Vulnerability Description
Dragonfly is an in-memory data store built for modern application workloads. Prior to 1.40.0, CMS.INITBYDIM and CMS.INITBYPROB accept dimensions whose width times depth times sizeof(int64_t) overflows in src/core/cms.cc, allocating an undersized counter buffer while CMS.INCRBY and CMS.QUERY use the unbounded dimensions, which allows an unauthenticated remote client to corrupt or disclose adjacent heap memory and crash the server. This issue is fixed in version 1.40.0.
Related Weaknesses (CWE)
References
- https://github.com/dragonflydb/dragonfly/commit/c004623249fe2151dc5d64e21364fb9f
- https://github.com/dragonflydb/dragonfly/pull/7647
- https://github.com/dragonflydb/dragonfly/releases/tag/v1.40.0
- https://github.com/dragonflydb/dragonfly/security/advisories/GHSA-cmmv-h748-v93x
- https://github.com/dragonflydb/dragonfly/security/advisories/GHSA-cmmv-h748-v93x
FAQ
What is CVE-2026-62357?
CVE-2026-62357 is a documented vulnerability. Dragonfly is an in-memory data store built for modern application workloads. Prior to 1.40.0, CMS.INITBYDIM and CMS.INITBYPROB accept dimensions whose width times depth times sizeof(int64_t) overflows...
How severe is CVE-2026-62357?
CVSS scoring is not yet available for CVE-2026-62357. Check NVD for updates.
Is there a patch for CVE-2026-62357?
Check the references section above for vendor advisories and patch information. Review vendor security bulletins for remediation guidance.