CVE-2026-73235

MEDIUMPre-NVD 6.16.1—
EchelonGraph scoreMEDIUM confidence

This medium-severity CVE scores 6.1 under a secondary CVSS source (NVD's own analysis pending). EPSS exploit probability: 0.1%, top 98% 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
6.1EG
EchelonGraph verdictMonitorLow exploitation likelihood right now — keep watching.
  • Lower severity and no public exploit yet
CISA-KEV: Not listedEPSS PROB: 0%CVSS: 6.1Exploit: None knownExposed: 0

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

FreeCAD is a free and open-source multiplatform 3D parametric modeler. Prior to 1.1.2, the Xerces SAX2 XMLReader constructed in src/Base/Reader.cpp by Base::XMLReader::XMLReader() parses attacker-controlled Document.xml from a crafted .FCStd archive without disabling default external entity resolution or external DTD loading. When Document::restore() opens the document, external entities can read local files through the file URI scheme or initiate server-side requests through the http URI scheme, and resolved content can flow through the characters() callback. This issue is fixed in version 1.1.2.

CVSS v3
6.1
EG Score
6.1(medium)
EG Risk
27(Track)
EG Risk 27/100SSVC: 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
Severity61% × 45%
Exploitation0% × 40%
Automatability0% × 15%
Action: Routine — remediate on your standard cadence.
EPSS PROB
0%
EPSS %ILE
2%
KEV
Not listed

Published

August 11, 2026

Last Modified

September 9, 2026

Advisory Details (6)

Auto-updated Aug 11, 2026
🔬 Proof of concept available. Patch available. Sources: github_commit, github_pr, github_release, github.
github Patch Available🟡 PoC Available

XXE file read and SSRF via external entity injection in Document.xml SAX parser · Advisory · FreeCAD/FreeCAD · GitHub

https://github.com/FreeCAD/FreeCAD/security/advisories/GHSA-cp6c-87x9-xf49
github_release Patch Available

FreeCAD 1.1.2

Patch available: FreeCAD/FreeCAD 1.1.2

https://github.com/FreeCAD/FreeCAD/releases/tag/1.1.2
github_pr

[Backport releases/FreeCAD-1-1] Base: Harden FCStd Reader against XXE

Fix merged in FreeCAD/FreeCAD PR #31280 on 2026-07-12 — awaiting tagged release

https://github.com/FreeCAD/FreeCAD/pull/31280
github_pr

Base: Harden FCStd Reader against XXE

Fix merged in FreeCAD/FreeCAD PR #31271 on 2026-07-12 — awaiting tagged release

https://github.com/FreeCAD/FreeCAD/pull/31271
github_commit

commit d98eaf1f1944 (FreeCAD/FreeCAD)

Fix landed in FreeCAD/FreeCAD commit d98eaf1f1944 — awaiting tagged release

https://github.com/FreeCAD/FreeCAD/commit/d98eaf1f194400d8a8886fe6780c54f5c68ea2c3
github_commit

commit 7d1b8f5806db (FreeCAD/FreeCAD)

Fix landed in FreeCAD/FreeCAD commit 7d1b8f5806db — awaiting tagged release

https://github.com/FreeCAD/FreeCAD/commit/7d1b8f5806db578db99feb348e55a6b0eaff7c73

Affected Packages

(3 across 3 ecosystems)
Debian:12(1)
PackageVulnerable rangeFixed inDependents
freecad0.20.2+dfsg1-10 ... 1.1.3+dfsg-3 (44 versions)——
Debian:13(1)
PackageVulnerable rangeFixed inDependents
freecad1.0.0+dfsg-8, 1.0.0+dfsg-8+deb13u1, 1.0.0+dfsg-8+deb13u21.0.0+dfsg-8+deb13u3—
Debian:14(1)
PackageVulnerable rangeFixed inDependents
freecad1.0.0+dfsg-8 ... 1.1.1+dfsg-3 (16 versions)1.1.3+dfsg-1—

Weakness Classification(1)

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

Data Freshness Timeline

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

Related CVEs(same CWE)

Frequently asked(5)

What is CVE-2026-73235?
CVE-2026-73235 is a medium vulnerability published on August 11, 2026. FreeCAD is a free and open-source multiplatform 3D parametric modeler. Prior to 1.1.2, the Xerces SAX2 XMLReader constructed in src/Base/Reader.cpp by Base::XMLReader::XMLReader() parses attacker-controlled Document.xml from a crafted .FCStd archive without disabling default external entity…
When was CVE-2026-73235 disclosed?
CVE-2026-73235 was first published in the National Vulnerability Database on August 11, 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-2026-73235 actively exploited?
CVE-2026-73235 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 97.5% of all scored CVEs.
What is the CVSS score of CVE-2026-73235?
CVE-2026-73235 has a CVSS v3 base score of 6.1 (NVD).
How do I remediate CVE-2026-73235?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-73235, 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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