CVE-2026-69304
What it is
Improper handling of highly compressed data (data amplification) in ASP.NET Core allows an unauthorized attacker to deny service over a network.
At a glance
- Exploitability
- Can be exploited over the network without logging in. High risk of service disruption.
- Exploit odds
- 0.9% chance of exploitation in the next 30 days (EPSS).
- Fix
- A patch, advisory or fixed version is referenced. Upgrade or apply it.
Timeline
- PublishedDisclosed publicly on CVE.org and NVD
- Last updatedMost recent change to the record
Why it ranks here
- Exploited in the wild: no, CISA does not list it.
- Exploit odds: 0.9% in the next 30 days (EPSS).
- Severity: 5.9 MEDIUM (CVSS).
- Fix: a patch or advisory is linked.
Details
- Published
- Last modified
- Exploit probability
- 0.9% · EPSS, next 30 days
- Weakness
- CWE-409
- Record status
- Analyzed
Affected
- Microsoft asp.net Core < 8.0.28
- Microsoft asp.net Core < 9.0.17
- Microsoft asp.net Core < 10.0.9
- Microsoft asp.net Core
- Microsoft asp.net Core 11.0
- Microsoft Visual Studio 2022 < 17.14.40
- Microsoft Visual Studio 2026 < 18.9.3
- Microsoft .net < 8.0.31
Attack profile CVSS 3.1 · 5.9
- Attack vector
- Network
- Complexity
- High
- Privileges needed
- None
- User interaction
- None
- Scope
- Unchanged
- Confidentiality
- None
- Integrity
- None
- Availability
- High
Raw vector
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H
Is it in your code?
Hand this to your coding agent. It searches your project for the affected products and checks versions. Nothing leaves your machine.
Read https://cve-list.com/agent/cve/CVE-2026-69304.md and follow it. Check whether this project is affected by CVE-2026-69304. Read only. Don't change anything and don't upload my code. Tell me yes, no or not sure, with the file as proof.
