CVE-2026-18252

HIGHNVD 8.18.1—
EchelonGraph scoreMEDIUM confidence

This high-severity CVE scores 8.1 under NVD CVSS v3. EPSS exploit probability: 0.4%, top 64% of all CVEs by exploit prediction. GitHub Security Advisory enrichment pending alignment with NVD CVSS.

Triggered by: NVD CVSS baseline
Sources: epss, ghsa, nvd
Trending — 3 sources updated this week
8.1EG
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 0%CVSS: 8.1Exploit: None knownExposed: 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 EE affecting all versions from 18.9 before 19.1.7, 19.2 before 19.2.5, and 19.3 before 19.3.1 that, under certain conditions, an authenticated user with developer-role permissions could have executed arbitrary commands in a CI context, due to the Claude agent processing configuration from a user-controlled source.

CVSS v3
8.1
EG Score
8.1(medium)
EG Risk
37(Track)
EG Risk 37/100SSVC: 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
Severity81% × 45%
Exploitation0% × 40%
Automatability0% × 15%
Action: Routine — remediate on your standard cadence.
EPSS PROB
0%
EPSS %ILE
36%
KEV
Not listed

Published

August 26, 2026

Last Modified

August 31, 2026

Advisory Details (2)

Auto-updated Aug 26, 2026
No patch confirmed yet.
generic

GitLab Patch Release: 19.3.1, 19.2.5, 19.1.7 | GitLab Docs

https://docs.gitlab.com/releases/patches/patch-release-gitlab-19-3-1-released/
generic

GitLab.org / GitLab · GitLab

https://gitlab.com/gitlab-org/gitlab/-/work_items/607342

Vendor Advisories for CVE-2026-18252(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 25× in last 7d / 93× 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.

