Red Hat Security Advisory: flatpak security update
Two security vulnerabilities were identified in Flatpak, a system for building, distributing, and running sandboxed desktop applications on Linux. The first vulnerability (CVE-2026-34078) allows arbitrary code execution via crafted symlinks in sandbox-expose options. The second vulnerability (CVE-2026-34079) permits arbitrary file deletion on the host due to improper cache file path validation. These issues affect Red Hat Enterprise Linux Server Extended Life Cycle Support 7 on multiple architectures. Red Hat has issued a security update to address these vulnerabilities.
AI Analysis
Technical Summary
Flatpak, a system for building and running sandboxed desktop applications on Linux, has two security vulnerabilities identified as CVE-2026-34078 and CVE-2026-34079. CVE-2026-34078 allows arbitrary code execution through crafted symbolic links in sandbox-expose options. CVE-2026-34079 permits arbitrary file deletion on the host system due to improper validation of cache file paths. Red Hat has released security updates for Flatpak on Red Hat Enterprise Linux 10 and related products to address these issues. The advisory RHSA-2026:21757 provides details on the fixes and affected packages.
Potential Impact
Successful exploitation of CVE-2026-34078 could allow an attacker to execute arbitrary code within the Flatpak sandbox environment by leveraging crafted symlinks. CVE-2026-34079 could enable an attacker to delete arbitrary files on the host system due to improper cache file path validation. Both vulnerabilities pose significant risks to system integrity and security on affected Red Hat Enterprise Linux 10 systems.
Mitigation Recommendations
Red Hat has released security updates for Flatpak in Red Hat Enterprise Linux 10 and related CodeReady Linux Builder 10 products that address these vulnerabilities. Users should apply the updates as described in Red Hat advisory RHSA-2026:21757 and the referenced article https://access.redhat.com/articles/11258 to remediate these issues. No additional mitigations are indicated beyond applying the official patches.
Red Hat Security Advisory: flatpak security update
Description
Two security vulnerabilities were identified in Flatpak, a system for building, distributing, and running sandboxed desktop applications on Linux. The first vulnerability (CVE-2026-34078) allows arbitrary code execution via crafted symlinks in sandbox-expose options. The second vulnerability (CVE-2026-34079) permits arbitrary file deletion on the host due to improper cache file path validation. These issues affect Red Hat Enterprise Linux Server Extended Life Cycle Support 7 on multiple architectures. Red Hat has issued a security update to address these vulnerabilities.
Affected software
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
Flatpak, a system for building and running sandboxed desktop applications on Linux, has two security vulnerabilities identified as CVE-2026-34078 and CVE-2026-34079. CVE-2026-34078 allows arbitrary code execution through crafted symbolic links in sandbox-expose options. CVE-2026-34079 permits arbitrary file deletion on the host system due to improper validation of cache file paths. Red Hat has released security updates for Flatpak on Red Hat Enterprise Linux 10 and related products to address these issues. The advisory RHSA-2026:21757 provides details on the fixes and affected packages.
Potential Impact
Successful exploitation of CVE-2026-34078 could allow an attacker to execute arbitrary code within the Flatpak sandbox environment by leveraging crafted symlinks. CVE-2026-34079 could enable an attacker to delete arbitrary files on the host system due to improper cache file path validation. Both vulnerabilities pose significant risks to system integrity and security on affected Red Hat Enterprise Linux 10 systems.
Mitigation Recommendations
Red Hat has released security updates for Flatpak in Red Hat Enterprise Linux 10 and related CodeReady Linux Builder 10 products that address these vulnerabilities. Users should apply the updates as described in Red Hat advisory RHSA-2026:21757 and the referenced article https://access.redhat.com/articles/11258 to remediate these issues. No additional mitigations are indicated beyond applying the official patches.
Technical Details
- Gcve Source
- db.gcve.eu
- Csaf Category
- csaf_security_advisory
- Csaf Version
- 2.0
- Publisher
- Red Hat Product Security
- Advisory Id
- RHSA-2026:21757
- Cve Count
- 2
- Additional Cves
- ["CVE-2026-34079"]
- Cvss Version
- null
Threat ID: 6a18be67e29bf47b503869f6
Added to database: 05/28/2026, 22:15:03 UTC
Last enriched: 07/07/2026, 00:51:17 UTC
Last updated: 07/31/2026, 19:22:58 UTC
Views: 56
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