[NEW] [high] Microsoft GitHub Enterprise Server: Multiple vulnerabilities
A remote, authenticated attacker can exploit multiple vulnerabilities in Microsoft GitHub Enterprise Server to carry out a Denial of Service attack, manipulate data, execute code, and disclose information.
CSIRTS triage
- What
- Multiple vulnerabilities can be exploited to carry out Denial of Service attacks, manipulate data, execute code, and disclose information.
- Who is affected
- Remote, authenticated users of Microsoft GitHub Enterprise Server are affected.
- Urgency
- Remediation is critical due to the high severity of the vulnerabilities and potential for exploitation.
- Action
- Apply the latest security updates for GitHub Enterprise Server.
AI-assisted analysis generated from the source advisory — verify against the original.
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Details
Original advisory: https://wid.cert-bund.de/portal/wid/securityadvisory?name=WID-SEC-2026-2418
Exploitation outlook
EPSS (FIRST.org) estimates each CVE’s probability of exploitation in the next 30 days — here is the CSIRTS.com read on those numbers.
- Low exploitation riskCVE-2026-150070.37% 30-day exploitation probability — currently an unlikely target, but scores change as exploit code circulates. Riskier than 29% of all scored CVEs.
- Low exploitation riskCVE-2026-153430.45% 30-day exploitation probability — currently an unlikely target, but scores change as exploit code circulates. Riskier than 37% of all scored CVEs.
- Low exploitation riskCVE-2026-157830.27% 30-day exploitation probability — currently an unlikely target, but scores change as exploit code circulates. Riskier than 20% of all scored CVEs.
Referenced CVEs
| CVE | CSIRTS overview | External |
|---|---|---|
| CVE-2026-15007 | coverage & exploitation status | NVD · CVE.org |
| CVE-2026-15343 | coverage & exploitation status | NVD · CVE.org |
| CVE-2026-15783 | coverage & exploitation status | NVD · CVE.org |
Same CVEs, other sources
How other CERTs, PSIRTs and databases cover the vulnerabilities in this advisory.
- unknownCVE-2026-15783: A missing authorization vulnerability was identified in GitHub Enterprise Server that allowed …nvd
- unknownCVE-2026-15343: A path traversal vulnerability was identified in GitHub Enterprise Server that allowed an atta…nvd
- unknownCVE-2026-15007: A denial of service vulnerability was identified in GitHub Enterprise Server that allowed an a…nvd
Recent advisories for Microsoft GitHub Enterprise Server
A cluster of recent advisories against the same product widens the attack surface — attackers routinely chain freshly published CVEs on one product, so review these together.
- medium[NEW] [medium] Microsoft GitHub Enterprise Server: Multiple vulnerabilitiescert-bund · 2026-07-01
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