CVE-2026-19503

MEDIUMNVD 6.56.5—
EchelonGraph scoreMEDIUM confidence

This medium-severity CVE scores 6.5 under NVD CVSS v3. EPSS exploit probability: 0.2% (9th percentile of EPSS-scored CVEs). GitHub Security Advisory enrichment pending alignment with NVD CVSS.

Triggered by: NVD CVSS baseline
Sources: epss, ghsa, nvd
Trending — 4 sources updated this week
6.5EG
EchelonGraph verdictMonitorLow exploitation likelihood right now — keep watching.
  • Lower severity and no public exploit yet
CISA-KEV: Not listedEPSS PROB: 0.2%CVSS: 6.5Exploit: None knownExposed services: Not assessed

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

MongoDB Schema Manager and MongoDB Atlas SQL ODBC Driver do not validate the scheme of the authorization and token endpoints returned by an OIDC issuer's discovery document. A user induced to connect to an uncontrolled MongoDB deployment using MONGODB-OIDC authentication may have an uncontrolled URI dispatched to their operating system's default protocol handler, potentially exposing credentials or, under certain conditions, resulting in code execution in the user's context.

CVSS v3
6.5
EG Score
6.5MEDIUMmedium 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
Severity65% × 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
0.2%
EPSS %ILE
9th
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 12, 2026

Last Modified

September 29, 2026

Advisory Details (1)

Auto-updated Aug 12, 2026
No patch confirmed yet.
generic

SQL Interface Changelog - SQL Interface - MongoDB Docs

https://www.mongodb.com/docs/sql-interface/changelog

Vendor Advisories for CVE-2026-19503(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 15× in last 7d / 63× 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 127 total refreshes for this CVE.

