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GHSA-2gw9-c2r2-f5qf

HighCVSS 8.8 / 10
Published Apr 21, 2026·Last modified Apr 21, 2026
Affected Components(0)

No affected components available

Description

Impact

Any authenticated user can immediately obtain full administrative control of the entire Neko instance (member management, room settings, broadcast control, session termination, etc.). This results in a complete compromise of the instance.

Patches

The vulnerability has been patched in the following releases:

Users should upgrade to v3.0.11 or later (for the 3.0 branch) or v3.1.2 or later.

Workarounds

If upgrading is not immediately possible, the following mitigations can reduce risk:

  • Restrict access to trusted users only (avoid granting accounts to untrusted parties)
  • Run the instance only when needed; avoid leaving it continuously exposed
  • Disable or restrict access to the /api/profile endpoint if feasible
  • Monitor for suspicious privilege changes or unexpected administrative actions

Note: These are temporary mitigations and do not fully eliminate the vulnerability. Upgrading is strongly recommended.

Credits

Neko thanks @blitzkrieg-patch for responsibly disclosing this vulnerability and reaching out directly. This contribution helped strengthen the project, and the whole community benefits from it.

Risk Scores
Base Score
8.8

The vulnerability can be exploited over the network without needing physical access. It is easy for an attacker to exploit this vulnerability. An attacker needs basic access or low-level privileges. No user interaction is needed for the attacker to exploit this vulnerability. The impact is confined to the system where the vulnerability exists. There is a high impact on the confidentiality of the information. There is a high impact on the integrity of the data. There is a high impact on the availability of the system.

Threat Intelligence
8.1

Exploitation activity has been observed. Apply available patches or mitigations urgently.

EPSS
0.44%

The exploit probability is very low. The vulnerability is unlikely to be exploited in the next 30 days.

Exploit
Not available

We did not find any exploit available. Neither in GitHub repositories nor in the Exploit-Database.

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High severity
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