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High 7.5Published Jun 8, 2026
CVE-2026-49975Memory Allocation with Excessive Size Value vulnerability in Apache HTTP Server's mod_http leads to denial of service via malicious HTTP requests.
Updated under an hour ago ()
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Memory Allocation with Excessive Size Value vulnerability in Apache HTTP Server's mod_http leads to denial of service via malicious HTTP requests. This issue affects Apache HTTP Server: from 2.4.17 through 2.4.67.
- CVSS
- 7.5 HIGH (v3.1, NVD)CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
- Weakness (CWE)
- CWE-789, CWE-409
- Known exploited
- Not in CISA's KEV catalog
- EPSS (exploitation in the next 30 days)
- Not loaded for this CVE
- Assigned by
- Not given
- NVD analysis
- Modified
- Record last updated
- Aug 19, 2026
- First seen by InfoSec Signals
- Oct 9, 2026
Affected products
apache http_server apache:http_server | from 2.4.17 before 2.4.68 | NVD |
debian debian_linux debian:debian_linux | 11.0 | NVD |
References
- https://httpd.apache.org/security/vulnerabilities_24.htmlvendor-advisory
- http://www.openwall.com/lists/oss-security/2026/06/03/3mailing-list, third-party-advisory
- http://www.openwall.com/lists/oss-security/2026/06/08/16mailing-list, third-party-advisory
- https://lists.debian.org/debian-lts-announce/2026/06/msg00009.htmlmailing-list, third-party-advisory
- https://access.redhat.com/errata/RHSA-2026:25042
- https://access.redhat.com/errata/RHSA-2026:25057
- https://access.redhat.com/errata/RHSA-2026:25090
- https://access.redhat.com/errata/RHSA-2026:25225
- https://access.redhat.com/errata/RHSA-2026:27114
- https://access.redhat.com/errata/RHSA-2026:27200
- https://access.redhat.com/errata/RHSA-2026:27201
- https://access.redhat.com/errata/RHSA-2026:36373
- https://access.redhat.com/errata/RHSA-2026:36831
- https://access.redhat.com/errata/RHSA-2026:36846
- https://access.redhat.com/errata/RHSA-2026:50538
- https://access.redhat.com/errata/RHSA-2026:50572
- https://access.redhat.com/errata/RHSA-2026:55930
- https://access.redhat.com/errata/RHSA-2026:55992
- https://access.redhat.com/security/cve/CVE-2026-49975
- https://bugzilla.redhat.com/show_bug.cgi?id=2485371
- https://github.com/EQSTLab/CVE-2026-49975exploit, third-party-advisory
- https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-49975.json
The CVE record on cve.org NVD's entry
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