Flatpak before 1.0.7, and 1.1.x and 1.2.x before 1.2.3, exposes /proc in the apply_extra script sandbox, which allows attackers to modify a
Flatpak before 1.0.7, and 1.1.x and 1.2.x before 1.2.3, exposes /proc in the apply_extra script sandbox, which allows attackers to modify a host-side executable file.
- Published
- Feb 12, 2019
- Updated
- Jun 16, 2026
- EPSS
- 0.5% · 38th percentile
- CWE
- CWE-668
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Report tools
Action score
32
Monitor
Low priority for now.
- CVSS
- 32 / 40 · 8.2 / 10
- CISA KEV
- 0 / 30 · Not listed
- EPSS
- 0 / 30 · 0.5%
Noroxi analysis
No Noroxi analysis for this record yet
We don't hand-write analysis for the hundreds of thousands of vulnerabilities in the database; that wouldn't be honest. For notable, high-impact vulnerabilities our team writes the mechanism, detection and remediation steps.
We use this product, ask for helpAffected systems
| Vendor | Product | CPE |
|---|---|---|
| flatpak | flatpak | cpe:2.3:a:flatpak:flatpak |
| debian | debian linux | cpe:2.3:o:debian:debian_linux |
| redhat | enterprise linux desktop | cpe:2.3:o:redhat:enterprise_linux_desktop |
| redhat | enterprise linux server | cpe:2.3:o:redhat:enterprise_linux_server |
| redhat | enterprise linux server aus | cpe:2.3:o:redhat:enterprise_linux_server_aus |
| redhat | enterprise linux server eus | cpe:2.3:o:redhat:enterprise_linux_server_eus |
| redhat | enterprise linux server tus | cpe:2.3:o:redhat:enterprise_linux_server_tus |
| redhat | enterprise linux workstation | cpe:2.3:o:redhat:enterprise_linux_workstation |
Affected versions
NVD version ranges (for catalog products). Add the product to your stack with a version and matching uses these.
- debian debian linux10.0
- debian debian linux9.0
- flatpak flatpakbefore 1.0.7
- flatpak flatpak1.1.0 and later · up to 1.1.3 inclusive
- flatpak flatpak1.2.0 and later · up to 1.2.3 inclusive
- redhat enterprise linux desktop7.0
- redhat enterprise linux server7.0
- redhat enterprise linux server aus7.6
- redhat enterprise linux server eus7.6
- redhat enterprise linux server tus7.6
- redhat enterprise linux workstation7.0
Package-level exposure
OSV and GitHub Advisory data: ecosystem, package and range. SBOM matching uses this table.
| Ecosystem | Package | Affected range | Fix |
|---|---|---|---|
| Debian:12 | flatpak | before 1.2.3-1 | 1.2.3-1 |
| Debian:9 | flatpak | before 0.8.9-0+deb9u2 | 0.8.9-0+deb9u2 |
| openSUSE:Leap 15.0 | flatpak | before 0.10.4-lp150.8.1 | 0.10.4-lp150.8.1 |
| Red Hat:enterprise_linux:7::client | flatpak | before 0:1.0.2-4.el7_6 | 0:1.0.2-4.el7_6 |
| Red Hat:enterprise_linux:7::client | flatpak-builder | before 0:1.0.0-4.el7_6 | 0:1.0.0-4.el7_6 |
| Red Hat:enterprise_linux:7::client | flatpak-debuginfo | before 0:1.0.2-4.el7_6 | 0:1.0.2-4.el7_6 |
| Red Hat:enterprise_linux:7::client | flatpak-devel | before 0:1.0.2-4.el7_6 | 0:1.0.2-4.el7_6 |
| Red Hat:enterprise_linux:7::client | flatpak-libs | before 0:1.0.2-4.el7_6 | 0:1.0.2-4.el7_6 |
| SUSE:Linux Enterprise Module for Desktop Applications 15 | flatpak | before 0.10.4-4.10.1 | 0.10.4-4.10.1 |
Same product
flatpak: all recordsOther highest-scoring records for the same primary product.
