CVE-2026-82208
High
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.
SeverityHigh
CVSS7.5
Exploit probability—
ProductHaxx Curl
PublishedSep 6, 2026
First seenSep 6, 2026
Weakness typeCWE-295CWE-295
How to fix
Update
- haxx curl8.22.0 or later
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| haxx curl | 8.9.1 ≤ v < 8.22.0 | 8.22.0 |
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