High

Spring AI VectorStore FilterExpression Converter Injection

IdentifiersCVE-2026-40967CWE-94· Improper Control of Generation of…

CVE-2026-40967 is an injection vulnerability in Spring AI affecting various FilterExpressionConverter implementations used by VectorStore components. These converters accept a filter expression object and translate it into backend-specific vector store query languages. In affected versions, keys and values are not properly escaped in several conversion paths, allowing crafted input to alter the generated query. The issue affects Spring AI versions 1.0.0 through 1.0.5 and 1.1.0 through 1.1.4. It is fixed in versions 1.0.6 and 1.1.5.

For your environment

Are you exposed to this one?

Mallory correlates every CVE against your assets, your vendors, and active adversary campaigns. Know which vulnerabilities matter for you, not just which ones are loud.

Start free trial

ANALYST BRIEF

Impact, mitigation & remediation

What it means. What to do now. Patch path, mitigations, and the assume-compromise checklist.

Impact

What an attacker gets, and what they’ve been doing with it.

Successful exploitation allows an attacker to manipulate vector store queries generated from user-controlled filterExpression input. This can affect query integrity and application behavior, and may expose data beyond intended constraints. The provided CVSS v3.1 vector (AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:L/A:L) indicates potential for high confidentiality impact with limited integrity and availability impact.

Mitigation

If you can’t patch tonight, do this now.

If immediate patching is not possible, avoid passing untrusted or user-supplied input directly into VectorStore filterExpression objects. Constrain filter construction to trusted server-side logic, apply strict allowlisting and validation for permitted keys and values, and reduce exposure of affected VectorStore-backed functionality until upgrades can be applied.

Remediation

Patch, then assume compromise.

Upgrade Spring AI to a fixed release: 1.0.6 or later on the 1.0.x branch, or 1.1.5 or later on the 1.1.x branch. Review Spring's security advisory for CVE-2026-40967 and update any affected spring-ai-vector-store dependencies accordingly.

PUBLIC EXPLOITS

Exploits

No public exploits tracked yet. Mallory keeps watching.

VALID 0 / 0 TOTALView more in app

No public exploit code observed for this vulnerability.

EXPOSURE SURFACE

Affected products & vendors

Products and vendors Mallory has correlated with this vulnerability. Open in Mallory to drill down to specific CPE configurations and version ranges.

VendorProductType

BroadcomSpring Aiapplication

Vendor-confirmed product mapping. Mallory continuously reconciles this list against your asset inventory.

ACTIVITY FEED

Recent activity

12 sources tracked across advisories, community write-ups, and news. New activity surfaces here as Mallory finds it.

12 SOURCESView more in app

cvefeed high severityNews

Apr 28, 2026

CVE-2026-40967 - Spring AI Unvalidated Filter Expression Converter Vulnerability (Code Injection)

A vulnerability in Spring AI where improper escaping in FilterExpressionConverter implementations allows alteration of translated vector store queries.

ca ccsNews

Apr 27, 2026

Spring security advisory (AV26-397) - Canadian Centre for Cyber Security

An injection vulnerability in Spring AI's VectorStore FilterExpression Converter affecting Spring AI versions 1.0.x prior to 1.0.6 and 1.1.x prior to 1.1.5.

What this page doesn’t show

The version that knows your environment.

This page is what’s public. Mallory adds the parts that aren’t: which of your assets are affected, which adversaries are exploiting it right now, which detections to deploy, and what to do tonight.

Start free trial

Exposure mapping

Query your assets running an affected version, and investigate the blast radius.

Threat actor evidence

Every observed campaign linking this CVE to a named adversary.

Associated malware

Malware families riding this exploit, with evidence and IOCs.

Detection signatures

YARA, Sigma, Snort, and vendor rules, auto-deployed to your SIEM.

Vendor-by-vendor mapping

Cross-references every affected SKU, including bundled OEM variants.

Social activity9