medium 6.3

CVE-2025-14017 json

broken TLS options for threaded LDAPS

published 2026-01-08 10 mo ago modified 2026-09-15 55 d ago also EUVD-2026-1581 , GHSA-jh4h-2cg6-889h , JLSEC-2026-427

cvss: 6.3; version 3.1, CNA
cisa kev: Not listed; not in CISA's catalog
epss: 0.1%; EPSS 0.1% chance of exploitation in 30 days, percentile 1%
public exploits: 0; none known

When doing multi-threaded LDAPS transfers (LDAP over TLS) with libcurl, changing TLS options in one thread would inadvertently change them globally and therefore possibly also affect other concurrently setup transfers.

Disabling certificate verification for a specific transfer could unintentionally disable the feature for other threads as well.

Patch / fix

fixed in 3 distros 7

julia CURL_jll 8.20.0+0
julia LibCURL_jll 8.18.0+0
curl curl 8.14.2, 8.16.1, 8.18.0

debian ubuntu red hat suse opensuse alpine azure linux

curl Debian 14 8.18.0~rc2-1

debian advisories DEBIAN-CVE-2025-14017

curl Ubuntu 22.04 LTS 7.81.0-1ubuntu1.22
curl Ubuntu 24.04 LTS 8.5.0-2ubuntu10.7
curl Ubuntu 25.10 8.14.1-2ubuntu1.1
curl Ubuntu Pro 14.04 LTS 7.35.0-1ubuntu2.20+esm19
curl Ubuntu Pro 16.04 LTS 7.47.0-1ubuntu2.19+esm15
curl Ubuntu Pro 18.04 LTS 7.58.0-2ubuntu3.24+esm7
curl Ubuntu Pro 20.04 LTS 7.68.0-1ubuntu2.25+esm2

ubuntu advisories UBUNTU-CVE-2025-14017

Ubuntu security data © Canonical Ltd., from https://github.com/canonical/ubuntu-security-notices via OSV; changed: normalised to fixed package versions per release. CC BY-SA 4.0

curl hummingbird 1 8.23.0-0.1.hum1
libcurl hummingbird 1 8.23.0-0.1.hum1
libcurl-minimal hummingbird 1 8.23.0-0.1.hum1
curl hummingbird 1 8.22.0-1.1.hum1
libcurl hummingbird 1 8.22.0-1.1.hum1
libcurl-minimal hummingbird 1 8.22.0-1.1.hum1
curl hummingbird 1 8.19.0-3.hum1
libcurl hummingbird 1 8.19.0-3.hum1

red hat advisories RHSA-2026:82895 RHSA-2026:77255 RHSA-2026:6893

curl SLE Micro 5.5, SLE Micro 5.4, SLE Micro 5.3 8.14.1-150400.5.77.1
curl Linux Micro 6.0 8.14.1-4.1
curl SLE Module for Basesystem 15 SP7 8.14.1-150700.7.11.1
curl Linux Micro 6.1 8.14.1-slfo.1.1_5.1
curl SLES 16.0, Linux Micro 6.2, SLES for SAP applications 16.0 8.14.1-160000.4.1
curl-mini SLES for SAP applications 16.0, SLES 16.0 8.14.1-160000.4.1
curl SLE Micro 5.2 8.14.1-150200.4.100.1
curl openSUSE Leap 15.6 8.14.1-150600.4.37.1

suse advisories SUSE-SU-2026:0508-1 SUSE-SU-2026:20347-1 SUSE-SU-2026:0221-1 SUSE-SU-2026:20358-1 SUSE-SU-2026:20082-1 SUSE-SU-2026:20110-1

curl openSUSE Leap 16.0 8.14.1-160000.4.1
curl openSUSE Tumbleweed 8.18.0-1.1

opensuse advisories openSUSE-SU-2026:20031-1 openSUSE-SU-2026:10017-1

curl Alpine 3.24, Alpine 3.23 8.18.0-r0

alpine advisories ALPINE-CVE-2025-14017

Alpine secdb © Alpine Linux, from https://secdb.alpinelinux.org via OSV; changed: normalised to fixed package versions per release. CC BY-SA 4.0

curl Azure Linux 3.0 8.11.1-5
cmake Azure Linux 3.0 3.30.3-11
cmake CBL-Mariner 2.0 3.21.4-21
curl CBL-Mariner 2.0 8.8.0-8

azure linux advisories AZL-73676 AZL-73736 AZL-73740 AZL-73743

Azure Linux vulnerability data, Copyright (c) Microsoft Corporation, from https://github.com/microsoft/AzureLinuxVulnerabilityData via OSV, under the MIT licence; changed: normalised to fixed package versions per release. MIT

Vendor advisories

What the vendors themselves say about their products: affected, fixed or not affected, and what to do.

red hat product security vex CVE-2025-14017 updated 2026-11-07 cvss 4.8

curl: curl: Security bypass due to global TLS option changes in multi-threaded LDAPS transfers

