CVE-2026-9245: devolutions server Open Redirect — Fix

Description

Improper input validation in the external authentication provider flow in Devolutions Server allows an unauthenticated remote attacker to redirect victims to an attacker-controlled domain via a crafted login link. This issue affects : * Devolutions Server 2026.1.6.0 through 2026.1.16.0 * Devolutions Server 2025.3.20.0 and earlier

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CVSS v3.1 Score

5.0

MEDIUM

CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:L/I:L/A:L

EPSS — Exploit Prediction

0.0017

Probability of exploitation

0.07%

Percentile rank

EPSS estimates the probability that this vulnerability will be exploited in the wild within the next 30 days. A higher score means more likely to be exploited.

Weakness Type (CWE)

CWE-601 CWE-601

Affected Products

Vendor	Product	Versions
devolutions	devolutions_server	< 2025.3.22.0
devolutions	devolutions_server	2026.1.6.0 — 2026.1.19.0

References

Advisories & Patches

https://devolutions.net/security/advisories/DEVO-2026-0013/

Frequently Asked Questions

What is CVE-2026-9245? +

Improper input validation in the external authentication provider flow in Devolutions Server allows an unauthenticated remote attacker to redirect victims to an attacker-controlled domain via a crafted login link. This issue affects : * Devolutions Server 2026.1.6.0 through 2026.1.16.0 * Devolutions Server 2025.3.20.0 and earlier It has a CVSS v3.1 base score of 5.0 (MEDIUM).

How severe is CVE-2026-9245? +

CVE-2026-9245 has a CVSS v3.1 score of 5.0 out of 10, rated MEDIUM. This is a medium-severity vulnerability that should be remediated as part of regular maintenance. The EPSS score is 0.0017, placing it in the 0th percentile for exploitation probability.

What products are affected by CVE-2026-9245? +

CVE-2026-9245 affects products from devolutions, specifically: devolutions_server. Check the affected products table above for specific version ranges.

How do I check if I'm vulnerable to CVE-2026-9245? +

You can use Secably's free Website Scanner to check your website for known vulnerabilities. For infrastructure scanning, use the Port Scanner to identify exposed services that may be affected. Check the vendor advisories linked above for specific patch and version information.

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