DEBIAN-CVE-2026-63686

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Source
https://security-tracker.debian.org/tracker/CVE-2026-63686
Import Source
https://storage.googleapis.com/osv-test-debian-osv/debian-cve-osv/DEBIAN-CVE-2026-63686.json
JSON Data
https://api.test.osv.dev/v1/vulns/DEBIAN-CVE-2026-63686
Upstream
  • CVE-2026-63686
Published
2026-10-01T17:17:29Z
Modified
2026-10-02T05:00:31Z
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 NULL pointer dereference in mod_xml2enc in Apache Software Foundation Apache HTTP Server before 2.4.69 on all platforms allows an untrusted backend server to cause a denial of service via a proxied response with a charset whose conversion partially succeeds then fails. Users are recommended to upgrade to version 2.4.69, which fixes this issue.

References

Affected packages

Debian:12 / apache2

Package

Name
apache2
Purl
pkg:deb/debian/apache2?arch=source&distro=bookworm

Affected ranges

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

Affected versions

2.*
2.4.57-2
2.4.57-3
2.4.58-1
2.4.59-1~deb10u1
2.4.59-1~deb11u1
2.4.59-1~deb12u1
2.4.59-1
2.4.59-2
2.4.60-1
2.4.61-1~deb11u1
2.4.61-1~deb12u1
2.4.61-1
2.4.62-1~deb11u1
2.4.62-1~deb11u2
2.4.62-1~deb12u1
2.4.62-1~deb12u2
2.4.62-1
2.4.62-2
2.4.62-3
2.4.62-4
2.4.62-5
2.4.62-6
2.4.63-1
2.4.64-1
2.4.65-1~deb11u1
2.4.65-1~deb12u1
2.4.65-1
2.4.65-2
2.4.65-3
2.4.66-1~deb11u1
2.4.66-1~deb12u1
2.4.66-1~deb12u2
2.4.66-1~deb13u1
2.4.66-1~deb13u2
2.4.66-1
2.4.66-2
2.4.66-3
2.4.66-4
2.4.66-5
2.4.66-6
2.4.66-7
2.4.66-8
2.4.67-1~deb11u1
2.4.67-1~deb11u2
2.4.67-1~deb11u3
2.4.67-1~deb12u1
2.4.67-1~deb12u2
2.4.67-1~deb12u3
2.4.67-1~deb13u1
2.4.67-1~deb13u2
2.4.67-1~deb13u3
2.4.67-1
2.4.67-2
2.4.68-1~deb12u1
2.4.68-1~deb13u1
2.4.68-1
2.4.68-2
2.4.69-1

Ecosystem specific 

{
    "urgency": "not yet assigned"
}

Database specific

source 
"https://storage.googleapis.com/osv-test-debian-osv/debian-cve-osv/DEBIAN-CVE-2026-63686.json"

Debian:13 / apache2

Package

Name
apache2
Purl
pkg:deb/debian/apache2?arch=source&distro=trixie

Affected ranges

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

Affected versions

2.*
2.4.65-2
2.4.65-3
2.4.66-1~deb11u1
2.4.66-1~deb12u1
2.4.66-1~deb12u2
2.4.66-1~deb13u1
2.4.66-1~deb13u2
2.4.66-1
2.4.66-2
2.4.66-3
2.4.66-4
2.4.66-5
2.4.66-6
2.4.66-7
2.4.66-8
2.4.67-1~deb11u1
2.4.67-1~deb11u2
2.4.67-1~deb11u3
2.4.67-1~deb12u1
2.4.67-1~deb12u2
2.4.67-1~deb12u3
2.4.67-1~deb13u1
2.4.67-1~deb13u2
2.4.67-1~deb13u3
2.4.67-1
2.4.67-2
2.4.68-1~deb12u1
2.4.68-1~deb13u1
2.4.68-1
2.4.68-2
2.4.69-1

Ecosystem specific 

{
    "urgency": "not yet assigned"
}

Database specific

source 
"https://storage.googleapis.com/osv-test-debian-osv/debian-cve-osv/DEBIAN-CVE-2026-63686.json"

Debian:14 / apache2

Package

Name
apache2
Purl
pkg:deb/debian/apache2?arch=source&distro=forky

Affected ranges

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

Affected versions

2.*
2.4.65-2
2.4.65-3
2.4.66-1~deb11u1
2.4.66-1~deb12u1
2.4.66-1~deb12u2
2.4.66-1~deb13u1
2.4.66-1~deb13u2
2.4.66-1
2.4.66-2
2.4.66-3
2.4.66-4
2.4.66-5
2.4.66-6
2.4.66-7
2.4.66-8
2.4.67-1~deb11u1
2.4.67-1~deb11u2
2.4.67-1~deb11u3
2.4.67-1~deb12u1
2.4.67-1~deb12u2
2.4.67-1~deb12u3
2.4.67-1~deb13u1
2.4.67-1~deb13u2
2.4.67-1~deb13u3
2.4.67-1
2.4.67-2
2.4.68-1~deb12u1
2.4.68-1~deb13u1
2.4.68-1
2.4.68-2
2.4.69-1

Ecosystem specific 

{
    "urgency": "not yet assigned"
}

Database specific

source 
"https://storage.googleapis.com/osv-test-debian-osv/debian-cve-osv/DEBIAN-CVE-2026-63686.json"