Description (CNA)
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.
Affected (CNA)
| Vendor / product | Versions |
|---|---|
| curl / curl | affected 8.18.0 before 8.20.1 |
| curl / curl | affected 6a3d0b6d631d5e9bec797306b5b41a9f440a088d before 56eca2afb4806f1032872fa97d1834b3c1385276 |
| curl / curl | affected 8.20.0; affected 8.19.0; affected 8.18.0 |
CWE
CWE-835
References
- https://curl.se/docs/CVE-2026-11352.json
- https://curl.se/docs/CVE-2026-11352.html
- https://hackerone.com/reports/3783438
ADP enrichment
No English description supplied.