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CVE-2026-45490 high CVSS 7.8

Vulnerability in dotnet-sdk (CVE-2026-45490)

Summary

Vulnerability in dotnet-sdk (CVE-2026-45490). Successful exploitation can lead to full system takeover. Mitigation: upgrade to 8.0.28, 9.0.17, 10.0.9 or later.

Original description

The description as published by the source.

Improper authorization in .NET allows an authorized attacker to elevate privileges locally.

Source: GitHub Security Advisories (Global) NVD GitHub Advisory

Auto-generated summary

Assembled by SecPulse from the source data (CVSS, CWE, affected versions) using templates — no AI involved. Check the original description and references below for exact details.

A weakness called CVE-2026-45490 was discovered in dotnet-sdk.
Severity is High (CVSS 7.8/10). If exploited, attackers can leak data or disrupt key functionality.
What you should do: update the affected software to the latest version. If unsure, ask your IT team or search the vendor's site for "dotnet-sdk CVE-2026-45490".

CVE-2026-45490 (dotnet-sdk). Severity: High / CVSSv3 7.8. Category: CWE-285.
Response plan:

  1. Check the vendor advisory for affected versions and the patched release.
  2. If a vulnerable version is running in production, schedule maintenance (urgency from KEV/CVSS).
  3. If no patch yet, mitigate via WAF rule, disabling the affected feature, etc.
  4. Monitor logs / SIEM for known IOC and PoC signatures of this CVE.
    PoCs and fix commits: see the 'References' section, MITRE, and NVD.
❓ What is the problem

A weakness (CVE-2026-45490) in dotnet-sdk. A serious software flaw has been identified.

📍 Affected scope

Target versions of dotnet-sdk (see vendor advisory). If running in production, identify exposure immediately.

🔥 Severity

Severity: High (CVSS 7.8/10). If exploited, attackers can leak data or disrupt key functionality.

🔧 How to fix

Update to the patched release as listed in the vendor advisory. (Typical mitigation pattern for CWE-285)

🛡️ Workaround

If a patch is not yet available, consider disabling the affected feature, applying WAF rules, blocking via network ACLs, or isolating the vulnerable version.

🔍 Detection

Check version information, scan dependencies via SBOM, and monitor SIEM for IOC and PoC signatures related to this CVE.

Affected packages

Bitnami dotnet-sdk
[{"type":"SEMVER","events":[{"introduced":"8.0.0"},{"fixed":"8.0.28"},{"introduced":"9.0.0"},{"fixed":"9.0.17"},{"introduced":"10.0.0"},{"fixed":"10.0.9"}]}]
Bitnami dotnet
[{"type":"SEMVER","events":[{"introduced":"8.0.0"},{"fixed":"8.0.28"},{"introduced":"9.0.0"},{"fixed":"9.0.17"},{"introduced":"10.0.0"},{"fixed":"10.0.9"}]}]

Fix status by distribution

Fixed packages published by each distribution for this CVE

References

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