CVE-2026-80231
High
Description
A flaw in libcurl makes it wrongly reuse an existing HTTPS connection setup for a given hostname even when using a different Native CA Store setting (`CURLSSLOPT_NATIVE_CA`) than when the connection was created.
SeverityHigh
CVSS7.5
Exploit probability—
ProductHaxx Curl
PublishedSep 6, 2026
First seenSep 6, 2026
Weakness typeCWE-488CWE-488
How to fix
Update
- haxx curl8.22.0 or later
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| haxx curl | 7.71.0 ≤ v < 8.22.0 | 8.22.0 |
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