A flaw was found in flatpak-builder where Git hooks are not disabled when applying patch sources with use-git-am: true. An attacker who can provide a malicious source containing a Git post-applypatch hook can cause the hook to execute on the host during the build process, resulting in arbitrary code execution with the privileges of the user running flatpak-builder.
Metrics
Affected Vendors & Products
References
History
Wed, 21 Oct 2026 11:30:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| First Time appeared |
Redhat rhel Tus
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| CPEs | cpe:/a:redhat:rhel_e4s:8.8::appstream cpe:/a:redhat:rhel_tus:8.8::appstream |
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| Vendors & Products |
Redhat rhel Tus
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| References |
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Mon, 19 Oct 2026 12:45:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| First Time appeared |
Redhat rhel E4s
Redhat rhel Eus |
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| CPEs | cpe:/a:redhat:rhel_e4s:9.2::appstream cpe:/a:redhat:rhel_e4s:9.4::appstream cpe:/a:redhat:rhel_eus:9.6::appstream |
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| Vendors & Products |
Redhat rhel E4s
Redhat rhel Eus |
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| References |
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Mon, 19 Oct 2026 12:30:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| First Time appeared |
Redhat enterprise Linux Eus
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| CPEs | cpe:/o:redhat:enterprise_linux_eus:10.0 | |
| Vendors & Products |
Redhat enterprise Linux Eus
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| References |
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Mon, 12 Oct 2026 20:30:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| CPEs | cpe:/a:redhat:enterprise_linux:8::appstream | |
| References |
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Mon, 12 Oct 2026 03:00:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| CPEs | cpe:/o:redhat:enterprise_linux:9 |
cpe:/a:redhat:enterprise_linux:9::appstream cpe:/o:redhat:enterprise_linux:10.2 |
| References |
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Thu, 17 Sep 2026 16:30:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| Metrics |
ssvc
|
Thu, 17 Sep 2026 08:45:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| CPEs | cpe:/o:redhat:enterprise_linux:8 cpe:/o:redhat:enterprise_linux:9 |
Thu, 17 Sep 2026 07:30:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| Description | A flaw was found in flatpak-builder where Git hooks are not disabled when applying patch sources with use-git-am: true. An attacker who can provide a malicious source containing a Git post-applypatch hook can cause the hook to execute on the host during the build process, resulting in arbitrary code execution with the privileges of the user running flatpak-builder. | |
| Title | Flatpak-builder: host code execution via `git am` hook execution in patch source extraction (`use-git-am`) | |
| First Time appeared |
Redhat
Redhat enterprise Linux |
|
| Weaknesses | CWE-94 | |
| CPEs | cpe:/o:redhat:enterprise_linux:10 | |
| Vendors & Products |
Redhat
Redhat enterprise Linux |
|
| References |
| |
| Metrics |
cvssV3_1
|
Status: PUBLISHED
Assigner: redhat
Published: 2026-09-17T07:27:33.167Z
Updated: 2026-10-21T11:21:31.111Z
Reserved: 2026-09-07T05:35:25.012Z
Link: CVE-2026-86320
Updated: 2026-09-17T15:42:29.021Z
Status : Awaiting Analysis
Published: 2026-09-17T08:17:02.200
Modified: 2026-10-21T12:17:24.413
Link: CVE-2026-86320
No data.