CVE-2026-15966: Permissive cross-domain security policy with untrusted domains vulnerability in Progress MOVEit Transfer. Thi

Routine

HIGH 7.5UPGRADE

CVE-2026-15966 is a high-severity flaw (CVSS 7.5) affecting moveit transfer. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

Permissive cross-domain security policy with untrusted domains vulnerability in Progress MOVEit Transfer. This issue affects MOVEit Transfer: before 2025.1.5, from 2026.0.0 before 2026.0.3.

Why this priority

High severity

A fixed release or distro patch exists.

Risk facts

CVSS score	7.5 (High)
Attack vector	Network (remote)
Attack complexity	High
Privileges needed	None
User interaction	Required
EPSS exploit chance	0.4% (top 70%)
CISA exploited list	No
Weakness	CWE-942
Published	2026-07-23
Last modified	2026-10-24

Publisher (CNA): Progress Software Corporation · Vendor: progress

Last updated 2026-10-24 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score

Am I affected?

Timeline

2026-07-23 21:17 UTCPublished CVE record published
2026-10-24 13:10 UTCUpdated Record last modified

progress moveit transfer UPGRADE

Affected: < 2025.1.5 · >= 2026.0.0 and < 2026.0.3

Fixed in: 2025.1.5, 2026.0.3

Safe to downgrade to: a release before 2026.0.0

1. Check installed version

apt-cache policy moveit-transfer || rpm -q moveit-transfer || moveit-transfer --version

2. UPGRADE to 2025.1.5 (Debian / Ubuntu)

sudo apt update && sudo apt install --only-upgrade moveit-transfer

2. UPGRADE (RHEL / Amazon Linux / Fedora)

sudo dnf upgrade moveit-transfer

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 2026.0.0 (Debian / Ubuntu)

apt-cache madison moveit-transfer sudo apt install moveit-transfer=<VERSION_BEFORE_2026.0.0> sudo apt-mark hold moveit-transfer

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

dnf --showduplicates list moveit-transfer sudo dnf downgrade moveit-transfer-<VERSION_BEFORE_2026.0.0> sudo dnf versionlock add moveit-transfer

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.

Exact fixes by distribution

Fedora 46 · sugar-abacus · FIXED · 61-18.fc46 · FEDORA-2026-b1e9de9204 · source

sudo dnf upgrade --advisory=FEDORA-2026-b1e9de9204

Fedora ELN · selinux-policy · FIXED · 45.23-1.eln159 · FEDORA-2026-3668c969a2 · source

sudo dnf upgrade --advisory=FEDORA-2026-3668c969a2

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-2026-15966?

moveit transfer: upgrade to 2025.1.5, 2026.0.3. Exact commands for each OS are on this page.

Is CVE-2026-15966 being exploited?

CVE-2026-15966 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-2026-15966 affect?

CVE-2026-15966 affects moveit transfer. Severity is high (CVSS 7.5). Permissive cross-domain security policy with untrusted domains vulnerability in Progress MOVEit Transfer. This issue affects MOVEit Transfer: before 2025.1.5, from 2026.0.0 before 2026.0.3.

How urgent is CVE-2026-15966?

Priority 34/100. High severity

Software pages

Progress MOVEit vulnerabilities

Related CVEs

CVE-2026-10697 HIGH 7.5 UPGRADE Improper Authentication vulnerability in Progress MOVEit Transfer. This issue affects MOVEit Transfer: before
CVE-2026-15967 HIGH 7.5 UPGRADE Insufficient session expiration vulnerability in Progress MOVEit Transfer. This issue affects MOVEit Transfer
CVE-2026-15968 HIGH 7.1 UPGRADE Improper neutralization of input during web page generation ('cross-site scripting') vulnerability in Progress

References

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