DEBIAN-CVE-2026-86776

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Source
https://security-tracker.debian.org/tracker/CVE-2026-86776
Import Source
https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-86776.json
JSON Data
https://api.osv.dev/v1/vulns/DEBIAN-CVE-2026-86776
Upstream
  • CVE-2026-86776
Published
2026-09-09T10:22:33Z
Modified
2026-09-11T09:02:56Z
Severity
  • 4.6 (Medium) CVSS_V4 - CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:A/VC:N/VI:N/VA:L/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

KeePass versions 2.35 through 2.61.1 fail to validate KDBX header field sizes before memory allocation in the ReadHeaderField function. Attackers can craft a malicious KDBX file declaring excessive header field lengths to trigger allocation of gigabytes of memory, causing the application to consume resources and terminate.

References

Affected packages

Debian:12 / keepass2

Package

Name
keepass2
Purl
pkg:deb/debian/keepass2?arch=source&distro=bookworm

Affected ranges

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

Affected versions

2.*
2.47+dfsg-2
2.57+dfsg-1~bpo12+1
2.57+dfsg-1
2.57+dfsg-2
2.57+dfsg-3
2.57+dfsg-4
2.60+dfsg-1

Ecosystem specific 

{
    "urgency": "not yet assigned"
}

Database specific

source 
"https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-86776.json"

Debian:13 / keepass2

Package

Name
keepass2
Purl
pkg:deb/debian/keepass2?arch=source&distro=trixie

Affected ranges

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

Affected versions

2.*
2.57+dfsg-3
2.57+dfsg-4
2.60+dfsg-1

Ecosystem specific 

{
    "urgency": "not yet assigned"
}

Database specific

source 
"https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-86776.json"

Debian:14 / keepass2

Package

Name
keepass2
Purl
pkg:deb/debian/keepass2?arch=source&distro=forky

Affected ranges

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

Affected versions

2.*
2.57+dfsg-3
2.57+dfsg-4
2.60+dfsg-1

Ecosystem specific 

{
    "urgency": "not yet assigned"
}

Database specific

source 
"https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-86776.json"