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CVE-2026-40974

41
FAUCET Score

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 3.5.14), 3.4.0–3.4.15 (fix 3.4.16), 3.3.0–3.3.18 (fix 3.3.19), 2.7.0–2.7.32 (fix 2.7.33); Cassandra SSL auto-configuration. Versions that are no longer supported are also affected per vendor advisory.

First published: Apr 27, 2026Last modified: Apr 28, 2026

Impacted Technologies

VendorProductVersion(s)CPE
>= 2.7.0, < 2.7.33CPE matchmatch criteria
cpe:2.3:a:vmware:spring_boot:*:*:*:*:*:*:*:*
>= 3.3.0, < 3.3.19CPE matchmatch criteria
cpe:2.3:a:vmware:spring_boot:*:*:*:*:*:*:*:*
>= 3.4.0, < 3.4.16CPE matchmatch criteria
cpe:2.3:a:vmware:spring_boot:*:*:*:*:*:*:*:*
>= 3.5.0, < 3.5.14CPE matchmatch criteria
cpe:2.3:a:vmware:spring_boot:*:*:*:*:*:*:*:*
>= 4.0.0, < 4.0.6CPE matchmatch criteria
cpe:2.3:a:vmware:spring_boot:*:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.1

5.0MEDIUM

CVSS:3.1/AV:A/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:L

Attack Vector
ADJACENT_NETWORK
Attack Complexity
HIGH
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
LOW
Integrity Impact
LOW
Availability Impact
LOW
Exploitability Score
1.6
Impact Score
3.4
CvssVersion
3.1

Exploit Intelligence

EPSS Score
0.18%
Probability of exploitation in next 30 days
EPSS Percentile
8.0%
Percentile rank of EPSS score among Peer Group
As of 2026-07-25
Model: v2026.06.15
This CVE's current EPSS score of 0.0018 is in the 0th percentile among its peer group of 36,833 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.1 Reddit, 0.3 Bluesky, 0.3 Mastodon, and 2.4 GitHub mentions.

Media Mentions

The average CVE in this peer group has 0.3 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Patch Available

Vendor Patches (2)

mavenpatch availablevia ghsa
Product: org.springframework.boot:spring-boot-cassandraFixed in: 4.0.6
mavenpatch availablevia ghsa
Product: org.springframework.boot:spring-boot-cassandraFixed in: 3.5.14

Vendor Advisories (1)

mavenGHSA-mqvw-jfmh-93qqmedium

Spring Boot's Cassandra SSL auto-configuration disables TLS hostname verification

Apr 28, 2026

References

spring.io / security/cve-2026-40974
Vendor Advisory