CVE-2026-40975

MEDIUM

Spring Boot <4.0.6 - Weak PRNG for Secrets

Title source: llm
STIX 2.1

Description

Values produced by ${random.value} are not suitable for use as secrets. ${random.uuid} is not affected. ${random.int} and ${random.long} should never be used for secrets as they are numeric values with a predictable range. 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); random value property source / weak PRNG for secrets. Versions that are no longer supported are also affected per vendor advisory.

Scores

CVSS v3 4.8
EPSS 0.0004
EPSS Percentile 10.4%
Attack Vector NETWORK
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:N

CISA SSVC

Vulnrichment
Exploitation none
Automatable no
Technical Impact partial

Details

CWE
CWE-330
Status published
Products (5)
Spring/Spring Boot 2.7.0 - 2.7.33
Spring/Spring Boot 3.3.0 - 3.3.19
Spring/Spring Boot 3.4.0 - 3.4.16
Spring/Spring Boot 3.5.0 - 3.5.14
Spring/Spring Boot 4.0.0 - 4.0.6
Published Apr 28, 2026
Tracked Since Apr 28, 2026