The OCI delta stream parser read sizes as guint64 but passed them to GLib I/O and allocation functions expecting gsize (32 bits on 32-bit systems), causing undersized allocations while subsequent operations use the original 64-bit size, leading to heap buffer overflows. An attacker controlling an OCI registry can craft a delta stream that triggers this during flatpak install/update, potentially achieving code execution on 32-bit systems.
Metrics
Affected Vendors & Products
References
History
Mon, 12 Oct 2026 16:45:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| CPEs | cpe:/a:redhat:enterprise_linux:8::appstream cpe:/a:redhat:enterprise_linux:8::crb |
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| References |
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Mon, 12 Oct 2026 08:15:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| CPEs | cpe:/a:redhat:enterprise_linux:9::appstream cpe:/a:redhat:enterprise_linux:9::crb |
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| References |
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Mon, 12 Oct 2026 04:30:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| Metrics |
ssvc
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Mon, 12 Oct 2026 03:45:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| CPEs | cpe:/o:redhat:enterprise_linux:10.2 | |
| References |
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Mon, 28 Sep 2026 16:45:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| First Time appeared |
Flatpak
Flatpak flatpak |
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| Vendors & Products |
Flatpak
Flatpak flatpak |
Sun, 27 Sep 2026 21:15:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| Metrics |
cvssV3_1
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Sun, 27 Sep 2026 20:30:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| Description | The OCI delta stream parser read sizes as guint64 but passed them to GLib I/O and allocation functions expecting gsize (32 bits on 32-bit systems), causing undersized allocations while subsequent operations use the original 64-bit size, leading to heap buffer overflows. An attacker controlling an OCI registry can craft a delta stream that triggers this during flatpak install/update, potentially achieving code execution on 32-bit systems. | |
| Title | Flatpak: flatpak: buffer overflow in oci delta stream path names on 32-bit systems | |
| First Time appeared |
Redhat
Redhat enterprise Linux |
|
| Weaknesses | CWE-197 | |
| CPEs | cpe:/o:redhat:enterprise_linux:10 cpe:/o:redhat:enterprise_linux:7 cpe:/o:redhat:enterprise_linux:8 cpe:/o:redhat:enterprise_linux:9 |
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| Vendors & Products |
Redhat
Redhat enterprise Linux |
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| References |
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Status: PUBLISHED
Assigner: redhat
Published: 2026-09-27T20:19:12.890Z
Updated: 2026-10-12T16:25:45.209Z
Reserved: 2026-09-22T20:43:35.900Z
Link: CVE-2026-96280
Updated: 2026-09-29T15:50:53.276Z
Status : Awaiting Analysis
Published: 2026-09-27T21:17:04.200
Modified: 2026-10-12T17:17:39.117
Link: CVE-2026-96280
No data.