CVE-2016-9177
Spark allows remote attackers to read arbitrary files via a .. (dot dot) in the URI
CVE-2016-9177 is a high vulnerability (CVSS 7.5) in Sparkjava Spark, published November 4, 2016. Public exploit code exists. EPSS puts the chance of exploitation in the next 30 days at 5.07%, the 92nd percentile. Fixed in com.sparkjava:spark-core 2.5.2.
Directory traversal vulnerability in Spark 2.5 allows remote attackers to read arbitrary files via a .. (dot dot) in the URI.
Attack profile
How easy it is to exploit
- Attack vector
- Network
- Complexity
- Low
- Privileges needed
- None
- User interaction
- None
What an attacker can affect
- Confidentiality
- High
- Integrity
- None
- Availability
- None
Exploit likelihood
What each source reports
NVD Score used
Directory traversal vulnerability in Spark 2.5 allows remote attackers to read arbitrary files via a .. (dot dot) in the URI.
- Record
CVE-2016-9177- CVSS 3.0
- 7.5 High
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N - CVSS 2.0
- 5.0 Medium
AV:N/AC:L/Au:N/C:P/I:N/A:N - Weakness
- CWE-22
- Updated
- 2026-11-02
CVE List No score
Directory traversal vulnerability in Spark 2.5 allows remote attackers to read arbitrary files via a .. (dot dot) in the URI.
- Record
CVE-2016-9177- Updated
- 2026-11-02
EUVDEUVD-2018-0548 No score
Directory traversal vulnerability in Spark 2.5 allows remote attackers to read arbitrary files via a .. (dot dot) in the URI.
- Record
EUVD-2018-0548- Updated
- 2026-11-03
GitHub AdvisoriesGHSA-89gc-6cw6-4vch
Spark allows remote attackers to read arbitrary files via a .. (dot dot) in the URI
Directory traversal vulnerability in Spark 2.5 allows remote attackers to read arbitrary files via a .. (dot dot) in the URI.
- Record
GHSA-89gc-6cw6-4vch- CVSS 3.0
- 7.5 High
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N - Weakness
- CWE-22
- Updated
- 2026-11-02
OSV
Directory traversal vulnerability in Spark 2.5 allows remote attackers to read arbitrary files via a .. (dot dot) in the URI.
- Record
CVE-2016-9177- CVSS 3.0
- 7.5 High
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N - Updated
- 2026-11-02
OSVGHSA-89gc-6cw6-4vch
Spark allows remote attackers to read arbitrary files via a .. (dot dot) in the URI
Directory traversal vulnerability in Spark 2.5 allows remote attackers to read arbitrary files via a .. (dot dot) in the URI.
- Record
GHSA-89gc-6cw6-4vch- CVSS 3.0
- 7.5 High
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N - Weakness
- CWE-22
- Updated
- 2026-11-02
Affected products
Affected packages
| Package | Affected | Fixed |
|---|---|---|
com.sparkjava:spark-coreMaven |
before 2.5.2 | 2.5.2 |
com.sparkjava:spark-coreMaven |
before 2.5.2, plus listed versions 1.01.11.1.12.0.02.1 Show 5 moreShow less2.22.32.42.52.5.1 |
2.5.2 |
Public exploits
Links only. Every CVE stores no exploit code.
| Source | Link | Date |
|---|---|---|
| PoC in GitHub | shoucheng3/perwendel__spark_CVE-2016-9177_2-5-1 | 2025-08-17 |
History
| When | Changed | Sources |
|---|---|---|
| 2026-11-03 | aliases | EUVD |
| 2026-11-02 | created | CVE List, GitHub Advisories, NVD, OSV, PoC in GitHub |