GHSA-8rq8-f59m-9cjg
Severity by source
AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
MITM network position plus three simultaneous non-default configuration prerequisites raise AC to H; MITM capability enables both read and inject, so I:H applies.
AV:N/AC:H/PR:N/UI:R/S:U/C:L/I:N/A:N
Primary rating from Vendor (CNA).
CVSS VectorVendor
Lifecycle Timeline
5Description PRE-NVD
Articles & Coverage 1
AnalysisAI
Certificate validation bypass in libcurl (curl 8.9.1 through 8.21.0) with the wolfSSL TLS backend allows a network-positioned attacker to intercept encrypted communications by exploiting a post-callback CA store reinstatement bug. When an application uses CURLOPT_SSL_CTX_FUNCTION to install a custom trust store at connection time, libcurl silently overwrites that callback-selected store with the previously cached CA bundle, causing certificates that the callback explicitly rejected to be accepted without error. …
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Attack ChainAIDerived
Hypothetical attack flow derived from CVE metadata
Vulnerability AssessmentAI
| Exploitation | Three conditions must hold simultaneously: (1) curl/libcurl must be compiled and running with the wolfSSL TLS backend - not the default on most Linux distributions or macOS, which ship OpenSSL or GnuTLS builds; (2) CA caching must be enabled within the wolfSSL integration layer; (3) the application must register a CURLOPT_SSL_CTX_FUNCTION callback and use it to replace the SSL context's trust store with a custom bundle. … Additional conditions and limiting factors are described in the full assessment. |
| Risk Assessment | The vendor-assigned CVSS 7.5 (AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N) overstates attacker convenience: AV:N and AC:L imply broad unauthenticated network exploitability, but exploitation actually requires three non-default concurrent conditions - wolfSSL as the TLS backend, CA caching enabled, and active use of CURLOPT_SSL_CTX_FUNCTION - none of which represent a default curl deployment. … Full risk analysis with EPSS, KEV, and SSVC signal comparison available after sign-in. |
| Exploit Scenario | Full exploit scenario with step-by-step reproduction available after sign-in. |
| Remediation | Upgrade curl/libcurl to the patched release documented at https://curl.se/docs/vuln-8.21.0.html; the curl project's security advisory at https://curl.se/docs/CVE-2026-82208.html provides authoritative fix guidance. … Detailed patch versions, workarounds, and compensating controls in full report. |
Recommended ActionAI
Within 24 hours, identify whether your organization uses libcurl with wolfSSL backend and CURLOPT_SSL_CTX_FUNCTION custom CA store callbacks; document findings and escalation path for any identified systems. …
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Threat intelligence, references, and detailed analysis are available after sign-in.
Stack-based buffer overflow in the Curl_sasl_create_digest_md5_message function in lib/curl_sasl.c in curl and libcurl 7
The sanitize_cookie_path function in cURL and libcurl 7.31.0 through 7.41.0 does not properly calculate an index, which
