Spring Security Advisories

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ZipTransformer uses file_name header to build workDirectory path without sanitization

MEDIUM | AUGUST 20, 2026 | CVE-2026-47862

Description

An attacker who can set the file_name header on a message reaching a ZipTransformer with ZipResultType.FILE (the default) can cause the resulting .zip archive to be written to an arbitrary filesystem path outside the configured workDirectory.

Affected Spring Products and Versions

Spring Integration:

  • 7.1.0 - 7.1.0
  • 7.0.0 - 7.0.5
  • 6.5.0 - 6.5.10
  • 6.4.0 - 6.4.12

Mitigation

Users of affected versions should upgrade to the corresponding fixed version.
Fix versionAvailability
7.1.0.1Enterprise Support Only
7.1.1OSS
7.0.5.1Enterprise Support Only
7.0.6OSS
6.5.11Enterprise Support Only
6.4.13Enterprise Support Only

No further mitigation steps are necessary.

Credit

The issue was identified and responsibly reported by Naveed Khan.

References

History

  • 2026-08-20: Initial vulnerability report published.

Reporting a vulnerability

To report a security vulnerability for a project within the Spring portfolio, see the Security Policy

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