memcached memcached

CVE-2026-47783

HIGH 8.1

At a glance

Source: NVD
EPSS: EPSS 1.26 % · percentile 70 (2026-11-01)
State: PUBLISHED
Published: 2026-05-20 05:43 UTC
Updated: 2026-09-18 12:04 UTC
Assigner: mitre
NVD status: Modified

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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.

Weaknesses (CWE)

CWE-208 — Observable Timing Discrepancy

References

Scores

Version	Score	Vector	Scored by
CVSS 3.1	HIGH 8.1	CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H	mitre
CVSS 3.1	HIGH 8.1	CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H	redhat-SADP
CVSS 3.1	HIGH 8.1	CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H	NVD · cve@mitre.org (Secondary)
CVSS 3.1	HIGH 8.1	CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H	NVD · 0b0ca135-0b70-47e7-9f44-1890c2a1c46c (Secondary)

European references

ENISA EUVD · EUVD-2026-31065
GCVE · GCVE-0-2026-47783

Affected configurations (NVD CPE)

cpe:2.3:a:memcached:memcached:*:*:*:*:*:*:*:* < 1.6.42

Affected products

Product	Versions
memcached · memcached	affected 0 < 1.6.42

Sources

Source	Licence
CVE List (CVEProject cvelistV5)	CVE Program Terms of Use
EPSS (FIRST.org)	FIRST — attribution requested
ENISA EUVD	ENISA — reproduction authorised, source acknowledged
NVD (NIST) via fkie-cad/nvd-json-data-feeds	Public domain — this product uses data from the NVD API but is not endorsed or certified by the NVD