When doing HTTP(S) transfers, libcurl might erroneously use the read callback (`CURLOPT_READFUNCTION`) to ask for data t
When curl < 7.84.0 saves cookies, alt-svc and hsts data to local files, it makes the operation atomic by finalizing the
Curl_smtp_escape_eob in lib/smtp.c in curl 7.54.1 to and including curl 7.60.0 has a heap-based buffer overflow that mig
1. Rated high severity (CVSS 7.5), this vulnerability is remotely exploitable, no authentication required, low attack co
A cleartext transmission of sensitive information vulnerability exists in curl <v7.88.0 that could cause HSTS functional
A path traversal vulnerability exists in curl <8.0.0 SFTP implementation causes the tilde (~) character to be wrongly re
A vulnerability in input validation exists in curl <8.0 during communication using the TELNET protocol may allow an atta
curl's HTTP proxy connection reuse mechanism fails to validate credential changes, allowing an attacker to intercept or
A double-close vulnerability exists in libcurl when tearing down connection channels after threaded name resolution, cau
An improper authentication vulnerability exists in curl 7.33.0 to and including 7.82.0 which might allow reuse OAUTH2-au
Same weakness CWE-295 – Improper Certificate Validation
View allSame technique Information Disclosure
View allVendor StatusVendor
SUSE
Severity: Moderate| Product | Status |
|---|---|
| SLES15-SP5-CHOST-BYOS-SAP-CCloud | Not-Affected |
| SLES15-SP6-CHOST-BYOS | Not-Affected |
| SLES15-SP6-CHOST-BYOS-Aliyun | Not-Affected |
| SLES15-SP6-CHOST-BYOS-Azure | Not-Affected |
| SLES15-SP6-CHOST-BYOS-EC2 | Not-Affected |
| SLES15-SP6-CHOST-BYOS-GCE | Not-Affected |
| SLES15-SP6-CHOST-BYOS-GDC | Not-Affected |
| SLES15-SP6-CHOST-BYOS-SAP-CCloud | Not-Affected |
| SLES15-SP7-CHOST-BYOS-Aliyun | Not-Affected |
| SLES15-SP7-CHOST-BYOS-Azure | Not-Affected |
| SLES15-SP7-CHOST-BYOS-EC2 | Not-Affected |
| SLES15-SP7-CHOST-BYOS-GCE | Not-Affected |
| SLES15-SP7-CHOST-BYOS-GDC | Not-Affected |
| SLES15-SP7-CHOST-BYOS-SAP-CCloud | Not-Affected |
| SUSE Linux Enterprise Desktop 15 SP7 | Not-Affected |
| SUSE Linux Enterprise High Performance Computing 12 | Not-Affected |
| SUSE Linux Enterprise Micro 5.3 | Not-Affected |
| SUSE Linux Enterprise Micro 5.4 | Not-Affected |
| SUSE Linux Enterprise Micro 5.5 | Not-Affected |
| SUSE Linux Enterprise Module for Basesystem 15 SP7 | Not-Affected |
| SUSE Linux Enterprise Server 15 SP7 | Not-Affected |
| SUSE Linux Enterprise Server 16.0 | Not-Affected |
| SUSE Linux Enterprise Server 16.1 | Not-Affected |
| SUSE Linux Enterprise Server for SAP Applications 15 SP7 | Not-Affected |
| SUSE Linux Enterprise Server for SAP applications 16.0 | Not-Affected |
| SUSE Linux Enterprise Server for SAP applications 16.1 | Not-Affected |
| SUSE Linux Micro 6.0 | Not-Affected |
| SUSE Linux Micro 6.1 | Not-Affected |
| SUSE Linux Micro 6.2 | Not-Affected |
| openSUSE Leap 16.0 | Not-Affected |
| SLES15-SP3-CHOST-BYOS-Aliyun | Not-Affected |
| SLES15-SP3-CHOST-BYOS-Azure | Not-Affected |
| SLES15-SP3-CHOST-BYOS-EC2 | Not-Affected |
