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Fencer Intel
medium 6.5

CVE-2026-43828 json

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

published 5mo ago modified 3mo ago also EUVD-2026-31734 , GHSA-c6r4-qjmw-cvj2

cvss
6.5
version 3.1, NVD
cisa kev
Not listed
not in CISA's catalog
epss
0.3%
EPSS 0.3% chance of exploitation in 30 days, percentile 19%
public exploits
0
none known

Summary

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.

Patch / fix

  • maven org.apache.shiro:shiro-web 2.2.0, 3.0.0-alpha-2
  • apache shiro 2.1.1, 3.0.0-alpha-2
  • org.apache.shiro shiro-web 2.1.1, 3.0.0-alpha-2

Is CVE-2026-43828 in your dependencies? Fencer shows which of your repositories are affected as soon as an advisory lands, and opens the fix as a pull request.

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Vendor advisories

What the vendors themselves say about their products: affected, fixed or not affected, and what to do.

red hat product security vex CVE-2026-43828 updated cvss 6.5

apache-shiro: Apache Shiro: Information disclosure via insecure cookie handling

  • Red Hat Fuse 7 shiro-web
    affected: no fix planned “Out of support scope”
  • Red Hat JBoss Enterprise Application Platform Expansion Pack shiro-web
    affected: no fix available “Fix deferred”

Red Hat CSAF VEX © Red Hat, Inc., from https://security.access.redhat.com/data/csaf/v2/vex/; changed: reduced to product statuses and remediations. CC BY 4.0 · csaf

CISA SSVC

Exploitation
none
Automatable
no
Technical impact
partial
Assessed
5mo ago

Exploit prediction

0.27% chance of exploitation in the next 30 days, higher than 19% of all scored CVEs (FIRST EPSS, 2026-11-09).

CVSS scores

assigned by version score vector
CNA 4.0 5.9 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/AU:Y/R:U/RE:L/U:Amber
CNA 4.0 5.9 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
NVD 3.1 6.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N

Affected packages

ecosystem package affected fixed in
maven org.apache.shiro:shiro-web
>=1.0.0-incubating, <2.2.0
>=3.0.0-alpha-1, <3.0.0-alpha-2
2.2.0
3.0.0-alpha-2

Affected products

  • Apache Software Foundation Apache Shiro

Classification

Weakness
  • CWE-614 Sensitive Cookie in HTTPS Session Without 'Secure' Attribute

References

Sources

Fencer Intel keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.

CPEs and fixed versions use Anchore's correction of NVD's data: Added CPE configurations because not yet analyzed by NVD.