CVE-2026-18852

A vulnerability has been found in epsilla-cloud vectordb up to 0.3.18/df5a5f5afb85a2376a0f2f316c79dea9b2c6ac7a. This impacts the function SplitTokens/ShuntingYard of the file engine/query/expr/expr.cpp of the component Filter Parser. Such manipulation leads to improper check for unusual conditions. The attack needs to be performed locally. The exploit has been disclosed to the public and may be used. The vendor was contacted early about this disclosure but did not respond in any way.

CVSS 4.0

1.9CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:P

CVSS 3.1

3.3CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L

EPSS

0.2% chance of exploitation in the next 30 days; higher than 5% of CVEs (scores of 2026-10-25)

CWE

CWE-754

Published

2026-08-05

Modified

2026-10-23

Record from

the NVD, synced 2026-10-24

References

• https://github.com/fa1c4/security-advisories/tree/main/VectorDB
• https://github.com/fa1c4/security-advisories/tree/main/VectorDB/PoC
• https://vuldb.com/cve/CVE-2026-18852
• https://vuldb.com/submit/858196
• https://vuldb.com/vuln/385857

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