CVE-2026-86415 (GCVE-0-2026-86415)

Vulnerability from cvelistv5 – Published: 2026-10-20 20:08 – Updated: 2026-10-30 11:51
VLAI
Title
auto client cert connection reuse mixup
Summary
libcurl's connection cache match function never considers the automatic client certificate option, so a cached, already authenticated Schannel connection can be handed to a transfer that got redirected to a different origin, even though the code explicitly switched off the auto client cert option for that transfer to prevent exactly this.
Severity
7.5 (High)
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N
SSVC
Exploitation: none Automatable: yes Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-10-30 11:50 UTC
CWE
Assigner
curl CNA under the redhat root
CNA scorecard D 46/100 over 59 records in the last 180 days details
References
Impacted products
Vendor Product Version CPE status
curl curl Affected: 8.22.0 , ≤ 8.22.0 (semver)
Affected: 8.21.0 , ≤ 8.21.0 (semver)
guessed Create a notification for this product.
Credits
Stanislav Fort (Aisle Research) Stefan Eissing
Show details on NVD website
To clipboard 

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