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GHSA-f44p-c7w9-7xr7
No affected components available
Summary
The gateway accepted unbounded concurrent unauthenticated WebSocket upgrades before allocating them to an authenticated session budget.
Impact
An unauthenticated network attacker could consume socket and worker capacity and disrupt WebSocket availability for legitimate clients.
Affected Component
src/gateway/server-http.ts, src/gateway/server/preauth-connection-budget.ts
Fixed Versions
- Affected:
<= 2026.3.24 - Patched:
>= 2026.3.28 - Latest stable
2026.3.28contains the fix.
Fix
Fixed by commit cb5f7e201f (gateway: cap concurrent pre-auth websocket upgrades).
Discovered by：Topsec AlphaLab (wang dong)
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.
Limited exploitation activity has been observed. Close monitoring and planned remediation are recommended.
The exploit probability is very low. The vulnerability is unlikely to be exploited in the next 30 days.
We did not find any exploit available. Neither in GitHub repositories nor in the Exploit-Database.
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