CVE-2026-67527

HIGHPre-NVD 7.67.6—
EchelonGraph scoreMEDIUM confidence

This high-severity CVE scores 7.6 under a secondary CVSS source (NVD's own analysis pending). EPSS exploit probability: 0.4% (35th 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
7.6EG
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 0.4%CVSS: 7.6Exploit: 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, PATCH /api/v3/work_packages/{id} accepted _links.fileLinks and allowed authenticated users with edit_work_packages but without manage_file_links to resolve Storages::FileLink records by raw id, detach or hard-delete existing FileLinks, and re-parent FileLinks from other projects to an attacker-controlled work package, exposing origin filename, origin id, and MIME type metadata. This issue is fixed in 17.6.0.

CVSS v3
7.6
EG Score
7.6HIGHmedium confidence
EG Risk
34
EG Risk 34/100CISA 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
Severity76% × 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
35th
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 (4)

Auto-updated Jul 30, 2026
Patch available. Sources: github, github_pr, 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 db480bdeb880 (opf/openproject)

Fix landed in opf/openproject commit db480bdeb880 — awaiting tagged release

https://github.com/opf/openproject/commit/db480bdeb8802e3d33e4448bb4e4b56a01de2e1f
github_pr

Move file links related code to storages module

Fix merged in opf/openproject PR #23815 on 2026-06-24 — awaiting tagged release

https://github.com/opf/openproject/pull/23815
github Patch Available

Improper Access Control on openproject through /api/v3/work_packages/<X.id> via PATCH parameter "fileLinks" · Advisory · opf/openproject · GitHub

https://github.com/opf/openproject/security/advisories/GHSA-c6rc-4288-8p4f

Weakness Classification(1)

