CVE-2026-11352
Published: July 2, 2026Last modified: July 6, 2026
Description
An issue in curl’s QUIC UDP receive function allows a malicious HTTP/3 server to trigger a remote denial of service against a curl or libcurl client. Because the helper function discards zero-length UDP datagrams before counting them toward the per-call packet budget, a connected QUIC peer can continuously stream empty datagrams to indefinitely stall the client.
Status
| Product | Release | Package | Status |
|---|---|---|---|
| Alpaquita Linux | 23 LTS | curl | Fixed (8.21.0-r0) |
| Stream | curl | Fixed (8.21.0-r0) | |
| Hardened Containers | Stream | curl | Fixed (8.21.0-r0) |