CVE-2026-40972
April 28, 2026, 8:11 p.m.
7.5
High
Description
An attacker on the same network as the remote application may be able to utilize a timing attack to discover information about the remote secret. In extreme circumstances this could result in the attacker determining the secret and uploading changed classes, thereby achieving remote code execution in the remote application.
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); DevTools remote secret comparison. Versions that are no longer supported are also affected per vendor advisory.
Product(s) Impacted
| Vendor | Product | Versions |
|---|---|---|
| Spring |
|
|
Weaknesses
Common security weaknesses mapped to this vulnerability.
CWE-208
Observable Timing Discrepancy
Two separate operations in a product require different amounts of time to complete, in a way that is observable to an actor and reveals security-relevant information about the state of the product, such as whether a particular operation was successful or not.
*CPE(s)
Affected systems and software identified for this CVE.
| Type | Vendor | Product | Version | Update | Edition | Language | Software Edition | Target Software | Target Hardware | Other Information |
|---|---|---|---|---|---|---|---|---|---|---|
| a | spring | spring_boot | 4.0.0-4.0.5 | / | / | / | / | / | / | / |
| a | spring | spring_boot | 3.5.0-3.5.13 | / | / | / | / | / | / | / |
| a | spring | spring_boot | 3.4.0-3.4.15 | / | / | / | / | / | / | / |
| a | spring | spring_boot | 3.3.0-3.3.18 | / | / | / | / | / | / | / |
| a | spring | spring_boot | 2.7.0-2.7.32 | / | / | / | / | / | / | / |
References
Tags
CVSS Score
CVSS Data - 3.1
- Attack Vector: ADJACENT_NETWORK
- Attack Complexity: HIGH
- Privileges Required: NONE
- Scope: UNCHANGED
- Confidentiality Impact: HIGH
- Integrity Impact: HIGH
- Availability Impact: HIGH
CVSS:3.1/AV:A/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
Timeline
Published: April 28, 2026, 12:16 a.m.
Last Modified: April 28, 2026, 8:11 p.m.
Last Modified: April 28, 2026, 8:11 p.m.
Status : Undergoing Analysis
CVE has been recently published to the CVE List and has been received by the NVD.
More infoSource
*Disclaimer: Some vulnerabilities do not have an associated CPE. To enhance the data, we use AI to infer CPEs based on CVE details. This is an automated process and might not always be accurate.