VDB
CVE-2026-18924
CVE-2026-18924
PUBLISHED
CVSS 9.1 CRITICAL
Reported by curl · Published September 6, 2026
A flaw in libcurl's handling of HTTP/2 Server Push streams, when the parent handle is set to share connections with other handles, can lead to use-after-free in the cleanup process.
Risk Scores
CVSS 3.1
9.1
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:H
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| curl | curl | 7.44.0, 8.15.0, 8.17.0 |
| curl | curl | ea7134ac874a66107e54ff93657ac565cf2ec4aa |
| curl | curl | 8.21.0, 8.20.0, 8.19.0 |
| curl | curl | 7.44.0, 7.58.0, 7.57.0 |
| curl | curl | |
| chainguard | curl | 0 |
| wolfi | curl | 0, 0, 0 |
| alpine | curl | 0, 0, 0 |
Timeline
- CVE Published
- Sep 2, 2026 PoC Published
- Sep 7, 2026 EPSS Score
- Sep 9, 2026 EPSS Score
- Sep 12, 2026 EPSS Score
- Sep 16, 2026 EPSS Score
- Sep 18, 2026 EPSS Score