VDB
CVE-2026-92391
CVE-2026-92391
PUBLISHED
Reported by curl · Published October 20, 2026
A deeply nested multipart MIME structure constructed via the public API causes a stack overflow in libcurl during normal cleanup operations. An excessive recursion depth within `curl_mime_free` leads to unbounded stack frame allocation during structure traversal, ultimately crashing the host process.
EPSS 0.36% · 29.4th percentile
Risk Scores
EPSS Score
0.36%
29.4th percentile
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| curl | curl | 8.22.0, 8.21.0, 8.20.0 |
| curl | curl | 7.56.0, 8.22.0, 8.21.0 |
| alpine | curl | 0 |
Timeline
- CVE Published
- Oct 14, 2026 PoC Published
- Oct 21, 2026 EPSS Score
- Oct 24, 2026 EPSS Score
- Oct 25, 2026 EPSS Score
- Oct 27, 2026 EPSS Score