CVE-2026-41284
📛 CVE Title
Apache Tomcat: Unbounded read in WebDAV LOCK and PROPFIND handling
Description
Allocation of Resources Without Limits or Throttling vulnerability in Apache Tomcat. This issue affects Apache Tomcat: from 11.0.0-M1 through 11.0.21, from 10.1.0-M1 through 10.1.54, from 9.0.0.M1 through 9.0.117. Older, unsupported versions may also be affected. Users are recommended to upgrade to version [FIXED_VERSION], which fixes the issue.
Overview
- State
- PUBLISHED
- Assigner (CNA)
- apache
- CVSS severity
- high
- CVSS score
- 7.5 / 10
- CVSS vector
AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H- Effective score
- 7.5 / 10 HIGH source: CNA overview
- CWE(s)
-
CWE-770 - Reserved
- 2026-04-20
- Published
- 2026-05-12 17:14 UTC
- Last updated
- 2026-05-13 17:57 UTC
- Source
- https://raw.githubusercontent.com/CVEProject/cvelistV5/main/cves/2026/41xxx/CVE-2026-41284.json
- Linked Threat
- CVE-2026-41284 — CVE-2026-41284
NVD triage scoring NVD CVE 2.0
Layer NVD adds on top of the CNA's CVE record — published / last-modified timestamps, exploitability / impact subscores, and the FIRST.org EPSS probability that this CVE will be exploited in the wild in the next 30 days.
- NVD published
- 2026-05-12 16:16:15 UTC
- NVD last modified
- 2026-05-14 18:59:48 UTC
- NVD CVSS v3.1
- 7.5 / 10 HIGH source: 134c704f-9b21-4f2e-91b3-4a467353bcc0
- NVD CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H- Exploitability subscore
- 3.9 / 10
- Impact subscore
- 3.6 / 10
- EPSS score
- 0.0005 (probability of exploitation in next 30 days)
- EPSS percentile
- 16.10% vs all CVEs — higher = more likely to be exploited, as of 2026-05-24
NVD / KEV / EPSS data refreshed 2026-05-25 10:03 UTC. Re-run the 🛰 Backfill from NVD button above to refresh.
European Union Vulnerability Database ENISA EUVD
ENISA's official EU repository for curated vulnerability intelligence. Carries a separate identifier (EUVD-YYYY-NNNN) and frequently exposes an earlier-published description + CVSS than NVD does.
- EUVD ID
-
EUVD-2026-29513 - Assigner
- apache
- Published
- May 12, 2026, 3:14:45 PM
- Updated
- May 13, 2026, 3:57:45 PM
- EUVD base score (CVSS 3.1)
-
7.5 / 10
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H - EUVD-reported EPSS
- 0.0500
- Vendors
- Apache Software Foundation
- Products
-
Apache Tomcat (10.0.0-M1 ≤10.0.27)Apache Tomcat (11.0.0-M1 ≤11.0.21)Apache Tomcat (10.1.0-M1 ≤10.1.54)Apache Tomcat (8.5.0 ≤8.5.100)Apache Tomcat (4.0 ≤7.0.109)Apache Tomcat (9.0.0.M1 ≤9.0.117)
ENISA description: Allocation of Resources Without Limits or Throttling vulnerability in Apache Tomcat. This issue affects Apache Tomcat: from 11.0.0-M1 through 11.0.21, from 10.1.0-M1 through 10.1.54, from 9.0.0.M1 through 9.0.117. Older, unsupported versions may also be affected. Users are recommended to upgrade to version [FIXED_VERSION], which fixes the issue.
EUVD references (1)
Affected products (1)
| Vendor | Product | Versions | Platforms |
|---|---|---|---|
| Apache Software Foundation | Apache Tomcat |
11.0.0-M1 (affected),
10.1.0-M1 (affected),
9.0.0.M1 (affected),
10.0.0-M1 (affected),
8.5.0 (affected),
4.0 (affected)
|
— |
Affected products — CPE 2.3 (1) NVD
NVD's normalized CPE 2.3 matchers, used by vendor tools (vulnerability scanners, asset managers) for automated detection. Compare with the CNA's free-text "Affected products" section above.
cpe:2.3:a:apache:tomcat:*:*:*:*:*:*:*:*
Vendor references (1)
References embedded in the original CVE record by the assigning CNA.
- https://lists.apache.org/thread/2nvqjr7ovjmvx2vbhb7s61ycd5msc8qc vendor-advisory
MITRE references (1) cveawg.mitre.org
Pulled from MITRE's CVE Services API by the 🛰 Backfill from MITRE button.
- https://lists.apache.org/thread/2nvqjr7ovjmvx2vbhb7s61ycd5msc8qc vendor-advisory
Web references (10)
DuckDuckGo results ranked by threat-intel / vendor advisory domains. Generated by the 🔎 Find references (web) button above — same flow as the Remediations search.
