MEDIUM 5.9 Microsoft
CVE-2026-34043
Serialize JavaScript has CPU Exhaustion Denial of Service via crafted array-like objects
Microsoft Security Update 2026-Mar: Serialize JavaScript has CPU Exhaustion Denial of Service via crafted array-like objects
Affected Products
- cbl2 reaper 3.1.1-22 on CBL Mariner 2.0
- azl3 python-tensorboard 2.16.2-6 on Azure Linux 3.0
References
- https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-34043
- https://nvd.nist.gov/vuln/detail/CVE-2026-34043
This medium severity vulnerability with a CVSS score of 5.9 was published on 2026-03-10 via Microsoft. Affected: cbl2 reaper 3.1.1-22 on CBL Mariner 2.0, azl3 python-tensorboard 2.16.2-6 on Azure Linux 3.0.
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