CVE-2026-48913

Description

Use After Free vulnerability in Apache HTTP Server module mod_http2 when file handles are already exhausted. This issue affects Apache HTTP Server: from 2.4.55 through 2.4.67.

Description (MITRE) cveawg.mitre.org

Pulled from cveawg.mitre.org/api/cve/CVE-2026-48913 on 2026-10-29. Shown when MITRE's text differs from the cvelistV5 mirror.

Use After Free vulnerability in Apache HTTP Server module mod_http2 when file handles are already exhausted. This issue affects Apache HTTP Server: from 2.4.55 through 2.4.67.

Overview

State

—

Assigner (CNA)

—

CVSS severity

high

CVSS score

7.3 / 10

CVSS vector

AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L

Effective score

7.3 / 10 HIGH source: CNA overview

MSRC score

7.3 / 10 HIGH MS rating: Moderate

CWE(s)

CWE-416

Reserved

—

Published

2026-06-09 07:00 UTC

Last updated

2026-06-20 01:43 UTC

Source

https://www.tenable.com/cve/CVE-2026-48913

Linked Threat

CVE-2026-48913 — CVE-2026-48913

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

2026-06-08 16:16:43 UTC

NVD last modified

2026-07-23 07:10:00 UTC

NVD CVSS v3.1

7.3 / 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:L/I:L/A:L

Exploitability subscore

3.9 / 10

Impact subscore

3.4 / 10

EPSS score

0.0048 (probability of exploitation in next 30 days)

EPSS percentile

38.82% vs all CVEs — higher = more likely to be exploited, as of 2026-08-01

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-2026-35101

Assigner

apache

Published

Jun 8, 2026, 3:24:52 PM

Updated

Jun 8, 2026, 10:32:34 PM

EUVD base score (CVSS 3.1)

7.3 / 10
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L

EUVD-reported EPSS

0.4800

Vendors

Apache Software Foundation

Products

Apache HTTP Server (2.4.55 ≤2.4.67)

Aliases

GHSA-fjj2-vrp3-84fv

ENISA description: Use After Free vulnerability in Apache HTTP Server module mod_http2 when file handles are already exhausted. This issue affects Apache HTTP Server: from 2.4.55 through 2.4.67.

Microsoft Security Response Center MSRC

Microsoft's vendor-authoritative record from the Security Update Guide — its own CVSS score, impact, severity rating, exploit assessment, and KB-article fixes. Refreshed 2026-11-03 04:06 UTC (source: CVRF).

MS severity

Moderate

MS CVSS base score

7.3 / 10 (temporal 6.7)
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L/E:U

Release

2026-Jun

Vendor references (0)

References embedded in the original CVE record by the assigning CNA.

None in the CVE record.

Web references (5)

DuckDuckGo results ranked by threat-intel / vendor advisory domains. Generated by the 🔎 Find references (web) button above — same flow as the Remediations search.

• MSRC update guide: CVE-2026-48913 msrc
• http://www.openwall.com/lists/oss-security/2026/06/08/15 tenable:www.openwall.com
• https://httpd.apache.org/security/vulnerabilities_24.html tenable:httpd.apache.org
• https://nvd.nist.gov/vuln/detail/CVE-2026-48913 tenable:nvd.nist.gov
• https://www.cve.org/CVERecord?id=CVE-2026-48913 tenable:www.cve.org

Remediations are stored against the linked Threat row; the list below is deduplicated across both pages.

• Category: Patch Tuesday | Qualys
  web:blog.qualys.com

  Microsoft and Adobe Patch Tuesday, April 2026 Security Update Review Posted in Patch Tuesday, Vulnerabilities and Threat Research 7 Diksha Ojha March 11, 2026 - 8 min read

  2026-06-19 02:37 UTC
• April 2026 Critical Patch Update Released | security - Oracle Blogs
  web:blogs.oracle.com

  For more information about the Critical Patch Update program, see the security vulnerability remediation practices page located on the Oracle Trust Center.

  2026-06-19 02:37 UTC
• Oracle Critical Security Patch - 337 Vulnerabilities Patched Across ...
  web:cybersecuritynews.com

  Oracle January 2026 Critical Patch Update addresses 337 new security vulnerabilities spanning multiple product families, marking a comprehensive security initiative to mitigate widespread risk across enterprise systems. The patch encompasses critical fixes for Oracle's extensive product ecosystem, including database systems, middleware, communications platforms, and financial applications ...

  2026-06-19 02:37 UTC
• Critical Security Vulnerabilities Alert: Latest CVE Updates and Patch ...
  web:hackerdesk.com

  This report details critical security vulnerabilities disclosed in April 2026 , including severe flaws in Fortinet, FileZen, and Microsoft products. Organizations are urged to prioritize patching based on risk assessment and leverage compensating controls to mitigate immediate threats while implementing long-term patch management strategies.

  2026-06-19 02:37 UTC
• Nvd - Cve-2026-48913
  web:nvd.nist.gov

  Quick Info CVE Dictionary Entry: CVE-2026-48913 NVD Published Date: 06/08/ 2026 NVD Last Modified: 06/08/ 2026 Source: Apache Software Foundation

  2026-06-19 02:37 UTC
• Oracle CPU April 2026: Delayed RUs & First Analysis ¶
  web:oradba.ch

  On April 21, 2026 , Oracle released the Critical Patch Update (CPU) for April 2026 — 481 new security fixes across the entire Oracle product stack. For Oracle Database, this means another round of mandatory patching. What makes this quarter unusual: several key Release Updates, including 19.31 and 23.26.2, were not available on release day and are delayed by up to a week or more.

  2026-06-19 02:37 UTC
• Security Update Guide - Loading - Microsoft
  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.

  2026-06-19 02:37 UTC
• Microsoft Technical Security Notifications
  web:www.microsoft.com

  Security Update Guide Notifications Microsoft's free Security Update Guide Notifications provide links to security-related software updates and notification of re-released security updates. These notifications are sent via email throughout the month as needed.

  2026-06-19 02:37 UTC
• Oracle Critical Patch Update Advisory - April 2026
  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.

  2026-06-19 02:37 UTC
• Oracle April 2026 Critical Patch Update 241 CVEs | Tenable®
  web:www.tenable.com

  Oracle addresses 241 CVEs in its April Critical Patch Update, the second quarterly update of 2026 with 481 patches, including 34 critical updates.

  2026-06-19 02:37 UTC

Only Available for Registered Users. Sign in to view.