High severity8.1NVD Advisory· Published May 20, 2026· Updated May 21, 2026

CVE-2026-47783

Description

In memcached before 1.6.42, username data for SASL password database authentication has a timing side channel because a loop exits as soon as a valid username is found by sasl_server_userdb_checkpass.

AI Insight

LLM-synthesized narrative grounded in this CVE's description and references.

Affected products

Memcached/Memcachedreferences3 versions
(expand)+ 2 more
- (no CPE)
- cpe:2.3:a:memcached:memcached:*:*:*:*:*:*:*:*range: <1.6.42
- (no CPE)range: <1.6.42
osv-coords6 versions
pkg:bitnami/memcached pkg:rpm/almalinux/memcached pkg:rpm/almalinux/memcached-selinux pkg:rpm/opensuse/memcached&distro=openSUSE%20Tumbleweed pkg:rpm/suse/memcached&distro=SUSE%20Linux%20Enterprise%20Server%2016.0 pkg:rpm/suse/memcached&distro=SUSE%20Linux%20Enterprise%20Server%20for%20SAP%20applications%2016.0
< 1.6.42+ 5 more
- (no CPE)range: < 1.6.42
- (no CPE)range: < 1.6.23-7.el10_2.1
- (no CPE)range: < 1.6.23-7.el10_2.1
- (no CPE)range: < 1.6.42-1.1
- (no CPE)range: < 1.6.38-160000.3.1
- (no CPE)range: < 1.6.38-160000.3.1

Patches

Vulnerability mechanics

References

github.com/memcached/memcached/commit/d13f282b4bce33a9c33b8a1bbf07f12114160fednvdPatch
github.com/memcached/memcached/compare/1.6.41...1.6.42nvdRelease Notes

News mentions

⚡ Weekly Recap: New Linux Flaw, PAN-OS Exploit, AI-Powered Attacks, OAuth Phishing and More
The Hacker News · Jun 1, 2026

cvss	0.526
epss	0.001
exploit	0.000
kev	0.000
patch	-0.070
ransomware	0.000