CVE-2026-40967

Severity: high (CVSS 8.6 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.4% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2026-04-28 · updated 2026-10-26
Weakness: CWE-94

Description

In Spring AI, various FilterExpressionConverter implementations accept a filter expression object and translate them to specific vector store query languages. In several cases, keys and values are not properly escaped, leading to the ability to alter the query. Affected versions: Spring AI: 1.0.0 - 1.0.5 (fixed in 1.0.6), 1.1.0 - 1.1.4 (fixed in 1.1.5)

Affected products

Spring AI: from 1.0.0 before 1.0.6; from 1.1.0 before 1.1.5 — fixed in 1.0.6, 1.1.5
Spring AI: from 1.0.0 before 1.0.6; from 1.1.0 before 1.1.5 — fixed in 1.0.6, 1.1.5

How to fix

Upgrade to a fixed version: Spring AI 1.0.6, 1.1.5; Spring AI 1.0.6, 1.1.5. Check the vendor advisory for mitigations.

References

https://spring.io/security/cve-2026-40967

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