CVE-2026-67528

MEDIUMPre-NVD 4.34.3—
EchelonGraph scoreMEDIUM confidence

This medium-severity CVE scores 4.3 under a secondary CVSS source (NVD's own analysis pending). EPSS exploit probability: 0.4% (27th percentile of EPSS-scored CVEs). 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
4.3EG
EchelonGraph verdictMonitorLow exploitation likelihood right now — keep watching.
  • Lower severity and no public exploit yet
CISA-KEV: Not listedEPSS PROB: 0.4%CVSS: 4.3Exploit: None knownExposed services: Not assessed

A fix is available — apply it.

OpenProject is open-source, web-based project management software. Prior to 17.6.0, GET /api/v3/custom_options/:id resolved CustomOption records by global numeric id and allowed UserCustomField and GroupCustomField options without checking visible(current_user), so authenticated non-admin users could enumerate sequential custom option ids and read labels belonging to admin_only user or group custom fields. This issue is fixed in 17.6.0.

CVSS v3
4.3
EG Score
4.3MEDIUMmedium confidence
EG Risk
19
EG Risk 19/100CISA SSVC

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
Severity43% × 45%
Exploitation0% × 40%
Automatability0% × 15%
CISA SSVC: Track at every mission impact level.
Action: A fix is available. Apply it within your standard update timelines.
EPSS PROB
0.4%
EPSS %ILE
27th
KEV
Not listed

CISA SSVCTrack at every mission impact level.

A fix is available. Apply it within your standard update timelines.

Exploitation none (CISA Vulnrichment) · Automatable no (CISA Vulnrichment) · Technical impact partial (CISA Vulnrichment). Mission impact is CISA's Mission & Well-being decision point, and only you can judge it: high means the affected system is essential to your organisation's mission, or its compromise could cause irreversible harm to people. CISA's decision table

Published

July 30, 2026

Last Modified

July 31, 2026

Advisory Details (3)

Auto-updated Jul 30, 2026
Patch available. Sources: github, github_commit, github_release.
github_release Patch Available

OpenProject 17.6.0

Patch available: opf/openproject v17.6.0

https://github.com/opf/openproject/releases/tag/v17.6.0
github_commit

commit a13fa079bc80 (opf/openproject)

Fix landed in opf/openproject commit a13fa079bc80 — awaiting tagged release

https://github.com/opf/openproject/commit/a13fa079bc8040449570384c19f2d98f637179f1
github Patch Available

Improper Access Control on openproject through /api/v3/custom_options/:id via Path "id" leads to Sensitive Data Exposure · Advisory · opf/openproject · GitHub

https://github.com/opf/openproject/security/advisories/GHSA-wr3w-qchj-p4cm

Weakness Classification(1)

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

Data Freshness Timeline

(refreshed 9× in last 7d / 40× 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 103 total refreshes for this CVE.

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

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Frequently asked(5)

What is CVE-2026-67528?
CVE-2026-67528 is a medium vulnerability published on July 30, 2026. OpenProject is open-source, web-based project management software. Prior to 17.6.0, GET /api/v3/customoptions/:id resolved CustomOption records by global numeric id and allowed UserCustomField and GroupCustomField options without checking visible(currentuser), so authenticated non-admin users could…
When was CVE-2026-67528 disclosed?
CVE-2026-67528 was first published on July 30, 2026, with the most recent update on July 31, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-67528 actively exploited?
CVE-2026-67528 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 0.4% probability of exploitation in the next 30 days (27th percentile of EPSS-scored CVEs).
What is the CVSS score of CVE-2026-67528?
CVE-2026-67528 has a CVSS base score of 4.3 (a secondary CVSS source that NVD displays; NVD's own analysis pending).
How do I remediate CVE-2026-67528?
A fix for CVE-2026-67528 is available: update to the fixed version the vendor names in its advisory.

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