Vulnerability Description
Notification template Jinja AST whitelist only inspects static Getattr nodes. Dynamic subscripts (job['job'+'_env']) and {% if job.id > 100 %} conditional gating bypass both the AST check and the test-render (stub has small job.id). At runtime, the gated branch executes and exceptions write full tracebacks into notification body, which is POSTed to attacker-controlled webhook URL. Leaks install paths, Python version, source line numbers.
CVSS Score
LOW
Related Weaknesses (CWE)
References
- https://access.redhat.com/errata/RHSA-2026:71113
- https://access.redhat.com/errata/RHSA-2026:71114
- https://access.redhat.com/errata/RHSA-2026:71177
- https://access.redhat.com/errata/RHSA-2026:71179
- https://access.redhat.com/security/cve/CVE-2026-71463
- https://bugzilla.redhat.com/show_bug.cgi?id=2512372
FAQ
What is CVE-2026-71463?
CVE-2026-71463 is a vulnerability with a CVSS score of 2.7 (LOW). Notification template Jinja AST whitelist only inspects static Getattr nodes. Dynamic subscripts (job['job'+'_env']) and {% if job.id > 100 %} conditional gating bypass bot...
How severe is CVE-2026-71463?
CVE-2026-71463 has been rated LOW with a CVSS base score of 2.7/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2026-71463?
Check the references section above for vendor advisories and patch information. Review vendor security bulletins for remediation guidance.