. An attacker can exploit it over the internet without logging in, 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) does not authenticate password change requests to the '/update-profile/N' API endpoint. A remote, unauthenticated attacker could change an arbitrary user's password.
Weakness: CWE-306
Which versions are affected by CVE-2026-54103?
How do I fix CVE-2026-54103?
No fix has been published for CVE-2026-54103 yet. Limit exposure of the affected software until one is available.
Upgrade, and rotate credentials and sessions that may have been exposed. More about Authentication bypass.
Is CVE-2026-54103 being exploited?
There is no known exploitation of CVE-2026-54103 in the wild and no public exploit code.
Sources
Also known as GHSA-w9xh-mqg8-v8fv.