Which products and versions are affected by CVE-2026-87820?

Affected: CyberPanel versions >= 2.4.3. The full list is in the CVE brief.

Is CVE-2026-87820 being exploited in the wild?

It is not listed in any known-exploited vulnerabilities catalog.

Is CVE-2026-87820 in the CISA KEV catalog?

No, it is not currently listed in the CISA Known Exploited Vulnerabilities catalog.

Is there a public exploit for CVE-2026-87820?

No public exploit code is known.

Is there a fix for CVE-2026-87820?

Fixed versions are available, including CyberPanel 2.4.6.

How urgently should CVE-2026-87820 be patched?

Brandefense priority: routine patching, as no exploitation is known and its severity is moderate or low.

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Vulnerability Intelligence

CVE-2026-87820

Medium

Published Sep 9, 2026 · Updated Sep 16, 2026 · Also known as EUVD-2026-74846, GHSA-qmwq-9cc8-x6h2

Key Facts

Routine patching

CVE-2026-87820 is a medium-severity vulnerability (CVSS 6.9 v4) affecting CyberPanel.
It is not listed in any known-exploited vulnerabilities catalog. No public exploit code is known.
EPSS estimates a 0.9% probability of exploitation in the next 30 days.
Fixed versions are available, including CyberPanel 2.4.6.
Brandefense priority: routine patching, as no exploitation is known and its severity is moderate or low.

CVSS v4

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

EPSS (30-day exploit likelihood)

0.9%

Higher than 58.1% of all scored CVEs

Exploited in the wild

No known

Not in a known-exploited catalog

Public exploit code

None known

Get the full CVE-2026-87820 brief as a PDF

Every affected product and fixed release, exploitation status and a first 24 hours response checklist, emailed within minutes.

Description

CyberPanel versions 2.4.3 through 2.4.5 expose unauthenticated AI Scanner debugging endpoints that disclose administrator usernames, API-key prefixes, scan identifiers, target domains, and account metadata. Unauthenticated attackers can enumerate panel administrators and recent scanner activity to inventory multi-tenant installations and facilitate follow-on attacks.

Affected Products

2 affected entries in total

Product	Affected versions	Fixed in
CyberPanelCyberpanel	>= 2.4.3	2.4.6

Patched Releases

CyberPanel

2.4.6

Timeline

Publicly disclosed
Sep 9, 2026
Last updated
Sep 16, 2026

Weakness Type

CWE-200 Exposure of Sensitive Information to an Unauthorized Actor

References

FAQ

Common Questions.

CyberPanel versions 2.4.3 through 2.4.5 expose unauthenticated AI Scanner debugging endpoints that disclose administrator usernames, API-key prefixes, scan identifiers, target domains, and account metadata.
Affected: CyberPanel versions >= 2.4.3. The full list is in the CVE brief.
It is not listed in any known-exploited vulnerabilities catalog.
No, it is not currently listed in the CISA Known Exploited Vulnerabilities catalog.
No public exploit code is known.
Fixed versions are available, including CyberPanel 2.4.6.
Brandefense priority: routine patching, as no exploitation is known and its severity is moderate or low.

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