CVE•Published 2026-05-10•Modified 2026-05-14•0 articles on news•5 live references•NVD data
CVE-2026-45186Libexpat_project · Libexpat
Vulnerability data via NVD (ingested)
CVSS v3.1
2.9
LOW
CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:L
EPSS percentile
—
Weaknesses (CWE)
Description
In libexpat before 2.8.1, the computational complexity of attribute name collision checks allows a denial of service via moderately sized crafted XML input.
Timeline
Published 2026-05-10
Modified 2026-05-14
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-2026-45186Hosts Shodan has explicitly fingerprinted as vulnerable.
Shodan · product
product:"Libexpat Project Libexpat"All exposed Libexpat Project Libexpat instances — cross-reference with the CVE's affected-version range.
Shodan · banner/body mention
http.html:"Libexpat"HTTP body or banner mentions "Libexpat" — catches deploys Shodan didn't identify as a product.
More intel sources (5)
Shodan report
vuln:CVE-2026-45186Country / ASN / product breakdown for the vuln query.
Censys
vulnerabilities.cve_id: CVE-2026-45186Censys host search filtered to this CVE id.
grep.app
CVE-2026-45186Public source-code mentions — fast PoC discovery.
GitHub code
CVE-2026-45186GitHub code search for direct mentions.
Google dork
"CVE-2026-45186" exploit -site:nvd.nist.govWrite-ups and news, NVD excluded.
Known PoCs on GitHub
No public proof-of-concept repositories found for CVE-2026-45186 on GitHub.
We haven't classified any articles referencing CVE-2026-45186 yet. The external references above still apply.