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CVE-2026-80231

high CVSS 7.5 EPSS 0.9%

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.

Versions it affects

Software versions checked with the free lookup that CVE-2026-80231 applies to, and the release that fixes it where the sources name one.

curl 8.1.2 fixed in 8.14.2

At a glance

Severity
High
CVSS base score
7.5 out of 10
Known exploited
Not in CISA's catalogue of exploited vulnerabilities
EPSS
0.9% probability of exploitation in the next 30 days, higher than 58% of scored vulnerabilities
Weakness
CWE-488
Published
2026-09-06
NVD CVE.org

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