CVE-2026-19538
Bypass of BLOCKED ACL items on proxy protocol port over TCP or TLS
Description
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.
No summary for this CVE yet.
CVSS Vector Breakdown
Exploitability
AV:NAttack VectorNetwork
AC:LAttack ComplexityLow
PR:NPrivileges RequiredNone
UI:NUser InteractionNone
Scope
S:UScopeUnchanged
Impact
C:NConfidentialityNone
I:HIntegrityHigh
A:NAvailabilityNone
Weaknesses
Affected Products
NLnet Labs
oss-projectaka unbound, bcder, routinator
Exploitability
Official Patch Available
Attack Graph
Products CVE Techniques Tactics
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MITRE ATT&CK
1 technique Initial Access
References
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