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

Data Freshness Timeline

(refreshed 9× in last 7d / 42× 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. 2026-09-29 06:52 UTCEG score recompute
  2. 2026-09-28 13:52 UTCEPSS rescore
  3. 2026-09-27 18:59 UTCEG score recompute
  4. 2026-09-27 13:48 UTCEPSS rescore
  5. 2026-09-26 15:59 UTCEPSS rescore
  6. 2026-09-25 04:56 UTCEG score recompute
  7. 2026-09-23 21:28 UTCEG score recompute
  8. 2026-09-23 17:54 UTCEPSS rescore
  9. 2026-09-23 02:04 UTCEG score recompute
  10. 2026-09-22 15:12 UTCEG score recompute
  11. 2026-09-20 20:16 UTCEPSS rescore
  12. 2026-09-19 23:46 UTCEG score recompute
  13. 2026-09-19 00:28 UTCEG score recompute
  14. 2026-09-18 19:28 UTCEPSS rescore
  15. 2026-09-18 01:18 UTCEG score recompute
  16. 2026-09-17 01:28 UTCEG score recompute
  17. 2026-09-16 14:08 UTCEPSS rescore
  18. 2026-09-16 05:32 UTCEG score recompute
  19. 2026-09-16 05:15 UTCEPSS rescore
  20. 2026-09-15 03:13 UTCEG score recompute
  21. 2026-09-13 22:03 UTCEG score recompute
  22. 2026-09-12 23:50 UTCEG score recompute
  23. 2026-09-11 14:59 UTCEG score recompute
  24. 2026-09-11 14:53 UTCEPSS rescore
  25. 2026-09-11 09:37 UTCEPSS rescore
Show 74 more
  1. 2026-09-10 14:30 UTCEG score recompute
  2. 2026-09-09 07:11 UTCEG score recompute
  3. 2026-09-08 22:01 UTCEPSS rescore
  4. 2026-09-07 19:46 UTCEG score recompute
  5. 2026-09-07 16:01 UTCEPSS rescore
  6. 2026-09-06 16:40 UTCEG score recompute
  7. 2026-09-06 13:47 UTCEPSS rescore
  8. 2026-09-05 18:49 UTCEG score recompute
  9. 2026-09-05 15:31 UTCEPSS rescore
  10. 2026-09-05 04:50 UTCEG score recompute
  11. 2026-09-04 11:26 UTCEG score recompute
  12. 2026-09-04 05:07 UTCEPSS rescore
  13. 2026-09-02 14:12 UTCEPSS rescore
  14. 2026-09-01 22:36 UTCEG score recompute
  15. 2026-09-01 13:54 UTCEPSS rescore
  16. 2026-09-01 04:40 UTCEPSS rescore
  17. 2026-08-30 21:04 UTCEG score recompute
  18. 2026-08-30 19:17 UTCEPSS rescore
  19. 2026-08-30 10:12 UTCEG score recompute
  20. 2026-08-30 01:22 UTCEPSS rescore
  21. 2026-08-29 22:30 UTCEG score recompute
  22. 2026-08-28 21:42 UTCEPSS rescore
  23. 2026-08-28 00:58 UTCEG score recompute
  24. 2026-08-26 15:23 UTCEG score recompute
  25. 2026-08-26 14:47 UTCEPSS rescore
  26. 2026-08-25 17:32 UTCEG score recompute
  27. 2026-08-25 13:49 UTCEPSS rescore
  28. 2026-08-24 19:03 UTCEG score recompute
  29. 2026-08-23 10:26 UTCEG score recompute
  30. 2026-08-23 00:19 UTCEPSS rescore
  31. 2026-08-22 01:51 UTCEG score recompute
  32. 2026-08-21 23:49 UTCEPSS rescore
  33. 2026-08-21 04:06 UTCEG score recompute
  34. 2026-08-20 22:56 UTCEPSS rescore
  35. 2026-08-19 19:28 UTCEG score recompute
  36. 2026-08-19 17:04 UTCEPSS rescore
  37. 2026-08-18 19:34 UTCEG score recompute
  38. 2026-08-18 13:48 UTCEPSS rescore
  39. 2026-08-17 21:51 UTCEG score recompute
  40. 2026-08-17 13:47 UTCEPSS rescore
  41. 2026-08-17 00:06 UTCEG score recompute
  42. 2026-08-16 14:56 UTCEPSS rescore
  43. 2026-08-16 02:21 UTCEG score recompute
  44. 2026-08-15 04:38 UTCEG score recompute
  45. 2026-08-15 01:30 UTCEPSS rescore
  46. 2026-08-14 06:50 UTCEG score recompute
  47. 2026-08-13 22:00 UTCEPSS rescore
  48. 2026-08-12 22:14 UTCEG score recompute
  49. 2026-08-12 13:51 UTCEPSS rescore
  50. 2026-08-12 00:30 UTCEG score recompute
  51. 2026-08-11 02:47 UTCEG score recompute
  52. 2026-08-11 00:00 UTCEPSS rescore
  53. 2026-08-09 17:47 UTCEG score recompute
  54. 2026-08-09 13:47 UTCEPSS rescore
  55. 2026-08-08 20:04 UTCEG score recompute
  56. 2026-08-08 16:37 UTCEPSS rescore
  57. 2026-08-07 22:21 UTCEG score recompute
  58. 2026-08-06 02:54 UTCEG score recompute
  59. 2026-08-05 19:17 UTCEPSS rescore
  60. 2026-08-05 19:17 UTCEPSS rescore
  61. 2026-08-04 18:18 UTCEG score recompute
  62. 2026-08-04 15:10 UTCEPSS rescore
  63. 2026-08-04 10:39 UTCEPSS rescore
  64. 2026-08-03 20:28 UTCEG score recompute
  65. 2026-08-03 10:36 UTCEPSS rescore
  66. 2026-08-02 11:53 UTCEG score recompute
  67. 2026-08-02 02:27 UTCEPSS rescore
  68. 2026-08-01 14:09 UTCEG score recompute
  69. 2026-08-01 04:16 UTCEPSS rescore
  70. 2026-08-01 03:18 UTCEG score recompute
  71. 2026-07-31 16:25 UTCEG score recompute
  72. 2026-07-30 20:33 UTCEG score recompute
  73. 2026-07-30 19:32 UTCEG score recompute
  74. 2026-07-30 19:31 UTCMITRE cvelistV5first tracked

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Frequently asked(5)

What is CVE-2026-67527?
CVE-2026-67527 is a high vulnerability published on July 30, 2026. OpenProject is open-source, web-based project management software. Prior to 17.6.0, PATCH /api/v3/workpackages/{id} accepted links.fileLinks and allowed authenticated users with editworkpackages but without managefilelinks to resolve Storages::FileLink records by raw id, detach or hard-delete…
When was CVE-2026-67527 disclosed?
CVE-2026-67527 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-2026-67527 actively exploited?
CVE-2026-67527 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 0.4% probability of exploitation in the next 30 days (35th percentile of EPSS-scored CVEs).
What is the CVSS score of CVE-2026-67527?
CVE-2026-67527 has a CVSS base score of 7.6 (a secondary CVSS source that NVD displays; NVD's own analysis pending).
How do I remediate CVE-2026-67527?
A fix for CVE-2026-67527 is available: update to the fixed version the vendor names in its advisory.

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