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High severity7.0NVD Advisory· Published Apr 28, 2026· Updated Apr 30, 2026

CVE-2026-40973

CVE-2026-40973

Description

A local attacker on the same host as the application may be able to take control of the directory used by ApplicationTemp. When server.servlet.session.persistent is set to true and the attack persists across application restarts, this may allow the attacker to read session information and hijack authenticated users or deploy a gadget chain and execute code as the application's user.

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); predictable temp directory / ApplicationTemp ownership verification. Versions that are no longer supported are also affected per vendor advisory.

AI Insight

LLM-synthesized narrative grounded in this CVE's description and references.

Affected packages

Versions sourced from the GitHub Security Advisory.

PackageAffected versionsPatched versions
org.springframework.boot:spring-bootMaven
>= 4.0.0, < 4.0.64.0.6
org.springframework.boot:spring-bootMaven
>= 3.5.0, < 3.5.143.5.14
org.springframework.boot:spring-bootMaven
>= 3.4.0, <= 3.4.15—
org.springframework.boot:spring-bootMaven
>= 3.3.0, <= 3.3.18—
org.springframework.boot:spring-bootMaven
<= 2.7.32—

Affected products

23

Patches

Vulnerability mechanics

References

3

News mentions

0

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