CVE•Published 2026-04-16•Modified 2026-04-27•0 articles on news•6 live references•NVD data

CVE-2026-41080Libexpat_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

Exploit Prediction Scoring System · top 91% of all CVEs

Weaknesses (CWE)

CWE-331Insufficient Entropy

Description

libexpat before 2.8.0 uses insufficient entropy, and thus hash flooding can occur via a crafted XML document.

Timeline

Published 2026-04-16

Modified 2026-04-27

External references

NVD MITRE Exploit-DB GitHub PoC Sploitus VulnCheck

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-2026-41080

Hosts 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-2026-41080

Country / ASN / product breakdown for the vuln query.

Censys

vulnerabilities.cve_id: CVE-2026-41080

Censys host search filtered to this CVE id.

grep.app

CVE-2026-41080

Public source-code mentions — fast PoC discovery.

GitHub code

CVE-2026-41080

GitHub code search for direct mentions.

Google dork

"CVE-2026-41080" exploit -site:nvd.nist.gov

Write-ups and news, NVD excluded.

Known PoCs on GitHub (4)

CVE-2026-410804 repos

Ostorlab/KEVunknown

Ostorlab KEV: One-command to detect most remotely known exploitable vulnerabilities. Sourced from CISA KEV, Google's Tsunami, Ostorlab's Asteroid and Bug Bounty programs.

★ 612·updated 2mo ago

Threekiii/CVEunknown

一个 CVE 漏洞预警知识库，无 exp/poc，部分包含修复方案。A knowledge base of CVE security vulnerability, no PoCs/exploits.

★ 167·updated today

rxerium/CISA-KEVPython

An automated repo to track Nuclei template scanning capabilities against the CISA KEV.

★ 3·updated today

Vulnetix/breach-notesGo

Breach intelligence notes: structured YAML records of breach reports, advisories, and cyber incidents

★ 1·updated 1w ago

We haven't classified any articles referencing CVE-2026-41080 yet. The external references above still apply.