CVE-2026-1659

HIGHNVD 7.57.5—
EchelonGraph scoreMEDIUM confidence

Score 7.5 from GitHub Security Advisory (severity: HIGH) published 2026-05-14. NVD baseline CVSS 7.5; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, nvd
7.5
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS: 0%CVSS: 7.5Exploit: NoneExposed: 0

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

GitLab has remediated an issue in GitLab CE/EE affecting all versions from 9.0 before 18.9.7, 18.10 before 18.10.6, and 18.11 before 18.11.3 that could have allowed an unauthenticated user to cause denial of service by sending specially crafted requests due to insufficient input validation.

CVSS v3
7.5
EG Score
7.5(medium)
EPSS
27.5%
KEV
Not listed

Published

May 14, 2026

Last Modified

May 15, 2026

Advisory Details (2)

Auto-updated May 14, 2026
No patch confirmed yet.
generic

GitLab.org / GitLab · GitLab

https://gitlab.com/gitlab-org/gitlab/-/work_items/588201
generic

GitLab release notes | GitLab Docs

https://about.gitlab.com/releases/2026/05/13/patch-release-gitlab-18-11-3-released/

Vendor Advisories for CVE-2026-1659(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 8× in last 7d / 84× 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 149 total refreshes for this CVE.

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

Related CVEs(same CWE)

Frequently asked(5)

What is CVE-2026-1659?
CVE-2026-1659 is a high vulnerability published on May 14, 2026. GitLab has remediated an issue in GitLab CE/EE affecting all versions from 9.0 before 18.9.7, 18.10 before 18.10.6, and 18.11 before 18.11.3 that could have allowed an unauthenticated user to cause denial of service by sending specially crafted requests due to insufficient input validation.
When was CVE-2026-1659 disclosed?
CVE-2026-1659 was first published in the National Vulnerability Database on May 14, 2026, with the most recent update on May 15, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-1659 actively exploited?
CVE-2026-1659 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 27.5% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.
What is the CVSS score of CVE-2026-1659?
CVE-2026-1659 has a CVSS v3 base score of 7.5 (NVD).
How do I remediate CVE-2026-1659?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-1659, 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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