CVE-2026-78669
A malicious HTTP/2 peer can cause excessive CPU consumption in the client or server by opening a…
- Risk score
- 59/100
- CVSS
- 7.5 v3.1
- Exploit chance (30 days)
- 0.6%
- Published
- 8 Oct 2026
Open in the live forecast Today's forecast
What to know
- What it is
- A malicious HTTP/2 peer can cause excessive CPU consumption in the client or server by opening a large number of streams and then sending many small SETTINGS frames containing SETTINGS_INITIAL_WINDOW_SIZE values.
- Affected
- See advisory
- Fix
- Apply the vendor's security update; see the linked advisory.
- Exploitation
- No known exploitation
Why it is Yellow
- CVSS 7.5 high
- Remotely exploitable without logging in
References
Original description
A malicious HTTP/2 peer can cause excessive CPU consumption in the client or server by opening a large number of streams and then sending many small SETTINGS frames containing SETTINGS_INITIAL_WINDOW_SIZE values.
Last activity 8 Oct 2026. Patch Forecast updates every hour.