OS command injection in reNgine via custom_headers scan engine field
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- None
- Attack complexity
- Low
- Impact type
- Code execution
- Confidentiality · integrity · availability
- High · High · High
- Fix status
- No fix listed
Attack profile from CVSS 3.1 · CISA ADP. Fix status from CNA. Impact type from CWE-78.
Summary
reNgine up to v2.2.0 and the current master branch are affected. The custom_headers scan engine configuration field reaches OS commands in the fetch_url and dir_file_fuzz functions without special characters being neutralized (CWE-78). A remote attacker without privileges and without user interaction can run operating system commands, with high impact to confidentiality, integrity and availability.
Written with Claude Haiku 5.5 from the sources below · 2026-10-28
Description from the CNA
reNgine up to v2.2.0 and current master branch (commit de4199222cca5618f1255930ce78987e47d43a99) is vulnerable to OS Command Injection via the custom_headers scan engine configuration field in web/reNgine/tasks.py (fetch_url and dir_file_fuzz functions).
Why it matters now
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- Poc
- Automatable
- Yes
- Technical impact
- Total
The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| — | — | all versions | — | No fix listed | CNA |
- — Vendor— Affected all versions Fixed in — No fix listed CNA
Remediation
The sources list no fixed version for reNgine.
Written with Claude Haiku 5.5 from the sources below · 2026-10-28
Timeline
- 2026-10-13 Threatist record created from CVE-2026-104584
- 2026-10-13 Alias added: GHSA-54m7-7mmj-vwxc
- 2026-10-20 CVSS score added · CISA ADP
- 2026-10-20 Weakness changed · CISA ADP
- 2026-10-20 CISA SSVC decision points changed
- 2026-10-20 Priority changed: LOW → HIGH
References
Sources
- CVE-2026-104584 · CVE Program
- CVE-2026-104584 · NVD
- FIRST EPSS
- GHSA-54m7-7mmj-vwxc · GitHub Advisory Database · CC BY 4.0
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