Netavark: podman: netavark may resolve hostnames to unexpected hosts

Summary

CVE	CVE-2025-8283
State	PUBLISHED
Assigner	redhat
Source Priority	CVE Program / NVD first with legacy fallback
Published	2025-07-28 19:15:43 UTC
Updated	2026-05-19 17:16:21 UTC
Description	A vulnerability was found in the netavark package, a network stack for containers used with Podman. Due to dns.podman search domain being removed, netavark may return external servers if a valid A/AAAA record is sent as a response. When creating a container with a given name, this name will be used as the hostname for the container itself, as the podman's search domain is not added anymore the container is using the host's resolv.conf, and the DNS resolver will try to look into the search domains contained on it. If one of the domains contain a name with the same hostname as the running container, the connection will forward to unexpected external servers.

Risk And Classification

Primary CVSS: v3.1 3.7 LOW from [email protected]

CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:N

EPSS: 0.003220000 probability, percentile 0.552490000 (date 2026-05-26)

Problem Types: CWE-15 | CWE-15 External Control of System or Configuration Setting

Version	Source	Type	Score	Severity	Vector
3.1	[email protected]	Primary	3.7	LOW	`CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:N`
3.1	[email protected]	Secondary	3.7	LOW	`CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:N`
3.1	CNA	CVSS	3.7	LOW	`CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:N`

CVSS v3.1 Breakdown

Attack Vector

Network

Attack Complexity

High

Privileges Required

None

User Interaction

None

Scope

Unchanged

Confidentiality

Low

Integrity

None

Availability

None

CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:N

NVD Known Affected Configurations (CPE 2.3)

Type	Vendor	Product	Version	Update	Edition	Language
Operating System	Redhat	Enterprise Linux	10.0	All	All	All
Operating System	Redhat	Enterprise Linux	8.0	All	All	All
Operating System	Redhat	Enterprise Linux	9.0	All	All	All
Application	Redhat	Openshift Container Platform	4.0	All	All	All

Vendor Declared Affected Products

Source	Vendor	Product	Version	Platforms
CNA	Red Hat	Red Hat Enterprise Linux 10	Not specified	Not specified
CNA	Red Hat	Red Hat Enterprise Linux 8	Not specified	Not specified
CNA	Red Hat	Red Hat Enterprise Linux 8	Not specified	Not specified
CNA	Red Hat	Red Hat Enterprise Linux 9	Not specified	Not specified
CNA	Red Hat	Red Hat OpenShift Container Platform 4	Not specified	Not specified

References

Reference	Source	Link	Tags
access.redhat.com/security/cve/CVE-2025-8283	[email protected]	access.redhat.com	Vendor Advisory
github.com/containers/netavark/releases/tag/v1.15.1	[email protected]	github.com
github.com/containers/podman/issues/2619	[email protected]	github.com
bugzilla.redhat.com/show_bug.cgi	[email protected]	bugzilla.redhat.com	Issue Tracking
github.com/advisories/GHSA-rpcf-rmh6-42xr	[email protected]	github.com
CVE Program record	CVE.ORG	www.cve.org	canonical
NVD vulnerability detail	NVD	nvd.nist.gov	canonical, analysis

Vendor Comments And Credit

Discovery Credit

CNA: Red Hat would like to thank Johannes Kasberger for reporting this issue. (en)

Additional Advisory Data

Source	Time	Event
CNA	2025-07-28T14:15:36.417Z	Reported to Red Hat.
CNA	2025-07-28T00:00:00.000Z	Made public.

Workarounds

CNA: As a proactive mitigation, configure containers to have hostnames formatted as <name>.dns.podman. This specific naming convention will prevent aardvark-dns from forwarding these queries to external search domains, thereby reducing potential exposure or unexpected network behavior associated with such queries.

There are currently no legacy QID mappings associated with this CVE.