Lucene search
+L

CVE-2026-78227 Use-after-free in DoQ stream output buffer on reset re-transmission

🗓️ 16 Sep 2026 08:29:52Reported by NLnet LabsType 
cvelist
 cvelist
🔗 www.cve.org👁 5 Views

NLnet Labs Unbound 1.22.0 up to and including 1.26.1, has a use-after-free vulnerability when compiled for DNS-over-QUIC support with '--with-libngtcp2'. Each DoQ stream owns an output buffer that holds the DNS response. ngtcp2's retransmission bu...

Related
Affected
Refs
ReporterTitlePublishedViews
Family
cve
CVE
CVE-2026-78227
16 Sep 202608:29
cve
euvd
EUVD
EUVD-2026-80288
16 Sep 202608:29
euvd
nvd
NVD
CVE-2026-78227
16 Sep 202609:17
nvd
redhatcve
RedhatCVE
CVE-2026-78227
16 Sep 202609:38
redhatcve
[
  {
    "vendor": "NLnet Labs",
    "product": "Unbound",
    "versions": [
      {
        "version": "1.22.0",
        "status": "affected",
        "lessThan": "1.26.1",
        "versionType": "semver"
      }
    ],
    "defaultStatus": "unaffected"
  }
]

Data

Build on a solid foundation with Vulners data

We provide the essential building blocks for cybersecurity solutions with comprehensive, structured, and constantly updated vulnerability and exploits data

Api

Power your application with Vulners API

The Vulners REST API offers reliable, high-performance access to vulnerability intelligence, with 99.9% SLA uptime and CDN-backed data delivery for seamless global access

App

Assess and manage vulnerabilities with Vulners tools

Built on top of Vulners' database and SDK, end-user solutions give security professionals and developers lightweight and powerful tools for vulnerability remediation

16 Sep 2026 08:29Current
CVSS 3.16.5
EPSS0.00267
5