TI-2026-83174 Aliases CVE-2026-119699 GHSA-v637-6536-jqxc

Unbounded persisted query storage in WPGraphQL Smart Cache

LOW 37CWE-770Published 2026-10-30 · Updated 2026-11-04

Key facts

Attack vector: Network
Privileges required: None
User interaction: None
Attack complexity: Low
Attack requirements: None
Impact type: Denial of service
Confidentiality · integrity · availability: None · None · Low
Fix status: Fixed

Attack profile from CVSS 4.0 · CNA. Fix status from CNA. Impact type from CWE-770.

Summary

WPGraphQL Smart Cache before 2.3.3 contains an uncontrolled resource consumption flaw (CWE-770) in its Automatic Persisted Query handler. An unauthenticated remote attacker can send distinct queries with matching SHA-256 queryId values, including batched operations, to store unlimited query documents. The stored data grows the wp_posts table without bound and degrades database performance.

Written with Claude Haiku 5.5 from the sources below · 2026-10-30

Description from the CNA

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.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV

EPSS 0.00454 39th percentileScored 2026-11-07

Fix Fixed WPGraphQL Smart Cache (WPGraphQL): 2.3.3

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation: None
Automatable: Yes
Technical impact: Partial

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

Vendor	Product	Affected versions	Fixed in	Status	Source
WPGraphQL	WPGraphQL Smart Cache	before 2.3.3	2.3.3	Patch available	CNA

WPGraphQL Smart Cache VendorWPGraphQL Affected before 2.3.3 Fixed in 2.3.3 Patch available CNA

Remediation

Update WPGraphQL Smart Cache to version 2.3.3 or later.

Written with Claude Haiku 5.5 from the sources below · 2026-10-30

Fix · CNA WPGraphQL Smart Cache (WPGraphQL) Fixed in 2.3.3

Timeline

2026-10-30 Threatist record created from CVE-2026-119699
2026-10-30 Alias added: GHSA-v637-6536-jqxc
2026-11-01 Priority changed: MEDIUM → LOW
2026-11-04 CISA SSVC decision points changed

References

Patch 1

https://github.com/wp-graphql/wp-graphql/commit/80c021c42f4d4969e1b41760a08b4faf3c544a9e

Advisory 1

GitHub Security Advisory (GHSA-5p5r-f66g-r4vp)

Other 3

TI-2021-22572 WordPress Plugin WPGraphQL 1.3.5 Denial of Service CVSS 4.0HIGH 8.7
TI-2026-39574 WPGraphQL has deprecated `user` field on SendPasswordResetEmailPayload that leaks user… CVSS 4.0MEDIUM 6.9
TI-2026-22282 WPGraphQL Repo Vulnerable to Command Injection via Unsanitized GitHub Actions Expression in Release Workflow CVSS 3.1HIGH 7.7
TI-2026-60306 WPGraphQL: Contributor can publish and modify posts without the required capabilities via updatePost CVSS 3.1MEDIUM 5.4
TI-2026-25701 Missing authorization in WPGraphQL wp-graphql CVSS 3.1MEDIUM 4.3
TI-2026-83176 Email flooding in WPGraphQL via aliased password reset mutations CVSS 4.0MEDIUM 6.9

See all 13 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences