CVE-2026-68561

HIGHPre-NVD 8.88.8—
EchelonGraph scoreMEDIUM confidence

This high-severity CVE scores 8.8 under a secondary CVSS source (NVD's own analysis pending). EPSS exploit probability: 0.4%, top 70% of all CVEs by exploit prediction. GitHub Security Advisory data not yet ingested — confidence will rise once GHSA publishes (typical lag: hours to days for open-source ecosystem CVEs; never for infrastructure-only CVEs).

Triggered by: NVD CVSS baseline
Sources: epss, secondary
Elevated
8.8EG
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 0%CVSS: 8.8Exploit: Elevated riskExposed: 0

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

Wekan is open source kanban built with Meteor. Prior to 9.89, the second Boards.allow({ update }) rule in server/permissions/boards.js called canUpdateBoardSort in server/lib/utils.js, which authorized any board member whenever fieldNames included sort. Because Meteor combines allow rules with OR semantics and applies the complete modifier, a comment-only or read-only member could send one Boards.update with $set values for sort, members, permission, and title, make themselves the sole board administrator, expose a private board, and evict the legitimate owner; the last-admin deny rule inspected only $pull and did not block a wholesale $set of members. Version 9.89 requires sort to be the only modified field and rejects $set member arrays that remove the last active administrator. This issue is fixed in version 9.89.

CVSS v3
8.8
EG Score
8.8(medium)
EG Risk
56(Track*)
EG Risk 56/100SSVC: Track*

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
Severity88% × 45%
Exploitation40% × 40%
Automatability0% × 15%
Action: Watch closely — could escalate to Attend.
EPSS PROB
0%
EPSS %ILE
30%
KEV
Not listed

Published

August 19, 2026

Last Modified

August 25, 2026

Advisory Details (3)

Auto-updated Aug 19, 2026
🔬 Proof of concept available. Patch available. Sources: github, github_commit, github_release.
github_release Patch Available

v9.89

Patch available: wekan/wekan v9.89

https://github.com/wekan/wekan/releases/tag/v9.89
github_commit

commit dc135f6e7d59 (wekan/wekan)

Fix landed in wekan/wekan commit dc135f6e7d59 — awaiting tagged release

https://github.com/wekan/wekan/commit/dc135f6e7d59f9f56065cd5df83b1f123ea120bb
github Patch Available🟡 PoC Available

Wekan: a low-privilege board member escalates to board admin and takes over a private board via the `sort` collection-allow rule · Advisory · wekan/wekan · GitHub

https://github.com/wekan/wekan/security/advisories/GHSA-xm8x-c8wg-jhmf

Weakness Classification(2)

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

Data Freshness Timeline

(refreshed 12× in last 7d / 21× 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.

  1. 2026-08-30 03:11 UTCEG score recompute
  2. 2026-08-30 01:22 UTCEPSS rescore
  3. 2026-08-29 01:47 UTCEG score recompute
  4. 2026-08-28 21:42 UTCEPSS rescore
  5. 2026-08-27 18:44 UTCEG score recompute
  6. 2026-08-26 16:14 UTCEG score recompute
  7. 2026-08-26 14:47 UTCEPSS rescore
  8. 2026-08-26 03:05 UTCEG score recompute
  9. 2026-08-25 14:21 UTCEG score recompute
  10. 2026-08-25 14:15 UTCEG score recompute
  11. 2026-08-25 13:49 UTCEPSS rescore
  12. 2026-08-24 14:40 UTCEG score recompute
  13. 2026-08-23 00:32 UTCEG score recompute
  14. 2026-08-23 00:19 UTCEPSS rescore
  15. 2026-08-22 11:51 UTCEG score recompute
  16. 2026-08-21 23:49 UTCEPSS rescore
  17. 2026-08-21 10:26 UTCEG score recompute
  18. 2026-08-20 22:56 UTCEPSS rescore
  19. 2026-08-19 20:21 UTCEG score recompute
  20. 2026-08-19 19:33 UTCEG score recompute
  21. 2026-08-19 19:32 UTCMITRE cvelistV5first tracked

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Frequently asked(5)

What is CVE-2026-68561?
CVE-2026-68561 is a high vulnerability published on August 19, 2026. Wekan is open source kanban built with Meteor. Prior to 9.89, the second Boards.allow({ update }) rule in server/permissions/boards.js called canUpdateBoardSort in server/lib/utils.js, which authorized any board member whenever fieldNames included sort. Because Meteor combines allow rules with OR…
When was CVE-2026-68561 disclosed?
CVE-2026-68561 was first published in the National Vulnerability Database on August 19, 2026, with the most recent update on August 25, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-68561 actively exploited?
CVE-2026-68561 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 0% probability of exploitation in the next 30 days, which ranks it in the top 69.7% of all scored CVEs.
What is the CVSS score of CVE-2026-68561?
CVE-2026-68561 has a CVSS v3 base score of 8.8 (NVD).
How do I remediate CVE-2026-68561?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-68561, 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

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