CVE-2026-81204

CRITICALPre-NVD 9.89.8—
EchelonGraph scoreHIGH confidence

Score 9.8 from GitHub Security Advisory (severity: CRITICAL) published 2026-09-11. a secondary CVSS source baseline 9.8; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, secondary
Trending — 3 sources updated this week
9.8EG
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 1%CVSS: 9.8Exploit: 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 1.11.5 could allow a remote attacker to execute arbitrary code due to code injection during graph construction.

CVSS v3
9.8
EG Score
9.8(high)
EG Risk
59(Track)
EG Risk 59/100SSVC: 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
Severity98% × 45%
Exploitation1% × 40%
Automatability100% × 15%
Action: Routine — remediate on your standard cadence.
EPSS PROB
1%
EPSS %ILE
57%
KEV
Not listed

Published

September 10, 2026

Last Modified

September 16, 2026

Advisory Details (1)

Auto-updated Sep 23, 2026
No patch confirmed yet.
generic

Security Bulletin: Langflow is vulnerable to arbitrary code execution due to multiple incomplete code security controls and missing execution guards

https://www.ibm.com/support/pages/node/7286666

Vendor Advisories for CVE-2026-81204(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 55× in last 7d / 126× 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 126 total refreshes for this CVE.

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

Related CVEs(same CWE)

Frequently asked(5)

What is CVE-2026-81204?
CVE-2026-81204 is a critical vulnerability published on September 10, 2026. IBM Langflow OSS 1.0.0 through 1.11.5 could allow a remote attacker to execute arbitrary code due to code injection during graph construction.
When was CVE-2026-81204 disclosed?
CVE-2026-81204 was first published in the National Vulnerability Database on September 10, 2026, with the most recent update on September 16, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-81204 actively exploited?
CVE-2026-81204 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 43.3% of all scored CVEs.
What is the CVSS score of CVE-2026-81204?
CVE-2026-81204 has a CVSS v3 base score of 9.8 (NVD).
How do I remediate CVE-2026-81204?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-81204, 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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