main.c in Tinyproxy 1.8.4 and earlier creates a /run/tinyproxy/tinyproxy.pid file after…
Priority LOW 25CWE-269Published · Updated
Key facts
- Attack vector
- Local
- Privileges required
- Low
- User interaction
- None
- Attack complexity
- Low
- Impact type
- Privilege escalation
- Confidentiality · integrity · availability
- None · None · High
- Fix status
- No fix listed
Attack profile from CVSS 3.0 · NVD. Fix status from CNA. Impact type from CWE-269.
Summary
main.c in Tinyproxy 1.8.4 and earlier creates a /run/tinyproxy/tinyproxy.pid file after dropping privileges to a non-root account, which might allow local users to kill arbitrary processes by leveraging access to this non-root account for tinyproxy.pid modification before a root script executes a "kill `cat /run/tinyproxy/tinyproxy.pid`" command.
Why it matters now
EPSS 0.00292 21st percentileScored 2026-11-07
Fix No fix listed No fixed version in the sources yet
SSVC decision points
Not available: CISA has not published SSVC decision points for this record.
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
CPE configurations NVD · 1
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:a:tinyproxy_project:tinyproxy:*:*:*:*:*:*:*:* | up to 1.8.4 | Vulnerable | Tinyproxy Project |
- cpe:2.3:a:tinyproxy_project:tinyproxy:*:*:*:*:*:*:*:* Versions up to 1.8.4 Vulnerable ·Tinyproxy Project
Remediation
No fixed version listed by the sources yet.
Vendor assessments
Timeline
- 2026-10-02 Threatist record created from CVE-2017-11747
- 2026-10-03 Alias added: GHSA-r3gc-6285-7fj7
References
More Tinyproxy Project Tinyproxy vulnerabilities
- TI-2023-27093 Use after free in Tinyproxy CVSS 3.1CRITICAL 9.8
- TI-2026-24395 Tinyproxy HTTP request parsing desynchronization via case-sensitive Transfer-Encoding handling CVSS 4.0HIGH 8.7
- TI-2022-19200 Potential leak of left-over heap data if custom error page templates containing special… CVSS 3.1HIGH 7.5
- TI-2025-39495 Tinyproxy through 1.11.2 contains an integer overflow vulnerability in the… CVSS 3.1MEDIUM 6.5
Sources
- CVE-2017-11747 · CVE Program
- CVE-2017-11747 · NVD
- FIRST EPSS
- GHSA-r3gc-6285-7fj7 · GitHub Advisory Database · CC BY 4.0
- CVE-2017-11747 · Red Hat security data · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences