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CVE-2026-119144 — frappe

CVE-2026-119144 is a CWE-1336 vulnerability. A fix is available — see the affected versions and patch details below.

Frappe Framework before 15.111.0 and 16.x before 16.21.0 Server-Side Template Injection via Message Fields

Also known asGHSA-6pmg-vc6m-6wrr
Published
Updated
Affected
843 versions
Patched
See advisory
Exploits
None indexed
Exploitation data as of Oct 30, 2026 · OSV.dev, NVD, FIRST.org (EPSS)

Description

Frappe Framework before 15.111.0 and 16.x before 16.21.0 contains a server-side template injection vulnerability because user-controlled message fields are rendered as templates without neutralization. An authenticated attacker holding a common operational role can inject template expressions that the server evaluates in an unrestricted context.

Detection & mitigation playbook

Vulnerability
  1. Detect

    Identify every host running the affected component and compare the installed build against the fixed version below — for source-built or distro-packaged software the version string, not a lockfile, is the source of truth (`dpkg -l`, `rpm -q`, or the binary's own `--version`).

  2. Fix

    Upgrade the affected component to the fixed release for CVE-2026-119144, or apply your distribution's backported patch — distro builds are often patched at an older version number, so check your vendor's advisory rather than the upstream version alone.

  3. Workarounds

    If you can't upgrade right away: gate or disable the affected feature, validate untrusted input at the boundary, and avoid passing attacker-controlled data into the vulnerable path. O3's runtime protection blocks exploitation in production as an interim safeguard until the upgrade lands.

Frequently Asked Questions

Frappe Framework before 15.111.0 and 16.x before 16.21.0 contains a server-side template injection vulnerability because user-controlled message fields are rendered as templates without neutralization. An authenticated attacker holding a common operational role can inject template expressions that the server evaluates in an unrestricted context.
O3 Security · Impact-Aware SCA

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CVE-2026-119144: frappe