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High 7.5Published Jun 9, 2026
CVE-2026-45591Uncontrolled resource consumption in ASP.NET Core allows an unauthorized attacker to deny service over a network.
Updated under an hour ago ()
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It affects microsoft asp.net_core and 2 other products. Add what you run to find out whether that includes you.
No exploitation reported and no EPSS estimate yet.
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Uncontrolled resource consumption in ASP.NET Core allows an unauthorized attacker to deny service over a network.
- CVSS
- 7.5 HIGH (v3.1, NVD)CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
- Weakness (CWE)
- CWE-400, CWE-770
- Known exploited
- Not in CISA's KEV catalog
- EPSS (exploitation in the next 30 days)
- Not loaded for this CVE
- Assigned by
- Not given
- NVD analysis
- Modified
- Record last updated
- Jul 23, 2026
- First seen by InfoSec Signals
- Oct 9, 2026
Affected products
microsoft asp.net_core microsoft:asp.net_core | from 8.0.0 before 8.0.28; from 9.0.0 before 9.0.17; from 10.0.0 before 10.0.9 | NVD |
microsoft visual_studio_2026 microsoft:visual_studio_2026 | from 18.6.0 before 18.6.3 | NVD |
microsoft .net microsoft:.net | from 8.0.0 before 8.0.28; from 9.0.0 before 9.0.17; from 10.0.0 before 10.0.9 | NVD |
References
- https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-45591vendor-advisory
- https://access.redhat.com/errata/RHSA-2026:17527
- https://access.redhat.com/errata/RHSA-2026:25110
- https://access.redhat.com/errata/RHSA-2026:25111
- https://access.redhat.com/errata/RHSA-2026:25112
- https://access.redhat.com/errata/RHSA-2026:25113
- https://access.redhat.com/errata/RHSA-2026:25114
- https://access.redhat.com/errata/RHSA-2026:25115
- https://access.redhat.com/errata/RHSA-2026:25220
- https://access.redhat.com/errata/RHSA-2026:25221
- https://access.redhat.com/errata/RHSA-2026:25222
- https://access.redhat.com/errata/RHSA-2026:26638
- https://access.redhat.com/errata/RHSA-2026:26994
- https://access.redhat.com/errata/RHSA-2026:28007
- https://access.redhat.com/errata/RHSA-2026:28009
- https://access.redhat.com/errata/RHSA-2026:28011
- https://access.redhat.com/errata/RHSA-2026:28051
- https://access.redhat.com/errata/RHSA-2026:28227
- https://access.redhat.com/security/cve/CVE-2026-45591
- https://bugzilla.redhat.com/show_bug.cgi?id=2487224
- https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-45591.json
The CVE record on cve.org NVD's entry
The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.