BaseFortify

Publication date: 2026-09-16

Last updated on: 2026-09-17

Assigner: Internet Systems Consortium (ISC)

Description

If a BIND resolver has cached a tree of SVCB/HTTPS AliasMode records, and is then queried for the root of that tree, the resolver will spend disproportionate CPU time constructing the response. This issue affects BIND 9 versions 9.18.0 through 9.18.50, 9.20.0 through 9.20.27, 9.21.0 through 9.21.25, 9.18.11-S1 through 9.18.50-S1, and 9.20.9-S1 through 9.20.27-S1.

CVSS Scores

EPSS Scores

Probability:
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Meta Information

Published

2026-09-16

Last Modified

2026-09-17

Generated

2026-09-20

EPSS Evaluated

N/A

NVD

CVE-2026-81736

Affected Vendors & Products

Currently, no data is known.

Helpful Resources

Exploitability

CWE

KEV

CWE ID	Description
CWE-1050	The product has a loop body or loop condition that contains a control element that directly or indirectly consumes platform resources, e.g. messaging, sessions, locks, or file descriptors.

Attack-Flow Graph

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