Bug 2463330 (CVE-2026-40973) - CVE-2026-40973 Spring Boot: Spring Boot: Arbitrary Code Execution and Session Hijacking via predictable temporary directory
Summary: CVE-2026-40973 Spring Boot: Spring Boot: Arbitrary Code Execution and Session...
Keywords:
Status: NEW
Alias: CVE-2026-40973
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: 2467990 2467991
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:
Clone Of:
Environment:
Last Closed:
Embargoed:

Attachments (Terms of Use)


Links
System ID Private Priority Status Summary Last Updated
Red Hat Product Errata RHSA-2026:17668 0 None None None 2026-05-14 16:56:27 UTC

Description OSIDB Bzimport 2026-04-28 00:02:18 UTC 
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.
Comment 3 errata-xmlrpc 2026-05-14 16:56:23 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
Note You need to log in before you can comment on or make changes to this bug.