PatchTheCVECVE-2020-36559: Due to improper sanitization of user input, HTTPEngine.Handle allows for directory traversal, allowing an atta
CVE-2020-36559 is a high-severity flaw (CVSS 7.5) affecting aah. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.
Due to improper sanitization of user input, HTTPEngine.Handle allows for directory traversal, allowing an attacker to read files outside of the target directory that the server has permission to read.
Why this priority
- High severity
- Remotely exploitable, no login, no user action
A fixed release or distro patch exists.
Risk facts
| CVSS score | 7.5 (High) |
| Attack vector | Network (remote) |
| Attack complexity | Low |
| Privileges needed | None |
| User interaction | None |
| EPSS exploit chance | 1.2% (top 31%) |
| CISA exploited list | No |
| Weakness | CWE-22 |
| Published | 2022-12-27 |
| Last modified | 2026-06-17 |
Last updated 2026-06-17 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score
Am I affected?
Timeline
- Published CVE record published
- Updated Record last modified
Scores and fixes here are computed automatically from those and other public sources. Confirm with the vendor advisory before changing production systems.
Quick answers
How do I fix CVE-2020-36559?
aah: upgrade to 0.12.4. Exact commands for each OS are on this page.
Is CVE-2020-36559 being exploited?
CVE-2020-36559 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.
What does CVE-2020-36559 affect?
CVE-2020-36559 affects aah. Severity is high (CVSS 7.5). Due to improper sanitization of user input, HTTPEngine.Handle allows for directory traversal, allowing an attacker to read files outside of the target directory that the server has permission to read.
How urgent is CVE-2020-36559?
Priority 49/100. High severity; Remotely exploitable, no login, no user action