CVE-2026-44378
published 2026-05-27CVE-2026-44378: 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…
PriorityP340high7.5CVSS 3.1
AVNACLPRNUINSUCNINAH
EPSS
0.32%
24.6th percentile
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.
Affected
2 ranges
| Vendor | Product | Version range | Fixed in |
|---|---|---|---|
| botan_project | botan | < 3.12.0 | 3.12.0 |
| randombit | botan | < 3.12.0 | 3.12.0 |
CVSS provenance
nvdv3.17.5HIGHCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
nvdv4.06.9MEDIUMCVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
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Bugzilla
CVE-2026-44378 botan2: Botan: Denial of Service via malformed BER data parsing [epel-all]
bugzilla·2026-05-29·CVSS 6.9
CVE-2026-44378 [MEDIUM] CVE-2026-44378 botan2: Botan: Denial of Service via malformed BER data parsing [epel-all]
CVE-2026-44378 botan2: Botan: Denial of Service via malformed BER data parsing [epel-all]
Disclaimer: Community trackers are created by Red Hat Product Security team on a best effort basis. Package maintainers are required to ascertain if the flaw indeed affects their package, before starting the update process.
Bugzilla
CVE-2026-44378 botan: Botan: Denial of Service via malformed BER data parsing [fedora-all]
bugzilla·2026-05-29·CVSS 6.9
CVE-2026-44378 [MEDIUM] CVE-2026-44378 botan: Botan: Denial of Service via malformed BER data parsing [fedora-all]
CVE-2026-44378 botan: Botan: Denial of Service via malformed BER data parsing [fedora-all]
Disclaimer: Community trackers are created by Red Hat Product Security team on a best effort basis. Package maintainers are required to ascertain if the flaw indeed affects their package, before starting the update process.
Bugzilla
CVE-2026-44378 botan3: Botan: Denial of Service via malformed BER data parsing [fedora-all]
bugzilla·2026-05-29·CVSS 6.9
CVE-2026-44378 [MEDIUM] CVE-2026-44378 botan3: Botan: Denial of Service via malformed BER data parsing [fedora-all]
CVE-2026-44378 botan3: Botan: Denial of Service via malformed BER data parsing [fedora-all]
Disclaimer: Community trackers are created by Red Hat Product Security team on a best effort basis. Package maintainers are required to ascertain if the flaw indeed affects their package, before starting the update process.
Bugzilla
CVE-2026-44378 botan3: Botan: Denial of Service via malformed BER data parsing [epel-all]
bugzilla·2026-05-29·CVSS 6.9
CVE-2026-44378 [MEDIUM] CVE-2026-44378 botan3: Botan: Denial of Service via malformed BER data parsing [epel-all]
CVE-2026-44378 botan3: Botan: Denial of Service via malformed BER data parsing [epel-all]
Disclaimer: Community trackers are created by Red Hat Product Security team on a best effort basis. Package maintainers are required to ascertain if the flaw indeed affects their package, before starting the update process.
Bugzilla
CVE-2026-44378 botan2: Botan: Denial of Service via malformed BER data parsing [fedora-all]
bugzilla·2026-05-29·CVSS 6.9
CVE-2026-44378 [MEDIUM] CVE-2026-44378 botan2: Botan: Denial of Service via malformed BER data parsing [fedora-all]
CVE-2026-44378 botan2: Botan: Denial of Service via malformed BER data parsing [fedora-all]
Disclaimer: Community trackers are created by Red Hat Product Security team on a best effort basis. Package maintainers are required to ascertain if the flaw indeed affects their package, before starting the update process.
Bugzilla
CVE-2026-44378 botan: Botan: Denial of Service via malformed BER data parsing
bugzilla·2026-05-27·CVSS 6.9
CVE-2026-44378 [MEDIUM] CVE-2026-44378 botan: Botan: Denial of Service via malformed BER data parsing
CVE-2026-44378 botan: Botan: Denial of Service via malformed BER data parsing
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.
2026-05-27
Published