248 lines
11 KiB
JSON
248 lines
11 KiB
JSON
{
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"dataType": "CVE_RECORD",
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"dataVersion": "5.2",
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"cveMetadata": {
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"cveId": "CVE-2026-33150",
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"assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
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"state": "PUBLISHED",
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"assignerShortName": "GitHub_M",
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"dateReserved": "2026-03-17T21:17:08.885Z",
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"datePublished": "2026-03-20T20:20:29.963Z",
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"dateUpdated": "2026-07-15T01:07:15.081Z"
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},
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"containers": {
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"cna": {
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"title": "Use After Free in libfuse",
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"problemTypes": [
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{
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"descriptions": [
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{
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"cweId": "CWE-416",
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"lang": "en",
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"description": "CWE-416: Use After Free",
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"type": "CWE"
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}
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]
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}
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],
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"metrics": [
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{
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"cvssV3_1": {
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"attackComplexity": "LOW",
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"attackVector": "LOCAL",
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"availabilityImpact": "HIGH",
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"baseScore": 7.8,
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"baseSeverity": "HIGH",
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"confidentialityImpact": "HIGH",
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"integrityImpact": "HIGH",
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"privilegesRequired": "LOW",
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"scope": "UNCHANGED",
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"userInteraction": "NONE",
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"vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
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"version": "3.1"
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}
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}
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],
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"references": [
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{
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"name": "https://github.com/libfuse/libfuse/security/advisories/GHSA-qxv7-xrc2-qmfx",
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"tags": [
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"x_refsource_CONFIRM"
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],
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"url": "https://github.com/libfuse/libfuse/security/advisories/GHSA-qxv7-xrc2-qmfx"
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},
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{
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"name": "https://github.com/libfuse/libfuse/commit/49fcd891a58f622c098e2ca67d66086f7b213836",
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"tags": [
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"x_refsource_MISC"
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],
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"url": "https://github.com/libfuse/libfuse/commit/49fcd891a58f622c098e2ca67d66086f7b213836"
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},
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{
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"name": "https://github.com/libfuse/libfuse/releases/tag/fuse-3.18.2",
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"tags": [
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"x_refsource_MISC"
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],
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"url": "https://github.com/libfuse/libfuse/releases/tag/fuse-3.18.2"
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}
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],
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"affected": [
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{
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"vendor": "libfuse",
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"product": "libfuse",
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"versions": [
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{
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"version": ">= 3.18.0, < 3.18.2",
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"status": "affected"
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}
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]
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}
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],
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"providerMetadata": {
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"orgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
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"shortName": "GitHub_M",
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"dateUpdated": "2026-03-20T20:20:29.963Z"
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},
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"descriptions": [
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{
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"lang": "en",
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"value": "libfuse is the reference implementation of the Linux FUSE. From version 3.18.0 to before version 3.18.2, a use-after-free vulnerability in the io_uring subsystem of libfuse allows a local attacker to crash FUSE filesystem processes and potentially execute arbitrary code. When io_uring thread creation fails due to resource exhaustion (e.g., cgroup pids.max), fuse_uring_start() frees the ring pool structure but stores the dangling pointer in the session state, leading to a use-after-free when the session shuts down. The trigger is reliable in containerized environments where cgroup pids.max limits naturally constrain thread creation. This issue has been patched in version 3.18.2."
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}
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],
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"source": {
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"advisory": "GHSA-qxv7-xrc2-qmfx",
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"discovery": "UNKNOWN"
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}
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},
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"adp": [
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{
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"metrics": [
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{
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"other": {
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"type": "ssvc",
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"content": {
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"timestamp": "2026-03-26T00:00:00+00:00",
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"options": [
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{
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"Exploitation": "none"
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},
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{
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"Automatable": "no"
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},
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{
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"Technical Impact": "total"
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}
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],
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"role": "CISA Coordinator",
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"version": "2.0.3",
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"id": "CVE-2026-33150"
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}
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}
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}
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],
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"title": "CISA ADP Vulnrichment",
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"providerMetadata": {
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"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
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"shortName": "CISA-ADP",
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"dateUpdated": "2026-03-27T03:55:40.426Z"
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}
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},
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{
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"affected": [
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{
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"collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
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"cpes": [
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"cpe:/o:redhat:enterprise_linux:7"
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],
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"defaultStatus": "unaffected",
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"packageName": "fuse",
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"product": "Red Hat Enterprise Linux 7",
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"vendor": "Red Hat"
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},
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{
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"collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
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"cpes": [
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"cpe:/o:redhat:enterprise_linux:8"
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],
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"defaultStatus": "affected",
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"packageName": "fuse-sshfs",
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"product": "Red Hat Enterprise Linux 8",
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"vendor": "Red Hat"
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}
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],
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"datePublic": "2026-03-20T20:20:29.963Z",
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"descriptions": [
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{
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"lang": "en",
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"value": "A flaw was found in libfuse. A use-after-free vulnerability in the io_uring subsystem allows a local attacker to potentially execute arbitrary code and crash FUSE (Filesystem in Userspace) filesystem processes. This occurs when io_uring thread creation fails due to resource exhaustion, such as limits imposed by cgroup pids.max, causing a dangling pointer to be stored and later used during session shutdown. This vulnerability is reliably triggered in containerized environments."
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}
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],
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"metrics": [
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{
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"other": {
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"content": {
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"namespace": "https://access.redhat.com/security/updates/classification/",
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"value": "Important"
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},
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"type": "Red Hat severity rating"
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}
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},
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{
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"cvssV3_1": {
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"attackComplexity": "LOW",
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"attackVector": "LOCAL",
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"availabilityImpact": "HIGH",
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"baseScore": 7.8,
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"baseSeverity": "HIGH",
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"confidentialityImpact": "HIGH",
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"integrityImpact": "HIGH",
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"privilegesRequired": "LOW",
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"scope": "UNCHANGED",
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"userInteraction": "NONE",
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"vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
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"version": "3.1"
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},
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"format": "CVSS"
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],
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"problemTypes": [
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{
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"descriptions": [
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{
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"cweId": "CWE-825",
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"description": "Expired Pointer Dereference",
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"lang": "en",
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"type": "CWE"
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}
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]
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}
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],
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"references": [
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{
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"tags": [
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"vdb-entry",
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"x_refsource_REDHAT"
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],
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"url": "https://access.redhat.com/security/cve/CVE-2026-33150"
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},
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{
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"name": "RHBZ#2449771",
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"tags": [
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"issue-tracking",
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"x_refsource_REDHAT"
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],
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"url": "https://bugzilla.redhat.com/show_bug.cgi?id=2449771"
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},
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{
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"tags": [
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"x_sadp-csaf-vex"
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],
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"url": "https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-33150.json"
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}
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],
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"timeline": [
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{
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"lang": "en",
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"time": "2026-03-20T21:01:20.625Z",
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"value": "Reported to Red Hat."
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},
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{
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"lang": "en",
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"time": "2026-03-20T20:20:29.963Z",
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"value": "Made public."
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}
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],
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"title": "libfuse: libfuse: Arbitrary code execution via use-after-free in io_uring subsystem",
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"x_adpType": "supplier",
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"x_generator": {
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} |