CVE-2026-44378: medium-severity vulnerability in randombit botan
Botan: Quadratic complexity decoding BER indefinite length encodings
Published
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13Vexday Risk Score
No sign of exploitation. No public exploitation artifact known so far.
ssvc Trackcvss 6.9epss 0.3%
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.
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N
Affected products
randombit · botanRelated CVEs — randombit botan
In the same product, most dangerous first.
CVE-2024-34702MEDIUMBotan has a Denial of Service Due to Excessive Name ConstraintsEPSS 0.8%CVE-2024-34703HIGHBotan Vulnerable to Denial of Service Due to Overly Large Elliptic Curve ParametersEPSS 0.5%CVE-2026-34580CRITICALBotan has a certificate authentication bypass due to trust anchor confusionEPSS 0.5%CVE-2026-118769CRITICALBotan: Integer overflow when reporting block size in FFI can cause memory corruptionEPSS 0.4%CVE-2026-32877HIGHBotan: Heap Buffer Over-read in SM2 Decryption via Undersized C3 Hash FieldEPSS 0.3%CVE-2024-39312MEDIUMBotan has an Authorization Error due to Name Constraint Decoding BugEPSS 0.3%