| SLES15-SP3-CHOST-BYOS-GCE | Not-Affected |
| SLES15-SP3-CHOST-BYOS-SAP-CCloud | Not-Affected |
| SLES15-SP4-CHOST-BYOS | Not-Affected |
| SLES15-SP4-CHOST-BYOS-Aliyun | Not-Affected |
| SLES15-SP4-CHOST-BYOS-Azure | Not-Affected |
| SLES15-SP4-CHOST-BYOS-EC2 | Not-Affected |
| SLES15-SP4-CHOST-BYOS-GCE | Not-Affected |
| SLES15-SP4-CHOST-BYOS-SAP-CCloud | Not-Affected |
| SLES15-SP5-CHOST-BYOS-Aliyun | Not-Affected |
| SLES15-SP5-CHOST-BYOS-Azure | Not-Affected |
| SLES15-SP5-CHOST-BYOS-EC2 | Not-Affected |
| SLES15-SP5-CHOST-BYOS-GCE | Not-Affected |
| SLES15-SP5-CHOST-BYOS-GDC | Not-Affected |
| SUSE Linux Enterprise High Performance Computing 12 SP5 | Not-Affected |
| SUSE Linux Enterprise High Performance Computing 15 SP4-LTSS | Not-Affected |
| SUSE Linux Enterprise High Performance Computing 15 SP5 | Not-Affected |
| SUSE Linux Enterprise High Performance Computing 15 SP5-LTSS | Not-Affected |
| SUSE Linux Enterprise Installer Updates 15 SP4 | Not-Affected |
| SUSE Linux Enterprise Installer Updates 15 SP5 | Not-Affected |
| SUSE Linux Enterprise Module for Basesystem 15 SP4 | Not-Affected |
| SUSE Linux Enterprise Module for Basesystem 15 SP5 | Not-Affected |
| SUSE Linux Enterprise Module for Basesystem 15 SP6 | Not-Affected |
| SUSE Linux Enterprise Server 11 SP4 LTSS EXTREME CORE | Not-Affected |
| SUSE Linux Enterprise Server 12 SP5 | Not-Affected |
| SUSE Linux Enterprise Server 12 SP5-LTSS | Not-Affected |
| SUSE Linux Enterprise Server 15 SP4 | Not-Affected |
| SUSE Linux Enterprise Server 15 SP4-LTSS | Not-Affected |
| SUSE Linux Enterprise Server 15 SP5 | Not-Affected |
| SUSE Linux Enterprise Server 15 SP5-LTSS | Not-Affected |
| SUSE Linux Enterprise Server 15 SP6 | Not-Affected |
| SUSE Linux Enterprise Server 15 SP6-LTSS | Not-Affected |
| SUSE Linux Enterprise Server LTSS Extended Security 12 SP5 | Not-Affected |
| SUSE Linux Enterprise Server for SAP Applications 12 SP5 | Not-Affected |
| SUSE Linux Enterprise Server for SAP Applications 15 SP4 | Not-Affected |
| SUSE Linux Enterprise Server for SAP Applications 15 SP5 | Not-Affected |
| SUSE Linux Enterprise Server for SAP Applications 15 SP6 | Not-Affected |
| SUSE CaaS Platform 3.0 | Not-Affected |
| SUSE CaaS Platform 4.0 | Not-Affected |
| SUSE Enterprise Storage 6 | Not-Affected |
| SUSE Enterprise Storage 7 | Not-Affected |
| SUSE Enterprise Storage 7.1 | Not-Affected |
| SUSE Linux Enterprise Desktop 11 SP3 | Not-Affected |
| SUSE Linux Enterprise Desktop 11 SP4 | Not-Affected |
| SUSE Linux Enterprise Desktop 12 | Not-Affected |
| SUSE Linux Enterprise Desktop 12 SP1 | Not-Affected |
| SUSE Linux Enterprise Desktop 12 SP2 | Not-Affected |
| SUSE Linux Enterprise Desktop 12 SP3 | Not-Affected |
| SUSE Linux Enterprise Desktop 15 | Not-Affected |
| SUSE Linux Enterprise Desktop 15 SP1 | Not-Affected |
| SUSE Linux Enterprise Desktop 15 SP2 | Not-Affected |
| SUSE Linux Enterprise Desktop 15 SP3 | Not-Affected |
| SUSE Linux Enterprise Desktop 15 SP4 | Not-Affected |
| SUSE Linux Enterprise Desktop 15 SP5 | Not-Affected |
| SUSE Linux Enterprise Desktop 15 SP6 | Not-Affected |
