CVE-2026-47783

8.1 Élevée

Publiée le 20/05/2026 à 09:16 · Modifiée le 18/09/2026 à 15:18 · Modifiée · Source : cve@mitre.org

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.

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Produits concernés

memcached
Red Hat Enterprise Linux 10
Red Hat Enterprise Linux 9
Red Hat Enterprise Linux 6
Red Hat Enterprise Linux 7
Red Hat Enterprise Linux 8
Red Hat Hardened Images
Memcached memcached

Scores CVSS

Version	Score	Source	Vecteur
3.1	8.1 Élevée	cve@mitre.org	`CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H`
3.1	8.1 Élevée	0b0ca135-0b70-47e7-9f44-1890c2a1c46c	`CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H`

Faiblesses (CWE)

CWE-208

Références

https://github.com/memcached/memcached/commit/d13f282b4bce33a9c33b8a1bbf07f12114160fed Patch
https://github.com/memcached/memcached/compare/1.6.41...1.6.42 Release Notes
https://github.com/memcached/memcached/wiki/ReleaseNotes1642 Release Notes
https://access.redhat.com/errata/RHSA-2026:27842
https://access.redhat.com/errata/RHSA-2026:27862
https://access.redhat.com/security/cve/CVE-2026-47783
https://bugzilla.redhat.com/show_bug.cgi?id=2480089
https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-47783.json

Ailleurs

NVD
CVE.org
CIRCL Vulnerability-Lookup
CERT-FR
GitHub Advisories