CVE•Published 2026-04-08•Modified 2026-07-01•1 article on news•7 live references•NVD data
CVE-2026-39892Cryptography.io · Cryptography
Vulnerability data via NVD (ingested)
CVSS v3.1
9.8
CRITICAL
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
EPSS percentile
47
Exploit Prediction Scoring System · top 53% of all CVEs
Weaknesses (CWE)
Description
cryptography is a package designed to expose cryptographic primitives and recipes to Python developers. From 45.0.0 to before 46.0.7, if a non-contiguous buffer was passed to APIs which accepted Python buffers (e.g. Hash.update()), this could lead to buffer overflows. This vulnerability is fixed in 46.0.7.
Timeline
Published 2026-04-08
Modified 2026-07-01
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-2026-39892Hosts Shodan has explicitly fingerprinted as vulnerable.
Shodan · product
product:"Cryptography.io Cryptography"All exposed Cryptography.io Cryptography instances — cross-reference with the CVE's affected-version range.
Shodan · banner/body mention
http.html:"Cryptography"HTTP body or banner mentions "Cryptography" — catches deploys Shodan didn't identify as a product.
More intel sources (5)
Shodan report
vuln:CVE-2026-39892Country / ASN / product breakdown for the vuln query.
Censys
vulnerabilities.cve_id: CVE-2026-39892Censys host search filtered to this CVE id.
grep.app
CVE-2026-39892Public source-code mentions — fast PoC discovery.
GitHub code
CVE-2026-39892GitHub code search for direct mentions.
Google dork
"CVE-2026-39892" exploit -site:nvd.nist.govWrite-ups and news, NVD excluded.
Known PoCs on GitHub (2)
CVE-2026-398922 repos