CVSS 3.1
Вероятност да бъде експлоатирана в следващите 30 дни (EPSS)
Атакува се
Време до експлоатация
Атакува се локално, без особени условия, с обикновен потребителски вход и без действие от потребителя.
- Експлоатация: няма данни за експлоатация
- Атаката не може да се автоматизира
Описание
Оригинално описание
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.
Засегнати продукти
- libfuse libfuse: >= 3.18.0, < 3.18.2
Вид слабост
История
- 20 март 2026 Публикувано
Други уязвимости в libfuse libfuse
Първоизточници
- https://www.cve.org/CVERecord?id=CVE-2026-33179
- https://nvd.nist.gov/vuln/detail/CVE-2026-33179
- https://github.com/libfuse/libfuse/security/advisories/GHSA-x669-v3mq-r358
- https://github.com/libfuse/libfuse/commit/7beb86c09b6ec5aab14dc25256ed8a5ad18554d7
- https://github.com/libfuse/libfuse/releases/tag/fuse-3.18.2