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CVE-2025-14017 is an unsynchronized shared-state vulnerability in libcurl's legacy non-Windows LDAP backend affecting curl versions 7.17.0 through 8.17.0. During multithreaded LDAPS transfers, TLS option changes intended for one transfer can inadvertently change global settings and affect other concurrently configured transfers. In particular, disabling certificate verification for one transfer may unintentionally disable verification in other threads, weakening TLS authentication. Builds using OpenLDAP or WinLDAP and the curl command-line tool are not affected. The issue was fixed in curl 8.18.0.
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A TLS configuration isolation flaw in libcurl's multithreaded LDAPS transfers can cause one thread's TLS settings to affect other concurrently configured transfers. Disabling certificate verification in one transfer may unintentionally disable it in others, compromising confidentiality and integrity. The advisory rates the vulnerability Medium, with a CVSS v3 base score of 6.3, and recommends updating curl and related packages to version 1:8.22.0-1+e1 or later.
A medium-severity libcurl flaw affecting multithreaded LDAPS/TLS transfers. TLS option changes, including disabling certificate verification for one transfer, can inadvertently apply globally to concurrent transfers.
A vulnerability referenced by the AlmaLinux 9.2 TuxCare local security-check advisory. The content provides no technical vulnerability details.
A vulnerability in curl/libcurl addressed by the Huawei EulerOS SA-2026-3408 security advisory; no technical flaw type is provided.
Query your assets running an affected version, and investigate the blast radius.
Every observed campaign linking this CVE to a named adversary.
Malware families riding this exploit, with evidence and IOCs.
YARA, Sigma, Snort, and vendor rules, auto-deployed to your SIEM.
Cross-references every affected SKU, including bundled OEM variants.
Community discussion across Reddit, Mastodon, and other social sources.