Vulnerability Description
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 Score
HIGH
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Apache | Http Server | >= 2.4.17, < 2.4.68 |
| Debian | Debian Linux | 11.0 |
Related Weaknesses (CWE)
References
- https://httpd.apache.org/security/vulnerabilities_24.htmlVendor Advisory
- http://www.openwall.com/lists/oss-security/2026/06/03/3Mailing ListThird Party Advisory
- http://www.openwall.com/lists/oss-security/2026/06/08/16Mailing ListThird Party Advisory
- https://lists.debian.org/debian-lts-announce/2026/06/msg00009.htmlMailing ListThird 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
FAQ
What is CVE-2026-49975?
CVE-2026-49975 is a vulnerability with a CVSS score of 7.5 (HIGH). 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 t...
How severe is CVE-2026-49975?
CVE-2026-49975 has been rated HIGH with a CVSS base score of 7.5/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2026-49975?
Check the references section above for vendor advisories and patch information. Affected products include: Apache Http Server, Debian Debian Linux.