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.
Affected packages
Versions sourced from the GitHub Security Advisory.
| Package | Affected versions | Patched versions |
|---|---|---|
org.springframework.boot:spring-bootMaven | >= 4.0.0, < 4.0.6 | 4.0.6 |
org.springframework.boot:spring-bootMaven | >= 3.5.0, < 3.5.14 | 3.5.14 |
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
1Patches
0No patches discovered yet.
Vulnerability mechanics
AI mechanics synthesis has not run for this CVE yet.
References
3- github.com/advisories/GHSA-wwpq-f5c3-7hvxghsaADVISORY
- nvd.nist.gov/vuln/detail/CVE-2026-40973ghsaADVISORY
- spring.io/security/cve-2026-40973nvdVendor AdvisoryWEB
News mentions
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