Security Advisory catalog CVE-2026-96280 Historical advisory recorded 2 Nov 2026 13:57:17 UTC. Read the latest advisory .
cve-program · CVE-2026-96280 Published
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.
Read the publisher's advisory Affected versions, risk and source history
cve-program · CVE-2026-96280 Published flatpak https://access.redhat.com/downloads/content/package-browser/
Publisher's version information Shown as published. These rules are not interpreted as NuGet package version ranges.
{
"vendor": "Red Hat",
"product": "Red Hat Enterprise Linux 10",
"collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
"packageName": "flatpak",
"defaultStatus": "affected",
"versions": [
{
"version": "0:1.16.0-9.el10_2.4",
"lessThan": "*",
"versionType": "rpm",
"status": "unaffected"
}
],
"cpes": [
"cpe:/o:redhat:enterprise_linux:10.2"
]
} flatpak https://access.redhat.com/downloads/content/package-browser/
Publisher's version information Shown as published. These rules are not interpreted as NuGet package version ranges.
{
"vendor": "Red Hat",
"product": "Red Hat Enterprise Linux 10.0 Extended Update Support",
"collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
"packageName": "flatpak",
"defaultStatus": "affected",
"versions": [
{
"version": "0:1.16.0-5.el10_0.6",
"lessThan": "*",
"versionType": "rpm",
"status": "unaffected"
}
],
"cpes": [
"cpe:/o:redhat:enterprise_linux_eus:10.0"
]
} flatpak https://access.redhat.com/downloads/content/package-browser/
Publisher's version information Shown as published. These rules are not interpreted as NuGet package version ranges.
{
"vendor": "Red Hat",
"product": "Red Hat Enterprise Linux 8",
"collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
"packageName": "flatpak",
"defaultStatus": "affected",
"versions": [
{
"version": "0:1.12.9-7.el8_10",
"lessThan": "*",
"versionType": "rpm",
"status": "unaffected"
}
],
"cpes": [
"cpe:/a:redhat:enterprise_linux:8::appstream",
"cpe:/a:redhat:enterprise_linux:8::crb"
]
} flatpak https://access.redhat.com/downloads/content/package-browser/
Publisher's version information Shown as published. These rules are not interpreted as NuGet package version ranges.
{
"vendor": "Red Hat",
"product": "Red Hat Enterprise Linux 9",
"collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
"packageName": "flatpak",
"defaultStatus": "affected",
"versions": [
{
"version": "0:1.12.9-4.el9_8.4",
"lessThan": "*",
"versionType": "rpm",
"status": "unaffected"
}
],
"cpes": [
"cpe:/a:redhat:enterprise_linux:9::appstream",
"cpe:/a:redhat:enterprise_linux:9::crb"
]
} flatpak https://access.redhat.com/downloads/content/package-browser/
Publisher's version information Shown as published. These rules are not interpreted as NuGet package version ranges.
{
"vendor": "Red Hat",
"product": "Red Hat Enterprise Linux 9.2 Update Services for SAP Solutions",
"collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
"packageName": "flatpak",
"defaultStatus": "affected",
"versions": [
{
"version": "0:1.12.7-5.el9_2.5",
"lessThan": "*",
"versionType": "rpm",
"status": "unaffected"
}
],
"cpes": [
"cpe:/a:redhat:rhel_e4s:9.2::appstream"
]
} flatpak https://access.redhat.com/downloads/content/package-browser/
Publisher's version information Shown as published. These rules are not interpreted as NuGet package version ranges.
{
"vendor": "Red Hat",
"product": "Red Hat Enterprise Linux 9.4 Update Services for SAP Solutions",
"collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
"packageName": "flatpak",
"defaultStatus": "affected",
"versions": [
{
"version": "0:1.12.9-3.el9_4.5",
"lessThan": "*",
"versionType": "rpm",
"status": "unaffected"
}
],
"cpes": [
"cpe:/a:redhat:rhel_e4s:9.4::appstream"
]
} flatpak https://access.redhat.com/downloads/content/package-browser/
Publisher's version information Shown as published. These rules are not interpreted as NuGet package version ranges.
{
"vendor": "Red Hat",
"product": "Red Hat Enterprise Linux 9.6 Extended Update Support",
"collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
"packageName": "flatpak",
"defaultStatus": "affected",
"versions": [
{
"version": "0:1.12.9-4.el9_6.5",
"lessThan": "*",
"versionType": "rpm",
"status": "unaffected"
}
],
"cpes": [
"cpe:/a:redhat:rhel_eus:9.6::appstream",
"cpe:/a:redhat:rhel_eus:9.6::crb"
]
} flatpak https://access.redhat.com/downloads/content/package-browser/
Publisher's version information Shown as published. These rules are not interpreted as NuGet package version ranges.
{
"vendor": "Red Hat",
"product": "Red Hat Enterprise Linux 7",
"collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
"packageName": "flatpak",
"defaultStatus": "affected",
"cpes": [
"cpe:/o:redhat:enterprise_linux:7"
]
} Original source record · Cite this exact observation · Complete original publisher JSON