CVE-2018-18778
ACME mini_httpd before 1.30 lets remote users read arbitrary files.
CVE-2018-18778 is a medium vulnerability (CVSS 6.5) in Acme Mini-httpd, published October 29, 2018. Public exploit code exists. EPSS puts the chance of exploitation in the next 30 days at 70.8%, the 99th percentile. Fixed in mini_httpd 1.30-r0.
ACME mini_httpd before 1.30 lets remote users read arbitrary files.
Attack profile
How easy it is to exploit
- Attack vector
- Network
- Complexity
- Low
- Privileges needed
- Low
- User interaction
- None
What an attacker can affect
- Confidentiality
- High
- Integrity
- None
- Availability
- None
Exploit likelihood
What each source reports
NVD Score used
6.5
ACME mini_httpd before 1.30 lets remote users read arbitrary files.
- Record
CVE-2018-18778- CVSS 3.0
- 6.5 Medium
CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N - CVSS 2.0
- 4.0 Medium
AV:N/AC:L/Au:S/C:P/I:N/A:N - Weakness
- CWE-200
- Updated
- 2026-11-02
CVE List No score
ACME mini_httpd before 1.30 lets remote users read arbitrary files.
- Record
CVE-2018-18778- Updated
- 2026-11-02
EUVDEUVD-2018-10494 No score
ACME mini_httpd before 1.30 lets remote users read arbitrary files.
- Record
EUVD-2018-10494- Updated
- 2026-11-03
GitHub AdvisoriesGHSA-mqv7-r447-6j8x
6.5
ACME mini_httpd before 1.30 lets remote users read arbitrary files.
ACME mini_httpd before 1.30 lets remote users read arbitrary files.
- Record
GHSA-mqv7-r447-6j8x- CVSS 3.0
- 6.5 Medium
CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N - Weakness
- CWE-200
- Updated
- 2026-11-02
OSVALPINE-CVE-2018-18778
6.5
ACME mini_httpd before 1.30 lets remote users read arbitrary files.
- Record
ALPINE-CVE-2018-18778- CVSS 3.0
- 6.5 Medium
CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N - Updated
- 2026-11-02
OSV
6.5
ACME mini_httpd before 1.30 lets remote users read arbitrary files.
- Record
CVE-2018-18778- CVSS 3.0
- 6.5 Medium
CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N - Updated
- 2026-11-02
OSVDEBIAN-CVE-2018-18778
6.5
ACME mini_httpd before 1.30 lets remote users read arbitrary files.
- Record
DEBIAN-CVE-2018-18778- CVSS 3.0
- 6.5 Medium
CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N - Updated
- 2026-11-02
OSVUBUNTU-CVE-2018-18778
6.5
ACME mini_httpd before 1.30 lets remote users read arbitrary files.
- Record
UBUNTU-CVE-2018-18778- CVSS 3.0
- 6.5 Medium
CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N - Updated
- 2026-11-02
OSVUSN-4848-1 No score
mini-httpd vulnerability
It was discovered that ACME mini_httpd did not properly handle HTTP GET requests with empty headers. A remote attacker could use this vulnerability to read arbitrary files.
- Record
USN-4848-1- Updated
- 2026-11-02
Affected products
Affected packages
| Package | Affected | Fixed |
|---|---|---|
mini_httpdAlpine:v3.10 |
before 1.30-r0 | 1.30-r0 |
mini_httpdAlpine:v3.11 |
before 1.30-r0 | 1.30-r0 |
mini_httpdAlpine:v3.12 |
before 1.30-r0 | 1.30-r0 |
mini_httpdAlpine:v3.13 |
before 1.30-r0 | 1.30-r0 |
mini_httpdAlpine:v3.14 |
before 1.30-r0 | 1.30-r0 |
mini_httpdAlpine:v3.15 |
before 1.30-r0 | 1.30-r0 |
mini_httpdAlpine:v3.16 |
before 1.30-r0 | 1.30-r0 |
mini_httpdAlpine:v3.17 |
before 1.30-r0 | 1.30-r0 |
mini_httpdAlpine:v3.18 |
before 1.30-r0 | 1.30-r0 |
mini_httpdAlpine:v3.19 |
before 1.30-r0 | 1.30-r0 |
Show 11 moreShow less
| Package | Affected | Fixed |
|---|---|---|
mini_httpdAlpine:v3.20 |
before 1.30-r0 | 1.30-r0 |
mini_httpdAlpine:v3.21 |
before 1.30-r0 | 1.30-r0 |
mini_httpdAlpine:v3.22 |
before 1.30-r0 | 1.30-r0 |
mini_httpdAlpine:v3.23 |
before 1.30-r0 | 1.30-r0 |
mini_httpdAlpine:v3.24 |
before 1.30-r0 | 1.30-r0 |
mini-httpdDebian:12 |
before 1.30-0.1 | 1.30-0.1 |
mini-httpdDebian:13 |
before 1.30-0.1 | 1.30-0.1 |
mini-httpdDebian:14 |
before 1.30-0.1 | 1.30-0.1 |
mini-httpdUbuntu:Pro:14.04:LTS |
before 1.19-9.3ubuntu0.1~esm1, plus listed versions 1.19-9.3 |
1.19-9.3ubuntu0.1~esm1 |
mini-httpdUbuntu:Pro:16.04:LTS |
before 1.23-1ubuntu0.1~esm1, plus listed versions 1.19-9.31.21-1ubuntu11.23-1 |
1.23-1ubuntu0.1~esm1 |
mini-httpdUbuntu:Pro:18.04:LTS |
before 1.23-1.2ubuntu0.1~esm1, plus listed versions 1.23-1.21.23-1.2build1 |
1.23-1.2ubuntu0.1~esm1 |
Public exploits
Links only. Every CVE stores no exploit code.
| Source | Link | Date |
|---|---|---|
| Nuclei | ACME mini_httpd <1.30 - Local File Inclusion | |
| PoC in GitHub | auk0x01/CVE-2018-18778-Scanner | 2024-01-06 |
| PoC in GitHub | cyberharsh/Mini_httpd-CVE-2018-18778 | 2020-06-20 |
History
| When | Changed | Sources |
|---|---|---|
| 2026-11-03 | aliases | EUVD |
| 2026-11-02 | created | CVE List, GitHub Advisories, Nuclei, NVD, OSV, PoC in GitHub |
References
acme.com/software/mini_httpd
nvd.nist.gov/vuln/detail/CVE-2018-18778
github.com/advisories/GHSA-mqv7-r447-6j8x
security.alpinelinux.org/vuln/CVE-2018-18778
security-tracker.debian.org/tracker/CVE-2018-18778
ubuntu.com/security/CVE-2018-18778
ubuntu.com/security/notices/USN-4848-1
cve.org/CVERecord?id=CVE-2018-18778