CVE detail
CVE-2026-33150
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.
Buzz score
Why this CVE is surfacing
This all-time snapshot uses the same composite formula as Trending across a 30-year evidence window, rather than a current rolling window.
Buzz score components · mention 20.8 · diversity 18.0 · KEV 0.0 · OTX 0.0 · PoC 0.0
Why it matters now
Mention timeline
- Total mentions
- 0
- within the 30d window
- Peak daily
- 0
- highest bucket
Evidence
Source links by recency
7 source links · newest first
Linked URL: https://github.com/libfuse/libfuse/security/advisories/GHSA-qxv7-xrc2-qmfx | Posted by agarwal72 | 5 points | 2 comments
communitynews.ycombinator.comMar 21, 2026, 1:44 AM- https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-33150.jsonsecurity.access.redhat.com
No excerpt available.
Vendor Advisorysecurity.access.redhat.comMar 20, 2026, 9:17 PM - https://bugzilla.redhat.com/show_bug.cgi?id=2449771bugzilla.redhat.com
No excerpt available.
Exploitbugzilla.redhat.comMar 20, 2026, 9:17 PM - https://access.redhat.com/security/cve/CVE-2026-33150access.redhat.com
No excerpt available.
Vendor Advisoryaccess.redhat.comMar 20, 2026, 9:17 PM No excerpt available.
Exploitgithub.comMar 20, 2026, 9:17 PMNo excerpt available.
Exploitgithub.comMar 20, 2026, 9:17 PMNo excerpt available.
Exploitgithub.comMar 20, 2026, 9:17 PM
Exploit code
Public exploit repository references
Public PoC repositories are third-party, potentially unsafe artifacts. Treat their code as untrusted and use it only on authorized systems in an isolated, least-privilege environment. cvebuzz does not execute the code or verify that an exploit works.
0 repository references · best confidence N/A · max 0 stars
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