CVE-2022-26138
CRITICALCISA KEVEPSS 100th pctlDescription
The Atlassian Questions For Confluence app for Confluence Server and Data Center creates a Confluence user account in the confluence-users group with the username disabledsystemuser and a hardcoded password. A remote, unauthenticated attacker with knowledge of the hardcoded password could exploit this to log into Confluence and access all content accessible to users in the confluence-users group. This user account is created when installing versions 2.7.34, 2.7.35, and 3.0.2 of the app.
How to fix
Actively exploited, no published fix found yet
CISA required action: Apply updates per vendor instructions.
Federal remediation due: 2022-08-19
Mitigation guidance may be in the linked vendor advisories in the References section below.
TridentStack Control tracks known vulnerabilities across your Windows, macOS, and Linux fleet and shows the fix as soon as one is published. See how it works
CVSS v3 Vector
Exploitability
Impact
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Exploit Intelligence
Very high risk: more likely to be exploited than 100% of all known CVEs.
Atlassian Questions For Confluence App Hard-coded Credentials Vulnerability
Atlassian Questions For Confluence App has hard-coded credentials, exposing the username and password in plaintext. A remote unauthenticated attacker can use these credentials to log into Confluence and access all content accessible to users in the confluence-users group.
Apply updates per vendor instructions.
Remediation due: 2022-08-19
References
Related Vulnerabilities
Other CWE-798 (Hard-coded Credentials) vulnerabilities, ordered by exploit likelihood. View all
| CVE | Severity | CVSS | EPSS | Exploited | Fix |
|---|---|---|---|---|---|
| CVE-2024-3272 | Critical | 9.8 | 98% | KEV | - |
| CVE-2019-15975 | Critical | 9.8 | 96% | - | Fix |
| CVE-2025-30406 | Critical | 9.0 | 94% | KEV | Fix |
| CVE-2024-28987 | Critical | 9.1 | 93% | KEV | Fix |
| CVE-2019-15976 | Critical | 9.8 | 93% | - | Fix |
| CVE-2024-20439 | Critical | 9.8 | 92% | KEV | Fix |
Common questions
How do I fix CVE-2022-26138?
No published fix for CVE-2022-26138 has been found yet. It is on the CISA Known Exploited Vulnerabilities list; federal agencies must remediate by 2022-08-19. Apply the vendor's mitigations per CISA's guidance.
Is CVE-2022-26138 being actively exploited?
Yes. CVE-2022-26138 is listed in the CISA Known Exploited Vulnerabilities catalog, which means exploitation has been observed in the wild. US federal agencies were required to remediate it by 2022-08-19. Treat it as a priority whatever its CVSS score says.
How severe is CVE-2022-26138?
CVE-2022-26138 has a CVSS v3 base score of 9.8, rated critical. CVSS rates the technical impact if the vulnerability is exploited, not how likely that is, so weigh it alongside the exploit-prediction score when you decide what to patch first.
Embed a live status badge for CVE-2022-26138
Markdown
[](https://tridentstack.com/cve/CVE-2022-26138)HTML
<a href="https://tridentstack.com/cve/CVE-2022-26138"><img src="https://tridentstack.com/cve/badge/CVE-2022-26138.svg" alt="CVE-2022-26138"></a>Find and fix vulnerabilities across your fleet
TridentStack Control continuously scans your Windows, macOS, and Linux fleet for known vulnerabilities, prioritizes them by severity and active exploitation, and patches them automatically.
This product uses NVD data but is not endorsed or certified by the NVD. EPSS scores courtesy of FIRST.org (https://www.first.org/epss). Source: CISA KEV Catalog. Data as of 2026-01-14.