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0xCERT Security Advisory 0xCERT-2026-0211
============================================================

Advisory-ID:  0xCERT-2026-0211
Severity:     High
Published:    2026-07-02T20:26:56.000Z
Updated:      2026-10-08T22:47:34.996Z
Chains:       n/a
URL:          https://www.0xcert.com/advisory/0xCERT-2026-0211

Title: Zebra Address Book Aborted by IPv4-Mapped Mempool Misbehavior Update

Summary
- -------
Zebra Address Book Aborted by IPv4-Mapped Mempool Misbehavior Update. You are affected if: 1. You run zebrad up to and including v4.4.1. 2. Your node listens on the default [::] address on a Linux host (the standard deployment configuration — net.

Details
- -------
Summary
You are affected if: 1. You run zebrad up to and including v4.4.1. 2. Your node listens on the default [::] address on a Linux host (the standard deployment configuration — net.

Affected
- - zebra-network (rust) <= 6.0.0 — fixed in 7.0.0
- - zebrad (rust) <= 4.4.1 — fixed in 4.5.0

Severity
High, as rated by the upstream advisory.

Recommended actions
- - Upgrade zebra-network to 7.0.0 or later
- - Upgrade zebrad to 4.5.0 or later

Source & attribution
This 0xCERT advisory summarises GHSA-63wg-wjjj-7cp8 / CVE-2026-52829 from the GitHub Advisory Database, credited upstream to Haxatron, oxarbitrage, mpguerra: https://github.com/advisories/GHSA-63wg-wjjj-7cp8. Details may change; refer to the original source for the authoritative record.

References
- ----------
- - https://github.com/advisories/GHSA-63wg-wjjj-7cp8
- - CVE-2026-52829
- - https://github.com/ZcashFoundation/zebra/security/advisories/GHSA-63wg-wjjj-7cp8

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