CVE-2026-82058

MEDIUMPre-NVD 6.56.5—
EchelonGraph scoreHIGH confidence

Score 6.5 from GitHub Security Advisory (severity: HIGH) published 2026-09-08. a secondary CVSS source baseline 6.5; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, secondary
Trending — 3 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%CVSS: 6.5Exploit: None knownExposed: 0

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

A flaw in MongoDB's JSON Schema validation error generation code allows an authenticated user with readWrite privileges to crash the mongod server. When a BSON document containing an array with a malformed numeric field name fails a $jsonSchema items type constraint, the error generation path performs unsafe numeric conversion on the user-controlled field name without proper exception handling, resulting in an uncaught exception that terminates the server process. This is possible because incoming wire protocol BSON validation does not enforce that array element field names are valid, in-range numeric indices.

CVSS v3
6.5
EG Score
6.5(high)
EG Risk
29(Track)
EG Risk 29/100SSVC: 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
Severity65% × 45%
Exploitation0% × 40%
Automatability0% × 15%
Action: Routine — remediate on your standard cadence.
EPSS PROB
0%
EPSS %ILE
21%
KEV
Not listed

Published

September 8, 2026

Last Modified

September 16, 2026

Advisory Details (1)

Auto-updated Sep 8, 2026
No patch confirmed yet.
generic

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https://jira.mongodb.org/browse/SERVER-130926

Vendor Advisories for CVE-2026-82058(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 17× in last 7d / 31× 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. 2026-09-18 19:28 UTCEPSS rescore
  2. 2026-09-18 19:15 UTCGHSA enrichment
  3. 2026-09-17 20:19 UTCEG score recompute
  4. 2026-09-17 20:19 UTCGHSA enrichment
  5. 2026-09-16 21:09 UTCEG score recompute
  6. 2026-09-16 21:09 UTCGHSA enrichment
  7. 2026-09-16 14:08 UTCEPSS rescore
  8. 2026-09-16 11:03 UTCEG score recompute
  9. 2026-09-16 11:03 UTCGHSA enrichment
  10. 2026-09-16 05:15 UTCEPSS rescore
  11. 2026-09-15 12:09 UTCEG score recompute
  12. 2026-09-15 12:09 UTCGHSA enrichment
  13. 2026-09-15 03:12 UTCEPSS rescore
  14. 2026-09-15 03:12 UTCEPSS rescore
  15. 2026-09-14 13:15 UTCEG score recompute
  16. 2026-09-14 13:15 UTCGHSA enrichment
  17. 2026-09-13 14:21 UTCGHSA enrichment
  18. 2026-09-12 15:27 UTCEG score recompute
  19. 2026-09-12 15:27 UTCGHSA enrichment
  20. 2026-09-11 16:32 UTCEG score recompute
  21. 2026-09-11 16:32 UTCGHSA enrichment
  22. 2026-09-11 14:53 UTCEPSS rescore
  23. 2026-09-11 14:53 UTCEPSS rescore
  24. 2026-09-10 17:37 UTCEG score recompute
  25. 2026-09-10 17:37 UTCGHSA enrichment
Show 6 more
  1. 2026-09-09 18:43 UTCGHSA enrichment
  2. 2026-09-08 19:49 UTCEG score recompute
  3. 2026-09-08 19:49 UTCGHSA enrichment
  4. 2026-09-08 18:14 UTCEG score recompute
  5. 2026-09-08 16:29 UTCEG score recompute
  6. 2026-09-08 16:25 UTCMITRE cvelistV5first tracked

Frequently asked(5)

What is CVE-2026-82058?
CVE-2026-82058 is a medium vulnerability published on September 8, 2026. A flaw in MongoDB's JSON Schema validation error generation code allows an authenticated user with readWrite privileges to crash the mongod server. When a BSON document containing an array with a malformed numeric field name fails a $jsonSchema items type constraint, the error generation path…
When was CVE-2026-82058 disclosed?
CVE-2026-82058 was first published in the National Vulnerability Database on September 8, 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-2026-82058 actively exploited?
CVE-2026-82058 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 78.9% of all scored CVEs.
What is the CVSS score of CVE-2026-82058?
CVE-2026-82058 has a CVSS v3 base score of 6.5 (NVD).
How do I remediate CVE-2026-82058?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-82058, 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

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