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Fencer Vulns
high 8.2

CVE-2026-34045 json

Podman Desktop WebView Server Exposed

published 2026-04-07 7 mo ago modified 2026-07-24 3 mo ago also EUVD-2026-19943

cvss
8.2
version 3.1, CNA
cisa kev
Not listed
not in CISA's catalog
epss
0.5%
EPSS 0.5% chance of exploitation in 30 days, percentile 41%
public exploits
0
none known

Summary

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.

Patch / fix

  • Red Hat Red Hat Enterprise Linux 10 0:1.0.1-4.el10_1
  • rh-podman-desktop RHEL 10.1 1.0.1-4.el10_1

red hat advisories RHSA-2026:13867

Vendor advisories

What the vendors themselves say about their products: affected, fixed or not affected, and what to do.

red hat product security vex CVE-2026-34045 updated cvss 8.2

podman-desktop: Podman Desktop: Denial of Service and Information Disclosure via unauthenticated HTTP server

  • Red Hat Build of Podman Desktop podman-desktop-macos-1-0, podman-desktop-windows-1-0
    affected: workaround, no fix available
  • Red Hat Build of Podman Desktop - Tech Preview rhdesktop/rh-podman-desktop-ext-rhel-rhel10, rhdesktop/rh-podman-desktop-ext-bootc-rhel10, rhdesktop/rh-podman-desktop-ext-sandbox-rhel10, rhdesktop/rh-podman-desktop-ext-redhat-account-rhel10, rhdesktop/rh-podman-desktop-ext-openshift-local-rhel10
    affected: workaround, no fix available, no fix planned “Will not fix”
  • Red Hat Enterprise Linux 10 podman-desktop
    affected: workaround, no fix planned “Out of support scope”
  • Red Hat Enterprise Linux Extensions Channel (v. 10) rh-podman-desktop 1.0.1-4.el10_1
    fixed: vendor fix RHSA-2026:13867

Red Hat CSAF VEX © Red Hat, Inc., from https://security.access.redhat.com/data/csaf/v2/vex/; changed: reduced to product statuses and remediations. CC BY 4.0 · csaf

CISA SSVC

Exploitation
Proof of concept is public
Automatable
yes
Technical impact
partial
Assessed
7 mo ago

Exploit prediction

0.48% chance of exploitation in the next 30 days, higher than 41% of all scored CVEs (FIRST EPSS, 2026-11-08).

Exploits and checks

  • github.com https://github.com/podman-desktop/podman-desktop/security/advisories/GHSA-2q88-39rh-gxvv referenced PoC, tagged "exploit" by a source, unverified

CVSS scores

assigned by version score vector
CNA 3.1 8.2 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:H
CISA ADP 3.1 8.2 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:H
NVD 3.1 9.1 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H

Affected products

  • podman-desktop podman-desktop
  • Red Hat Red Hat Enterprise Linux 10
  • Red Hat Red Hat Build of Podman Desktop
  • Red Hat Red Hat Build of Podman Desktop - Tech Preview

Classification

Weakness
  • CWE-209 Generation of Error Message Containing Sensitive Information
  • CWE-400 Uncontrolled Resource Consumption
  • CWE-284 Improper Access Control
  • CWE-770 Allocation of Resources Without Limits or Throttling

References

Sources

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.

CPEs and fixed versions use Anchore's correction of NVD's data: Added CPE configurations because not yet analyzed by NVD.