CVE-2026-24835
Description
A flaw was found in Podman Desktop. The isAccessAllowed() unconditionally returns true, enabling malicious extensions to impersonate any user, hijack authentication sessions and access sensitive resources without authorization. This authentication bypass allows any extension to completely circumvent permission checks and gain unauthorized access to all authentication sessions.
Statement
To exploit this vulnerability, an attacker needs to convince a user to download and install a specially crafted extension. Due to this reason, this flaw has been rated with a moderate severity.
Mitigation
To mitigate this flaw, disable custom extension installation and hide the public extension marketplace by adding or updating the following configuration in the settings.json file:
"extensions.customExtensions.enabled": false,
"extensions.catalog.enabled": false
Common Vulnerability Scoring System (CVSS) Score Details
Info alert:Important note
CVSS scores for open source components depend on vendor-specific factors (e.g. version or build chain). Therefore, Red Hat's score and impact rating can be different from NVD and other vendors. Red Hat remains the authoritative CVE Naming Authority (CNA) source for its products and services (see Red Hat classifications).
The following CVSS metrics and score provided are preliminary and subject to review.
CVSS v3 Score Breakdown
| Red Hat | NVD | cve.org | |
|---|---|---|---|
| Base Score | 7.1 | 7.1 | N/A |
| Attack Vector | Local | Local | N/A |
| Attack Complexity | Low | Low | N/A |
| Privileges Required | None | Low | N/A |
| User Interaction | Required | None | N/A |
| Scope | Unchanged | Unchanged | N/A |
| Confidentiality | High | High | N/A |
| Integrity Impact | High | High | N/A |
| Availability Impact | None | None | N/A |
Vector
Red Hat: CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:N
NVD: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N
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