CVE-2022-26138

CRITICALNVD 9.89.8—
EchelonGraph scoreHIGH confidence

Score elevated to 9.8 because this CVE is listed on the CISA Known Exploited Vulnerabilities catalog (added 2022-07-29), indicating real-world exploitation has been confirmed by US federal agencies. NVD baseline CVSS 9.8 retained for reference. Confidence: HIGH.

Triggered by: CISA KEV (actively exploited)
Sources: cisa_kev, epss, ghsa, nvd
Trending — 4 sources updated this weekExploited in the wild
9.8EG
EchelonGraph verdictPatch nowTreat as an emergency — this is being exploited.
  • Actively exploited in the wild (CISA-KEV)
CISA-KEV: ExploitedEPSS PROB: 98%CVSS: 9.8Exploit: cisa kev · ssvc active · epss top5pct · epss high · public exploitExposed: 0

No vendor fix yet — apply a workaround or compensating control (WAF / firewall / segmentation) and watch for a patch.

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.

CVSS v3
9.8
EG Score
9.8(high)
EG Risk
99(Act)
EG Risk 99/100SSVC: Act

EG Risk is EchelonGraph's 0–100 priority score: it fuses intrinsic severity with real-world exploitation and automatability so you can rank equal-severity CVEs and fix the most dangerous first. Higher = act sooner. Distinct from the 0–10 EG Score (severity).

How it’s computed
Severity98% × 45%
Exploitation100% × 40%
Automatability100% × 15%
Action: Fix now — active exploitation, automatable, high impact.
EPSS PROB
98%
EPSS %ILE
100%
KEV
⚠ Exploited

Published

July 20, 2022

Last Modified

January 14, 2026

Advisory Details (3)

Auto-updated Sep 17, 2026
⚠️ Active exploitation confirmed. Patch available. Sources: cisa.
cisa Patch Available🔴 Active Exploitation

Known Exploited Vulnerabilities Catalog | CISA

Known Exploited Vulnerabilities Catalog | CISA. Listed in CISA Known Exploited Vulnerabilities catalog.

https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2022-26138
generic

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https://jira.atlassian.com/browse/CONFSERVER-79483
generic🔴 Active Exploitation

Questions For Confluence Security Advisory 2022-07-20 | Confluence Data Center 10.2 | Atlassian Documentation

https://confluence.atlassian.com/doc/confluence-security-advisory-2022-07-20-1142446709.html

Weakness Classification(1)

MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.

Data Freshness Timeline

(refreshed 49× in last 7d / 207× in last 30d)

Each row is a source pipeline that fetched or updated this CVE on that date, with what changed. For example, "NVD update" means NVD published or revised its analysis for this CVE; "MITRE cvelistV5" means we ingested or refreshed it from the CNA feed. Most recent first.

Showing the most recent 100 of 720 total refreshes for this CVE.

