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CVE-2026-57853 CVE Vulnerability Disclosures / 6h DataGerry before 3.3.0 contains a server-side template injection vulnerability that allows authenticated attackers with base.docapi.template.add permission to store arbitrary Jinja2 payloads in the template_data field via POST /rest/docapi/template, which is later rendered in a non-sandboxed Jinja2 environment when a user calls GET /rest/docapi/template/ /render/ . Attackers can exploit the standard cycler.init.globals.os gadget chain to

cve.report • November 5, 2026

CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

Problem Types: CWE-79 | CWE-1336 | CWE-1336 Improper Neutralization of Special Elements Used in a Template Engine | CWE-79 Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')

CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

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

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This article is one source in a clustered incident — the cluster page carries the summary, timeline and every other outlet covering it.

Server-Side Template Injection Vulnerability in DataGerry A severe server-side template injection vulnerability, CVE-2026-57853, has been identified in DataGerry versions prior to 3.3.0. This flaw allows authenticated attackers with 'base.docapi.template.add' permission to inject arbitrary Jinja2 payloads into the 'template_data' field via a POST request. When rendered through a GET request, the payload executes in a non-sandboxed environment, enabling attackers to run arbitrary OS commands as the DataGerry web process user, typically root in Docker deployments. The vulnerability was published on November 4, 2026, and has a CVSS score of 8.8, indicating a high severity. A patch has been released, and users are urged to upgrade to version 3.3.0 or later. There are currently no reports of public exploitation or proof-of-concept code. Security teams are advised to restrict permissions and monitor for suspicious activity. 1 sources 71

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Extracted Entities

CVEs (1)

CWE Weaknesses (1)

Tools (1)

Vulnerabilities (1)