CVE-2026-34398

HIGHPre-NVD 7.87.8—
EchelonGraph scoreMEDIUM confidence

This high-severity CVE scores 7.8 under a secondary CVSS source (NVD's own analysis pending). EPSS exploit probability: 0.2% (11th 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
Elevated
7.8EG
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 0.2%CVSS: 7.8Exploit: Elevated riskExposed services: Not assessed

A fix is available — apply it.

FreeCAD is a free and open-source multiplatform 3D parametric modeler. From 0.19 until 1.1.1, src/Mod/BIM/bimcommands/BimProjectManager.py in the BIM Project Manager Load Template flow passes attacker-controlled FCStd Meta property values for wpposition, wpu, wpv, and wpaxis directly to eval(), allowing arbitrary Python code execution when a user loads a malicious BIM project template. This issue is fixed in version 1.1.1.

CVSS v3
7.8
EG Score
7.8HIGHmedium confidence
EG Risk
51
EG Risk 51/100CISA 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
Severity78% × 45%
Exploitation40% × 40%
Automatability0% × 15%
CISA SSVC: Track at low, Track* at medium and Attend at high mission impact.
Action: A fix is available. Apply it within your standard update timelines at low or medium mission impact and sooner than that at high.
EPSS PROB
0.2%
EPSS %ILE
11th
KEV
Not listed

CISA SSVCTrack at low, Track* at medium and Attend at high mission impact.

A fix is available. Apply it within your standard update timelines at low or medium mission impact and sooner than that at high.

Exploitation public PoC (CISA Vulnrichment) · Automatable no (CISA Vulnrichment) · Technical impact total (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

August 17, 2026

Last Modified

September 9, 2026

Advisory Details (5)

Auto-updated Aug 17, 2026
🔬 Proof of concept available. Patch available. Sources: github, github_pr, github_commit, github_release.
github_release Patch Available

FreeCAD 1.1.1

Patch available: FreeCAD/FreeCAD 1.1.1

https://github.com/FreeCAD/FreeCAD/releases/tag/1.1.1
github_commit

commit 9ed351cc4700 (FreeCAD/FreeCAD)

Fix landed in FreeCAD/FreeCAD commit 9ed351cc4700 — awaiting tagged release

https://github.com/FreeCAD/FreeCAD/commit/9ed351cc4700db0a94c46f020c34c58bbf1bdaba
github_commit

commit 871ee19b7622 (FreeCAD/FreeCAD)

Fix landed in FreeCAD/FreeCAD commit 871ee19b7622 — awaiting tagged release

https://github.com/FreeCAD/FreeCAD/commit/871ee19b76224910332bbfbd39eebbede967998b
github_pr

BIM: Fix possible code injection attack in FCStd file

Fix merged in FreeCAD/FreeCAD PR #28610 on 2026-03-27 — awaiting tagged release

https://github.com/FreeCAD/FreeCAD/pull/28610
githubMentions a patch (unverified)🟡 PoC Available

Arbitrary Code Execution via eval() on untrusted .FCStd metadata in BIM Project Manager · Advisory · FreeCAD/FreeCAD · GitHub

https://github.com/FreeCAD/FreeCAD/security/advisories/GHSA-8rfj-7956-6gwf

Affected Packages

(3 across 3 ecosystems)
Debian:12(1)
PackageVulnerable rangeFix by version rangeDependents
freecad0.20.2+dfsg1-10 ... 1.1.3+dfsg-3 (44 versions)
  • every version on: no fix on record
—
Debian:13(1)
PackageVulnerable rangeFix by version rangeDependents
freecad1.0.0+dfsg-8, 1.0.0+dfsg-8+deb13u1, 1.0.0+dfsg-8+deb13u2
  • every version up to 1.0.0+dfsg-8+deb13u3: fixed in 1.0.0+dfsg-8+deb13u3
—
Debian:14(1)
PackageVulnerable rangeFix by version rangeDependents
freecad1.0.0+dfsg-8 ... 1.1.0+dfsg-2~exp1 (12 versions)
  • every version up to 1.1.1+dfsg-1: fixed in 1.1.1+dfsg-1
—

Weakness Classification(1)

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

Data Freshness Timeline

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

Related CVEs(same product + same CWE)

Frequently asked(5)

What is CVE-2026-34398?
CVE-2026-34398 is a high vulnerability published on August 17, 2026. FreeCAD is a free and open-source multiplatform 3D parametric modeler. From 0.19 until 1.1.1, src/Mod/BIM/bimcommands/BimProjectManager.py in the BIM Project Manager Load Template flow passes attacker-controlled FCStd Meta property values for wpposition, wpu, wpv, and wpaxis directly to eval(),…
When was CVE-2026-34398 disclosed?
CVE-2026-34398 was first published on August 17, 2026, with the most recent update on September 9, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-34398 actively exploited?
CVE-2026-34398 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 0.2% probability of exploitation in the next 30 days (11th percentile of EPSS-scored CVEs).
What is the CVSS score of CVE-2026-34398?
CVE-2026-34398 has a CVSS base score of 7.8 (a secondary CVSS source that NVD displays; NVD's own analysis pending).
How do I remediate CVE-2026-34398?
A fix for CVE-2026-34398 is available: update to the fixed version the vendor names in its advisory.

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