CVE-2026-56153 Apache HTTP Server - Out of Bounds Write

Apache HTTP Server 2.4.0 through 2.4.68 contains an out-of-bounds write caused by improper memory handling in mod_charset_lite, letting attackers potentially corrupt memory, exploit requires crafted requests.

CVSS base score 7.5 /10
High
CISA KEV
Not listed
Public exploit
None known
Authentication
Not required
EPSS
0.50% chance of exploitation in 30 days
View the NVD record ↗

Details

Type
Out of Bounds Write
Impact
Denial Of Service, Remote Code Execution
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
Published
1 October 2026
Updated
15 October 2026
Weakness
CWE-787

Vendor fix

Update to a version later than 2.4.68 or the latest available version.

Patching closes this CVE. It does not tell you which of your systems run the affected version, or what else is exposed alongside them.

References

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