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Fencer Vulns
medium 4.7

CVE-2026-54106 json

U.S. GAO EPDS and CBCA EDS network access control bypass

published 2026-06-18 4 mo ago modified 2026-06-24 4 mo ago also EUVD-2026-37913

cvss
4.7
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 42%
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) do not validate X-Forwarded-For HTTP headers, allowing a remote attacker with compromised administrator credentials to bypass network access controls and log in.

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

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 4.7

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
Proof of concept is public
Automatable
no
Technical impact
partial
Assessed
4 mo ago

Exploit prediction

0.49% chance of exploitation in the next 30 days, higher than 42% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by version score vector
CNA 3.1 4.7 CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:L/I:L/A:L
CNA 4.0 5.1 CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N
CNA 4.0 5.1 CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:L/VI:L/VA:L/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-940 Improper Verification of Source of a Communication Channel

References

Sources

Fencer Vulns 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.