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CVE-2026-43828

28
FAUCET Score

Default configurations of Apache Shiro send sensitive cookies in HTTPS session without 'Secure' attribute. This issue affects Apache Shiro from 1.0 to 2.1.0, and 3.0.0-alpha-1. Users are recommended to upgrade to version 2.1.1, or 3.0.0-alpha-2 or later, which fixes the issue. In the affected versions, Shiro-native session manager, as well as Remember-Me manager sends JSESSIONID and rememberMe cookies without 'secure' attribute by default.

First published: May 25, 2026Last modified: May 25, 2026

Impacted Technologies

VendorProductVersion(s)CPE
< 2.1.1CPE matchmatch criteria
cpe:2.3:a:apache:shiro:*:*:*:*:*:*:*:*
3.0.0CPE matchmatch criteria
cpe:2.3:a:apache:shiro:3.0.0:alpha1:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 4.0

5.9MEDIUM

CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:A/VC:H/VI:N/VA:N/SC:L/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:Y/R:U/V:X/RE:L/U:Amber

Attack Vector
NETWORK
Attack Complexity
LOW
Attack Requirements
PRESENT
Privileges Required
NONE
User Interaction
ACTIVE
VS Confidentiality
HIGH
VS Integrity
NONE
VS Availability
NONE
SS Confidentiality
LOW
SS Integrity
NONE
SS Availability
NONE
Exploit Maturity
NOT_DEFINED
CvssVersion
4.0

Exploit Intelligence

EPSS Score
0.27%
Probability of exploitation in next 30 days
EPSS Percentile
19.4%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0027 is in the 20th percentile among its peer group of 26,220 CVEs.

Social Chatter

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

Media Mentions

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 (3)

mavenpatch availablevia ghsa
Product: org.apache.shiro:shiro-webFixed in: 2.2.0
mavenpatch availablevia ghsa
Product: org.apache.shiro:shiro-webFixed in: 3.0.0-alpha-2
apachevendor investigatingvia vendor_rss
View patch

Vendor Advisories (2)

mavenGHSA-c6r4-qjmw-cvj2medium

Apache Shiro sends sensitive cookies in HTTPS session without 'Secure' attribute

May 26, 2026
apacheapache:www.mail-archive.com/[email protected]/msg11144.html

CVE-2026-43828: Apache Shiro: Shiro's native session and rememberMe cookies do not have secure flag set by default

May 25, 2026

References

openwall.com / lists/oss-security/2026/05/25/7
Mailing ListThird Party Advisory
shiro.apache.org / security-reports.html
Vendor Advisory