What is CVE-2026-5958?

CVE-2026-5958 is a security advisory published by Microsoft Security Response Center (MSRC) with Low severity. Race Condition in GNU Sed

Which CVE IDs does CVE-2026-5958 cover?

CVE-2026-5958 covers the following CVE IDs: CVE-2026-5958. Each CVE has its own detail page on EchelonGraph Pulse with the synthesized EG score.

Which products are affected by CVE-2026-5958?

CVE-2026-5958 affects 5 products, including: azl3 sed 4.9-1 on Azure Linux 3.0; azl3 sed 4.9-2 on Azure Linux 3.0; cbl2 sed 4.8-3; cbl2 sed 4.8-3 on CBL Mariner 2.0; cbl2 sed 4.8-3 on CBL-Mariner 2.0.

CVE-2026-5958Low

Race Condition in GNU Sed

Vendor

Microsoft Security Response Center (MSRC)

Published

June 2, 2026

Last Modified

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🔗 CVE IDs covered (1)

CVE-2026-5958 →

🎯 Affected products5

azl3 sed 4.9-1 on Azure Linux 3.0
azl3 sed 4.9-2 on Azure Linux 3.0
cbl2 sed 4.8-3
cbl2 sed 4.8-3 on CBL Mariner 2.0
cbl2 sed 4.8-3 on CBL-Mariner 2.0

✅ Remediation

KBCBL-Mariner Releases (Security Update) — fixed build 4.9-2 KBRelease Notes (Security Update)

🔗 References (2)

advisoryhttps://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-5958
referencehttps://learn.microsoft.com/en-us/azure/azure-linux/tutorial-azure-linux-upgrade