CVE-2026-40372

critical

Published 2026-04-21 · Modified 2026-05-05

💬 Discuss on Community ✚ Propose mitigation

CVSS v3

9.1

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

CVSS v4 NEW

—

not yet in upstream

VIR risk

9.1

Description

Microsoft Security Advisory CVE-2026-40372 – ASP.NET Core Elevation of Privilege

Predictions

Exploit likelihood

94%

Patch ETA

—

Heuristic predictions, AS-IS, for prioritization only.

Mitigations

No mitigations published for this CVE yet.

The vendor-content worker queues fetches as references arrive (check back in a few minutes). Or — if you've already worked around this in production — publish your fix to the community-verified tier.

✚ Propose a mitigation on Community → Mitigations published via the community go through AI scoring + 2 human reviewers + 7-day silent objection window before landing here with source_tier=community-verified.

Package impact

Ecosystem	Package	Vulnerable	Fixed
NuGet	Microsoft.AspNetCore.DataProtection	`>=10.0.0,<10.0.7`	`10.0.7`

Application impact

Vendor	Product	Versions	Fixed
microsoft	asp.net_core	`{"startIncluding":"10.0.0","endExcluding":"10.0.7"}`	`10.0.7`

References

CWEs

CWE-347

Community-verified mitigations for this CVE will appear above when contributors publish them.

Verify integrity in audit chain (admin only). AS-IS.