CVE-2026-19538

The BLOCKED access control list items that are evaluated to deny access on the the proxy protocol port can be bypassed completely when…

NLnet Labs·CWE-290·Published 2026-08-26

CVSS

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EPSS

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KEV

Exploits

Vendor statements (1)

nlnetlabs.nl

cve.orgen

222 chars

The BLOCKED access control list items that are evaluated to deny access on the the proxy protocol port can be bypassed completely when connecting over TCP or TLS and sending the query twice on connection that is kept open.

CVSS metrics across sources

Version	Type	Source	Base	Exp	Impact	Vector
4.0	Primary	cve.org	8.2	—	—	CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N
4.0	Secondary	NVD	8.2	—	—	CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
4.0	Secondary	ENISA EUVD	8.2	—	—	CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N