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CVE-2016-9177

21
FAUCET Score

CVE-2016-9177 is a directory traversal vulnerability in Spark 2.5, allowing unauthenticated remote attackers to read arbitrary files by including "../" sequences in a URI. With a CVSS score of 7.5 (HIGH), this vulnerability has a low attack complexity and can lead to high confidentiality impact without requiring user interaction. Despite its severity, there is no evidence of active exploitation, publicly available exploit code, or significant community discussion or media coverage.

Impacted Technologies

VendorProductVersion(s)CPE
<= 2.5CPE matchmatch criteria
cpe:2.3:a:sparkjava:spark:*:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.0

7.5HIGH

CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
NONE
Availability Impact
NONE
Exploitability Score
3.9
Impact Score
3.6
CvssVersion
3.0

Exploit Intelligence

EPSS Score
5.07%
Probability of exploitation in next 30 days
EPSS Percentile
91.4%
Percentile rank of EPSS score among Peer Group
As of 2026-07-24
Model: v2026.06.15
This CVE's current EPSS score of 0.0507 is in the 85th percentile among its peer group of 51,466 CVEs.

Social Chatter

No social media mentions found for this CVE.

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.1 Bluesky, 0.1 Mastodon, and 0.4 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.1 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Patch Available

Vendor Patches (5)

github_advisorypatch availablevia nvd_reference
View patch
mavenpatch availablevia ghsa
Product: com.sparkjava:spark-coreFixed in: 2.5.2
redhatpatch availablevia redhat_api
Product: Red Hat JBoss A-MQ 6.3
View patch
redhatpatch availablevia redhat_api
Product: Red Hat JBoss Fuse 6.3
View patch
redhatno patchvia redhat_api
Product: Red Hat JBoss Fuse 6Fixed in: Camel

Vendor Advisories (2)

mavenGHSA-89gc-6cw6-4vchhigh

Spark allows remote attackers to read arbitrary files via a .. (dot dot) in the URI

Oct 4, 2018
redhatCVE-2016-9177Moderate

Spark: Directory traversal vulnerability in version 2.5

Nov 4, 2016

References

access.redhat.com / errata/RHSA-2017:0868
seclists.org / fulldisclosure/2016/Nov/13
ExploitMailing ListThird Party Advisory
github.com / perwendel/spark/issues/700
Issue TrackingPatchThird Party Advisory
securityfocus.com / bid/94218
Third Party AdvisoryVDB Entry