Link following in Spring Integration - CVE-2026-59311
Published: August 28, 2026
Vulnerability identifier: #VU146212
CSH Severity: Low
CVSS v4: 6.1 [CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:N/VC:N/VI:H/VA:H/SC:N/SI:N/SA:N]
CVE-ID: CVE-2026-59311
CWE-ID: CWE-59
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a remote user to overwrite files or disclose sensitive information.
The vulnerability exists due to improper handling of a predictable temporary directory symlink in Zip/UnZip transformers when processing archive transformation output on a host where /tmp/ziptransformer can be pre-created as a symlink. A remote user can pre-create /tmp/ziptransformer as a symlink to redirect output files and extracted contents to a directory of their choosing to overwrite files or disclose sensitive information.
The issue is exploitable only by a user on the same host, and exploitation must occur before the application starts.
Affected software
Spring Integration
Library Support for Spring
Library Support for Spring
How to mitigate CVE-2026-59311
Install security update from vendor's website.
Spring Integration - addressed in versions 6.4.13, 6.5.11, 7.0.5.1, 7.0.6, 7.1.0.1, 7.1.1
Library Support for Spring - update to 3.5.19
Library Support for Spring - update to 3.5.19