Vulnerability Description
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.
CVSS Score
MEDIUM
Related Weaknesses (CWE)
References
- https://github.com/memcached/memcached/
- https://github.com/memcached/memcached/commit/af05c9302bba508b736c3da1d5670f63fe
- https://github.com/memcached/memcached/releases/tag/1.6.44
- https://protectiv.ph/research/memcached-asciiauth-empty-line-dos
- https://vuldb.com/cve/CVE-2026-90698
- https://vuldb.com/submit/916217
- https://vuldb.com/submit/916219
- https://vuldb.com/vuln/403231
- https://vuldb.com/vuln/403231/cti
FAQ
What is CVE-2026-90698?
CVE-2026-90698 is a vulnerability with a CVSS score of 5.3 (MEDIUM). 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 ...
How severe is CVE-2026-90698?
CVE-2026-90698 has been rated MEDIUM with a CVSS base score of 5.3/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2026-90698?
Check the references section above for vendor advisories and patch information. Review vendor security bulletins for remediation guidance.