DEBIAN-CVE-2026-90439

Source
https://security-tracker.debian.org/tracker/CVE-2026-90439
Import Source
https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-90439.json
JSON Data
https://api.osv.dev/v1/vulns/DEBIAN-CVE-2026-90439
Upstream
  • CVE-2026-90439
Published
2026-09-15T15:17:27Z
Modified
2026-09-16T14:00:07Z
Severity
  • 6.5 (Medium) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:L CVSS Calculator
Summary
[none]
Details

NGINX Plus and NGINX Open Source have a vulnerability in the ngx_http_v3_module module. When using HTTP/3 with OpenSSL versions <= OpenSSL 3.5.0 under certain configurations, a limited heap buffer overflow could happen while processing a TLS handshake. This can happen in a non-deterministic manner that is beyond the attacker's control. This may cause a heap buffer overflow in the NGINX worker process leading to a restart and/or limited data corruption. Impact: This vulnerability may allow remote attackers to cause a denial-of-service (DoS) on the NGINX system or limited data corruption. There is no control plane exposure; this is a data plane issue only. Note: Software versions which have reached End of Technical Support (EoTS) are not evaluated.

References

Affected packages

Debian:14 / nginx

Package

Name
nginx
Purl
pkg:deb/debian/nginx?arch=source&distro=forky

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0 Unknown introduced version / All previous versions are affected

Affected versions

1.*
1.26.3-3
1.28.0-1
1.28.0-2
1.28.0-3
1.28.0-4
1.28.0-5
1.28.0-6
1.28.1-1
1.28.1-2
1.28.1-3
1.28.2-1
1.28.2-2
1.28.2-3
1.28.2-4
1.28.3-1
1.28.3-2
1.30.0-1
1.30.0-2
1.30.0-3
1.30.0-4
1.30.1-1
1.30.1-2
1.30.1-3
1.30.1-4
1.30.1-5
1.30.1-6
1.30.1-7
1.30.4-1
1.30.4-2
1.30.4-3
1.30.4-4
1.30.4-5
1.30.4-6

Ecosystem specific

{
    "urgency": "not yet assigned"
}

Database specific

source
"https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-90439.json"