Important: buildah security update
The buildah package provides a tool for facilitating building OCI container images. Among other things, buildah enables you to: Create a working container, either from scratch or using an image as a starting point; Create an image, either from a working container or using the instructions in a Dockerfile; Build both Docker and OCI images. Security Fix(es): * buildah: Go net/[http:](http:) Unencrypted HTTP/2 connections vulnerable to Denial of Service (CVE-2026-56853) * buildah: Go html/template: Cross-Site Scripting via pathological input (CVE-2026-56858) * buildah: Go encoding/asn1: Denial of Service via excessive recursion in Unmarshal (CVE-2026-33818) * buildah: golang net/url: Denial of Service from quadratic complexity in path resolution (CVE-2026-56860) * buildah: Golang crypto/tls: Denial of Service via indefinite KeyUpdate messages (CVE-2026-56862) For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.
ALSA-2026:70640
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:ALSA-2026:70640
buildah
Source reference: /affected/0/package/name
- Affected versions
- Not stated in this record
- Fixed versions
- 2:1.43.3-2.el9_8
Source reference:
/affected/0/ranges - Prerequisites
- Not stated in this record
buildah-tests
Source reference: /affected/1/package/name
- Affected versions
- Not stated in this record
- Fixed versions
- 2:1.43.3-2.el9_8
Source reference:
/affected/1/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": "2:1.43.3-2.el9_8"
}
]
}
],
"package": {
"name": "buildah",
"purl": "pkg:rpm/almalinux/buildah",
"ecosystem": "AlmaLinux:9"
},
"database_specific": {
"source": "https://github.com/AlmaLinux/osv-database/blob/master/advisories/almalinux9/ALSA-2026:70640.json"
}
},
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
},
{
"fixed": "2:1.43.3-2.el9_8"
}
]
}
],
"package": {
"name": "buildah-tests",
"purl": "pkg:rpm/almalinux/buildah-tests",
"ecosystem": "AlmaLinux:9"
},
"database_specific": {
"source": "https://github.com/AlmaLinux/osv-database/blob/master/advisories/almalinux9/ALSA-2026:70640.json"
}
}
]Publisher severity
No explicit severity was provided.
- Event
- #13761 · Revision 1
- Added to Heist Feed
- Publisher date