CVE-2026-69857
CVE-2026-69857 is a high-severity vulnerability in Microsoft Azure Cosmos Db with a CVSS 3.x base score of 8.5. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-639.
Key facts
- Severity: High (CVSS 3.x base score 8.5)
- EPSS exploit prediction: 1% (49th percentile)
- Actively exploited: Not listed in CISA KEV
- Weakness: CWE-639
- Affected product: Microsoft Azure Cosmos Db
- Published:
- Last modified:
Description
Authorization bypass through user-controlled key in Azure Cosmos DB allows an authorized attacker to perform spoofing over a network.
Frequently asked questions
- What is CVE-2026-69857?
- Authorization bypass through user-controlled key in Azure Cosmos DB allows an authorized attacker to perform spoofing over a network.
- How severe is CVE-2026-69857?
- CVE-2026-69857 has a CVSS 3.x base score of 8.5, rated high severity. It is exploitable over network with high attack complexity, requires low privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.
- Is CVE-2026-69857 being actively exploited?
- It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (49th percentile), an estimate of the probability of exploitation in the next 30 days.
- What products are affected by CVE-2026-69857?
- CVE-2026-69857 affects Microsoft Azure Cosmos Db. See the affected-products list for the exact vulnerable versions.
- How do I fix CVE-2026-69857?
- Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
- When was CVE-2026-69857 published?
- CVE-2026-69857 was published on 2026-09-03 and last updated on 2026-09-09.
References
Affected products (1)
- cpe:2.3:a:microsoft:azure_cosmos_db:-:*:*:*:*:*:*:*
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