CVE-2026-73293

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 67% 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.

Semaphore UI is a web interface for managing DevOps tools. Prior to 2.18.19 and from 2.19.0-alpha3 until 2.19.5-beta5, ProjectMiddleware and GetProjectOrGlobalRoleBySlug allow a project manager to use POST /api/project/{id}/roles to create a custom manager role with permission bitmask 15, overriding the built-in manager permissions and granting CanUpdateProject and CanManageProjectUsers owner capabilities. This issue is fixed in versions 2.18.19 and 2.19.5-beta5.

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
33%
KEV
Not listed

Published

August 12, 2026

Last Modified

August 12, 2026

Advisory Details (5)

Auto-updated Aug 12, 2026
Patch available. Sources: github, github_commit, github_release.
github_release Patch Available

v2.19.5-beta5

Patch available: semaphoreui/semaphore v2.19.5-beta5 (pre-release)

https://github.com/semaphoreui/semaphore/releases/tag/v2.19.5-beta5
github_release Patch Available

v2.18.19

Patch available: semaphoreui/semaphore v2.18.19

https://github.com/semaphoreui/semaphore/releases/tag/v2.18.19
github_commit

commit bb2a4e1f08c8 (semaphoreui/semaphore)

Fix landed in semaphoreui/semaphore commit bb2a4e1f08c8 — awaiting tagged release

https://github.com/semaphoreui/semaphore/commit/bb2a4e1f08c8023e618f8dd6eaca73554f2c33bb
github_commit

commit 1c4bb65df114 (semaphoreui/semaphore)

Fix landed in semaphoreui/semaphore commit 1c4bb65df114 — awaiting tagged release

https://github.com/semaphoreui/semaphore/commit/1c4bb65df114962134f8829d4a03667106a01a68
github Patch Available

Manager-to-owner privilege escalation via custom-role slug collision · Advisory · semaphoreui/semaphore · GitHub

https://github.com/semaphoreui/semaphore/security/advisories/GHSA-cxvf-gvfq-36w2

Weakness Classification(1)

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

Data Freshness Timeline

(refreshed 11× in last 7d / 38× 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 01:22 UTCEPSS rescore
  2. 2026-08-29 08:37 UTCEG score recompute
  3. 2026-08-28 21:42 UTCEPSS rescore
  4. 2026-08-27 22:31 UTCEG score recompute
  5. 2026-08-27 14:25 UTCEPSS rescore
  6. 2026-08-26 23:03 UTCEG score recompute
  7. 2026-08-26 14:47 UTCEPSS rescore
  8. 2026-08-25 23:31 UTCEG score recompute
  9. 2026-08-25 13:49 UTCEPSS rescore
  10. 2026-08-25 00:01 UTCEG score recompute
  11. 2026-08-24 12:17 UTCEG score recompute
  12. 2026-08-23 01:06 UTCEG score recompute
  13. 2026-08-23 00:19 UTCEPSS rescore
  14. 2026-08-22 01:38 UTCEG score recompute
  15. 2026-08-21 23:49 UTCEPSS rescore
  16. 2026-08-21 02:00 UTCEG score recompute
  17. 2026-08-20 22:56 UTCEPSS rescore
  18. 2026-08-20 02:25 UTCEG score recompute
  19. 2026-08-19 17:04 UTCEPSS rescore
  20. 2026-08-18 15:13 UTCEG score recompute
  21. 2026-08-18 13:49 UTCEPSS rescore
  22. 2026-08-18 13:49 UTCEPSS rescore
  23. 2026-08-17 15:00 UTCEG score recompute
  24. 2026-08-17 13:47 UTCEPSS rescore
  25. 2026-08-16 15:32 UTCEG score recompute
Show 13 more
  1. 2026-08-16 14:56 UTCEPSS rescore
  2. 2026-08-16 14:56 UTCEPSS rescore
  3. 2026-08-16 03:48 UTCEG score recompute
  4. 2026-08-16 02:15 UTCEPSS rescore
  5. 2026-08-15 04:20 UTCEG score recompute
  6. 2026-08-15 01:31 UTCEPSS rescore
  7. 2026-08-14 04:49 UTCEG score recompute
  8. 2026-08-13 22:00 UTCEPSS rescore
  9. 2026-08-12 17:35 UTCEG score recompute
  10. 2026-08-12 17:07 UTCEG score recompute
  11. 2026-08-12 16:33 UTCEG score recompute
  12. 2026-08-12 16:01 UTCEG score recompute
  13. 2026-08-12 16:00 UTCMITRE cvelistV5first tracked

Frequently asked(5)

What is CVE-2026-73293?
CVE-2026-73293 is a high vulnerability published on August 12, 2026. Semaphore UI is a web interface for managing DevOps tools. Prior to 2.18.19 and from 2.19.0-alpha3 until 2.19.5-beta5, ProjectMiddleware and GetProjectOrGlobalRoleBySlug allow a project manager to use POST /api/project/{id}/roles to create a custom manager role with permission bitmask 15,…
When was CVE-2026-73293 disclosed?
CVE-2026-73293 was first published in the National Vulnerability Database on August 12, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-73293 actively exploited?
CVE-2026-73293 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 66.9% of all scored CVEs.
What is the CVSS score of CVE-2026-73293?
CVE-2026-73293 has a CVSS v3 base score of 8.8 (NVD).
How do I remediate CVE-2026-73293?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-73293, 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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