CVE-2026-106972
High
Description
Uncontrolled recursion in MessagePack\BufferUnpacker::unpack() in rybakit/msgpack versions prior to 0.11.0 allows attackers to cause a denial of service through memory exhaustion when an application decodes deeply nested, attacker-controlled MessagePack input.
SeverityHigh
CVSS7.5
Exploit probability—
ProductRybakit Msgpack
PublishedOct 28, 2026
First seenNov 4, 2026
Weakness typeCWE-674CWE-674
How to fix
Update
- rybakit msgpack0.11.0 or later
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| rybakit msgpack | No range specified | 0.11.0 |
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