CVE-2026-82208
Discovered by AISLEPUBLISHEDCWE-295
Description
With the wolfSSL backend, when CA caching is enabled and an `CURLOPT_SSL_CTX_FUNCTION` callback replaces the trust store, libcurl can silently reinstall the cached store after the callback returns. A certificate trusted by the cached store but rejected by the callback-selected store is then incorrectly accepted.
CVSS Base Scores
CVSS v3.1(Primary)
4.8CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:N
Affected Products
| Vendor | Product | Version | Status |
|---|---|---|---|
| curl | curl | 8.9.1 | affected |
| curl | curl | 8.15.0 | affected |
| curl | curl | 8.17.0 | affected |
| curl | curl | 8.21.0 | affected |
| curl | curl | 0f2876b2c33f6784a27b6f7345bd8cd95b46352a | affected |
| curl | curl | 8.21.0 | affected |
| curl | curl | 8.20.0 | affected |
| curl | curl | 8.19.0 | affected |
| curl | curl | 8.18.0 | affected |
| curl | curl | 8.17.0 | affected |
| curl | curl | 8.16.0 | affected |
| curl | curl | 8.15.0 | affected |
| curl | curl | 8.14.1 | affected |
| curl | curl | 8.14.0 | affected |
| curl | curl | 8.13.0 | affected |
| curl | curl | 8.12.1 | affected |
| curl | curl | 8.12.0 | affected |
| curl | curl | 8.11.1 | affected |
| curl | curl | 8.11.0 | affected |
| curl | curl | 8.10.1 | affected |
| curl | curl | 8.10.0 | affected |
| curl | curl | 8.9.1 | affected |
Credits
- Stanislav Fort (Aisle Research)(finder)
- Stefan Eissing(remediation developer)