PT-2026-82048 · Nlnet+4 · Nsd

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CVE-2026-19538

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Published

2026-08-26

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Updated

2026-08-26

CVSS v4.0

8.2

High

VectorAV:N/AC:L/AT:P/PR:N/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N
Name of the Vulnerable Software and Affected Versions The product name cannot be determined (affected versions not specified)
Description Access control list items configured as BLOCKED to deny access on the proxy protocol port can be bypassed. This occurs when a connection is established over TCP or TLS and the query is sent twice on a connection that remains open.
Recommendations At the moment, there is no information about a newer version that contains a fix for this vulnerability.

Authentication Bypass by Spoofing

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Weakness Enumeration

Related Identifiers

CVE-2026-19538

Affected Products

Nsd