CVE-2026-13448

CRITICALNVD 9.89.8—
EchelonGraph scoreMEDIUM confidence

This critical-severity CVE scores 9.8 under NVD CVSS v3. EPSS exploit probability: 0.7%, top 50% of all CVEs by exploit prediction. GitHub Security Advisory enrichment pending alignment with NVD CVSS.

Triggered by: NVD CVSS baseline
Sources: epss, ghsa, nvd
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 1.10.1 Lanflow OSS contains an unauthenticated remote code execution vulnerability in the public flow build endpoint ( /api/v1/build_public_tmp/{flow_id}/flow ). The vulnerability stems from an incomplete denylist in the validate_public_flow_no_code_execution() function that fails to block several code-execution agent components including OpenDsStarAgent, CodeActAgentSmolagents, and CSVAgent.

CVSS v3
9.8
EG Score
9.8(medium)
EG Risk
44(Track)
EG Risk 44/100SSVC: 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%
Automatability0% × 15%
Action: Routine — remediate on your standard cadence.
EPSS PROB
1%
EPSS %ILE
50%
KEV
Not listed

Published

July 17, 2026

Last Modified

July 23, 2026

Advisory Details (1)

Auto-updated Sep 5, 2026
No patch confirmed yet.
generic

Security Bulletin: Langflow is affected by remote code execution, denial of service, path traversal, and exposed credentials due to multiple unauthenticated and insufficiently authorized API endpoints

https://www.ibm.com/support/pages/node/7279997

Vendor Advisories for CVE-2026-13448(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 15× in last 7d / 134× 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 284 total refreshes for this CVE.

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

Frequently asked(5)

What is CVE-2026-13448?
CVE-2026-13448 is a critical vulnerability published on July 17, 2026. IBM Langflow OSS 1.0.0 through 1.10.1 Lanflow OSS contains an unauthenticated remote code execution vulnerability in the public flow build endpoint ( /api/v1/buildpublictmp/{flowid}/flow ). The vulnerability stems from an incomplete denylist in the validatepublicflownocodeexecution() function that…
When was CVE-2026-13448 disclosed?
CVE-2026-13448 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-2026-13448 actively exploited?
CVE-2026-13448 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 50.2% of all scored CVEs.
What is the CVSS score of CVE-2026-13448?
CVE-2026-13448 has a CVSS v3 base score of 9.8 (NVD).
How do I remediate CVE-2026-13448?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-13448, 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.

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