CVE-2026-7826

9.1 CRITICALpublic exploit available

Published 2026-10-09 · Updated 2026-10-09

AI risk analysis

Summary: This flaw involves a heap-based out-of-bounds read in FalkorDB, allowing a remote attacker to cause a denial of service or disclose heap memory by exploiting a crafted RDB stream.
Exploitability: Exploitation requires the ability to issue Redis replication commands, such as against an instance with no password configured. The attacker must supply a crafted RDB stream with a sub-buffer length field that exceeds the remaining buffer size.
Blast radius: If exploited, this could result in a denial of service or disclosure of sensitive heap memory contents, impacting the availability and confidentiality of the affected system.
Detection: No reliable host or network indicator is derivable from the published description.
Prioritized remediation: Upgrade to FalkorDB 4.18.4 or later.

dosmemory-disclosureredisfalkordb

Analysis generated locally by qwen2.5:7b-instruct (no data left the box). AI-assisted — verify against primary sources before acting.

NVD description

A heap-based out-of-bounds read in the BufferSerializerIOv2_ReadBuffer function (src/serializers/serializer_io.c) in FalkorDB before 4.18.4 allows a remote attacker who can issue Redis replication commands (for example, against an instance with no password configured) to cause a denial of service or disclose heap memory by supplying a crafted RDB stream whose sub-buffer length field exceeds the remaining buffer size. The only bounds check is an ASSERT(), which is compiled out in release builds, so memcpy() reads past the end of the heap allocation.

CVSS vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H

Weaknesses

CWE-125

Public exploit & PoC references

All references

Source data: NVD (nvd.nist.gov), public domain. Exploit-DB.ai adds local AI analysis for defensive use only.

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