CVE-2026-59293: Unless the application explicitly raises smbMinVersion, the jCIFS client will negotiate down to SMB1/CIFS, whi

Routine

MEDIUM 6.6UPGRADE

CVE-2026-59293 is a medium-severity flaw (CVSS 6.6) affecting spring integration. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

Unless the application explicitly raises smbMinVersion, the jCIFS client will negotiate down to SMB1/CIFS, which lacks mandatory signing/encryption and is vulnerable to NTLM relay and content-tampering MITM. 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

Why this priority

No elevated risk signals yet

A fixed release or distro patch exists.

Risk facts

CVSS score	6.6 (Medium)
Attack vector	Network (remote)
Attack complexity	High
Privileges needed	High
User interaction	None
EPSS exploit chance	0.2% (top 85%)
CISA exploited list	No
Weakness	CWE-757
Published	2026-08-27
Last modified	2026-08-31

Publisher (CNA): VMware · Vendor: vmware

Last updated 2026-08-31 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score

Am I affected?

Timeline

2026-08-27 20:17 UTCPublished CVE record published
2026-08-31 23:14 UTCUpdated Record last modified

vmware spring integration UPGRADE

Affected: >= 6.4.0 and < 6.4.13 · >= 6.5.0 and < 6.5.11 · >= 7.0.0 and < 7.0.5.1 · >= 7.1.0 and < 7.1.0.1

Fixed in: 6.4.13, 6.5.11, 7.0.5.1, 7.1.0.1

Safe to downgrade to: a release before 6.4.0

1. Check installed version

apt-cache policy spring-integration || rpm -q spring-integration || spring-integration --version

2. UPGRADE to 6.4.13 (Debian / Ubuntu)

sudo apt update && sudo apt install --only-upgrade spring-integration

2. UPGRADE (RHEL / Amazon Linux / Fedora)

sudo dnf upgrade spring-integration

Note

Distros often backport fixes without changing the version number. Confirm with the distro advisory or changelog.

3. If no update is available yet, DOWNGRADE to a release before 6.4.0 (Debian / Ubuntu)

apt-cache madison spring-integration sudo apt install spring-integration=<VERSION_BEFORE_6.4.0> sudo apt-mark hold spring-integration

3. If no update is available yet, DOWNGRADE (RHEL / Amazon Linux / Fedora)

dnf --showduplicates list spring-integration sudo dnf downgrade spring-integration-<VERSION_BEFORE_6.4.0> sudo dnf versionlock add spring-integration

Downgrade risk

Downgrading can break dependent software and may reopen older bugs. Read the distro advisory first and test on a non-production host.

After downgrade

Restart the service, and keep the package held until a fixed release ships.

Verify at the official source NVD · CVE Program · Report a problem with this page
Scores and fixes here are computed automatically from those and other public sources. Confirm with the vendor advisory before changing production systems.

Quick answers

How do I fix CVE-2026-59293?

spring integration: upgrade to 6.4.13, 6.5.11, 7.0.5.1, 7.1.0.1. Exact commands for each OS are on this page.

Is CVE-2026-59293 being exploited?

CVE-2026-59293 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

What does CVE-2026-59293 affect?

CVE-2026-59293 affects spring integration. Severity is medium (CVSS 6.6). Unless the application explicitly raises smbMinVersion, the jCIFS client will negotiate down to SMB1/CIFS, which lacks mandatory signing/encryption and is vulnerable to NTLM relay and content-tampering MITM. Spring Integration 7.1.0 Spring

How urgent is CVE-2026-59293?

Priority 27/100. No elevated risk signals yet.

Software pages

VMware vulnerabilities

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References

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