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Fencer Intel
medium 5.3

CVE-2026-54105 json

U.S. GAO EPDS and CBCA EDS user information disclosure

published 4mo ago modified 4mo ago also EUVD-2026-37912

cvss
5.3
version 3.1, CNA
cisa kev
Not listed
not in CISA's catalog
epss
0.5%
EPSS 0.5% chance of exploitation in 30 days, percentile 43%
public exploits
0
none known

Summary

The U.S. Government Accountability Office (GAO) Electronic Protest Docketing System (EPDS) and Civilian Board of Contract Appeals (CBCA) Electronic Docketing System (EDS) expose sensitive account information through the 'update-profile/' API endpoint. A remote, unauthenticated attacker can submit a request containing an arbitrary 'user_id' parameter and receive a JSON response containing account-specific information, including the associated email address.

Patch / fix

  • Government Accountability Office Electronic Protest Docketing System (EPDS) 2026-02-22
  • Civilian Board of Contract Appeals Electronic Docketing System (EDS) 2026-03-19

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Vendor advisories

What the vendors themselves say about their products: affected, fixed or not affected, and what to do.

cisa vex VA-26-169-01 updated cvss 5.3

U.S. GAO EPDS and CBCA EDS multiple vulnerabilities

  • Civilian Board of Contract Appeals Electronic Docketing System (EDS) <2026-03-19 Government Accountability Office Electronic Protest Docketing System (EPDS) <2026-02-22
    affected: vendor fix
  • Civilian Board of Contract Appeals Electronic Docketing System (EDS) 2026-03-19 Government Accountability Office Electronic Protest Docketing System (EPDS) 2026-02-22
    fixed: vendor fix

From CISA ICS and IT advisories (CSAF, https://github.com/cisagov/CSAF), a U.S. Government work; changed: reduced to products, statuses and remediations. CISA notification · csaf

CISA SSVC

Exploitation
none
Automatable
yes
Technical impact
partial
Assessed
4mo ago

Exploit prediction

0.51% chance of exploitation in the next 30 days, higher than 43% of all scored CVEs (FIRST EPSS, 2026-11-11).

CVSS scores

assigned by version score vector
CNA 4.0 6.9 CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N
CNA 3.1 5.3 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
CNA 4.0 6.9 CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

Affected products

  • Government Accountability Office Electronic Protest Docketing System (EPDS)
  • Civilian Board of Contract Appeals Electronic Docketing System (EDS)

Classification

Weakness
  • CWE-639 Authorization Bypass Through User-Controlled Key

References

Sources

Fencer Intel keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.