Improper Neutralization of Special Elements in Output Used by a Downstream Component in Spring AI - CVE-2026-40967
Published: April 27, 2026
Vulnerability identifier: #VU128238
CSH Severity: High
CVSS v4.0: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:L/VA:L/SC:N/SI:N/SA:N/E:U/U:Amber
CVE-ID: CVE-2026-40967
CWE-ID: CWE-74
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vendor: Pivotal
Affected software:
Spring AI
Spring AI
Detailed vulnerability description
The vulnerability allows a remote attacker to alter vector store queries.
The vulnerability exists due to improper neutralization of special elements in various FilterExpressionConverter implementations when translating user-supplied filter expressions. A remote attacker can supply crafted keys and values to alter vector store queries.
Only applications that use VectorStore implementations and pass user-supplied input as a filterExpression are vulnerable.
How to mitigate CVE-2026-40967
Install security update from vendor's website.