CVE-2026-11839

CRITICALPre-NVD 9.99.9—
EchelonGraph scoreMEDIUM confidence

Score 9.9 from GitHub Security Advisory (severity: CRITICAL) published 2026-06-11. the CNA's CVSS baseline 9.9; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: cna:tr-cert, epss, ghsa
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: 0%CVSS: 9.9Exploit: None knownExposed: 0

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

Unrestricted upload of file with dangerous type vulnerability in Başarsoft Information Technologies Inc. Rotaban allows Upload a Web Shell to a Web Server.

This issue affects Rotaban: from V2026.06.002 before V2026.06.003.

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%
Exploitation0% × 40%
Automatability0% × 15%
Action: Routine — remediate on your standard cadence.
EPSS PROB
0%
EPSS %ILE
26%
KEV
Not listed

Published

June 11, 2026

Last Modified

June 17, 2026

Advisory Details (1)

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

T.C. Siber Güvenlik Başkanlığı

https://siberguvenlik.gov.tr/guvenlik-bildirimleri/detay/tr-26-0367

Vendor Advisories for CVE-2026-11839(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 12× in last 7d / 145× 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 383 total refreshes for this CVE.

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

Frequently asked(5)

What is CVE-2026-11839?
CVE-2026-11839 is a critical vulnerability published on June 11, 2026. Unrestricted upload of file with dangerous type vulnerability in Başarsoft Information Technologies Inc. Rotaban allows Upload a Web Shell to a Web Server. This issue affects Rotaban: from V2026.06.002 before V2026.06.003.
When was CVE-2026-11839 disclosed?
CVE-2026-11839 was first published in the National Vulnerability Database on June 11, 2026, with the most recent update on June 17, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-11839 actively exploited?
CVE-2026-11839 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 73.9% of all scored CVEs.
What is the CVSS score of CVE-2026-11839?
CVE-2026-11839 has a CVSS v4.0 base score of 9.9 (CNA self-assessment; NVD's own analysis pending).
How do I remediate CVE-2026-11839?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-11839, 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

Explore the affected products and dependency analysis for CVE-2026-11839

Explore →

Is Your Infrastructure Affected by CVE-2026-11839?

EchelonGraph automatically scans your cloud infrastructure and maps CVE exposure using blast radius analysis.

Start Free Scan →Browse All CVEs