CVE-2026-80229
⚠️ highSummary
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.
CVSS Score
7.5
High
EPSS Score
0.9
Exploit Probability
Published Date
2026-09-06
First Seen: 2026-09-07
📊 Relative Risk Intelligence
This CVE is Moderate Risk - more severe than 67.8% of all 358,566 vulnerabilities in our database.
#115,475
Above average severity
Severity Percentile
🎯 CISA SSVC Assessment Updated: Sep 8, 2026
🔍 Exploitation Status
None
No known exploits
⚙️ Automatable
YES
Can be exploited automatically
💥 Technical Impact
Partial
Limited system impact
🏆 Discovered By
Stanislav Fort (Aisle Research)
Daniel Stenberg (remediation developer)
SSVC data provided by
CISA
Last Modified
2026-09-15
Source
NVD 🔗
CVSS Vector 3.1
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
CWE IDs (Weakness Types)