  1. 2026-10-04 23:21 UTCEPSS rescore
  2. 2026-10-04 22:27 UTCGHSA enrichment
  3. 2026-10-03 19:55 UTCEG score recompute
  4. 2026-10-03 19:55 UTCGHSA enrichment
  5. 2026-10-02 08:18 UTCEG score recompute
  6. 2026-10-02 08:18 UTCGHSA enrichment
  7. 2026-10-01 19:49 UTCEPSS rescore
  8. 2026-10-01 01:41 UTCEG score recompute
  9. 2026-10-01 01:40 UTCGHSA enrichment
  10. 2026-09-30 15:03 UTCEPSS rescore
  11. 2026-09-29 23:38 UTCEG score recompute▲ 1.70
  12. 2026-09-29 23:38 UTCGHSA enrichment
  13. 2026-09-29 21:03 UTCNVD updateCVSS v3 → 6.5
  14. 2026-09-29 15:20 UTCEPSS rescore
  15. 2026-09-28 13:51 UTCEPSS rescore
  16. 2026-09-28 12:27 UTCEG score recompute
  17. 2026-09-28 12:27 UTCGHSA enrichment
  18. 2026-09-27 13:47 UTCEPSS rescore
  19. 2026-09-27 09:52 UTCEG score recompute
  20. 2026-09-27 09:52 UTCGHSA enrichment
  21. 2026-09-26 15:58 UTCEPSS rescore
  22. 2026-09-25 03:39 UTCEG score recompute
  23. 2026-09-25 03:39 UTCGHSA enrichment
  24. 2026-09-23 13:14 UTCEG score recompute
  25. 2026-09-23 13:14 UTCGHSA enrichment
Show 75 more
  1. 2026-09-22 11:32 UTCEG score recompute
  2. 2026-09-22 11:31 UTCGHSA enrichment
  3. 2026-09-21 09:48 UTCEG score recompute
  4. 2026-09-21 09:48 UTCGHSA enrichment
  5. 2026-09-20 05:24 UTCEG score recompute
  6. 2026-09-20 05:24 UTCGHSA enrichment
  7. 2026-09-19 03:42 UTCEG score recompute
  8. 2026-09-19 03:42 UTCGHSA enrichment
  9. 2026-09-18 19:27 UTCEPSS rescore
  10. 2026-09-18 01:59 UTCEG score recompute
  11. 2026-09-18 01:59 UTCGHSA enrichment
  12. 2026-09-17 00:16 UTCEG score recompute
  13. 2026-09-17 00:16 UTCGHSA enrichment
  14. 2026-09-16 14:07 UTCEPSS rescore
  15. 2026-09-16 05:14 UTCEPSS rescore
  16. 2026-09-15 15:43 UTCEG score recompute
  17. 2026-09-15 15:42 UTCGHSA enrichment
  18. 2026-09-14 13:54 UTCEG score recompute
  19. 2026-09-14 13:54 UTCGHSA enrichment
  20. 2026-09-13 16:46 UTCEPSS rescore
  21. 2026-09-13 12:02 UTCEG score recompute
  22. 2026-09-13 12:02 UTCGHSA enrichment
  23. 2026-09-12 15:00 UTCEPSS rescore
  24. 2026-09-12 10:19 UTCEG score recompute
  25. 2026-09-12 10:19 UTCGHSA enrichment
  26. 2026-09-11 14:52 UTCEPSS rescore
  27. 2026-09-11 09:36 UTCEPSS rescore
  28. 2026-09-11 08:37 UTCEG score recompute
  29. 2026-09-11 08:36 UTCGHSA enrichment
  30. 2026-09-10 09:34 UTCEPSS rescore
  31. 2026-09-10 06:53 UTCGHSA enrichment
  32. 2026-09-09 05:11 UTCGHSA enrichment
  33. 2026-09-07 16:40 UTCEG score recompute
  34. 2026-09-07 16:40 UTCGHSA enrichment
  35. 2026-09-07 16:01 UTCEPSS rescore
  36. 2026-09-06 13:47 UTCEPSS rescore
  37. 2026-09-06 12:20 UTCEG score recompute
  38. 2026-09-06 12:19 UTCGHSA enrichment
  39. 2026-09-05 10:28 UTCEG score recompute
  40. 2026-09-05 10:27 UTCGHSA enrichment
  41. 2026-09-04 08:44 UTCEG score recompute
  42. 2026-09-04 08:44 UTCGHSA enrichment
  43. 2026-09-04 05:06 UTCEPSS rescore
  44. 2026-09-03 06:58 UTCEG score recompute
  45. 2026-09-03 06:58 UTCGHSA enrichment
  46. 2026-09-02 14:11 UTCEPSS rescore
  47. 2026-09-02 05:14 UTCEG score recompute
  48. 2026-09-02 05:14 UTCGHSA enrichment
  49. 2026-09-01 13:53 UTCEPSS rescore
  50. 2026-09-01 04:39 UTCEPSS rescore
  51. 2026-09-01 02:52 UTCGHSA enrichment
  52. 2026-08-31 01:10 UTCEG score recompute
  53. 2026-08-31 01:10 UTCGHSA enrichment
  54. 2026-08-30 19:17 UTCEPSS rescore
  55. 2026-08-30 01:22 UTCEPSS rescore
  56. 2026-08-29 23:27 UTCGHSA enrichment
  57. 2026-08-28 21:45 UTCEG score recompute
  58. 2026-08-28 21:45 UTCGHSA enrichment
  59. 2026-08-28 21:41 UTCEPSS rescore
  60. 2026-08-28 13:42 UTCGHSA enrichment
  61. 2026-08-27 11:54 UTCEG score recompute
  62. 2026-08-27 11:54 UTCGHSA enrichment
  63. 2026-08-26 14:46 UTCEPSS rescore
  64. 2026-08-26 10:11 UTCEG score recompute
  65. 2026-08-26 10:11 UTCGHSA enrichment
  66. 2026-08-25 13:48 UTCEPSS rescore
  67. 2026-08-25 08:26 UTCEG score recompute
  68. 2026-08-25 08:26 UTCGHSA enrichment
  69. 2026-08-24 06:33 UTCGHSA enrichment
  70. 2026-08-23 04:50 UTCEG score recompute
  71. 2026-08-23 04:50 UTCGHSA enrichment
  72. 2026-08-23 00:19 UTCEPSS rescore
  73. 2026-08-22 03:07 UTCEG score recompute
  74. 2026-08-22 03:07 UTCGHSA enrichment
  75. 2026-08-21 23:49 UTCEPSS rescore

Related CVEs(same CWE)

Frequently asked(5)

What is CVE-2026-19503?
CVE-2026-19503 is a medium vulnerability published on August 12, 2026. MongoDB Schema Manager and MongoDB Atlas SQL ODBC Driver do not validate the scheme of the authorization and token endpoints returned by an OIDC issuer's discovery document. A user induced to connect to an uncontrolled MongoDB deployment using MONGODB-OIDC authentication may have an uncontrolled…
When was CVE-2026-19503 disclosed?
CVE-2026-19503 was first published on August 12, 2026, with the most recent update on September 29, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-19503 actively exploited?
CVE-2026-19503 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 0.2% probability of exploitation in the next 30 days (9th percentile of EPSS-scored CVEs).
What is the CVSS score of CVE-2026-19503?
CVE-2026-19503 has a CVSS v3 base score of 6.5 (NVD).
How do I remediate CVE-2026-19503?
No fix for CVE-2026-19503 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-2026-19503 are linked in the Vendor Advisories panel on this page.

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