CVE-2026-55204: HAProxy - NULL Pointer Dereference in hpack_dht_insert Function

Overview

Severity

High (CVSS 7.5)

CVSS Vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Exploit Status

Not Exploited

Patch Tuesday

2026-Jun

Released

2026-06-27

EPSS Score

0.43% (percentile: 34.6%)

Affected Products (1)

Other

• 21468-17084

Revision History

• 2026-06-27: Information published.