SEPTEMBER 14, 2026
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Case File

CVE-2026-80229

HIGH · CVSS 7.5 EPSS 0.90%

Source: NVD + CISA KEV + EPSS · Published 2026-09-06 · Last synced 2026-09-14

CyberRota Analysis

AI-Generated

OpenSSL is vulnerable due to a flaw in libcurl's multi interface, where pooled TLS connections can outlive their originating easy handles, resulting in a heap-use-after-free condition. This occurs when the easy handle is destroyed prematurely, leaving a dangling pointer that can be exploited during subsequent I/O or post-handshake operations. Organizations using OpenSSL in conjunction with libcurl should prioritize addressing this vulnerability to mitigate potential exploitation risks.

CVE
CVE-2026-80229
Severity
HIGH
CVSS
7.5
EPSS
0.90%
OpenSSL

Original NVD Description

When performing transfers via libcurl’s multi interface, pooled TLS connections can outlive their originating easy handles. In OpenSSL 3 provider configurations, libcurl attaches an allocated library context to the easy handle's state and passes it to OpenSSL without acquiring an ownership reference; destroying the easy handle prematurely frees this context while the active connection retains a dangling pointer, leading to a heap-use-after-free upon subsequent I/O or post-handshake operations.

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