How severe is CVE-2026-54105?

CVE-2026-54105 has a CVSS 3.x base score of 5.3, rated medium severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is low, integrity none, and availability none.

Is CVE-2026-54105 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (22nd percentile), an estimate of the probability of exploitation in the next 30 days.

How do I fix CVE-2026-54105?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.

Does CVE-2026-54105 have an EU (EUVD) identifier?

Yes. CVE-2026-54105 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-37912.

When was CVE-2026-54105 published?

CVE-2026-54105 was published on 2026-06-18 and last updated on 2026-06-24.

CVE-2026-54105

CVE-2026-54105 is a medium-severity vulnerability with a CVSS 3.x base score of 5.3. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-639.

Key facts

Severity: Medium (CVSS 3.x base score 5.3)
CVSS v4: 6.9
EPSS exploit prediction: 0% (22nd percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2026-37912
Weakness: CWE-639
Published: 2026-06-18
Last modified: 2026-06-24

Description

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.

Frequently asked questions

What is CVE-2026-54105?: 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.
How severe is CVE-2026-54105?: CVE-2026-54105 has a CVSS 3.x base score of 5.3, rated medium severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is low, integrity none, and availability none.
Is CVE-2026-54105 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (22nd percentile), an estimate of the probability of exploitation in the next 30 days.
How do I fix CVE-2026-54105?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
Does CVE-2026-54105 have an EU (EUVD) identifier?: Yes. CVE-2026-54105 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-37912.
When was CVE-2026-54105 published?: CVE-2026-54105 was published on 2026-06-18 and last updated on 2026-06-24.

References

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