ALPINE-CVE-2026-63686
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.
ALPINE-CVE-2026-63686
Primary source · Revision 1
Imported from structured advisory data. Source references identify upstream records or fields; verify affected versions and your deployed configuration.
Security context
Source reference: osv:ALPINE-CVE-2026-63686
apache2
Source reference: /affected/0/package/name
- Affected versions
- Not stated in this record
- Fixed versions
- 2.4.69-r0
Source reference:
/affected/0/ranges - Prerequisites
- Not stated in this record
apache2
Source reference: /affected/1/package/name
- Affected versions
- Not stated in this record
- Fixed versions
- 2.4.69-r0
Source reference:
/affected/1/ranges - Prerequisites
- Not stated in this record
apache2
Source reference: /affected/2/package/name
- Affected versions
- Not stated in this record
- Fixed versions
- 2.4.69-r0
Source reference:
/affected/2/ranges - Prerequisites
- Not stated in this record
apache2
Source reference: /affected/3/package/name
- Affected versions
- Not stated in this record
- Fixed versions
- 2.4.69-r0
Source reference:
/affected/3/ranges - Prerequisites
- Not stated in this record
Structured affected-version data
Original package identities and version rules from this source.
[
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
},
{
"fixed": "2.4.69-r0"
}
]
}
],
"package": {
"name": "apache2",
"purl": "pkg:apk/alpine/apache2?arch=source",
"ecosystem": "Alpine:v3.21"
},
"database_specific": {
"source": "https://storage.googleapis.com/cve-osv-conversion/alpine/ALPINE-CVE-2026-63686.json"
},
"ecosystem_specific": {}
},
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
},
{
"fixed": "2.4.69-r0"
}
]
}
],
"package": {
"name": "apache2",
"purl": "pkg:apk/alpine/apache2?arch=source",
"ecosystem": "Alpine:v3.22"
},
"database_specific": {
"source": "https://storage.googleapis.com/cve-osv-conversion/alpine/ALPINE-CVE-2026-63686.json"
},
"ecosystem_specific": {}
},
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
},
{
"fixed": "2.4.69-r0"
}
]
}
],
"package": {
"name": "apache2",
"purl": "pkg:apk/alpine/apache2?arch=source",
"ecosystem": "Alpine:v3.23"
},
"database_specific": {
"source": "https://storage.googleapis.com/cve-osv-conversion/alpine/ALPINE-CVE-2026-63686.json"
},
"ecosystem_specific": {}
},
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
},
{
"fixed": "2.4.69-r0"
}
]
}
],
"package": {
"name": "apache2",
"purl": "pkg:apk/alpine/apache2?arch=source",
"ecosystem": "Alpine:v3.24"
},
"database_specific": {
"source": "https://storage.googleapis.com/cve-osv-conversion/alpine/ALPINE-CVE-2026-63686.json"
},
"ecosystem_specific": {}
}
]- Related CVEs
- CVE-2026-63686
Source reference:
/upstream
Publisher severity
high
Source reference: /severity/0/score
- Event
- #72936 · Revision 1
- Added to Heist Feed
- Publisher date