Improper handling of DBPointer objects during BSON serialization in MongoDB's server-side JavaScript engine can result in internal process memory contents being included in data returned to the client. This constitutes an unintended information disclosure affecting deployments that use server-side JavaScript.
CVE-2026-13066
MEDIUMPre-NVD 6.56.5Trending — 3 sources updated this week
EchelonGraph scoreLOW confidence
This medium-severity CVE scores 6.5 under a secondary CVSS source (NVD's own analysis pending). EPSS exploit-prediction score not yet available (the EPSS model rescores nightly; freshly-published CVEs typically appear within 48 hours). GitHub Security Advisory data not yet ingested — confidence will rise once GHSA publishes (typical lag: hours to days for open-source ecosystem CVEs; never for infrastructure-only CVEs).
Triggered by: NVD CVSS baseline
Sources: secondary
6.5
EchelonGraph verdictMonitorLow exploitation likelihood right now — keep watching.
- Lower severity and no public exploit yet
CISA-KEV: Not listedEPSS: 0%CVSS: 6.5Exploit: NoneExposed: 0
No vendor fix yet — apply a workaround or compensating control (WAF / firewall / segmentation) and watch for a patch.
- CVSS v3
- 6.5
- EG Score
- 6.5(low)
- EG Risk
- 34(Track)EG Risk 34/100SSVC: 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 computedSeverity65% × 45%Exploitation0% × 40%Automatability30% × 15%Action: Routine — remediate on your standard cadence. - EPSS
- 30.3%
- KEV
- Not listed
Published
July 22, 2026
Last Modified
July 23, 2026
Advisory Details (1)
Auto-updated Jul 22, 2026No patch confirmed yet.
Vendor Advisories for CVE-2026-13066(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 5× in last 7d / 5× 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.
- 2026-07-23 14:18 UTCEPSS rescore
- 2026-07-23 03:05 UTCEG score recompute
- 2026-07-22 21:01 UTCEG score recompute
- 2026-07-22 20:04 UTCEG score recompute
- 2026-07-22 20:00 UTCMITRE cvelistV5first tracked
Related CVEs(same CWE)
Same CWE
10 shownCWE-843
- CVE-2018-9471NVD 7.8EG 9.8HIGH
- CVE-2016-1000005EG 9.8CRITICAL
- CVE-2019-14537EG 9.8EPSS 93%CRITICAL
- CVE-2019-10231EG 9.8CRITICAL
- CVE-2018-4920NVD 8.8EG 9.8EPSS 94%HIGH
- CVE-2012-0507EG 9.8 KEVEPSS 100%CRITICAL
- CVE-2019-17026NVD 8.8EG 9.0 KEVEPSS 99%HIGH
- CVE-2019-11707NVD 8.8EG 9.0 KEVEPSS 98%HIGH
- CVE-2019-0752NVD 7.5EG 9.0 KEVEPSS 100%HIGH
- CVE-2018-8298NVD 7.5EG 9.0 KEVEPSS 99%HIGH
Frequently asked(5)
What is CVE-2026-13066?
CVE-2026-13066 is a medium vulnerability published on July 22, 2026. Improper handling of DBPointer objects during BSON serialization in MongoDB's server-side JavaScript engine can result in internal process memory contents being included in data returned to the client. This constitutes an unintended information disclosure affecting deployments that use server-side…
When was CVE-2026-13066 disclosed?
CVE-2026-13066 was first published in the National Vulnerability Database on July 22, 2026, with the most recent update on July 23, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-13066 actively exploited?
CVE-2026-13066 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 30.3% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.
What is the CVSS score of CVE-2026-13066?
CVE-2026-13066 has a CVSS v3 base score of 6.5 (NVD). The EG score is currently aggregating — additional source signals are being incorporated as they become available..
How do I remediate CVE-2026-13066?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-13066, 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-2026-13066
Is Your Infrastructure Affected by CVE-2026-13066?
EchelonGraph automatically scans your cloud infrastructure and maps CVE exposure using blast radius analysis.