TI-2026-15430 Aliases CVE-2026-18852 GHSA-v276-wxc4-7v7p

epsilla-cloud vectordb Filter expr.cpp ShuntingYard unusual condition

MEDIUM 55CWE-754Published 2026-08-04 · Updated 2026-08-05

Key facts

Attack vector: Local
Privileges required: Low
User interaction: None
Attack complexity: Low
Attack requirements: None
Impact type: —
Confidentiality · integrity · availability: None · None · Low
Fix status: No fix listed

Attack profile from CVSS 4.0 · CNA. Fix status from CNA.

Summary

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.

Why it matters now

Exploitation Proof of concept CISA SSVC · not in CISA KEV

EPSS 0.0016 5th percentileScored 2026-11-07

Public exploit Yes 1 exploit referenceTagged by the CNA

Fix No fix listed No fixed version in the sources yet

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation: Poc
Automatable: No
Technical impact: Partial

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

Vendor	Product	Affected versions	Fixed in	Status	Source
epsilla-cloud	vectordb	0.3.0; 0.3.1; 0.3.2; 0.3.3; 0.3.4; 0.3.5; 0.3.6; 0.3.7; 0.3.8; 0.3.9; 0.3.10; 0.3.11; 0.3.12; 0.3.13; 0.3.14; 0.3.15; 0.3.16; 0.3.17; 0.3.18; df5a5f5afb85a2376a0f2f316c79dea9b2c6ac7a	—	No fix listed	CNA

vectordb Vendorepsilla-cloud Affected 0.3.0; 0.3.1; 0.3.2; 0.3.3; 0.3.4; 0.3.5; 0.3.6; 0.3.7; 0.3.8; 0.3.9; 0.3.10; 0.3.11; 0.3.12; 0.3.13; 0.3.14; 0.3.15; 0.3.16; 0.3.17; 0.3.18; df5a5f5afb85a2376a0f2f316c79dea9b2c6ac7a Fixed in — No fix listed CNA

CPE names CNA · 1

CPE	Versions	Role	Vendor
cpe:2.3:a:epsilla-cloud:vectordb::::::::	—	—	—

cpe:2.3:a:epsilla-cloud:vectordb:*:*:*:*:*:*:*:* Versions — — ·—

Remediation

No fixed version listed by the sources yet.

Timeline

2026-10-02 Threatist record created from CVE-2026-18852
2026-10-03 Alias added: GHSA-v276-wxc4-7v7p

References

Exploit 1

https://github.com/fa1c4/security-advisories/tree/main/VectorDB/PoC

Other 1

https://github.com/fa1c4/security-advisories/tree/main/VectorDB

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences