What is CVE-2026-61674?

CVE-2026-61674 is a security advisory published by Microsoft Security Response Center (MSRC) with Critical severity. Fluent Bit: Remote stack buffer overflow in Fluent Bit `out_forward` Secure-Forward `PONG` handler

Which CVE IDs does CVE-2026-61674 cover?

CVE-2026-61674 covers the following CVE IDs: CVE-2026-61674. Each CVE has its own detail page on EchelonGraph Pulse with the synthesized EG score.

Which products are affected by CVE-2026-61674?

CVE-2026-61674 affects 1 product, including: azl3 fluent-bit 3.1.10-7 on Azure Linux 3.0.

CVE-2026-61674Critical

Fluent Bit: Remote stack buffer overflow in Fluent Bit `out_forward` Secure-Forward `PONG` handler

Vendor

Microsoft Security Response Center (MSRC)

Published

October 1, 2026

Last Modified

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🔗 CVE IDs covered (1)

CVE-2026-61674 →

🎯 Affected products1

azl3 fluent-bit 3.1.10-7 on Azure Linux 3.0

✅ Remediation

KBRelease Notes (Security Update)

🔗 References (2)

advisoryhttps://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-61674
referencehttps://learn.microsoft.com/en-us/azure/azure-linux/tutorial-azure-linux-upgrade