incomplete mTLS config matching in conn reuse
41Vexday Risk Score
No sign of exploitation. It has a public proof of concept.
ssvc Attendcvss 7.5epss 0.4%
from disclosure to weapon0 days
Published on NVDJul 3
1st PoCJun 26
exploitation probability
0.4%top 68% of all CVEs
observed exploitation
nono source reports it
1 public exploit(s)
libcurl would reuse a previously created connection even when some mTLS config
related option had been changed that should have prohibited reuse.
libcurl keeps previously used connections in a connection pool for subsequent
transfers to reuse if one of them matches the setup. However, some TLS
settings related to client certificates were left out from the configuration
match checks, making them match too easily. In particular options related to
the private key.
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N
Affected products
curl · curlpublic PoCs found — 1
githubgithub.com/0xBlackash/CVE-2026-8932★ 1⚠ Public resources, to assess the exposure of systems you control or are authorized to test. Test only with authorization.