CVE-2026-9590: Improper access control in the permission validation component in Devolutions Server 2026.1.19 and earlier all

Q: How do I fix CVE-2026-9590?

devolutions server: upgrade to 2026.1.20.0. Exact commands for each OS are on this page.

Q: Is CVE-2026-9590 being exploited?

CVE-2026-9590 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

Q: What does CVE-2026-9590 affect?

CVE-2026-9590 affects devolutions server. Severity is medium (CVSS 5.3). Improper access control in the permission validation component in Devolutions Server 2026.1.19 and earlier allows an authenticated user with entry edit privileges to modify asset information without the required permission.

Q: How urgent is CVE-2026-9590?

Priority 26/100. Remotely exploitable, no login, no user action

Routine

MEDIUM 5.3REMOTEUPGRADE

CVE-2026-9590 is a medium-severity flaw (CVSS 5.3) affecting devolutions server. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

Improper access control in the permission validation component in Devolutions Server 2026.1.19 and earlier allows an authenticated user with entry edit privileges to modify asset information without the required permission.

Why this priority

Remotely exploitable, no login, no user action

A fixed release or distro patch exists.

Risk facts

CVSS score	5.3 (Medium)
Attack vector	Network (remote)
Attack complexity	Low
Privileges needed	None
User interaction	None
EPSS exploit chance	0.2% (top 92%)
CISA exploited list	No
Weakness	CWE-284
Published	2026-06-02
Last modified	2026-07-22

Publisher (CNA): Devolutions Inc. · Vendor: devolutions

Last updated 2026-07-22 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score

Am I affected?

Timeline

2026-06-02 16:16 UTCPublished CVE record published
2026-07-22 19:10 UTCUpdated Record last modified

devolutions devolutions server UPGRADE

Affected: < 2026.1.20.0

Fixed in: 2026.1.20.0

Safe to downgrade to: no unaffected older release

1. Check installed version

apt-cache policy devolutions-server || rpm -q devolutions-server || devolutions-server --version

2. UPGRADE to 2026.1.20.0 (Debian / Ubuntu)

sudo apt update && sudo apt install --only-upgrade devolutions-server

2. UPGRADE (RHEL / Amazon Linux / Fedora)

sudo dnf upgrade devolutions-server

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-2026-9590?

devolutions server: upgrade to 2026.1.20.0. Exact commands for each OS are on this page.

Is CVE-2026-9590 being exploited?

CVE-2026-9590 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-2026-9590 affect?

CVE-2026-9590 affects devolutions server. Severity is medium (CVSS 5.3). Improper access control in the permission validation component in Devolutions Server 2026.1.19 and earlier allows an authenticated user with entry edit privileges to modify asset information without the required permission.

How urgent is CVE-2026-9590?

Priority 26/100. Remotely exploitable, no login, no user action

Related CVEs

CVE-2026-6706 MEDIUM 6.5 UPGRADE Improper access control in the vault documentation feature in Devolutions Server allows an authenticated att
CVE-2026-5175 MEDIUM 5.0 UPGRADE Improper access control in the multi-factor authentication (MFA) management API in Devolutions Server allows a
CVE-2026-4828 HIGH 8.2 UPGRADE Improper authentication in the OAuth login functionality in Devolutions Server 2026.1.11 and earlier allows a
CVE-2026-4927 MEDIUM 6.5 UPGRADE Exposure of sensitive information in the users MFA feature in Devolutions Server allows users with user manage
CVE-2026-4829 MEDIUM 5.4 UPGRADE Improper authentication in the external OAuth authentication flow in Devolutions Server 2026.1.11 and earlier

References

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