CVE-2026-125112 PUBLISHED

djust: A template binding inherits a context safety grant it never earned (XSS)

Assigner: GitHub_M
Reserved: 09.11.2026 Published: 09.11.2026 Updated: 09.11.2026

djust provides Phoenix LiveView-style reactive server-side rendering for Django with Rust-powered performance. Prior to versions 1.0.10 and 1.1.2, djust keys context output-safety grants by variable name and fails to revoke a grant when a template bind replaces the value associated with that name. A template using {% with %}, {% for %}, {% include ... with %}, tuple unpacking, or assign tags can therefore rebind a name that previously held mark_safe content and emit the new attacker-controlled value without escaping, including descendant lookups through the rebound name. This can cause stored or reflected cross-site scripting when a victim renders the affected template. This issue is fixed in versions 1.0.10 and 1.1.2.

Metrics

CVSS Vector: CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:P/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N
CVSS Score: 2.3

Product Status

Vendor djust-org
Product djust
Versions
  • Version < 1.0.10 is affected
  • Version >= 1.1.0, < 1.1.2 is affected

References

Problem Types

  • CWE-79: Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') CWE
  • CWE-116: Improper Encoding or Escaping of Output CWE