CVE-2026-19478

CRITICALNVD 9.19.4▲
EchelonGraph scoreMEDIUM confidence

Score 9.4 from GitHub Security Advisory (severity: CRITICAL) published 2026-08-17. NVD baseline CVSS 9.1; sources differ by 0.3.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, nvd
Trending — 3 sources updated this weekElevated
9.4EG
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 6%CVSS: 9.1Exploit: Elevated riskExposed: 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 18.2 before 18.11.11, 19.0 before 19.0.8, 19.1 before 19.1.6, and 19.2 before 19.2.4 that under certain conditions could allow an unauthenticated user to remotely modify or delete public projects and user data via a GraphQL directive.

CVSS v3
9.1
EG Score
9.4(medium)
EG Risk
73(Track)
EG Risk 73/100SSVC: 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
Severity94% × 45%
Exploitation40% × 40%
Automatability100% × 15%
Action: Routine — remediate on your standard cadence.
EPSS PROB
6%
EPSS %ILE
93%
KEV
Not listed

Published

August 17, 2026

Last Modified

September 2, 2026

Advisory Details (2)

Auto-updated Sep 15, 2026
No patch confirmed yet.
generic

GitLab Critical Patch Release: 19.2.4, 19.1.6, 19.0.8, 18.11.11 | GitLab Docs

https://docs.gitlab.com/releases/patches/patch-release-gitlab-19-2-4-released/
generic

GitLab.org / GitLab · GitLab

https://gitlab.com/gitlab-org/gitlab/-/work_items/611377

Vendor Advisories for CVE-2026-19478(2)

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 51× in last 7d / 215× 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 239 total refreshes for this CVE.

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

Publicly available exploits

(4 references)

Working exploit code is in the public domain (3 GitHub PoCs). Defenders should treat patch urgency accordingly — public PoCs typically lead to mass-exploitation within 24-72 hours.

  • GitHub PoCEQSTLab/CVE-2026-19478
    First seen Aug 27, 2026

    GitLab Code injection

    Open source ↗
  • GitHub PoCdavkharrr/CVE-2026-19478-PoC
    First seen Aug 18, 2026

    CVE-2026-19478 PoC . Unauthenticated remote code-injection in GitLab's GraphQL layer

    Open source ↗
  • GitHub PoCdinosn/gitlab-cve-2026-19478-lab
    First seen Aug 18, 2026

    Reproducible A/B lab + safe PoC for GitLab CVE-2026-19478 / CVE-2026-19650 (GraphQL @gl_introduced)

    Open source ↗
  • Nucleihttp/cves/2026/CVE-2026-19478.yaml
    First seen Jan 1, 2026

    GitLab CE/EE - GraphQL @gl_introduced Arbitrary Method Invocation

    Open source ↗

Frequently asked(5)

What is CVE-2026-19478?
CVE-2026-19478 is a critical vulnerability published on August 17, 2026. GitLab has remediated an issue in GitLab CE/EE affecting all versions from 18.2 before 18.11.11, 19.0 before 19.0.8, 19.1 before 19.1.6, and 19.2 before 19.2.4 that under certain conditions could allow an unauthenticated user to remotely modify or delete public projects and user data via a GraphQL…
When was CVE-2026-19478 disclosed?
CVE-2026-19478 was first published in the National Vulnerability Database on August 17, 2026, with the most recent update on September 2, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-19478 actively exploited?
CVE-2026-19478 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 6% probability of exploitation in the next 30 days, which ranks it in the top 7.2% of all scored CVEs.
What is the CVSS score of CVE-2026-19478?
CVE-2026-19478 has a CVSS v3 base score of 9.1 (NVD). EchelonGraph synthesises NVD + CISA KEV + FIRST EPSS + GHSA into a combined EG score of 9.4.
How do I remediate CVE-2026-19478?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-19478, 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-2026-19478

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