CVE-2026-87701

CRITICALPre-NVD 9.69.6—
EchelonGraph scoreHIGH confidence

Score 9.6 from GitHub Security Advisory (severity: CRITICAL) published 2026-09-18. a secondary CVSS source baseline 9.6; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, secondary
Trending — 5 sources updated this week
9.6EG
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 0%CVSS: 9.6Exploit: None knownExposed: 0

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

Improper neutralization of special elements in output used by a downstream component ('injection') in Azure Cosmos DB allows an authorized attacker to elevate privileges over a network.

CVSS v3
9.6
EG Score
9.6(high)
EG Risk
43(Track)
EG Risk 43/100SSVC: 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
Severity96% × 45%
Exploitation0% × 40%
Automatability0% × 15%
Action: Routine — remediate on your standard cadence.
EPSS PROB
0%
EPSS %ILE
37%
KEV
Not listed

Published

September 17, 2026

Last Modified

September 19, 2026

Advisory Details (1)

Auto-updated Sep 17, 2026
Patch available. Sources: microsoft.
microsoft Patch Available

Security Update Guide - Microsoft Security Response Center

Security Update Guide - Microsoft Security Response Center. Patch available via Microsoft Security Update

https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-87701

Vendor Advisories for CVE-2026-87701(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.

All Vendor Advisories

(1)

Every vendor that published an advisory referencing this CVE — pulled from our cve_vendor_advisories aggregation. Click any row for the vendor's original advisory page.

Data Freshness Timeline

(refreshed 50× in last 7d / 50× 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. 2026-09-20 11:20 UTCVendor advisory
  2. 2026-09-20 11:20 UTCGHSA enrichment
  3. 2026-09-20 06:57 UTCVendor advisory
  4. 2026-09-20 06:56 UTCGHSA enrichment
  5. 2026-09-20 02:31 UTCVendor advisory
  6. 2026-09-20 02:30 UTCGHSA enrichment
  7. 2026-09-19 22:07 UTCVendor advisory
  8. 2026-09-19 22:06 UTCGHSA enrichment
  9. 2026-09-19 17:42 UTCEG score recompute
  10. 2026-09-19 17:42 UTCVendor advisory
  11. 2026-09-19 17:42 UTCGHSA enrichment
  12. 2026-09-19 13:18 UTCVendor advisory
  13. 2026-09-19 13:18 UTCGHSA enrichment
  14. 2026-09-19 08:54 UTCVendor advisory
  15. 2026-09-19 08:54 UTCGHSA enrichment
  16. 2026-09-19 04:31 UTCEG score recompute
  17. 2026-09-19 04:31 UTCVendor advisory
  18. 2026-09-19 04:31 UTCGHSA enrichment
  19. 2026-09-19 04:01 UTCVendor advisory
  20. 2026-09-19 04:01 UTCGHSA enrichment
  21. 2026-09-19 01:10 UTCVendor advisory
  22. 2026-09-19 01:09 UTCGHSA enrichment
  23. 2026-09-18 20:46 UTCEG score recompute
  24. 2026-09-18 20:46 UTCVendor advisory
  25. 2026-09-18 20:45 UTCGHSA enrichment
Show 25 more
  1. 2026-09-18 19:47 UTCEG score recompute
  2. 2026-09-18 19:47 UTCVendor advisory
  3. 2026-09-18 19:47 UTCGHSA enrichment
  4. 2026-09-18 19:28 UTCEPSS rescore
  5. 2026-09-18 15:23 UTCEG score recompute
  6. 2026-09-18 15:23 UTCVendor advisory
  7. 2026-09-18 15:23 UTCGHSA enrichment
  8. 2026-09-18 14:35 UTCEG score recompute
  9. 2026-09-18 14:35 UTCVendor advisory
  10. 2026-09-18 14:35 UTCGHSA enrichment
  11. 2026-09-18 13:50 UTCEG score recompute
  12. 2026-09-18 13:50 UTCVendor advisory
  13. 2026-09-18 13:50 UTCGHSA enrichment
  14. 2026-09-18 12:37 UTCVendor advisory
  15. 2026-09-18 12:37 UTCGHSA enrichment
  16. 2026-09-18 08:13 UTCVendor advisory
  17. 2026-09-18 08:13 UTCGHSA enrichment
  18. 2026-09-18 03:49 UTCEG score recompute
  19. 2026-09-18 03:49 UTCVendor advisory
  20. 2026-09-18 03:49 UTCGHSA enrichment
  21. 2026-09-17 23:25 UTCEG score recompute
  22. 2026-09-17 23:25 UTCVendor advisory
  23. 2026-09-17 23:05 UTCEG score recompute
  24. 2026-09-17 23:05 UTCVendor advisory
  25. 2026-09-17 23:04 UTCMITRE cvelistV5first tracked

Related CVEs(same CWE)

Frequently asked(5)

What is CVE-2026-87701?
CVE-2026-87701 is a critical vulnerability published on September 17, 2026. Improper neutralization of special elements in output used by a downstream component ('injection') in Azure Cosmos DB allows an authorized attacker to elevate privileges over a network.
When was CVE-2026-87701 disclosed?
CVE-2026-87701 was first published in the National Vulnerability Database on September 17, 2026, with the most recent update on September 19, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-87701 actively exploited?
CVE-2026-87701 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 62.6% of all scored CVEs.
What is the CVSS score of CVE-2026-87701?
CVE-2026-87701 has a CVSS v3 base score of 9.6 (NVD).
How do I remediate CVE-2026-87701?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-87701, 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-2026-87701

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