6.5

CVE-2026-43828: apache software foundation apache shiro

CVSS: 6.5v3.1MediumAnalyzed
AliasesUBUNTU-CVE-2026-43828DEBIAN-CVE-2026-43828GHSA-c6r4-qjmw-cvj2
Published 25-05-2026Last modified 26-05-2026
Open JSON

Vulnerability summary

CVE-2026-43828 is a medium (CVSS 6.5) vulnerability in apache software foundation apache shiro. EPSS estimates a 0.33% chance of exploitation in the next 30 days, higher than 24.7% of scored vulnerabilities.

Overall risk
26/100
0100
Medium · default modelHow is this calculated?
CVSS score
6.5/10
010
Medium · v3.1 (NVD)
EPSS score
0.33%
0%100%
Low · +0.06 pp in 30 days
KEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits0No public exploits recorded

Timeline

  1. 25-05-2026
    PublishedVulnerability first disclosed.
  2. 26-05-2026
    Last modifiedVulnerability information updated.

Description

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.

CVSS metrics

7 scores · 5 sources · 2 versions

EPSS trend

Probability

0.33%

Chance of exploitation in the next 30 days

Percentile

25%

Versus all other CVEs

30-day change

+0.06 pp

From 0.27% on 18-09-2026

18-09-202618-10-2026
EPSS score
0.33%

Known exploited

Compare KEV catalogs

Not in any of the 3 tracked catalogs.

Public exploits

0 found

No public exploits indexed.

Weaknesses

CWE · root cause

Affected systems

Apache1 product
  • shiro< 2.1.1 | 3.0.0:alpha1
Apache software foundation1 product
  • apache shiro≥ 1.0, ≤ 2.1.0 | ≥ 3.0.0-alpha-0, ≤ 3.0.0-alpha-1
Debian1 product
  • shiroAll versions (No fix recorded)
Org.apache.shiro1 product
  • shiro-web≥ 1.0.0-incubating, < 2.2.0 | ≥ 3.0.0-alpha-1, < 3.0.0-alpha-2
Ubuntu1 product
  • shiroAll versions (No fix recorded)

5 vendors · 5 products

References

8 links