DEBIAN-CVE-2026-118673

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Source
https://security-tracker.debian.org/tracker/CVE-2026-118673
Import Source
https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-118673.json
JSON Data
https://api.osv.dev/v1/vulns/DEBIAN-CVE-2026-118673
Upstream
Published
2026-10-29T16:18:03Z
Modified
2026-11-04T09:47:34Z
Severity
  • 4.1 (Medium) CVSS_V4 - CVSS:4.0/AV:L/AC:H/AT:P/PR:L/UI:P/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X CVSS Calculator
Summary
[none]
Details

KeePassXC is a cross-platform community-driven port of the Windows application KeePass Password Safe. From 2.3.0 until 2.8.0, KeePassXC browser integration encrypts authorized responses in src/browser/BrowserMessageBuilder.cpp using a fixed 1 MiB output vector even though Botan::Sodium::crypto_box_easy() writes the plaintext length plus crypto_box_MACBYTES. A browser-protocol client that can access the per-user IPC endpoint, has a valid database association, and causes an unlocked database to generate and encrypt a sufficiently large authorized response can trigger a sequential out-of-bounds write before any response is delivered. This issue is fixed in version 2.8.0.

References

Affected packages

Debian:12 / keepassxc

Package

Name
keepassxc
Purl
pkg:deb/debian/keepassxc?arch=source&distro=bookworm

Affected ranges

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

Affected versions

2.*
2.7.4+dfsg.1-2
2.7.6+dfsg.1-1
2.7.7+dfsg.1-1
2.7.7+dfsg.1-1+exp1
2.7.7+dfsg.1-2
2.7.7+dfsg.1-3~exp1
2.7.7+dfsg.1-3
2.7.9+dfsg1-1
2.7.10+dfsg1-1
2.7.10+dfsg1-2
2.7.10+dfsg1-2.1
2.8.0+dfsg1-1

Ecosystem specific 

{
    "urgency": "not yet assigned"
}

Database specific

source 
"https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-118673.json"

Debian:13 / keepassxc

Package

Name
keepassxc
Purl
pkg:deb/debian/keepassxc?arch=source&distro=trixie

Affected ranges

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

Affected versions

2.*
2.7.10+dfsg1-1
2.7.10+dfsg1-2
2.7.10+dfsg1-2.1
2.8.0+dfsg1-1

Ecosystem specific 

{
    "urgency": "not yet assigned"
}

Database specific

source 
"https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-118673.json"

Debian:14 / keepassxc

Package

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

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0 Unknown introduced version / All previous versions are affected
Fixed
2.8.0+dfsg1-1

Affected versions

2.*
2.7.10+dfsg1-1
2.7.10+dfsg1-2
2.7.10+dfsg1-2.1

Ecosystem specific 

{
    "urgency": "not yet assigned"
}

Database specific

source 
"https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-118673.json"