What is CVE-2026-48856?

CVE-2026-48856 is a security advisory published by Microsoft Security Response Center (MSRC) with High severity. httpc leaks Authorization header to cross-origin redirect targets

Which CVE IDs does CVE-2026-48856 cover?

CVE-2026-48856 covers the following CVE IDs: CVE-2026-48856. Each CVE has its own detail page on EchelonGraph Pulse with the synthesized EG score.

What is the CVSS v3 score of CVE-2026-48856?

CVE-2026-48856 has a CVSS v3 base score of 6.5, published by Microsoft Security Response Center (MSRC).

Which products are affected by CVE-2026-48856?

CVE-2026-48856 affects 1 product, including: azl3 erlang 26.2.5.20-1 on Azure Linux 3.0.

CVE-2026-48856HighCVSS 6.5

httpc leaks Authorization header to cross-origin redirect targets

Vendor

Microsoft Security Response Center (MSRC)

Published

June 19, 2026

Last Modified

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🔗 CVE IDs covered (1)

CVE-2026-48856 →

🎯 Affected products1

azl3 erlang 26.2.5.20-1 on Azure Linux 3.0

✅ Remediation

KBCBL-Mariner Releases (Security Update) — fixed build 26.2.5.21-2

🔗 References (2)

advisoryhttps://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-48856
referencehttps://learn.microsoft.com/en-us/azure/azure-linux/tutorial-azure-linux-upgrade