Vulnerability record · CVE-2022-26635 · published 5 April 2022

CVE-2022-26635: Php memcached vulnerability

Php · Memcached

PHP-Memcached v2.2.0 and below contains an improper NULL termination which allows attackers to execute CLRF injection. Note: Third parties have disputed this as not affecting PHP-Memcached directly.

9.8 CVSS 3.1 Critical EPSS 21% · top 2.5%

9.8CVSS 3.1 base score, v2 7.5

21%EPSS exploitation probability, 30 days

NoNot in CISA KEV

1Affected product versions listed by NVD

4References, 2 tagged exploit

17 Jun 2026Last modified by NVD

Description

PHP-Memcached v2.2.0 and below contains an improper NULL termination which allows attackers to execute CLRF injection. Note: Third parties have disputed this as not affecting PHP-Memcached directly.

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Affected products

1 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

Memcached Php

References

Link	Tags
https://github.com/php-memcached-dev/php-memcached/issues/519
https://xhzeem.me/posts/Php5-memcached-Injection-Bypass/read/	ExploitThird Party Advisory
https://github.com/php-memcached-dev/php-memcached/issues/519
https://xhzeem.me/posts/Php5-memcached-Injection-Bypass/read/	ExploitThird Party Advisory

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Source: NIST National Vulnerability Database (record CVE-2022-26635), CISA KEV, FIRST EPSS (scores of 2026-09-26). This page is refreshed as NVD updates the record.