DEBIAN-CVE-2026-33179
- Source
- https://security-tracker.debian.org/tracker/CVE-2026-33179
- Import Source
- https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-33179.json
- JSON Data
- https://api.osv.dev/v1/vulns/DEBIAN-CVE-2026-33179
- Upstream
- Published
- 2026-03-20T21:17:16Z
- Modified
- 2026-09-14T17:03:07Z
- Severity
-
- 5.5 (Medium) CVSS_V3 - CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H CVSS Calculator
- Summary
- [none]
- Details
-
libfuse is the reference implementation of the Linux FUSE. From version 3.18.0 to before version 3.18.2, a NULL pointer dereference and memory leak in fuse_uring_init_queue allows a local user to crash the FUSE daemon or cause resource exhaustion. When numa_alloc_local fails during io_uring queue entry setup, the code proceeds with NULL pointers. When fuse_uring_register_queue fails, NUMA allocations are leaked and the function incorrectly returns success. Only the io_uring transport is affected; the traditional /dev/fuse path is not affected. PoC confirmed with AddressSanitizer/LeakSanitizer. This issue has been patched in version 3.18.2.
- References
Affected packages
Debian:14 / fuse3
Package
- Name
- fuse3
- Purl
- pkg:deb/debian/fuse3?arch=source&distro=forky