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CVE-2026-29092: Kiteworks is a private data network (PDN)

21
Routine
MEDIUM 4.9UPGRADE

CVE-2026-29092 is a medium-severity flaw (CVSS 4.9) affecting kiteworks. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

Kiteworks is a private data network (PDN). Prior to version 9.2.1, a vulnerability in Kiteworks Email Protection Gateway session management allows blocked users to maintain active sessions after their account is disabled. This could allow unauthorized access to continue until the session naturally expires. Upgrade Kiteworks to version 9.2.1 or later to receive a patch.

Why this priority

  • No elevated risk signals yet

A fixed release or distro patch exists.

Risk facts

CVSS score4.9 (Medium)
Attack vectorNetwork (remote)
Attack complexityLow
Privileges neededHigh
User interactionNone
EPSS exploit chance0.2% (top 84%)
CISA exploited listNo
WeaknessCWE-613
Published2026-03-25
Last modified2026-06-17
Publisher (CNA): GitHub, Inc. · Vendor: accellion

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Last updated 2026-06-17 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score

Am I affected?

Timeline

accellion kiteworks UPGRADE
Affected: < 9.2.1
Fixed in: 9.2.1
Safe to downgrade to: no unaffected older release
1. Check installed version
apt-cache policy kiteworks || rpm -q kiteworks || kiteworks --version
2. UPGRADE to 9.2.1 (Debian / Ubuntu)
sudo apt update && sudo apt install --only-upgrade kiteworks
2. UPGRADE (RHEL / Amazon Linux / Fedora)
sudo dnf upgrade kiteworks
Note
Distros often backport fixes without changing the version number. Confirm with the distro advisory or changelog.
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-2026-29092?

kiteworks: upgrade to 9.2.1. Exact commands for each OS are on this page.

Is CVE-2026-29092 being exploited?

CVE-2026-29092 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-2026-29092 affect?

CVE-2026-29092 affects kiteworks. Severity is medium (CVSS 4.9). Kiteworks is a private data network (PDN). Prior to version 9.2.1, a vulnerability in Kiteworks Email Protection Gateway session management allows blocked users to maintain active sessions after their account is disabled. This could allow u

How urgent is CVE-2026-29092?

Priority 21/100. No elevated risk signals yet.

Related CVEs

References

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