| SUSE Linux Enterprise High Performance Computing 12 SP1 | Not-Affected |
| SUSE Linux Enterprise High Performance Computing 12 SP2 | Not-Affected |
| SUSE Linux Enterprise High Performance Computing 12 SP3 | Not-Affected |
| SUSE Linux Enterprise High Performance Computing 15 | Not-Affected |
| SUSE Linux Enterprise High Performance Computing 15 SP1 | Not-Affected |
| SUSE Linux Enterprise High Performance Computing 15 SP1-ESPOS | Not-Affected |
| SUSE Linux Enterprise High Performance Computing 15 SP1-LTSS | Not-Affected |
| SUSE Linux Enterprise High Performance Computing 15 SP2 | Not-Affected |
| SUSE Linux Enterprise High Performance Computing 15 SP2-ESPOS | Not-Affected |
| SUSE Linux Enterprise High Performance Computing 15 SP2-LTSS | Not-Affected |
| SUSE Linux Enterprise High Performance Computing 15 SP3 | Not-Affected |
| SUSE Linux Enterprise High Performance Computing 15 SP3-ESPOS | Not-Affected |
| SUSE Linux Enterprise High Performance Computing 15 SP3-LTSS | Not-Affected |
| SUSE Linux Enterprise High Performance Computing 15 SP4 | Not-Affected |
| SUSE Linux Enterprise High Performance Computing 15 SP4-ESPOS | Not-Affected |
| SUSE Linux Enterprise High Performance Computing 15 SP5-ESPOS | Not-Affected |
| SUSE Linux Enterprise High Performance Computing 15-ESPOS | Not-Affected |
| SUSE Linux Enterprise High Performance Computing 15-LTSS | Not-Affected |
| SUSE Linux Enterprise Micro 5.0 | Not-Affected |
| SUSE Linux Enterprise Micro 5.1 | Not-Affected |
| SUSE Linux Enterprise Micro 5.2 | Not-Affected |
| SUSE Linux Enterprise Module for Basesystem 15 | Not-Affected |
| SUSE Linux Enterprise Module for Basesystem 15 SP1 | Not-Affected |
| SUSE Linux Enterprise Module for Basesystem 15 SP2 | Not-Affected |
| SUSE Linux Enterprise Module for Basesystem 15 SP3 | Not-Affected |
| SUSE Linux Enterprise Point of Sale 11 SP3 | Not-Affected |
| SUSE Linux Enterprise Point of Sale 12 SP2-CLIENT | Not-Affected |
| SUSE Linux Enterprise Real Time 15 SP2 | Not-Affected |
| SUSE Linux Enterprise Real Time 15 SP3 | Not-Affected |
| SUSE Linux Enterprise Real Time 15 SP4 | Not-Affected |
| SUSE Linux Enterprise Server 11 SP3 | Not-Affected |
| SUSE Linux Enterprise Server 11 SP3-LTSS | Not-Affected |
| SUSE Linux Enterprise Server 11 SP4 | Not-Affected |
| SUSE Linux Enterprise Server 11 SP4-LTSS | Not-Affected |
| SUSE Linux Enterprise Server 12 | Not-Affected |
| SUSE Linux Enterprise Server 12 SP1 | Not-Affected |
| SUSE Linux Enterprise Server 12 SP1-LTSS | Not-Affected |
| SUSE Linux Enterprise Server 12 SP2 | Not-Affected |
| SUSE Linux Enterprise Server 12 SP2-BCL | Not-Affected |
| SUSE Linux Enterprise Server 12 SP2-ESPOS | Not-Affected |
| SUSE Linux Enterprise Server 12 SP2-LTSS | Not-Affected |
| SUSE Linux Enterprise Server 12 SP3 | Not-Affected |
| SUSE Linux Enterprise Server 12 SP3-BCL | Not-Affected |
| SUSE Linux Enterprise Server 12 SP3-ESPOS | Not-Affected |
| SUSE Linux Enterprise Server 12 SP3-LTSS | Not-Affected |
| SUSE Linux Enterprise Server 12-LTSS | Not-Affected |
| SUSE Linux Enterprise Server 15 | Not-Affected |