  1. 2026-09-19 01:13 UTCEG score recompute
  2. 2026-09-19 01:13 UTCGHSA enrichment
  3. 2026-09-18 19:27 UTCEPSS rescore
  4. 2026-09-18 12:39 UTCGHSA enrichment
  5. 2026-09-18 00:04 UTCEG score recompute
  6. 2026-09-18 00:04 UTCGHSA enrichment
  7. 2026-09-17 11:13 UTCGHSA enrichment
  8. 2026-09-16 22:39 UTCEG score recompute
  9. 2026-09-16 22:39 UTCGHSA enrichment
  10. 2026-09-16 14:07 UTCEPSS rescore
  11. 2026-09-16 09:33 UTCEG score recompute
  12. 2026-09-16 09:33 UTCGHSA enrichment
  13. 2026-09-16 05:14 UTCEPSS rescore
  14. 2026-09-15 20:59 UTCGHSA enrichment
  15. 2026-09-15 08:06 UTCEG score recompute
  16. 2026-09-15 08:06 UTCGHSA enrichment
  17. 2026-09-14 19:32 UTCGHSA enrichment
  18. 2026-09-14 06:58 UTCGHSA enrichment
  19. 2026-09-13 18:25 UTCEG score recompute
  20. 2026-09-13 18:25 UTCGHSA enrichment
  21. 2026-09-13 16:46 UTCEPSS rescore
  22. 2026-09-13 05:51 UTCGHSA enrichment
  23. 2026-09-12 17:17 UTCEG score recompute
  24. 2026-09-12 17:17 UTCGHSA enrichment
  25. 2026-09-12 15:00 UTCEPSS rescore
Show 68 more
  1. 2026-09-12 04:43 UTCGHSA enrichment
  2. 2026-09-11 16:09 UTCEG score recompute
  3. 2026-09-11 16:09 UTCGHSA enrichment
  4. 2026-09-11 14:52 UTCEPSS rescore
  5. 2026-09-11 09:36 UTCEPSS rescore
  6. 2026-09-11 03:35 UTCGHSA enrichment
  7. 2026-09-10 15:01 UTCEG score recompute
  8. 2026-09-10 15:01 UTCGHSA enrichment
  9. 2026-09-10 09:34 UTCEPSS rescore
  10. 2026-09-10 02:26 UTCGHSA enrichment
  11. 2026-09-09 13:52 UTCGHSA enrichment
  12. 2026-09-09 00:51 UTCEG score recompute
  13. 2026-09-09 00:51 UTCGHSA enrichment
  14. 2026-09-08 22:00 UTCEPSS rescore
  15. 2026-09-08 03:45 UTCEG score recompute
  16. 2026-09-08 03:45 UTCGHSA enrichment
  17. 2026-09-07 16:01 UTCEPSS rescore
  18. 2026-09-07 15:11 UTCGHSA enrichment
  19. 2026-09-07 02:13 UTCEG score recompute
  20. 2026-09-07 02:13 UTCGHSA enrichment
  21. 2026-09-06 13:47 UTCEPSS rescore
  22. 2026-09-06 13:27 UTCGHSA enrichment
  23. 2026-09-06 00:53 UTCEG score recompute
  24. 2026-09-06 00:53 UTCGHSA enrichment
  25. 2026-09-05 12:15 UTCGHSA enrichment
  26. 2026-09-04 23:36 UTCEG score recompute
  27. 2026-09-04 23:35 UTCGHSA enrichment
  28. 2026-09-04 10:50 UTCEG score recompute
  29. 2026-09-04 10:50 UTCGHSA enrichment
  30. 2026-09-04 05:06 UTCEPSS rescore
  31. 2026-09-03 22:12 UTCGHSA enrichment
  32. 2026-09-03 09:08 UTCGHSA enrichment
  33. 2026-09-02 20:34 UTCEG score recompute
  34. 2026-09-02 20:34 UTCGHSA enrichment
  35. 2026-09-02 14:11 UTCEPSS rescore
  36. 2026-09-02 05:40 UTCGHSA enrichment
  37. 2026-09-01 17:07 UTCEG score recompute
  38. 2026-09-01 17:07 UTCGHSA enrichment
  39. 2026-09-01 13:53 UTCEPSS rescore
  40. 2026-09-01 04:39 UTCEPSS rescore
  41. 2026-09-01 04:20 UTCGHSA enrichment
  42. 2026-08-31 15:45 UTCEG score recompute▲ 0.80
  43. 2026-08-31 15:45 UTCGHSA enrichment
  44. 2026-08-31 15:44 UTCNVD updateCVSS v3 → 8.1
  45. 2026-08-31 07:05 UTCEG score recompute
  46. 2026-08-31 07:05 UTCGHSA enrichment
  47. 2026-08-30 19:17 UTCEPSS rescore
  48. 2026-08-30 18:30 UTCGHSA enrichment
  49. 2026-08-30 05:57 UTCEG score recompute
  50. 2026-08-30 05:57 UTCGHSA enrichment
  51. 2026-08-30 01:22 UTCEPSS rescore
  52. 2026-08-29 17:23 UTCGHSA enrichment
  53. 2026-08-29 04:30 UTCEG score recompute
  54. 2026-08-29 04:30 UTCGHSA enrichment
  55. 2026-08-28 21:41 UTCEPSS rescore
  56. 2026-08-28 15:52 UTCGHSA enrichment
  57. 2026-08-28 06:44 UTCGHSA enrichment
  58. 2026-08-27 18:07 UTCEG score recompute
  59. 2026-08-27 18:06 UTCGHSA enrichment
  60. 2026-08-27 14:25 UTCEPSS rescore
  61. 2026-08-27 04:26 UTCEG score recompute
  62. 2026-08-27 04:26 UTCGHSA enrichment
  63. 2026-08-27 04:02 UTCEG score recompute
  64. 2026-08-27 04:02 UTCGHSA enrichment
  65. 2026-08-26 16:21 UTCEG score recompute
  66. 2026-08-26 15:50 UTCEG score recompute
  67. 2026-08-26 13:43 UTCEG score recompute
  68. 2026-08-26 13:42 UTCMITRE cvelistV5first tracked

Frequently asked(5)

What is CVE-2026-18252?
CVE-2026-18252 is a high vulnerability published on August 26, 2026. GitLab has remediated an issue in GitLab EE affecting all versions from 18.9 before 19.1.7, 19.2 before 19.2.5, and 19.3 before 19.3.1 that, under certain conditions, an authenticated user with developer-role permissions could have executed arbitrary commands in a CI context, due to the Claude…
When was CVE-2026-18252 disclosed?
CVE-2026-18252 was first published in the National Vulnerability Database on August 26, 2026, with the most recent update on August 31, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-18252 actively exploited?
CVE-2026-18252 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 64.3% of all scored CVEs.
What is the CVSS score of CVE-2026-18252?
CVE-2026-18252 has a CVSS v3 base score of 8.1 (NVD).
How do I remediate CVE-2026-18252?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-18252, 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-2026-18252

Explore →

Is Your Infrastructure Affected by CVE-2026-18252?

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

Start Free Scan →Browse All CVEs