CVE•Published 2026-05-27•Modified 2026-06-02•0 articles on news•6 live references•NVD data
CVE-2026-44378Botan_project · Botan
Vulnerability data via NVD (ingested)
CVSS v3.1
7.5
HIGH
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
EPSS percentile
—
Weaknesses (CWE)
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.
Timeline
Published 2026-05-27
Modified 2026-06-02
External references
Search for exposed instances
Shodan + Censys queries derived from NVD's CPE data. The vuln tag catches assets Shodan has explicitly linked to this CVE; the product / banner fingerprints find exposed instances even when the vuln tag was never applied (which is common).
Shodan · vuln tag0 hosts
vuln:CVE-2026-44378Hosts Shodan has explicitly fingerprinted as vulnerable.
Shodan · product
product:"Botan Project Botan"All exposed Botan Project Botan instances — cross-reference with the CVE's affected-version range.
Shodan · banner/body mention
http.html:"Botan"HTTP body or banner mentions "Botan" — catches deploys Shodan didn't identify as a product.
More intel sources (5)
Shodan report
vuln:CVE-2026-44378Country / ASN / product breakdown for the vuln query.
Censys
vulnerabilities.cve_id: CVE-2026-44378Censys host search filtered to this CVE id.
grep.app
CVE-2026-44378Public source-code mentions — fast PoC discovery.
GitHub code
CVE-2026-44378GitHub code search for direct mentions.
Google dork
"CVE-2026-44378" exploit -site:nvd.nist.govWrite-ups and news, NVD excluded.
Known PoCs on GitHub
No public proof-of-concept repositories found for CVE-2026-44378 on GitHub.
We haven't classified any articles referencing CVE-2026-44378 yet. The external references above still apply.