CVE-2021-26690

—

CVSS 3.1

7.5 high

EPSS

65%p99

Published

Jun 10, 2021 (Jun 10, 2021)

Modified

Jun 17, 2026

Description

Apache HTTP Server versions 2.4.0 to 2.4.46 A specially crafted Cookie header handled by mod_session can cause a NULL pointer dereference and crash, leading to a possible Denial Of Service

Vendors: apache debian fedoraproject oracle
Products: http server, debian linux, fedora, enterprise manager ops center, instantis enterprisetrack, zfs storage appliance kit
Weakness: CWE-476
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

NVD CVE.org GitHub PoCs EPSS (65.3%)

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