Vulnerability Intelligence Report
Infinite loop in HTTP/2 transport when given bad SETTINGS_MAX_FRAME_SIZE in net/http/internal/http2 in golang.org/x/net
CVE-2026-33814
When processing HTTP/2 SETTINGS frames, transport will enter an infinite loop of writing CONTINUATION frames if it receives a SETTINGS_MAX_FRAME_SIZE with a value of 0.
No Active Exploit Signals
CVSS Base Score
7.5
HIGH
Exploitability:3.9
Impact Score:3.6
EPSS Probability:0.78%
Executive Threat Verdict
Evaluating...
Evaluating Threat Landscape...
Assessing known weaponization, exploitation telemetry, and federal advisories.
Attack Surface
—
Authentication
—
Weaponization
—
SSVC Action
—
Weaknesses (CWE)
CWE-835 ↗CWE-835: Loop with Unreachable Exit Condition ('Infinite Loop')
Affected Products & Versions
| Vendor | Product | Affected Versions |
|---|---|---|
| golang.org/x/net | golang.org/x/net/http2 | 0 < 0.53.0 (affected) |
| Go standard library | net/http | 0 < 1.25.10 (affected), 1.26.0-0 < 1.26.3 (affected) |
Threat Intelligence Signals
EPSS Score
0.781%
Identity & Timeline
| Status | PUBLISHED |
| Assigning Authority | Go Project · Vendor · USA |
| Reserved | 2026-03-23T20:35:32 |
| Published | 2026-05-07T19:41:17 |
| Last Updated | 2026-09-18T12:04:46 |
Community Chatter & Buzz