| SUSE Linux Enterprise Server 15 SP1 | Not-Affected |
| SUSE Linux Enterprise Server 15 SP1-BCL | Not-Affected |
| SUSE Linux Enterprise Server 15 SP1-LTSS | Not-Affected |
| SUSE Linux Enterprise Server 15 SP2 | Not-Affected |
| SUSE Linux Enterprise Server 15 SP2-BCL | Not-Affected |
| SUSE Linux Enterprise Server 15 SP2-LTSS | Not-Affected |
| SUSE Linux Enterprise Server 15 SP3 | Not-Affected |
| SUSE Linux Enterprise Server 15 SP3-BCL | Not-Affected |
| SUSE Linux Enterprise Server 15 SP3-LTSS | Not-Affected |
| SUSE Linux Enterprise Server 15-LTSS | Not-Affected |
| SUSE Linux Enterprise Server for Raspberry Pi 12 SP2 | Not-Affected |
| SUSE Linux Enterprise Server for SAP Applications 11 SP3 | Not-Affected |
| SUSE Linux Enterprise Server for SAP Applications 11 SP4 | Not-Affected |
| SUSE Linux Enterprise Server for SAP Applications 12 | Not-Affected |
| SUSE Linux Enterprise Server for SAP Applications 12 SP1 | Not-Affected |
| SUSE Linux Enterprise Server for SAP Applications 12 SP2 | Not-Affected |
| SUSE Linux Enterprise Server for SAP Applications 12 SP3 | Not-Affected |
| SUSE Linux Enterprise Server for SAP Applications 15 | Not-Affected |
| SUSE Linux Enterprise Server for SAP Applications 15 SP1 | Not-Affected |
| SUSE Linux Enterprise Server for SAP Applications 15 SP2 | Not-Affected |
| SUSE Linux Enterprise Server for SAP Applications 15 SP3 | Not-Affected |
| SUSE Linux Enterprise Software Development Kit 11 SP3 | Not-Affected |
| SUSE Linux Enterprise Software Development Kit 11 SP4 | Not-Affected |
| SUSE Linux Enterprise Software Development Kit 12 | Not-Affected |
| SUSE Linux Enterprise Software Development Kit 12 SP1 | Not-Affected |
| SUSE Linux Enterprise Software Development Kit 12 SP2 | Not-Affected |
| SUSE Linux Enterprise Software Development Kit 12 SP3 | Not-Affected |
| SUSE Linux Enterprise Software Development Kit 12 SP5 | Not-Affected |
| SUSE Manager Proxy 4.0 | Not-Affected |
| SUSE Manager Proxy 4.1 | Not-Affected |
| SUSE Manager Proxy 4.2 | Not-Affected |
| SUSE Manager Proxy 4.3 | Not-Affected |
| SUSE Manager Proxy LTS 4.3 | Not-Affected |
| SUSE Manager Retail Branch Server 4.0 | Not-Affected |
| SUSE Manager Retail Branch Server 4.1 | Not-Affected |
| SUSE Manager Retail Branch Server 4.2 | Not-Affected |
| SUSE Manager Retail Branch Server 4.3 | Not-Affected |
| SUSE Manager Retail Branch Server LTS 4.3 | Not-Affected |
| SUSE Manager Server 4.0 | Not-Affected |
| SUSE Manager Server 4.1 | Not-Affected |
| SUSE Manager Server 4.2 | Not-Affected |
| SUSE Manager Server 4.3 | Not-Affected |
| SUSE Manager Server LTS 4.3 | Not-Affected |
| SUSE OpenStack Cloud 7 | Not-Affected |
| SUSE OpenStack Cloud 8 | Not-Affected |
| SUSE OpenStack Cloud Crowbar 8 | Not-Affected |
| openSUSE Leap 15.3 | Not-Affected |
| openSUSE Leap 15.4 | Not-Affected |
| openSUSE Leap 15.5 | Not-Affected |
| openSUSE Leap 15.6 | Not-Affected |
| openSUSE Leap Micro 5.2 | Not-Affected |
| openSUSE Leap Micro 5.3 | Not-Affected |
| openSUSE Leap Micro 5.4 | Not-Affected |
| openSUSE Leap Micro 5.5 | Not-Affected |
| SLES-CHOST-BYOS-Aliyun | Not-Affected |
