---
title: "CVE-2026-105856: Payload - SQL Injection"
description: "Payload before 3.90.0 and 4.0.0-canary.34 contains a SQL injection caused by crafted field path and operators in JSON or blocks fields with blocksAsJSON enabled, letting attackers with read and create or update access inject SQL."
url: https://panop.io/threat-heartbeat/CVE-2026-105856/
---

# CVE-2026-105856 Payload - SQL Injection

Payload before 3.90.0 and 4.0.0-canary.34 contains a SQL injection caused by crafted field path and operators in JSON or blocks fields with blocksAsJSON enabled, letting attackers with read and create or update access inject SQL.

CVSS base score 8.3 /10

High

CISA KEV

Not listed

Public exploit

None known

Authentication

Required

EPSS

0.27% chance of exploitation in 30 days

[View the NVD record ↗](https://nvd.nist.gov/vuln/detail/CVE-2026-105856)

## Details

Type

SQL Injection

Impact

SQL Injection

CVSS vector

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:L

Published

6 October 2026

Updated

15 October 2026

Weakness

[CWE-89](https://cwe.mitre.org/data/definitions/89.html)

## Vendor fix

Upgrade to version 3.90.0, 4.0.0-canary.34, or 3.73.0 for Postgres packages.

Patching closes this CVE. It does not tell you which of your systems run the affected version, or what else is exposed alongside them.

## References

- [https://nvd.nist.gov/vuln/detail/CVE-2026-105856](https://nvd.nist.gov/vuln/detail/CVE-2026-105856)
- [https://github.com/payloadcms/payload/commit/03b78c7e0901d19c67f07bdf6396a276010adbcc](https://github.com/payloadcms/payload/commit/03b78c7e0901d19c67f07bdf6396a276010adbcc)
- [https://github.com/payloadcms/payload/releases/tag/v3.90.0](https://github.com/payloadcms/payload/releases/tag/v3.90.0)
- [https://github.com/payloadcms/payload/security/advisories/GHSA-pj7x-6wpf-pgvp](https://github.com/payloadcms/payload/security/advisories/GHSA-pj7x-6wpf-pgvp)

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## What this record can't tell you

- Whether you run the affected software, and where
- Whether an attacker can actually reach and exploit it
- The misconfigurations that never get a CVE number
- What it would cost the business, ranked into what to fix first

Panop answers these inside your environment, for this CVE and every other finding.

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