  1. 2026-09-20 00:25 UTCGHSA enrichment
  2. 2026-09-19 20:10 UTCGHSA enrichment
  3. 2026-09-19 15:55 UTCGHSA enrichment
  4. 2026-09-19 11:38 UTCGHSA enrichment
  5. 2026-09-19 07:22 UTCGHSA enrichment
  6. 2026-09-19 03:07 UTCGHSA enrichment
  7. 2026-09-18 22:51 UTCGHSA enrichment
  8. 2026-09-18 19:20 UTCCISA KEV update
  9. 2026-09-18 18:36 UTCGHSA enrichment
  10. 2026-09-18 14:21 UTCGHSA enrichment
  11. 2026-09-18 14:15 UTCCISA KEV update
  12. 2026-09-18 10:06 UTCGHSA enrichment
  13. 2026-09-18 05:51 UTCGHSA enrichment
  14. 2026-09-18 01:36 UTCGHSA enrichment
  15. 2026-09-17 21:21 UTCEG score recompute
  16. 2026-09-17 21:21 UTCGHSA enrichment
  17. 2026-09-17 19:23 UTCEPSS rescore
  18. 2026-09-17 17:05 UTCGHSA enrichment
  19. 2026-09-17 12:13 UTCGHSA enrichment
  20. 2026-09-17 07:58 UTCGHSA enrichment
  21. 2026-09-17 03:43 UTCGHSA enrichment
  22. 2026-09-16 23:28 UTCGHSA enrichment
  23. 2026-09-16 19:12 UTCGHSA enrichment
  24. 2026-09-16 14:57 UTCEG score recompute
  25. 2026-09-16 14:57 UTCGHSA enrichment
Show 75 more
  1. 2026-09-16 14:10 UTCCISA KEV update
  2. 2026-09-16 14:05 UTCEPSS rescore
  3. 2026-09-16 10:41 UTCGHSA enrichment
  4. 2026-09-16 06:24 UTCEG score recompute
  5. 2026-09-16 06:24 UTCGHSA enrichment
  6. 2026-09-16 02:09 UTCGHSA enrichment
  7. 2026-09-15 21:53 UTCGHSA enrichment
  8. 2026-09-15 17:38 UTCGHSA enrichment
  9. 2026-09-15 13:22 UTCGHSA enrichment
  10. 2026-09-15 09:07 UTCGHSA enrichment
  11. 2026-09-15 04:51 UTCGHSA enrichment
  12. 2026-09-15 00:32 UTCGHSA enrichment
  13. 2026-09-14 20:17 UTCGHSA enrichment
  14. 2026-09-14 19:24 UTCCISA KEV update
  15. 2026-09-14 16:02 UTCGHSA enrichment
  16. 2026-09-14 11:47 UTCGHSA enrichment
  17. 2026-09-14 07:32 UTCGHSA enrichment
  18. 2026-09-14 03:17 UTCGHSA enrichment
  19. 2026-09-13 23:02 UTCGHSA enrichment
  20. 2026-09-13 18:47 UTCGHSA enrichment
  21. 2026-09-13 14:32 UTCGHSA enrichment
  22. 2026-09-13 10:17 UTCGHSA enrichment
  23. 2026-09-13 06:02 UTCGHSA enrichment
  24. 2026-09-13 01:47 UTCGHSA enrichment
  25. 2026-09-12 21:32 UTCGHSA enrichment
  26. 2026-09-12 17:16 UTCGHSA enrichment
  27. 2026-09-12 13:01 UTCGHSA enrichment
  28. 2026-09-12 08:46 UTCGHSA enrichment
  29. 2026-09-12 04:30 UTCGHSA enrichment
  30. 2026-09-12 00:15 UTCGHSA enrichment
  31. 2026-09-11 20:00 UTCGHSA enrichment
  32. 2026-09-11 18:49 UTCCISA KEV update
  33. 2026-09-11 15:45 UTCGHSA enrichment
  34. 2026-09-11 11:29 UTCGHSA enrichment
  35. 2026-09-11 07:11 UTCGHSA enrichment
  36. 2026-09-11 02:56 UTCGHSA enrichment
  37. 2026-09-10 22:41 UTCGHSA enrichment
  38. 2026-09-10 19:28 UTCCISA KEV update
  39. 2026-09-10 18:26 UTCGHSA enrichment
  40. 2026-09-10 14:11 UTCGHSA enrichment
  41. 2026-09-10 09:56 UTCGHSA enrichment
  42. 2026-09-10 05:41 UTCGHSA enrichment
  43. 2026-09-10 01:25 UTCGHSA enrichment
  44. 2026-09-09 21:10 UTCGHSA enrichment
  45. 2026-09-09 19:08 UTCCISA KEV update
  46. 2026-09-09 16:54 UTCGHSA enrichment
  47. 2026-09-09 12:35 UTCGHSA enrichment
  48. 2026-09-09 08:18 UTCGHSA enrichment
  49. 2026-09-09 04:03 UTCGHSA enrichment
  50. 2026-09-08 23:48 UTCEG score recompute
  51. 2026-09-08 23:48 UTCGHSA enrichment
  52. 2026-09-08 21:57 UTCEPSS rescore
  53. 2026-09-08 19:30 UTCGHSA enrichment
  54. 2026-09-08 18:54 UTCCISA KEV update
  55. 2026-09-08 15:14 UTCGHSA enrichment
  56. 2026-09-08 11:00 UTCGHSA enrichment
  57. 2026-09-08 06:45 UTCGHSA enrichment
  58. 2026-09-08 02:30 UTCGHSA enrichment
  59. 2026-09-07 22:14 UTCGHSA enrichment
  60. 2026-09-07 17:57 UTCGHSA enrichment
  61. 2026-09-07 13:41 UTCGHSA enrichment
  62. 2026-09-07 09:22 UTCGHSA enrichment
  63. 2026-09-07 05:04 UTCGHSA enrichment
  64. 2026-09-07 00:47 UTCGHSA enrichment
  65. 2026-09-06 20:31 UTCGHSA enrichment
  66. 2026-09-06 16:16 UTCEG score recompute
  67. 2026-09-06 16:16 UTCGHSA enrichment
  68. 2026-09-06 13:45 UTCEPSS rescore
  69. 2026-09-06 12:00 UTCGHSA enrichment
  70. 2026-09-06 07:45 UTCGHSA enrichment
  71. 2026-09-06 03:28 UTCGHSA enrichment
  72. 2026-09-05 23:12 UTCGHSA enrichment
  73. 2026-09-05 18:57 UTCGHSA enrichment
  74. 2026-09-05 14:42 UTCGHSA enrichment
  75. 2026-09-05 10:27 UTCGHSA enrichment

