CVE-2026-47784
high
CVSS v3
8.1
CVSS v4 NEW
—
VIR risk
8.1
Description
In memcached before 1.6.42, password data for SASL password database authentication has a timing side channel because memcmp is used by sasl_server_userdb_checkpass.
Predictions
Exploit likelihood
88%
Patch ETA
—
Heuristic predictions, AS-IS, for prioritization only.
Mitigations
No mitigations published for this CVE yet.
The vendor-content worker queues fetches as references arrive (check back in a few minutes). Or — if you've already worked around this in production — publish your fix to the community-verified tier.
✚ Propose a mitigation on Community → Mitigations published via the community go through AI scoring + 2 human reviewers + 7-day silent objection window before landing here withsource_tier=community-verified.
OS impact
| OS | Version | Status | Fixed in |
|---|---|---|---|
| sles | affected | | |
| debian | bookworm | affected | |
| debian | bullseye | fixed | 1.6.9+dfsg-1+deb11u1 |
| debian | sid | fixed | 1.6.42-1 |
| debian | trixie | affected | |
| debian | forky | fixed | 1.6.42-1 |
| windows | affected | |
Application impact
| Vendor | Product | Versions | Fixed |
|---|---|---|---|
| memcached | memcached | {"endExcluding":"1.6.42"} | 1.6.42 |
References
- https://github.com/memcached/memcached/commit/d13f282b4bce33a9c33b8a1bbf07f12114160fed
- https://github.com/memcached/memcached/compare/1.6.41...1.6.42
- https://github.com/memcached/memcached/wiki/ReleaseNotes1642
- https://www.suse.com/security/cve/CVE-2026-47784.html
- https://security-tracker.debian.org/tracker/CVE-2026-47784
- https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-47784
CWEs
CWE-208
Community-verified mitigations for this CVE will appear above when contributors publish them.
Verify integrity in audit chain (admin only). AS-IS.