CVE-2026-8481

CRITICALPre-NVD 9.99.9—
EchelonGraph scoreMEDIUM confidence

Score 9.9 from GitHub Security Advisory (severity: CRITICAL) published 2026-07-17. a secondary CVSS source baseline 9.9; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, secondary
Trending — 3 sources updated this week
9.9EG
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 1%CVSS: 9.9Exploit: None knownExposed: 0

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

IBM Langflow OSS 1.0.0 through 1.10.0 contain a critical remote code execution vulnerability in the code validation API endpoint. The POST /api/v1/validate/code endpoint accepts user-supplied Python code and executes it directly using Python's built-in exec() function without sandboxing, input validation, or privilege restrictions, enabling any authenticated user to execute arbitrary system commands with the full privileges of the Langflow server process.

CVSS v3
9.9
EG Score
9.9(medium)
EG Risk
45(Track)
EG Risk 45/100SSVC: 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
Severity99% × 45%
Exploitation1% × 40%
Automatability0% × 15%
Action: Routine — remediate on your standard cadence.
EPSS PROB
1%
EPSS %ILE
54%
KEV
Not listed

Published

July 17, 2026

Last Modified

July 23, 2026

Advisory Details (1)

Auto-updated Aug 27, 2026
No patch confirmed yet.
generic

Security Bulletin: Remote Code Execution via Code Validation Endpoint

https://www.ibm.com/support/pages/node/7278923

Vendor Advisories for CVE-2026-8481(1)

These vendors published their own advisory mentioning this CVE — often with vendor-specific remediation steps + affected product lists not in NVD.

Weakness Classification(1)

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

Data Freshness Timeline

(refreshed 36× in last 7d / 213× 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 271 total refreshes for this CVE.

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

Related CVEs(same CWE)

Frequently asked(5)

What is CVE-2026-8481?
CVE-2026-8481 is a critical vulnerability published on July 17, 2026. IBM Langflow OSS 1.0.0 through 1.10.0 contain a critical remote code execution vulnerability in the code validation API endpoint. The POST /api/v1/validate/code endpoint accepts user-supplied Python code and executes it directly using Python's built-in exec() function without sandboxing, input…
When was CVE-2026-8481 disclosed?
CVE-2026-8481 was first published in the National Vulnerability Database on July 17, 2026, with the most recent update on July 23, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-8481 actively exploited?
CVE-2026-8481 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 1% probability of exploitation in the next 30 days, which ranks it in the top 46.2% of all scored CVEs.
What is the CVSS score of CVE-2026-8481?
CVE-2026-8481 has a CVSS v3 base score of 9.9 (NVD).
How do I remediate CVE-2026-8481?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-8481, 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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