How severe is CVE-2026-10854?

CVE-2026-10854 has a CVSS 3.x base score of 4.3, rated medium severity. It is exploitable over network with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is low, integrity none, and availability none.

Is CVE-2026-10854 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (7th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2026-10854?

CVE-2026-10854 affects Misp-project Misp. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2026-10854?

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

Does CVE-2026-10854 have an EU (EUVD) identifier?

Yes. CVE-2026-10854 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-34257.

When was CVE-2026-10854 published?

CVE-2026-10854 was published on 2026-06-04 and last updated on 2026-06-22.

CVE-2026-10854

CVE-2026-10854 is a medium-severity vulnerability in Misp-project Misp with a CVSS 3.x base score of 4.3. 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-200.

Key facts

Severity: Medium (CVSS 3.x base score 4.3)
CVSS v4: 5.3
EPSS exploit prediction: 0% (7th percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2026-34257
Weakness: CWE-200
Affected product: Misp-project Misp
Published: 2026-06-04
Last modified: 2026-06-22

Description

A visibility control issue in the event template creation workflow allowed non-site-admin users to access private galaxies belonging to other organisations. The event template builder loaded all enabled galaxies without applying organisation or distribution-based access restrictions, potentially exposing private galaxy metadata such as galaxy type and description to users who should not have visibility. The issue has been fixed by restricting galaxy queries for non-site-admin users to galaxies owned by the user’s organisation or galaxies with a non-private distribution setting. Site administrators retain visibility of all enabled galaxies.

Frequently asked questions

What is CVE-2026-10854?: A visibility control issue in the event template creation workflow allowed non-site-admin users to access private galaxies belonging to other organisations. The event template builder loaded all enabled galaxies without applying organisation or distribution-based access restrictions, potentially exposing private galaxy metadata such as galaxy type and description to users who should not have visibility. The issue has been fixed by restricting galaxy queries for non-site-admin users to galaxies owned by the user’s organisation or galaxies with a non-private distribution setting. Site administrators retain visibility of all enabled galaxies.
How severe is CVE-2026-10854?: CVE-2026-10854 has a CVSS 3.x base score of 4.3, rated medium severity. It is exploitable over network with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is low, integrity none, and availability none.
Is CVE-2026-10854 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (7th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2026-10854?: CVE-2026-10854 affects Misp-project Misp. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2026-10854?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
Does CVE-2026-10854 have an EU (EUVD) identifier?: Yes. CVE-2026-10854 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-34257.
When was CVE-2026-10854 published?: CVE-2026-10854 was published on 2026-06-04 and last updated on 2026-06-22.

References

https://github.com/MISP/MISP/commit/d3adfe1a097dd4b403364e9af34e208660eeec1a

Affected products (1)

cpe:2.3:a:misp-project:misp:*:*:*:*:*:*:*:*

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