Podman Desktop WebView Server Exposed
Summary
| CVE | CVE-2026-34045 |
|---|---|
| State | PUBLISHED |
| Assigner | GitHub_M |
| Source Priority | CVE Program / NVD first with legacy fallback |
| Published | 2026-04-07 21:17:17 UTC |
| Updated | 2026-06-30 03:18:51 UTC |
| Description | Podman Desktop is a graphical tool for developing on containers and Kubernetes. Prior to 1.26.2, an unauthenticated HTTP server exposed by Podman Desktop allows any network attacker to remotely trigger denial-of-service conditions and extract sensitive information. By abusing missing connection limits and timeouts, an attacker can exhaust file descriptors and kernel memory, leading to application crash or full host freeze. Additionally, verbose error responses disclose internal paths and system details (including usernames on Windows), aiding further exploitation. The issue requires no authentication or user interaction and is exploitable over the network. This vulnerability is fixed in 1.26.2. |
Risk And Classification
Primary CVSS: v3.1 9.1 CRITICAL from [email protected]
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H
EPSS: 0.004740000 probability, percentile 0.375740000 (date 2026-07-02)
Problem Types: CWE-209 | CWE-284 | CWE-400 | CWE-770 | CWE-209 CWE-209: Generation of Error Message Containing Sensitive Information | CWE-400 CWE-400: Uncontrolled Resource Consumption | CWE-284 CWE-284: Improper Access Control | CWE-770 Allocation of Resources Without Limits or Throttling
| Version | Source | Type | Score | Severity | Vector |
|---|---|---|---|---|---|
| 3.1 | [email protected] | Primary | 9.1 | CRITICAL | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H |
| 3.1 | ADP | CVSS | 8.2 | HIGH | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:H |
| 3.1 | [email protected] | Secondary | 8.2 | HIGH | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:H |
| 3.1 | 0b0ca135-0b70-47e7-9f44-1890c2a1c46c | Secondary | 8.2 | HIGH | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:H |
| 3.1 | CNA | DECLARED | 8.2 | HIGH | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:H |
CVSS v3.1 Breakdown
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H
NVD Known Affected Configurations (CPE 2.3)
| Type | Vendor | Product | Version | Update | Edition | Language |
|---|---|---|---|---|---|---|
| Application | Linuxfoundation | Podman Desktop | All | All | All | All |
Vendor Declared Affected Products
| Source | Vendor | Product | Version | Platforms |
|---|---|---|---|---|
| CNA | Podman-desktop | Podman-desktop | affected < 1.26.2 | Not specified |
| ADP | Red Hat | Red Hat Enterprise Linux Extensions Channel V. 10 | Not specified | Not specified |
| ADP | Red Hat | Red Hat Build Of Podman Desktop | Not specified | Not specified |
| ADP | Red Hat | Red Hat Build Of Podman Desktop - Tech Preview | Not specified | Not specified |
| ADP | Red Hat | Red Hat Enterprise Linux 10 | Not specified | Not specified |
References
| Reference | Source | Link | Tags |
|---|---|---|---|
| github.com/podman-desktop/podman-desktop/security/advisories/GHSA-2q88-3... | 134c704f-9b21-4f2e-91b3-4a467353bcc0 | github.com | Exploit, Vendor Advisory |
| access.redhat.com/errata/RHSA-2026:13867 | 0b0ca135-0b70-47e7-9f44-1890c2a1c46c | access.redhat.com | |
| bugzilla.redhat.com/show_bug.cgi | 0b0ca135-0b70-47e7-9f44-1890c2a1c46c | bugzilla.redhat.com | |
| security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-34045.json | 0b0ca135-0b70-47e7-9f44-1890c2a1c46c | security.access.redhat.com | |
| access.redhat.com/security/cve/CVE-2026-34045 | 0b0ca135-0b70-47e7-9f44-1890c2a1c46c | access.redhat.com | |
| CVE Program record | CVE.ORG | www.cve.org | canonical |
| NVD vulnerability detail | NVD | nvd.nist.gov | canonical, analysis |
Additional Advisory Data
| Source | Time | Event |
|---|---|---|
| ADP | 2026-04-07T22:01:34.821Z | Reported to Red Hat. |
| ADP | 2026-04-07T20:52:32.438Z | Made public. |
Solutions
ADP: RHSA-2026:13867: Red Hat Enterprise Linux Extensions Channel (v. 10)
Workarounds
ADP: Restrict network access to the system running Podman Desktop. Configure a firewall to block incoming connections to the ports used by Podman Desktop's unauthenticated HTTP server from untrusted networks. For example, using `firewall-cmd` on Red Hat Enterprise Linux: ```bash sudo firewall-cmd --permanent --add-rich-rule='rule family="ipv4" port port=<PORT_NUMBER> protocol="tcp" reject' sudo firewall-cmd --reload ``` Replace `<PORT_NUMBER>` with the actual port used by Podman Desktop. This mitigation limits the attack surface and prevents remote exploitation, but may impact the ability to remotely manage or interact with Podman Desktop.