CVE-2021-43860 is a high-severity vulnerability in Flatpak, a Linux application sandboxing framework, affecting versions prior to 1.12.3 and 1.10.6, including those distributed by Debian, Fedora, and Red Hat. This flaw allows malicious applications to gain hidden permissions without user consent by exploiting a null byte in the app's metadata file, leading to a discrepancy between displayed and actual runtime permissions. The vulnerability has a CVSS score of 8.6 (High) due to its potential for complete compromise of confidentiality, integrity, and availability, requiring user interaction (UI:R) to install a crafted application. There is currently no evidence of active exploitation, nor are there publicly available exploit modules or significant community discussion surrounding this CVE.
| Vendor | Product | Version(s) | CPE |
|---|---|---|---|
< 1.10.6CPE matchmatch criteria | cpe:2.3:a:flatpak:flatpak:*:*:*:*:*:*:*:* | ||
>= 1.11.1, <= 1.12.3CPE matchmatch criteria | cpe:2.3:a:flatpak:flatpak:*:*:*:*:*:*:*:* | ||
35CPE matchmatch criteria | cpe:2.3:o:fedoraproject:fedora:35:*:*:*:*:*:*:* | ||
8.0CPE matchmatch criteria | cpe:2.3:o:redhat:enterprise_linux:8.0:*:*:*:*:*:*:* | ||
9.0CPE matchmatch criteria | cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:* |
CVSS version used by this source: 3.1
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:N
The average CVE in this peer group has 0.0 Twitter, 0.1 Reddit, 0.1 Bluesky, 0.0 Mastodon, and 0.2 GitHub mentions.
No media coverage found for this CVE.
The average CVE in this peer group has 0.3 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.