- http://cwe.mitre.org/data/definitions/770.html rapid7:cwe.mitre.org
- http://tomcat.apache.org/security-10.html rapid7:tomcat.apache.org
- http://tomcat.apache.org/security-11.html rapid7:tomcat.apache.org
- http://tomcat.apache.org/security-9.html rapid7:tomcat.apache.org
- https://attackerkb.com/topics/CVE-2026-41284 rapid7:attackerkb.com
- https://euvd.enisa.europa.eu/vulnerability/EUVD-2026-29513 rapid7:euvd.enisa.europa.eu
- http://www.openwall.com/lists/oss-security/2026/05/12/12 tenable:www.openwall.com
- https://nvd.nist.gov/vuln/detail/CVE-2026-41284 tenable:nvd.nist.gov
- https://www.cve.org/CVERecord?id=CVE-2026-41284 tenable:www.cve.org
- https://www.first.org/epss/ tenable:www.first.org
NVD-tagged references (2)
Reference list NVD curates from the CNA record, vendor advisories, and third-party reports. The tag chips below are NVD's analyst-assigned categories.
- http://www.openwall.com/lists/oss-security/2026/05/12/12 af854a3a-2127-422b-91ae-364da2661108 Mailing ListThird Party Advisory
- https://lists.apache.org/thread/2nvqjr7ovjmvx2vbhb7s61ycd5msc8qc security@apache.org Mailing ListVendor Advisory
Remediations (16)
Remediations are stored against the linked Threat row; the list below is deduplicated across both pages.
-
web:app.opencve.io
Remediation No vendor fix or workaround currently provided. OpenCVE Recommended Actions Upgrade Apache Tomcat to a release outside the affected ranges, such as 9.0.118, 10.1.55, or 11.0.22 and later.
2026-05-23 20:57 UTC -
web:builtin.com
Log4j Vulnerability Explained: What It Is and How to Fix It The Log4j vulnerability is a software vulnerability in Log4j — an open-source library commonly used in Java-based systems and applications. Here's how the vulnerability works, the response to and impact of the vulnerability and tips to mitigate it.
2026-05-23 20:57 UTC -
web:nvd.nist.gov
An official website of the United States government NVD MENU
2026-05-23 20:57 UTC -
web:portal.msrc.microsoft.com
The Security Update Guide provides information on the latest Microsoft security updates, helping users understand and address potential vulnerabilities effectively.
2026-05-23 20:57 UTC -
web:securityvulnerability.io
Learn about a resource management issue impacting Apache Tomcat, including affected versions and recommended fixes. CVE-2026-41284 .
2026-05-23 20:57 UTC -
web:www.crowdstrike.com
Microsoft's April 2026 Patch Tuesday addresses 164 CVEs , featuring 8 Critical vulnerabilities, one exploited zero-day, and one disclosed zero-day.
2026-05-23 20:57 UTC -
web:www.cve.org
At cve .org, we provide the authoritative reference method for publicly known information-security vulnerabilities and exposures
2026-05-23 20:57 UTC -
web:www.cybersecuritydive.com
The Cybersecurity and Infrastructure Security Agency added two major software flaws to its Known Exploited Vulnerabilities (KEV) catalog on Tuesday, acknowledging the evidence that hackers have been using the bugs in recent attacks. CISA added CVE -2024-1708, a high-severity flaw in ConnectWise's ScreenConnect remote-access tool, and CVE - 2026 -32202, a medium-severity flaw in the Windows Shell ...
2026-05-23 20:57 UTC -
web:www.oracle.com
This Critical Patch Update contains 481 new security patches across the product families listed below. Please note that an MOS note summarizing the content of this Critical Patch Update and other Oracle Software Security Assurance activities is located at April 2026 Critical Patch Update: Executive Summary and Analysis.
2026-05-23 20:57 UTC -
web:www.techrepublic.com
Microsoft's April 2026 Patch Tuesday fixes 165 vulnerabilities, including two zero-days, in one of the company's largest monthly security updates.
2026-05-23 20:57 UTC -
web:arstechnica.com
Google publishes exploit code threatening millions of Chromium users Google publishes exploit code before patch , reported 42 months earlier, is fixed.
2026-05-26 02:53 UTC -
web:community.ui.com
Published: May 21, 2026 Updated: May 22, 2026 Version: 1.1 Revision: 1.1 Summary 1 of 5 A malicious actor with access to the network and high privileges could exploit an Improper Input Validation vulnerability found in UniFi OS devices to execute a Command Injection. Affected Products: UniFi OS Server (Version 5.0.6 and earlier) Mitigation : Update your UniFi OS Server to Version 5.0.8 or later ...
2026-05-26 02:53 UTC -
web:cybersecuritynews.com
Google released a critical Chrome update fixing multiple high-risk vulnerabilities that could enable arbitrary code execution.
2026-05-26 02:53 UTC -
web:support.microsoft.com
This out-of-band Hotpatch update for Windows 11, version 25H2 and 24H2 (KB5078167), improves functionality, performance, and reliability. To learn more about differences between security updates, optional non-security preview updates, out-of-band (OOB) updates, and continuous innovation, see Windows monthly updates explained. For information on Windows update terminology, see the different ...
2026-05-26 02:53 UTC -
web:translate.google.com
Google's service, offered free of charge, instantly translates words, phrases, and web pages between English and over 100 other languages.
2026-05-26 02:53 UTC -
web:www.sentinelone.com
CVE-2026-41284 is a denial of service vulnerability in Apache Tomcat. Learn about its impact, affected versions, and mitigation methods.
2026-05-26 02:53 UTC
AI Forensic Analysis
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Raw JSON
The full cvelistV5 record. Download as CVE-2026-41284.json.
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