DEBIAN-CVE-2026-103963

Source
https://security-tracker.debian.org/tracker/CVE-2026-103963
Import Source
https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-103963.json
JSON Data
https://api.osv.dev/v1/vulns/DEBIAN-CVE-2026-103963
Upstream
  • CVE-2026-103963
Published
2026-10-30T05:16:57Z
Modified
2026-11-04T09:47:32Z
Severity
  • 7.5 (High) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H CVSS Calculator
Summary
[none]
Details

A flaw was found in glib-networking. When establishing connections using Transport Layer Security (TLS) version 1.3, the client-side session cache does not limit the number of session tickets retained for a single host. A malicious server can exploit this by sending excessive session ticket messages, causing the client application to continuously consume memory. This unbounded memory growth can exhaust system memory, resulting in a Denial of Service (DoS).

References

Affected packages

Debian:12 / glib-networking

Package

Name
glib-networking
Purl
pkg:deb/debian/glib-networking?arch=source&distro=bookworm

Affected ranges

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

Affected versions

2.*
2.74.0-4
2.76~beta-1
2.76.0-1
2.76.1-1
2.76.1-2
2.78.0-1
2.80~alpha-1
2.80~alpha-2
2.80~rc-1
2.80.0-1
2.80.1-1
2.90.0-1
2.90.0-2

Ecosystem specific

{
    "urgency": "unimportant"
}

Database specific

source
"https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-103963.json"

Debian:13 / glib-networking

Package

Name
glib-networking
Purl
pkg:deb/debian/glib-networking?arch=source&distro=trixie

Affected ranges

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

Affected versions

2.*
2.80.1-1
2.90.0-1
2.90.0-2

Ecosystem specific

{
    "urgency": "unimportant"
}

Database specific

source
"https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-103963.json"

Debian:14 / glib-networking

Package

Name
glib-networking
Purl
pkg:deb/debian/glib-networking?arch=source&distro=forky

Affected ranges

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

Affected versions

2.*
2.80.1-1
2.90.0-1
2.90.0-2

Ecosystem specific

{
    "urgency": "unimportant"
}

Database specific

source
"https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-103963.json"