| SLES-CHOST-BYOS-Azure | Not-Affected |
| SLES-CHOST-BYOS-EC2 | Not-Affected |
| SLES-CHOST-BYOS-GCE | Not-Affected |
| SLES-CHOST-BYOS-GDC | Not-Affected |
| SLES-CHOST-BYOS-SAP-CCloud | Not-Affected |
| bci/bci-base:16.0 bci/gcc bci/gcc:15 bci/golang bci/golang:1.23 bci/golang:1.23-openssl bci/golang:1.25 bci/golang:1.25-openssl bci/golang:1.26 bci/kiwi bci/kiwi:10 bci/node:18 bci/node:20 bci/node:22 bci/node:24-micro bci/nodejs bci/openjdk bci/openjdk:11 bci/openjdk:17 bci/openjdk:21 bci/python bci/python:3 bci/ruby bci/ruby:2 bci/spack bci/spack:0.23 containers/open-webui-mcpo:0 containers/open-webui-pipelines:0 containers/open-webui:0 containers/python:3.11 containers/python:3.9 kiwi-templates-Minimal kiwi-templates-Minimal-Cloud-sap kiwi-templates-Minimal-MS-HyperV-sap kiwi-templates-Minimal-VMware-sap kiwi-templates-Minimal-kvm-and-xen-sap rancher/seedimage-builder rancher/seedimage-builder/5.3 suse/hpc/warewulf4-x86_64/sle-hpc-node suse/ltss/sle15.3/sle15 suse/ltss/sle15.4/sle15 suse/ltss/sle15.5/sle15 suse/ltss/sle15.6/sle15 suse/manager/4.3/proxy-httpd suse/manager/4.3/proxy-salt-broker suse/manager/5.0/x86_64/proxy-httpd suse/manager/5.0/x86_64/proxy-salt-broker suse/manager/5.0/x86_64/server suse/multi-linux-manager/5.1/x86_64/proxy-httpd suse/multi-linux-manager/5.1/x86_64/proxy-salt-broker suse/multi-linux-manager/5.1/x86_64/server suse/multi-linux-manager/5.2/x86_64/monitoring-alertmanager suse/multi-linux-manager/5.2/x86_64/monitoring-blackbox_exporter suse/multi-linux-manager/5.2/x86_64/monitoring-prometheus suse/multi-linux-manager/5.2/x86_64/proxy-httpd suse/multi-linux-manager/5.2/x86_64/server suse/nginx suse/nginx:1.21 suse/sle-micro-rancher/5.2 suse/sle-micro-rancher/5.3 suse/sle-micro-rancher/5.4 suse/sle-micro/5.1/toolbox suse/sle-micro/5.2/toolbox suse/sle-micro/5.3/toolbox suse/sle-micro/5.4/toolbox suse/sle-micro/5.5/toolbox suse/sle-micro/base-5.5 suse/sle15 suse/sle15:15.3 suse/sle15:15.4 suse/sle15:15.5 suse/sle15:15.6 suse/sles-16.1-kubevirt-minimal suse/sles/15.3/libguestfs-tools:0.45.0 suse/sles/15.4/libguestfs-tools:0.49.0 suse/sles/15.4/virt-handler:0.49.0 suse/sles/15.5/cdi-cloner:1.55.0 suse/sles/15.5/cdi-importer:1.55.0 suse/sles/15.5/cdi-uploadserver:1.55.0 suse/sles/15.5/libguestfs-tools:0.58.0 suse/sles/15.5/virt-handler:0.58.0 suse/sles/15.5/virt-launcher:0.58.0 suse/sles/15.6/cdi-cloner:1.58.0 suse/sles/15.6/cdi-importer:1.58.0 suse/sles/15.6/cdi-uploadserver:1.58.0 suse/sles/15.6/libguestfs-tools:1.1.1 suse/sles/15.6/virt-handler:1.1.1 suse/sles/15.6/virt-launcher:1.1.1 suse/sles/15.7/cdi-cloner:1.58.0 suse/sles/15.7/cdi-importer:1.58.0 suse/sles/15.7/cdi-uploadserver:1.58.0 suse/sles/15.7/libguestfs-tools:1.5.0 suse/sles/15.7/virt-handler:1.5.0 suse/sles/15.7/virt-launcher:1.5.0 suse/sles/16.0/cdi-cloner:1.64 suse/sles/16.0/cdi-cloner:1.65 suse/sles/16.0/cdi-importer:1.64 suse/sles/16.0/cdi-importer:1.65 suse/sles/16.0/cdi-uploadserver:1.64 suse/sles/16.0/cdi-uploadserver:1.65 suse/sles/16.0/toolbox | Not-Affected |
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External POC / Exploit Code
Leaving vuln.today
EUVD-2026-72152