Spring Boot accepts predictable temp directory without ownership verification

高 7.0CVE-2026-40973 · GHSA-wwpq-f5c3-7hvx · 28/04/2026 公開 · 24/07/2026 更新

要点

CVE-2026-40973 は org.springframework.boot:spring-boot, spring boot (vmware) に影響する深刻度「高」 (CVSS 7.0) の脆弱性です。
今後30日間に悪用される確率（EPSS）：0.14%（全脆弱性の 3.0% より高い）。
対処：3.5.14, 4.0.6, 3.3.19, 3.4.16 以降に更新してください。

パッケージ	影響を受けるバージョン	修正済みバージョン
org.springframework.boot:spring-boot Maven	`≥ 3.3.0, ≤ 3.3.18≥ 3.4.0, ≤ 3.4.15≥ 3.5.0, < 3.5.14≥ 4.0.0, < 4.0.6≤ 2.7.32`	`3.5.144.0.6`
spring boot vmware	`≥ 3.3.0, < 3.3.19≥ 3.4.0, < 3.4.16≥ 3.5.0, < 3.5.14≥ 4.0.0, < 4.0.6< 2.7.33`	`3.3.193.4.163.5.144.0.62.7.33`

概要

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.

NVD の説明

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.