CVE-2026-41900

HIGHNVD 8.88.8—
EchelonGraph scoreMEDIUM confidence

This high-severity CVE scores 8.8 under NVD CVSS v3. EPSS exploit probability: 0.9%, top 45% 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, nvd
Elevated
8.8
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS: 1%CVSS: 8.8Exploit: NoneExposed: 0

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

OpenLearnX is an open-source, decentralized learning and assessment platform. Prior to version 2.0.3, a remote code execution (RCE) vulnerability was identified in the OpenLearnX code execution environment, allowing sandbox escape and arbitrary command execution. This issue has been patched in version 2.0.3.

CVSS v3
8.8
EG Score
8.8(medium)
EPSS
55.9%
KEV
Not listed

Published

May 8, 2026

Last Modified

May 29, 2026

Advisory Details (3)

Auto-updated May 8, 2026
Patch available. Sources: github.
github Patch Available

Critical Remote Code Execution via Python Sandbox Escape in Code Execution Environment · Advisory · th30d4y/OpenLearnX · GitHub

https://github.com/th30d4y/OpenLearnX/security/advisories/GHSA-8h25-q488-4hxw
generic

Release Version 2.0.3 · th30d4y/OpenLearnX · GitHub

https://github.com/th30d4y/OpenLearnX/releases/tag/v2.0.3-security-fix
generic

fix(security): harden execution sandbox and add dedicated admin execu… · th30d4y/OpenLearnX@14765d7 · GitHub

https://github.com/th30d4y/OpenLearnX/commit/14765d7d1856d564747c55c5412e2f38feab079e

Affected Packages

(1 across 1 ecosystem)
npm(1)
PackageVulnerable rangeFixed inDependents
openlearnx—2.0.3—

Weakness Classification(5)

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 109 total refreshes for this CVE.

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

Publicly available exploits

(1 reference)

Working exploit code is in the public domain (1 GitHub PoC). Defenders should treat patch urgency accordingly — public PoCs typically lead to mass-exploitation within 24-72 hours.

  • GitHub PoCChristbowel/CVE-2026-41900-POC
    First seen May 6, 2026

    OpenLearnX Unauthenticated RCE

    Open source ↗

Related CVEs(same CWE)

Frequently asked(5)

What is CVE-2026-41900?
CVE-2026-41900 is a high vulnerability published on May 8, 2026. OpenLearnX is an open-source, decentralized learning and assessment platform. Prior to version 2.0.3, a remote code execution (RCE) vulnerability was identified in the OpenLearnX code execution environment, allowing sandbox escape and arbitrary command execution. This issue has been patched in…
When was CVE-2026-41900 disclosed?
CVE-2026-41900 was first published in the National Vulnerability Database on May 8, 2026, with the most recent update on May 29, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-41900 actively exploited?
CVE-2026-41900 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 55.9% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.
What is the CVSS score of CVE-2026-41900?
CVE-2026-41900 has a CVSS v3 base score of 8.8 (NVD).
How do I remediate CVE-2026-41900?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-41900, 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

See which npm, PyPI, Go, and Maven packages are affected by CVE-2026-41900

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