CVE catalog
CVE-2026-40974
Spring Boot's Cassandra auto-configuration does not perform hostname verification when establishing an SSL connection to Cassandra. Affected: Spring Boot 4.0.0–4.0.5 (fix 4.0.6), 3.5.0–3.5.13 (fix 3.
- Severity
- Medium · CVSS 6.4
CVSS:3.1/AV:A/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:H - Published
- Source
- [NVD] · [CVE record]
- EPSS
- 0.18% · Oct 27, 2026
A flaw was found in Spring Boot's Cassandra auto-configuration. This vulnerability allows an adjacent attacker to bypass hostname verification during SSL (Secure Sockets Layer) connection establishment to Cassandra. This could enable a man-in-the-middle attack, potentially leading to unauthorized information disclosure, data tampering, or denial of service. Spring Boot: Cassandra: Spring Boot: Security bypass in Cassandra SSL connections The CVSS score(s) listed for this vulnerability do not reflect the associated product's status, and are included for informational purposes to better understand the severity of this vulnerability.
Vulnerable and fixed packages
Distribution-reported package versions and fixes. These do not depend on matching against the OpenFactory package catalog.
| Distribution | Package | Release | Version | Status |
|---|---|---|---|---|
| Cpe | spring_boot | Not reported | 2.7.33 | fixed |
| Cpe | spring_boot | Not reported | 3.3.19 | fixed |
| Cpe | spring_boot | Not reported | 3.4.16 | fixed |
| Cpe | spring_boot | Not reported | 3.5.14 | fixed |
| Cpe | spring_boot | Not reported | 4.0.6 | fixed |
Fixed-version evidence
| Distribution | Package | Type | Release | Fixed version | Urgency | Origin | Bugs |
|---|---|---|---|---|---|---|---|
| Cpe | spring_boot | cpe | Not reported | 2.7.33 | Not reported | Not reported | Not reported |
| Cpe | spring_boot | cpe | Not reported | 3.3.19 | Not reported | Not reported | Not reported |
| Cpe | spring_boot | cpe | Not reported | 3.4.16 | Not reported | Not reported | Not reported |
| Cpe | spring_boot | cpe | Not reported | 3.5.14 | Not reported | Not reported | Not reported |
| Cpe | spring_boot | cpe | Not reported | 4.0.6 | Not reported | Not reported | Not reported |
OpenFactory catalog packages
No matching packages in this catalog.
Observed:
References
- [https://nvd.nist.gov/vuln/detail/CVE-2026-40974]
- [https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-40974.json]
- [https://wid.cert-bund.de/.well-known/csaf/white/2026/wid-sec-w-2026-1263.json]
[CERT-Bund public advisories] · [FIRST EPSS] · [National Vulnerability Database (NVD)] · [Red Hat security advisories and VEX]