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High 8.1Published May 20, 2026
CVE-2026-47783In 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.
Updated under an hour ago ()
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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.
- CVSS
- 8.1 HIGH (v3.1, NVD)CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
- Weakness (CWE)
- CWE-208
- Known exploited
- Not in CISA's KEV catalog
- EPSS (exploitation in the next 30 days)
- Not loaded for this CVE
- Assigned by
- Not given
- NVD analysis
- Modified
- Record last updated
- Sep 18, 2026
- First seen by InfoSec Signals
- Oct 9, 2026
Affected products
memcached memcached memcached:memcached | before 1.6.42 | NVD |
References
- https://github.com/memcached/memcached/commit/d13f282b4bce33a9c33b8a1bbf07f12114160fedpatch
- https://github.com/memcached/memcached/compare/1.6.41...1.6.42release-notes
- https://github.com/memcached/memcached/wiki/ReleaseNotes1642release-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
The CVE record on cve.org NVD's entry
The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.