Vulnerability details
CVE-2026-7826
FalkorDB FalkorDB
Heap out-of-bounds read in FalkorDB BufferSerializerIOv2_ReadBuffer via crafted RDB
CVSS 4.0
8.8High
Official 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 scores
| Score | Version | Source | Vector |
|---|---|---|---|
| 8.8High | 4.0 | CVEProject cvelistV5 (CNA) (securin) | CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:N/VA:H/SC:N/SI:N/SA:N |
| 9.1Critical | 3.1 | CVEProject cvelistV5 (CNA) (securin) | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H |
Affected products
| Vendor | Product | Versions | Source |
|---|---|---|---|
| FalkorDB | FalkorDB | v < 4.18.4 | CVEProject cvelistV5 (CNA) |
References and advisories
3
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Details
- Published
- 2026-10-09
- Last updated
- 2026-10-15
- State
- Published
- Assigner (CNA)
- securin
Exploit prediction (EPSS)
0.43%
Probability of exploitation in 30 days
37.7%
Percentile (among all CVEs)
SSVC assessment (CISA)
- Automatable
- Yes
- Exploitation
- None
- Technical impact
- Partial
Weaknesses (CWE)
- CWE-125Out-of-bounds Read