CVE-2026-7826

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.

References

https://github.com/FalkorDB/FalkorDB/releases/tag/v4.18.4

https://github.com/FalkorDB/FalkorDB/pull/1972

https://github.com/FalkorDB/FalkorDB/commit/55d986f45ecd5d80f7a9e5e138e8b0f96535b48c

https://euvd.enisa.europa.eu/vulnerability/EUVD-2026-95475

Details

Source: Mitre, NVD

Risk Information

CVSS v2

CVSS v3

CVSS v4

EPSS