CVE-2026-90698
mediumpriority · track · 21EPSS 0.009 · 58 %ileDEEPSS · scored 2026-10-27
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
Technical severity, 0–10. One row per scoring source.
base score 0–10 · higher = more severe · hover a vector to decode⚠ sources disagree · low–medium · 2.7–5.5
ssvc
A stakeholder decision — act, attend, or track — from exploitation and impact.
weaknesses
The CWE weakness classes this flaw belongs to.
affected products (2)
Products and version ranges known to be affected.
advisories (1)
Vendor and ecosystem advisories describing this.
- WID-SEC-W-2026-3336memcached: Schwachstelle ermöglicht Denial of ServiceDeutsch2026-09-13csaf · cert_bundDE
Ein entfernter, anonymer Angreifer kann eine Schwachstelle in memcached ausnutzen, um einen Denial of Service Angriff durchzuführen.
sources
Which sources assert this record, and when.
references (9) nvd
External citations — patches, advisories, analysis.
- https://github.com/memcached/memcached/
- https://github.com/memcached/memcached/commit/af05c9302bba508b736c3da1d5670f63fe8b7db4
- 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
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