When configured to use an SSL bundle, Spring Boot's RabbitMQ auto-configuration does not perform hostname verification when connecting to the RabbitMQ broker.
Affected: Spring Boot 4.0.0–4.0.5 (fix 4.0.6), 3.5.0–3.5.13 (fix 3.5.14) per vendor advisory.
{
"osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/40xxx/CVE-2026-40971.json",
"cwe_ids": [
"CWE-295"
],
"unresolved_ranges": [
{
"extracted_events": [
{
"introduced": "4.0.0"
},
{
"fixed": "4.0.6"
},
{
"introduced": "3.5.0"
},
{
"fixed": "3.5.14"
}
],
"source": "AFFECTED_FIELD"
}
],
"cna_assigner": "vmware"
}