CVE-2026-59311 Fixed predictable /tmp/ziptransformer work directory enables symlink pre-creation
Local attackers can redirect file operations via symlink pre-creation in a predictable temp directory, potentially modifying files or escalating privileges.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- Available
What is CVE-2026-59311?
CVE-2026-59311 is a medium-severity path traversal vulnerability in Spring Integration, published on 27 Aug 2026. Any signed-in user can exploit it over the network, with no action from the victim.
Official description
A local unprivileged user on the same host can redirect all Zip/UnZip transformer output into a directory of their choosing by pre-creating /tmp/ziptransformer as a symlink before the application starts. Spring Integration 7.1.0 Spring Integration 7.0.0 - 7.0.5 Spring Integration 6.5.0 - 6.5.10 Spring Integration 6.4.0 - 6.4.12
Weakness: CWE-59
Which versions are affected by CVE-2026-59311?
It affects 1 product.
Products include Vmware Spring Integration.
How do I fix CVE-2026-59311?
Upgrade to a fixed version.
Upgrade, and resolve every user-supplied path against an allowed base folder before opening it. More about Path traversal.
Is CVE-2026-59311 being exploited?
There is no known exploitation of CVE-2026-59311 in the wild and no public exploit code.
Other vulnerabilities in Spring Integration
- CVE-2026-59324 fluxTransform shared RequestMessageHolder causes cross-message header leakage under async fluxFunction
- CVE-2026-59307 Deserialization allow-list silently bypassed: setBeanClassLoader replaces deserializer but mapper keeps stale reference
- CVE-2026-40987 Spring Integration File Support: FTP/SFTP/SMB server can write arbitrary files anywhere on the client filesystem
- CVE-2026-59293 SMB minimum protocol dialect defaults to SMB1
- CVE-2026-59274 Unbounded decompression in UnZipTransformer enables zip-bomb DoS
Sources
Also known as GHSA-cjcq-xx9x-p972.