CVE-2026-44378
High
Description
Botan is a C++ cryptography library. Prior to 3.12.0, certain patterns of indefinite length encodings in BER data could cause quadratic behavior in the parser, resulting in a denial of service. Such BER encodings were accepted even in structures which are required to be encoded as DER, which prohibits indefinite length encodings. This vulnerability is fixed in 3.12.0.
SeverityHigh
CVSS7.5
Exploit probability—
ProductBotan
PublishedMay 27, 2026
First seenMay 27, 2026
Weakness typeCWE-407CWE-407
How to fix
Update
- botan_project botan3.12.0 or later
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| botan_project botan | v < 3.12.0 | 3.12.0 |
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