Bug 2463332 (CVE-2026-40972) - CVE-2026-40972 Spring Boot: Spring Boot: Remote code execution via timing attack in DevTools remote secret comparison
Summary: CVE-2026-40972 Spring Boot: Spring Boot: Remote code execution via timing att...
Keywords:
Status: NEW
Alias: CVE-2026-40972
Product: Security Response
Classification: Other
Component: vulnerability
Version: unspecified
Hardware: All
OS: Linux
medium
medium
Target Milestone: ---
Assignee: Product Security DevOps Team
QA Contact:
URL:
Whiteboard:
Depends On: 2468011 2468012
Blocks:
TreeView+ depends on / blocked
 
Reported: 2026-04-28 00:02 UTC by OSIDB Bzimport
Modified: 2026-05-14 16:56 UTC (History)
56 users (show)

Fixed In Version:
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System ID Private Priority Status Summary Last Updated
Red Hat Product Errata RHSA-2026:17668 0 None None None 2026-05-14 16:56:29 UTC

Description OSIDB Bzimport 2026-04-28 00:02:25 UTC 
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.
Comment 3 errata-xmlrpc 2026-05-14 16:56:25 UTC 
This issue has been addressed in the following products:

  Red Hat build of Apache Camel 4.18.1 for Spring Boot 3.5.14

Via RHSA-2026:17668 https://access.redhat.com/errata/RHSA-2026:17668
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