High severity · published Jun 8, 2026
CVE-2026-48913
Apache HTTP Server: mod_http2 memory corruption when file handles exhausted
7.3
CVSS
0.5%
EPSS
No
On KEV
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.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L
Attack vector
Network
Complexity
Low
Privileges
None
User interaction
None
Confidentiality
Low
Integrity
Low
Availability
Low
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.5% · higher than 41% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
HS
HTTP Server · Apache
2.4.55 through 2.4.67 · source: vendor, NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-48913
CVE.org
https://www.cve.org/CVERecord?id=CVE-2026-48913
Vendor Advisory
https://httpd.apache.org/security/vulnerabilities_24.html
Mailing List
http://www.openwall.com/lists/oss-security/2026/06/08/15
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