# CVE-2026-57853: DataGerry < 3.3.0 SSTI via DocAPI Template Rendering

Status: published. Published: 2026-11-04. Updated: 2026-11-04.

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/<id>/render/<object_id>. Attackers can exploit the standard cycler.__init__.__globals__.os gadget chain to execute arbitrary operating system commands as the DataGerry web process user, confirmed as root in default Docker deployments, achieving remote code execution.

## Remediation

- fix: The reporting source identifies this reference as a patch. Check the advisory for affected versions and supported release branches. (source: CNA: VulnCheck) — https://github.com/DataGerry/DataGerry/releases/tag/3.3.0

## Affected products and versions

- DataGerry / DataGerry (DataGerry/DataGerry): ≥ 0; < 3.3.0 (affected, semver). Source: CNA: VulnCheck

## Severity and prioritization

- CVSS 4.0: 8.7 (high); 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; source: CNA: VulnCheck

- CVSS 3.1: 8.8 (high); CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H; source: CNA: VulnCheck

- CISA KEV: No listing in collected sources

- EPSS: Not available

- SSVC: Not available

- Weaknesses: CWE-1336, CWE-79

## Exploit evidence

No exploit evidence in collected sources. This is not proof of no exploitation.

## References

- https://github.com/DataGerry/DataGerry/releases/tag/3.3.0 (CNA: VulnCheck; patch)

- https://docs.datagerry.com/en/latest/reference/changelog.html (CNA: VulnCheck; release-notes)

- https://www.vulncheck.com/advisories/datagerry-ssti-via-docapi-template-rendering (CNA: VulnCheck; third-party-advisory)

## Provenance

- CNA: VulnCheck: https://www.cve.org/CVERecord?id=CVE-2026-57853; retrieved 2026-11-04; source updated 2026-11-04

Revision: 1fb7f742ce5f0f0c5d06dafa718459adce6563289a5da14954109362e267c43d

Canonical: https://y2.dev/cve/CVE-2026-57853

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