CVE-2026-18708

MEDIUMPre-NVD 6.46.4—
EchelonGraph scoreMEDIUM confidence

Score 6.4 from GitHub Security Advisory published 2026-08-11. A secondary CVSS source baseline 6.4; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, secondary
Trending — 3 sources updated this week
6.4EG
EchelonGraph verdictMonitorLow exploitation likelihood right now — keep watching.
  • Lower severity and no public exploit yet
CISA-KEV: Not listedEPSS PROB: 0.4%CVSS: 6.4Exploit: None knownExposed services: Not assessed

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

An issue in MongoDB Server's JavaScript scripting engine could allow an authenticated user with write privileges to cause code they control to be executed within the query scope of other users, through a specially crafted stored value processed during an internal maintenance cycle. This could result in corruption of query results affecting other users and denial of service targeted at their operations on the same database. Impact is limited to the scripting engine's execution sandbox, which does not provide access to database, filesystem, or network resources.

CVSS v3
6.4
EG Score
6.4MEDIUMmedium confidence
EG Risk
29
EG Risk 29/100CISA SSVC

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
Severity64% × 45%
Exploitation0% × 40%
Automatability0% × 15%
CISA SSVC: Track at every mission impact level.
Action: No fix is confirmed yet. Restrict network exposure of the affected system or apply the vendor's mitigation within your standard update timelines, and watch the vendor's advisory for the fix.
EPSS PROB
0.4%
EPSS %ILE
29th
KEV
Not listed

CISA SSVCTrack at every mission impact level.

No fix is confirmed yet. Restrict network exposure of the affected system or apply the vendor's mitigation within your standard update timelines, and watch the vendor's advisory for the fix.

Exploitation none (CISA Vulnrichment) · Automatable no (CISA Vulnrichment) · Technical impact partial (CISA Vulnrichment). Mission impact is CISA's Mission & Well-being decision point, and only you can judge it: high means the affected system is essential to your organisation's mission, or its compromise could cause irreversible harm to people. CISA's decision table

Published

August 11, 2026

Last Modified

September 16, 2026

Advisory Details (1)

Auto-updated Aug 11, 2026
No patch confirmed yet.
generic

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https://jira.mongodb.org/browse/SERVER-130167

Vendor Advisories for CVE-2026-18708(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 13× in last 7d / 70× 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 138 total refreshes for this CVE.

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

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Frequently asked(5)

What is CVE-2026-18708?
CVE-2026-18708 is a medium vulnerability published on August 11, 2026. An issue in MongoDB Server's JavaScript scripting engine could allow an authenticated user with write privileges to cause code they control to be executed within the query scope of other users, through a specially crafted stored value processed during an internal maintenance cycle. This could…
When was CVE-2026-18708 disclosed?
CVE-2026-18708 was first published on August 11, 2026, with the most recent update on September 16, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-18708 actively exploited?
CVE-2026-18708 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 0.4% probability of exploitation in the next 30 days (29th percentile of EPSS-scored CVEs).
What is the CVSS score of CVE-2026-18708?
CVE-2026-18708 has a CVSS base score of 6.4 (a secondary CVSS source that NVD displays; NVD's own analysis pending).
How do I remediate CVE-2026-18708?
No fix for CVE-2026-18708 is confirmed yet. Until one is published, restrict network exposure of the affected system or apply the vendor's mitigation — for example, keep it off the internet or limit it to trusted networks — and watch the vendor's advisory for the fix. The vendor advisories EchelonGraph has for CVE-2026-18708 are linked in the Vendor Advisories panel on this page.

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