What is GHSA-ch84-jp3r-9q25?

GHSA-ch84-jp3r-9q25 is a security advisory published by GitHub Security Advisories with High severity. Hickory DNS 0.24.0 through 0.26.1 contains a memory exhaustion vulnerability that allows remote...

Which CVE IDs does GHSA-ch84-jp3r-9q25 cover?

GHSA-ch84-jp3r-9q25 covers the following CVE IDs: CVE-2026-123576. Each CVE has its own detail page on EchelonGraph Pulse with the synthesized EG score.

What is the CVSS v3 score of GHSA-ch84-jp3r-9q25?

GHSA-ch84-jp3r-9q25 has a CVSS v3 base score of 7.5, published by GitHub Security Advisories.

GHSA-ch84-jp3r-9q25HighCVSS 7.5

Hickory DNS 0.24.0 through 0.26.1 contains a memory exhaustion vulnerability that allows remote...

Vendor

GitHub Security Advisories

Published

November 8, 2026

Last Modified

November 8, 2026

🔗 CVE IDs covered (1)

CVE-2026-123576 →

📋 Description

Hickory DNS 0.24.0 through 0.26.1 contains a memory exhaustion vulnerability that allows remote attackers to consume server resources by sending incomplete DNS-over-QUIC request bodies. Attackers can open many connections and send only large length prefixes, causing pre-allocated buffers to persist without timeout and exhausting server memory.

🔗 References (4)

https://github.com/hickory-dns/hickory-dns/security/advisories/GHSA-2f4m-fq7w-mrgx
https://nvd.nist.gov/vuln/detail/CVE-2026-123576
https://www.vulncheck.com/advisories/hickory-dns-0.24.0-through-0.26.1-memory-exhaustion-via-dns-over-quic-requests
https://github.com/advisories/GHSA-ch84-jp3r-9q25