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CVE-2026-96284— Flatpak: flatpak: arbitrary read-access to files in the system-helper context via oci symlink following

Quick assessment

Affected
Red Hat Red Hat Enterprise Linux 10
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

在配置了系统 OCI 仓库的情况下，恶意用户可以在 flatpak-system-helper 的上下文中获取对相关文件的读取权限，因为系统 helper 中用于导入 OCI 镜像的代码路径在受用户控制的镜像导入过程中会跟随符号链接。

CVSS 2.5 · Low
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I. Basic Information for CVE-2026-96284

Vulnerability Information
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Vulnerability Title
Flatpak: flatpak: arbitrary read-access to files in the system-helper context via oci symlink following
Source: CVE Program / CVE List V5
Vulnerability Description
A malicious user can get read-access to files in the flatpak-system-helper context if a system OCI repository is configured, because the OCI code paths in the system helper follow symlinks when importing OCI images that are under the user's control.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:L/I:N/A:N
Source: CVE Program / CVE List V5
Vulnerability Type
在文件访问前对链接解析不恰当(链接跟随)
Source: CVE Program / CVE List V5

Affected Products

Vendor Product Affected Versions CPE Subscribe
Red Hat Red Hat Enterprise Linux 10 - cpe:/o:redhat:enterprise_linux:10
Red Hat Red Hat Enterprise Linux 7 - cpe:/o:redhat:enterprise_linux:7
Red Hat Red Hat Enterprise Linux 8 - cpe:/o:redhat:enterprise_linux:8
Red Hat Red Hat Enterprise Linux 9 - cpe:/o:redhat:enterprise_linux:9

II. Public POCs for CVE-2026-96284

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III. Intelligence Information for CVE-2026-96284

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Other References for CVE-2026-96284 (3)

Same Patch Batch · Red Hat · 2026-09-27 · 6 CVEs total

CVE-2026-96280 7.5 HIGH Flatpak: flatpak: buffer overflow in oci delta stream path names on 32-bit systems
CVE-2026-96279 6.5 MEDIUM Flatpak: flatpak: path traversal issue in oci archive extraction via hardlinks
CVE-2026-96281 6.2 MEDIUM Flatpak: flatpak: unprivileged active user can bypass anti-downgrade checks for system app
CVE-2026-96283 3.3 LOW Flatpak: flatpak: flatpak-system-helper cross-user cancelpull orphans another user's ongoi
CVE-2026-96282 3.1 LOW Flatpak: flatpak: extension metadata path traversal file existence oracle

IV. Related Vulnerabilities

Same product: Red Hat Enterprise Linux 10
Same vendor: Red Hat
Same weakness: CWE-59

V. Comments for CVE-2026-96284

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