Publicly available exploits

(4 references)

Working exploit code is in the public domain (3 GitHub PoCs). Defenders should treat patch urgency accordingly — public PoCs typically lead to mass-exploitation within 24-72 hours.

  • GitHub PoCz92g/CVE-2022-26138
    First seen Jul 30, 2022

    Confluence Hardcoded Password POC

    Open source ↗
  • GitHub PoCVulnmachines/Confluence-Question-CVE-2022-26138-
    First seen Jul 28, 2022

    Atlassian Confluence Server and Data Center: CVE-2022-26138

    Open source ↗
  • GitHub PoCalcaparra/CVE-2022-26138
    First seen Jul 21, 2022

    Atlassian Questions Hardcoded Password (CVE-2022-26138)

    Open source ↗
  • Nucleihttp/cves/2022/CVE-2022-26138.yaml
    First seen Jan 1, 2022

    Atlassian Questions For Confluence - Hardcoded Credentials

    Open source ↗

Frequently asked(6)

What is CVE-2022-26138?
CVE-2022-26138 is a critical vulnerability published on July 20, 2022. 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…
When was CVE-2022-26138 disclosed?
CVE-2022-26138 was first published in the National Vulnerability Database on July 20, 2022, with the most recent update on January 14, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2022-26138 actively exploited?
Yes. CISA added CVE-2022-26138 to the Known Exploited Vulnerabilities catalog on July 29, 2022, affecting Atlassian Confluence. KEV listing indicates confirmed exploitation in the wild; this CVE warrants immediate patching attention.
What is the CVSS score of CVE-2022-26138?
CVE-2022-26138 has a CVSS v3 base score of 9.8 (NVD).
Which products are affected by CVE-2022-26138?
CVE-2022-26138 affects Atlassian Confluence. The full affected-products list, including version ranges and fixed versions, is shown in the Affected Packages section of this page.
How do I remediate CVE-2022-26138?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2022-26138, EchelonGraph cross-links them in the Vendor Advisories panel below — those typically contain the canonical remediation steps, fixed version numbers, and any vendor-specific mitigations.

Dependency Blast Radius

Explore the affected products and dependency analysis for CVE-2022-26138

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