Vulnerability · CVE-2026-49975
HTTP/2 Bomb CVE-2026-49975
Published Aug 12, 2026 · Apache
Check if you run it
No confirmed exploitation is on record for CVE-2026-49975. EPSS is 4.17%. Act only if a listed version of Apache is installed.
Gaps on this record
- No version range is stored. A customer cannot check an installed version against this record.
- No vendor fix or required action is stored. Compare the linked advisory before you change production.
- Severity
- Unknown—
- Known exploitation
- Not in CISA/VulnCheck KEV
- EPSS
- 4.17%
- Remediation
- Not established
- Affected products
- Apache
CVSSv3 Score: 5.8 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. This issue affects Apache HTTP Server: from 2.4.17 through 2.4.67. Revised on 2026-08-19 00:00:00
No affected version ranges are stored yet. Use the vendor advisory before you decide this record does not apply.
How to fix CVE-2026-49975
Recommended remediation
No required-action text, fix commit, or clear fixed-version range is stored yet.
Official advisories
What to do
Three questions, each answered from this record only. Confirm the vendor advisory before you patch.
Should you patch?
No confirmed exploitation is on record for CVE-2026-49975. EPSS is 4.17%. Act only if a listed version of Apache is installed.
Which versions are affected?
Affected version ranges are not on this record. Compare the installed version with the linked vendor advisory before you change production.
What should an analyst verify?
No weakness class is stored. EPSS 4.17%. There is no CISA KEV listing. No Exploit-DB or Metasploit reference is linked. Use the source links for the original advisory.
Technology hubs
Code
The project this record applies to. Exploit listings stay in References.
No public source repository is identified for this product.
Timeline
Detection, updates, and resolution for this record.
Aug 12, 2026 · Fortinet PSIRT
Detected
CVSSv3 Score: 5.8 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. This issue affects Apache HTTP Server: from 2.4.17 through 2.4.67. Revised on 2026-08-19 00:00:00
Sources
- Apache Software FoundationVendor advisoryCVE-2026-49975
CVE-2026-49975 is named on the public Apache Software Foundation page.
httpd.apache.org - CVE.orgVulnerability recordCVE-2026-49975
Official CVE identifier
cve.org - FIRST EPSSExploitation probabilityCVE-2026-49975
30-day exploitation probability 4.2%
first.org - Fortinet PSIRTVendor advisoryCVE-2026-49975
CVE-2026-49975 is named in a Fortinet PSIRT advisory.
filestore.fortinet.com
Freshness
Last verified in this catalog Oct 18, 2026. Significant claims (KEV, EPSS, CVSS, affected ranges) come from the source rows above — open the original publisher for the authoritative advisory.