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CVE-2016-6802

29
FAUCET Score

CVE-2016-6802 describes a vulnerability in Apache Shiro versions prior to 1.3.2, where attackers can bypass servlet filters and gain unauthorized access. This high-severity vulnerability (CVSS 7.5) has a network attack vector, low attack complexity, and can lead to high impact on integrity without requiring user interaction. While no public exploit code or active exploitation has been observed, and community discussion is minimal, its FAUCET Risk Score of 81/100 indicates a significant potential risk.

Impacted Technologies

VendorProductVersion(s)CPE
1.3.1CPE matchmatch criteria
cpe:2.3:a:apache:shiro:1.3.1:*:*:*:*:*:*:*

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:N/I:H/A:N

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

Exploit Intelligence

EPSS Score
9.68%
Probability of exploitation in next 30 days
EPSS Percentile
95.0%
Percentile rank of EPSS score among Peer Group
As of 2026-07-24
Model: v2026.06.15
This CVE's current EPSS score of 0.0968 is in the 92nd percentile among its peer group of 51,455 CVEs.

Social Chatter

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 (4)

mavenpatch availablevia ghsa
Product: org.apache.shiro:shiro-allFixed in: 1.3.2
mavenpatch availablevia ghsa
Product: org.apache.shiro:shiro-webFixed in: 1.3.2
redhatno patchvia redhat_api
Product: Red Hat JBoss Fuse Service Works 6.0Fixed in: shiro-web
redhatno patchvia redhat_api
Product: Red Hat OpenShift Enterprise 2Fixed in: shiro-core

Vendor Advisories (2)

mavenGHSA-4q2v-j639-cp7phigh

Improper Access Control in Apache Shiro

May 14, 2022
redhatCVE-2016-6802Moderate

Shiro: Security servlet filters bypass

Sep 13, 2016

References

packetstormsecurity.com / files/138709/Apache-Shiro-Filter-Bypass.html
Third Party AdvisoryVDB Entry
securityfocus.com / archive/1/539397/100/0/threaded
securityfocus.com / bid/92947
Third Party AdvisoryVDB Entry