CVE-2026-90698 PUBLISHED

memcached mcmc Tokenizer proto_text.c try_read_command_asciiauth out-of-bounds

Assigner: VulDB
Reserved: 13.09.2026 Published: 14.09.2026 Updated: 14.09.2026

A security flaw has been discovered in memcached 1.6.41/1.6.42/1.6.43. This vulnerability affects the function try_read_command_asciiauth of the file proto_text.c of the component mcmc Tokenizer. The manipulation results in out-of-bounds read. It is possible to launch the attack remotely. The exploit has been released to the public and may be used for attacks. Upgrading to version 1.6.44 is able to resolve this issue. The patch is identified as af05c9302bba508b736c3da1d5670f63fe8b7db4. You should upgrade the affected component.

Metrics

CVSS Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:P
CVSS Score: 6.9

Product Status

Vendor n/a
Product memcached
Versions
  • Version 1.6.41 is affected
  • Version 1.6.42 is affected
  • Version 1.6.43 is affected
  • Version 1.6.44 is unaffected

Credits

  • Ebfe7001d27b27064356271ddfb15d59 (VulDB User) reporter

References

Problem Types

  • Out-of-Bounds Read CWE
  • Memory Corruption CWE