NULL Pointer Dereference Affecting fuse-devel package, versions *


Severity

Recommended
0.0
medium
0
10

Based on CentOS security rating.

Threat Intelligence

EPSS
0.17% (7th percentile)

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  • Snyk IDSNYK-CENTOS7-FUSEDEVEL-15839894
  • published30 Mar 2026
  • disclosed20 Mar 2026

Introduced: 20 Mar 2026

CVE-2026-33179  (opens in a new tab)
CWE-476  (opens in a new tab)

How to fix?

There is no fixed version for Centos:7 fuse-devel.

NVD Description

Note: Versions mentioned in the description apply only to the upstream fuse-devel package and not the fuse-devel package as distributed by Centos. See How to fix? for Centos:7 relevant fixed versions and status.

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.

CVSS Base Scores

version 3.1