- CVE-2024-42472Flatpak may allow access to files outside sandbox for certain apps40Plan
- CVE-2026-34078Flatpak has a complete sandbox escape leading to host file access and code execution in the host context37Monitor
- CVE-2019-10063Flatpak before 1.0.8, 1.1.x and 1.2.x before 1.2.4, and 1.3.x before 1.3.1 allows a sandbox bypass.37Monitor
- CVE-2021-21261Flatpak sandbox escape via spawn portal35Monitor
- CVE-2018-6560In dbus-proxy/flatpak-proxy.c in Flatpak before 0.8.9, and 0.9.x and 0.10.x before 0.10.3, crafted D-Bus messages to the host can be used to35Monitor
- CVE-2026-34079Flatpak affected by arbitrary file deletion on the host filesystem34Monitor
Remediation
Which version to upgrade to
Fix versions compiled from the vendor, package registries and Microsoft. Verify the vendor's note before upgrading.
| Product / package | Fixed version | Source |
|---|---|---|
| debian:flatpak | 1.2.3-1 · Debian:12 | Package registry (OSV) |
| opensuse:flatpak | 0.10.4-lp150.8.1 · openSUSE:Leap 15.0 | Package registry (OSV) |
| red hat:flatpak | 0:1.0.2-4.el7_6 · Red Hat:enterprise_linux:7::client | Package registry (OSV) |
| red hat:flatpak-builder | 0:1.0.0-4.el7_6 · Red Hat:enterprise_linux:7::client | Package registry (OSV) |
| red hat:flatpak-debuginfo | 0:1.0.2-4.el7_6 · Red Hat:enterprise_linux:7::client | Package registry (OSV) |
| red hat:flatpak-devel | 0:1.0.2-4.el7_6 · Red Hat:enterprise_linux:7::client | Package registry (OSV) |
| red hat:flatpak-libs | 0:1.0.2-4.el7_6 · Red Hat:enterprise_linux:7::client | Package registry (OSV) |
| suse:flatpak | 0.10.4-4.10.1 · SUSE:Linux Enterprise Module for Desktop Applications 15 | Package registry (OSV) |
Exploit status
No known public exploit
No public exploit has been observed yet. That doesn't mean you're safe, only that the bar is a little higher.
Research context
For pentesters and researchers: attack profile, score disagreement, timeline, patch commits, credits, variant and chain candidates, bug bounty scope. All derived from existing data; no exploit code.
Timeline
From publication to today: proof of concept, Metasploit module, CISA KEV and fix record. Dates are as reported by the sources.
No dated events beyond publication.
FIRST EPSS daily score; only changes of 0.01 or more are recorded (step chart).
Patch and commit links
Commit, PR and diff links among the references. A starting point for patch-diffing and variant hunting; fixes, not exploits.
No commit or PR link among the references.
Credits
All researchersFinders, reporters and analysts named in the CNA record. Click a name for that researcher’s other records.
No credits in the CNA record.
Variant candidates
Same product, same weakness class, within 18 months. If the patch missed the root cause, the sibling bug is here.
No nightly-computed relations.
Chain candidates
An authentication bypass and a privilege-requiring bug in the same product, published close together: combined they may become an unauthenticated path.
—
Bug bounty scope
No known public program.
Source: bounty-targets-data (public HackerOne, Bugcrowd, Intigriti, YesWeHack listings).
Technical details
Attack conditions
- Someone with local access to the system can trigger it.
- A low-privileged account is enough.
- A user must open a link or visit a page.
- No special conditions are required; it is repeatable.
If successful
- Confidentiality
- high · data can be read
- Integrity
- high · data or configuration can be modified
- Availability
- high · the service can be disrupted
Impact can extend beyond the vulnerable component (scope changes).
- Attack vector
- Local
- Attack complexity
- Low
- Privileges required
- Low
- User interaction
- Required
- Scope
- Changed
- Confidentiality impact
- High
- Integrity impact
- High
- Availability impact
- High
Weakness class (CWE)
CWE-668 · Exposure of Resource to Wrong SphereCVSS vector
CVSS:3.0/AV:L/AC:L/PR:L/UI:R/S:C/C:H/I:H/A:H
nvd-primary
Attack context
MITRE CAPEC attack patterns and ATT&CK techniques for this weakness class (CWE). A starting point for detection rules and threat hunting.
MITRE has no CAPEC/ATT&CK mapping for this CWE.
Change log
- Fix✗ → ✓
For records you follow, these changes also arrive as notifications. →
References
- lists.opensuse.org/opensuse-security-announce/2019-08/msg00088.html
- access.redhat.com/errata/RHSA-2019:0375
- bugs.debian.org/cgi-bin/bugreport.cgi?bug=922059
- github.com/flatpak/flatpak/releases/tag/1.0.7
- github.com/flatpak/flatpak/releases/tag/1.2.3
Vendor advisories and official records. Exploit/PoC links are deliberately left out.