What is CVE-2026-55204?

CVE-2026-55204 is a security advisory published by Microsoft Security Response Center (MSRC) with High severity. HAProxy - NULL Pointer Dereference in hpack_dht_insert Function

Which CVE IDs does CVE-2026-55204 cover?

CVE-2026-55204 covers the following CVE IDs: CVE-2026-55204. Each CVE has its own detail page on EchelonGraph Pulse with the synthesized EG score.

What is the CVSS v3 score of CVE-2026-55204?

CVE-2026-55204 has a CVSS v3 base score of 7.5, published by Microsoft Security Response Center (MSRC).

CVE-2026-55204HighCVSS 7.5

HAProxy - NULL Pointer Dereference in hpack_dht_insert Function

Vendor

Microsoft Security Response Center (MSRC)

Published

June 30, 2026

Last Modified

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🔗 CVE IDs covered (1)

CVE-2026-55204 →