CVE-2026-1815

MEDIUMNVD 5.75.7—
EchelonGraph scoreMEDIUM confidence

Score 5.7 from GitHub Security Advisory published 2026-05-21. NVD baseline CVSS 5.7; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, nvd
5.7
EchelonGraph verdictMonitorLow exploitation likelihood right now — keep watching.
  • Lower severity and no public exploit yet
CISA-KEV: Not listedEPSS: 0%CVSS: 5.7Exploit: NoneExposed: 0

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

Insufficient session expiration vulnerability in Turkiye Electricity Transmission Corporation (TEİAŞ) Mobile Application allows Session Hijacking.

This issue affects Mobile Application: from 1.6.2 before 1.13.

CVSS v3
5.7
EG Score
5.7(medium)
EPSS
7.4%
KEV
Not listed

Published

May 21, 2026

Last Modified

May 21, 2026

Advisory Details (1)

Auto-updated Jun 16, 2026
No patch confirmed yet.
generic

T.C. Siber Güvenlik Başkanlığı

https://siberguvenlik.gov.tr/guvenlik-bildirimleri/detay/tr-26-0286

Vendor Advisories for CVE-2026-1815(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 7× in last 7d / 56× 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 122 total refreshes for this CVE.

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

Frequently asked(5)

What is CVE-2026-1815?
CVE-2026-1815 is a medium vulnerability published on May 21, 2026. Insufficient session expiration vulnerability in Turkiye Electricity Transmission Corporation (TEİAŞ) Mobile Application allows Session Hijacking. This issue affects Mobile Application: from 1.6.2 before 1.13.
When was CVE-2026-1815 disclosed?
CVE-2026-1815 was first published in the National Vulnerability Database on May 21, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-1815 actively exploited?
CVE-2026-1815 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 7.4% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.
What is the CVSS score of CVE-2026-1815?
CVE-2026-1815 has a CVSS v3 base score of 5.7 (NVD).
How do I remediate CVE-2026-1815?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-1815, 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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