CVE-2026-40973
Summary
| CVE | CVE-2026-40973 |
|---|---|
| State | PUBLISHED |
| Assigner | vmware |
| Source Priority | CVE Program / NVD first with legacy fallback |
| Published | 2026-04-28 00:16:24 UTC |
| Updated | 2026-04-30 14:25:36 UTC |
| 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. |
Risk And Classification
Primary CVSS: v3.1 7 HIGH from [email protected]
CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H
EPSS: 0.000140000 probability, percentile 0.024710000 (date 2026-04-28)
Problem Types: CWE-377 | CWE-377 CWE-377: Insecure Temporary File
| Version | Source | Type | Score | Severity | Vector |
|---|---|---|---|---|---|
| 3.1 | [email protected] | Secondary | 7 | HIGH | CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H |
| 3.1 | CNA | CVSS | 7 | HIGH | CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H |
CVSS v3.1 Breakdown
Attack Vector
LocalAttack Complexity
HighPrivileges Required
LowUser Interaction
NoneScope
UnchangedConfidentiality
HighIntegrity
HighAvailability
HighCVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H
NVD Known Affected Configurations (CPE 2.3)
| Type | Vendor | Product | Version | Update | Edition | Language |
|---|---|---|---|---|---|---|
| Application | Vmware | Spring Boot | All | All | All | All |
Vendor Declared Affected Products
| Source | Vendor | Product | Version | Platforms |
|---|---|---|---|---|
| CNA | Spring | Spring Boot | affected 4.0.0 4.0.6 custom | Not specified |
| CNA | Spring | Spring Boot | affected 3.5.0 3.5.14 custom | Not specified |
| CNA | Spring | Spring Boot | affected 3.4.0 3.4.16 custom | Not specified |
| CNA | Spring | Spring Boot | affected 3.3.0 3.3.19 custom | Not specified |
| CNA | Spring | Spring Boot | affected 2.7.0 2.7.33 custom | Not specified |
References
| Reference | Source | Link | Tags |
|---|---|---|---|
| spring.io/security/cve-2026-40973 | [email protected] | spring.io | Vendor Advisory |
| CVE Program record | CVE.ORG | www.cve.org | canonical |
| NVD vulnerability detail | NVD | nvd.nist.gov | canonical, analysis |
No vendor comments have been submitted for this CVE.
There are currently no legacy QID mappings associated with this CVE.