Microsoft Graph Information Disclosure Vulnerability
Priority LOW 31CWE-200Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- Low
- User interaction
- None
- Attack complexity
- Low
- Impact type
- Information disclosure
- Confidentiality · integrity · availability
- High · None · None
- Fix status
- No fix listed
Attack profile from CVSS 3.1 · CNA. Fix status from CNA. Impact type from Microsoft.
Summary
Exposure of sensitive information to an unauthorized actor in Microsoft Graph allows an authorized attacker to disclose information over a network.
Why it matters now
Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00995 62nd percentileScored 2026-11-07
Fix No fix listed No fixed version in the sources yet
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- None
- Automatable
- No
- Technical impact
- Partial
The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.
Affected products
Remediation
No fixed version listed by the sources yet.
Vendor assessments
Microsoft
Microsoft's page for this CVE →
- Impact
- Information Disclosure
- Exploited
- No
- Publicly disclosed
- No
- Exploitability
- —
Timeline
- 2026-10-02 Threatist record created from CVE-2026-49159
- 2026-10-03 Alias added: GHSA-w3q8-77x7-hxrq
References
More Microsoft Graph vulnerabilities
- TI-2026-35163 Microsoft Graph Information Disclosure Vulnerability CVSS 3.1MEDIUM 6.5
- TI-2023-26919 Test code in published microsoft-graph-core package exposes phpinfo() CVSS 3.1MEDIUM 5.4
- TI-2023-26918 Test code in published microsoft-graph package exposes phpinfo() CVSS 3.1MEDIUM 5.4
Sources
- CVE-2026-49159 · CVE Program
- CVE-2026-49159 · NVD
- FIRST EPSS
- GHSA-w3q8-77x7-hxrq · GitHub Advisory Database · CC BY 4.0
- CVE-2026-49159 · Microsoft Security Update Guide
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences