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CVE-2022-21682

24
FAUCET Score

CVE-2022-21682 is a path traversal vulnerability affecting Flatpak versions prior to 1.12.3 and 1.10.6, specifically impacting flatpak-builder when using the --mirror-screenshots-url option. This flaw allows for the creation of empty directories in arbitrary locations where the user has write permissions, and a malicious application could potentially replace the appstream-util binary to execute more hostile actions. With a CVSS score of 6.5 (MEDIUM), it has a network attack vector and low attack complexity, with a high impact on integrity but no impact on confidentiality or availability. There is currently no evidence of active exploitation, public exploit code (Metasploit, Nuclei, ExploitDB), or significant community discussion or media coverage.

Impacted Technologies

VendorProductVersion(s)CPE
< 1.10.7CPE matchmatch criteria
cpe:2.3:a:flatpak:flatpak:*:*:*:*:*:*:*:*
>= 1.11.1, < 1.12.4CPE matchmatch criteria
cpe:2.3:a:flatpak:flatpak:*:*:*:*:*:*:*:*
< 1.2.2CPE matchmatch criteria
cpe:2.3:a:flatpak:flatpak-builder:*:*:*:*:*:*:*:*
35CPE matchmatch criteria
cpe:2.3:o:fedoraproject:fedora:35:*:*:*:*:*:*:*
8.0CPE matchmatch criteria
cpe:2.3:o:redhat:enterprise_linux:8.0:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.1

7.7HIGH

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

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
LOW
User Interaction
NONE
Scope
CHANGED
Confidentiality Impact
NONE
Integrity Impact
HIGH
Availability Impact
NONE
Exploitability Score
3.1
Impact Score
4.0
CvssVersion
3.1

Exploit Intelligence

EPSS Score
1.67%
Probability of exploitation in next 30 days
EPSS Percentile
74.3%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0167 is in the 87th percentile among its peer group of 21,958 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.1 Bluesky, 0.0 Mastodon, and 0.1 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.0 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Patch Available

Vendor Patches (2)

github_advisorypatch availablevia nvd_reference
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 8Fixed in: flatpak-builder-0:1.0.14-2.el8
View patch

Vendor Advisories (1)

redhatCVE-2022-21682Moderate

flatpak: flatpak-builder --mirror-screenshots-url can access files outside the build directory

Jan 12, 2022

References

github.com / flatpak/flatpak/commit/445bddeee657fdc8d2a0a1f0de12975400d4fc1a
PatchThird Party Advisory
github.com / flatpak/flatpak/commit/4d11f77aa7fd3e64cfa80af89d92567ab9e8e6fa
PatchThird Party Advisory
github.com / flatpak/flatpak/security/advisories/GHSA-8ch7-5j3h-g4fx
PatchThird Party Advisory
lists.fedoraproject.org / archives/list/package-announce%40lists.fedoraproject.org/message/APFTBYGJJVJPFVHRXUW5PII5XOAFI4KH
lists.fedoraproject.org / archives/list/package-announce%40lists.fedoraproject.org/message/IXKBERLJRYV7KXKGXOLI6IOXVBQNN4DP
security.gentoo.org / glsa/202312-12
debian.org / security/2022/dsa-5049
Third Party Advisory