CVE•Published 2026-06-29•Modified 2026-07-02•1 article on news•6 live references•NVD data
CVE-2026-53434Apache · Tomcat
Vulnerability data via NVD (ingested)
CVSS v3.1
9.1
CRITICAL
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N
EPSS percentile
7
Exploit Prediction Scoring System · top 93% of all CVEs
Weaknesses (CWE)
Description
Detection of Error Condition Without Action vulnerability in Apache Tomcat when configuring CRLs for a FFM based connector. This issue affects Apache Tomcat: from 11.0.0-M1 through 11.0.22, from 10.1.0-M7 through 10.1.55, from 9.0.83 through 9.0.118. Users are recommended to upgrade to version 11.0.23, 10.1.56 or 9.0.119, which fixes the issue.
Timeline
Published 2026-06-29
Modified 2026-07-02
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-2026-53434Hosts Shodan has explicitly fingerprinted as vulnerable.
Shodan · product
product:"Apache Tomcat"All exposed Apache Tomcat instances — cross-reference with the CVE's affected-version range.
Shodan · banner/body mention
http.html:"Tomcat"HTTP body or banner mentions "Tomcat" — catches deploys Shodan didn't identify as a product.
More intel sources (5)
Shodan report
vuln:CVE-2026-53434Country / ASN / product breakdown for the vuln query.
Censys
vulnerabilities.cve_id: CVE-2026-53434Censys host search filtered to this CVE id.
grep.app
CVE-2026-53434Public source-code mentions — fast PoC discovery.
GitHub code
CVE-2026-53434GitHub code search for direct mentions.
Google dork
"CVE-2026-53434" exploit -site:nvd.nist.govWrite-ups and news, NVD excluded.
Known PoCs on GitHub
No public proof-of-concept repositories found for CVE-2026-53434 on GitHub.