CVE-2025-55159
Medium
Description
slab is a pre-allocated storage for a uniform data type. In version 0.4.10, the get_disjoint_mut method incorrectly checked if indices were within the slab's capacity instead of its length, allowing access to uninitialized memory. This could lead to undefined behavior or potential crashes. This has been fixed in slab 0.4.11. A workaround for this issue involves to avoid using get_disjoint_mut with indices that might be beyond the slab's actual length.
SeverityMedium
CVSS5.1
Exploit probability—
ProductTokio-rs Slab
PublishedAug 11, 2025
First seenAug 11, 2025
Weakness typeCWE-119Memory buffer bounds error
How to fix
Sources list no fixed version or patch link for this vulnerability.
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| tokio-rs slab | >= 0.4.10, < 0.4.11 | — |
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