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CVE-2026-102125: The sandbox that isolates document conversion on a Kiteworks appliance did not fully confine the code running

39
Routine
HIGH 8.8UPGRADE

CVE-2026-102125 is a high-severity flaw (CVSS 8.8) affecting kiteworks. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

The sandbox that isolates document conversion on a Kiteworks appliance did not fully confine the code running inside it. Code already executing within that sandbox could potentially escape its confinement and act with the privileges of the service account that runs the application, which could allow an attacker in that position to read or modify application data and configuration, or to disrupt the service on the affected appliance.

Why this priority

  • High severity

A fixed release or distro patch exists.

Risk facts

CVSS score8.8 (High)
Attack vectorLocal
Attack complexityLow
Privileges neededLow
User interactionNone
EPSS exploit chance0.4% (top 67%)
CISA exploited listNo
WeaknessCWE-653, CWE-668
Published2026-09-30
Last modified2026-10-08
Publisher (CNA): Cybersecurity and Infrastructure Security Agency (CISA) U.S. Civilian Government · Vendor: accellion

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Last updated 2026-10-08 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score

Am I affected?

Timeline

accellion kiteworks UPGRADE
Affected: < 9.5.0
Fixed in: 9.5.0
Safe to downgrade to: no unaffected older release
1. Check installed version
apt-cache policy kiteworks || rpm -q kiteworks || kiteworks --version
2. UPGRADE to 9.5.0 (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-2026-102125?

kiteworks: upgrade to 9.5.0. Exact commands for each OS are on this page.

Is CVE-2026-102125 being exploited?

CVE-2026-102125 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-2026-102125 affect?

CVE-2026-102125 affects kiteworks. Severity is high (CVSS 8.8). The sandbox that isolates document conversion on a Kiteworks appliance did not fully confine the code running inside it. Code already executing within that sandbox could potentially escape its confinement and act with the privileges of the

How urgent is CVE-2026-102125?

Priority 39/100. High severity

Related CVEs

References

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