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CVE-2026-23477

Rocket.chat privilege escalation

7.7 HIGHPublic exploitEPSS 0.35%
  1. Published14 Jan 2026

Description

Rocket.Chat is an open-source, secure, fully customizable communications platform. In Rocket.Chat versions up to 6.12.0, the API endpoint GET /api/v1/oauth-apps.get is exposed to any authenticated user, regardless of their role or permissions. This endpoint returns an OAuth application, as long as the user knows its ID, including potentially sensitive fields such as client_id and client_secret. This vulnerability is fixed in 6.12.0.

CVSS 3.1 breakdown

Attack vectorNetwork
Attack complexityLow
Privileges requiredLow
User interactionNone
ScopeChanged
ConfidentialityHigh
IntegrityNone
AvailabilityNone
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:N/A:N

Affected products

Rocket.chat< 6.12.0

Remediation

Fixed in
Rocket.chat≥ 6.12.0

References

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Frequently asked

Is CVE-2026-23477 being actively exploited?

CVE-2026-23477 is not in the CISA KEV catalog. A public exploit reference exists, so treat it as exploitable. Its EPSS exploit probability is 0.35%.

How severe is CVE-2026-23477?

CVE-2026-23477 has a CVSS 3.1 base score of 7.7, rated high. EPSS estimates a 0.35% probability of exploitation.

Which products are affected by CVE-2026-23477?

Affected products include Rocket.chat.

How do I fix CVE-2026-23477?

Upgrade affected software to a fixed version, for example Rocket.chat 6.12.0 or later, then confirm no affected versions remain in your inventory.

How Secuno handles this

Secuno correlates vulnerabilities like CVE-2026-23477 against the real software inventory on every managed device, as each hourly inventory arrives. Rather than a static severity, each match is scored in context: exploit availability, EPSS, the asset's exposure, and business criticality decide where it lands in the queue. If an affected version is present anywhere across your portfolio, it surfaces automatically with a prioritised remediation path.

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Data from the NVD, CISA KEV catalog and FIRST EPSS. CVSS 3.1 base score shown where available.