CVE-2026-6335

MEDIUMNVD 5.45.4—
EchelonGraph scoreMEDIUM confidence

Score 5.4 from GitHub Security Advisory published 2026-05-14. NVD baseline CVSS 5.4; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, nvd
5.4
EchelonGraph verdictMonitorLow exploitation likelihood right now — keep watching.
  • Lower severity and no public exploit yet
CISA-KEV: Not listedEPSS: 0%CVSS: 5.4Exploit: 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 18.11 before 18.11.3 that under certain conditions could have allowed an authenticated user to execute arbitrary code in another user's browser session due to improper sanitization.

CVSS v3
5.4
EG Score
5.4(medium)
EPSS
9.1%
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/596760
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-2026-6335(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 10× in last 7d / 67× 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 103 total refreshes for this CVE.

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

Related CVEs(same CWE)

Frequently asked(5)

What is CVE-2026-6335?
CVE-2026-6335 is a medium vulnerability published on May 14, 2026. GitLab has remediated an issue in GitLab CE/EE affecting all versions from 18.11 before 18.11.3 that under certain conditions could have allowed an authenticated user to execute arbitrary code in another user's browser session due to improper sanitization.
When was CVE-2026-6335 disclosed?
CVE-2026-6335 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-2026-6335 actively exploited?
CVE-2026-6335 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 9.1% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.
What is the CVSS score of CVE-2026-6335?
CVE-2026-6335 has a CVSS v3 base score of 5.4 (NVD).
How do I remediate CVE-2026-6335?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-6335, 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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