Red Hat Confidential Compute Attestation build-of-trustee/trustee-rhel9, openshift-sandboxed-containers/osc-rhel9-operator, openshift-sandboxed-containers/osc-operator-bundle, openshift-sandboxed-containers/osc-podvm-builder-rhel9, openshift-sandboxed-containers/osc-podvm-payload-rhel9, confidential-compute-attestation-tech-preview/trustee-rhel9 Red Hat Logging Subsystem for Red Hat OpenShift openshift-logging/vector-rhel9, openshift-logging/fluentd-rhel9, openshift-logging/eventrouter-rhel9, openshift-logging/logging-view-plugin-rhel9, openshift-logging/cluster-logging-rhel9-operator, openshift-logging/log-file-metric-exporter-rhel9, +1 more Red Hat OpenShift Service Mesh 2 openshift-service-mesh/pilot-rhel8, openshift-service-mesh/grafana-rhel8, openshift-service-mesh/proxyv2-rhel9, openshift-service-mesh/istio-cni-rhel8, openshift-service-mesh/ratelimit-rhel8, openshift-service-mesh/istio-rhel8-operator, +2 more Red Hat Enterprise Linux 6 curl, libcurl Red Hat Enterprise Linux 7 curl, libcurl Red Hat Enterprise Linux 8 curl, libcurl, libcurl-minimal
affected: workaround, no fix available “Fix deferred”
Red Hat Enterprise Linux 9 curl, rust, cargo, clippy, libcurl, rustfmt, +14 more
affected: workaround, no fix available, no fix planned “Will not fix”
Red Hat Enterprise Linux 10 curl, rust, snphost, s390utils, trustee-guest-components Red Hat JBoss Core Services curl Red Hat OpenShift Container Platform 4 openshift4/recert-rhel9, openshift/ose-rhel-coreos-8, openshift/ose-rhel-coreos-9 Red Hat OpenShift Dev Spaces devspaces/code-rhel9 Red Hat Trusted Profile Analyzer rhtpa/rhtpa-trustification-service-rhel9
affected: workaround, no fix available “Fix deferred”
Red Hat OpenShift AI (RHOAI) rhoai/odh-core-bff-rhel9, rhoai/odh-dashboard-rhel9, rhoai/odh-mod-arch-maas-rhel9, rhoai/odh-mod-arch-automl-rhel9, rhoai/odh-mod-arch-gen-ai-rhel9, rhoai/odh-mod-arch-mlflow-rhel9, +6 more
under investigation
Red Hat Hardened Images curl 8.19.0-3.hum1, curl 8.22.0-1.1.hum1, curl 8.23.0-0.1.hum1, libcurl 8.19.0-3.hum1, libcurl 8.22.0-1.1.hum1, libcurl 8.23.0-0.1.hum1, +3 more
fixed: vendor fix RHSA-2026:6893
Red Hat OpenShift AI (RHOAI) rhoai/odh-mlflow-rhel9, rhoai/odh-kube-rbac-proxy-rhel9, rhoai/odh-maas-controller-rhel9, rhoai/odh-mlflow-operator-rhel9, rhoai/odh-model-controller-rhel9, rhoai/odh-ogx-k8s-operator-rhel9, +14 more
not affected: vulnerable code not present

Red Hat CSAF VEX © Red Hat, Inc., from https://security.access.redhat.com/data/csaf/v2/vex/; changed: reduced to product statuses and remediations. CC BY 4.0 · csaf

CISA SSVC

Exploitation: none
Automatable: no
Technical impact: total
Assessed: 6 mo ago (2026-04-29)

Exploit prediction

0.11% chance of exploitation in the next 30 days, higher than 1% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by	version	score	vector
CISA ADP	3.1	6.3	CVSS:3.1/AV:L/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:N
CNA	3.1	6.3	CVSS:3.1/AV:L/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:N
OSV	3.1	6.3	CVSS:3.1/AV:L/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:N

Affected packages

ecosystem	package	affected	fixed in
julia	CURL_jll	<8.20.0+0	8.20.0+0
julia	LibCURL_jll	<8.18.0+0	8.18.0+0

Affected products

curl curl

Classification

Weakness

CWE-567 Unsynchronized Access to Shared Data in a Multithreaded Context

References

curl.se /docs/CVE-2025-14017.json
vendor-advisory, web
curl.se /docs/CVE-2025-14017.html
vendor-advisory, web
openwall.com /lists/oss-security/2026/01/07/3
mailing-list, third-party-advisory, web
github.com /advisories/GHSA-jh4h-2cg6-889h
web
nvd.nist.gov /vuln/detail/CVE-2025-14017
web

Sources

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.

CPEs and fixed versions use Anchore's correction of NVD's data: Added CPE configurations because not yet analyzed by NVD.

Summary