CVE-2026-26171
High
Description
Uncontrolled resource consumption in .NET allows an unauthorized attacker to deny service over a network.
SeverityHigh
CVSS7.5
Exploit probability—
Product
Microsoft .net
PublishedApr 14, 2026
First seenApr 14, 2026
How to fix
Update
- microsoft .net10.0.6, 8.0.26, 9.0.15 or later
- microsoft powershell7.5.6, 7.6.1 or later
- System.Security.Cryptography.Xml10.0.6, 9.0.15, 8.0.3 or later
Vendor advisories
- access.redhat.com/errata/RHSA-2026:13281
- access.redhat.com/errata/RHSA-2026:13280
- access.redhat.com/errata/RHSA-2026:8467
- access.redhat.com/errata/RHSA-2026:8470
- access.redhat.com/errata/RHSA-2026:8472
- access.redhat.com/errata/RHSA-2026:8473
- access.redhat.com/errata/RHSA-2026:8468
- access.redhat.com/errata/RHSA-2026:8475
- access.redhat.com/errata/RHSA-2026:13693
- access.redhat.com/errata/RHSA-2026:13283
- access.redhat.com/errata/RHSA-2026:13282
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| microsoft .net | 10.0.0 ≤ v < 10.0.6, 8.0.0 ≤ v < 8.0.26, 9.0.0 ≤ v < 9.0.15 | 10.0.6, 8.0.26, 9.0.15 |
| microsoft powershell | 7.5 ≤ v < 7.5.6, 7.6 ≤ v < 7.6.1 | 7.5.6, 7.6.1 |
| System.Security.Cryptography.XmlNuGet | 10.0.0 ≤ v < 10.0.6, 9.0.0 ≤ v < 9.0.15, 8.0.0 ≤ v < 8.0.3 | 10.0.6, 9.0.15, 8.0.3 |
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