Medium severity · published Oct 27, 2026
CVE-2026-106078
A vulnerability allowing an unauthenticated attacker to bypass REST API authentication with a forged federation token and receive responses from REST API endpoints that do not…
New
6.9
CVSS
–
EPSS
No
On KEV
Description
A vulnerability allowing an unauthenticated attacker to bypass REST API authentication with a forged federation token and receive responses from REST API endpoints that do not call the Veeam Backup for Microsoft 365 backup service.
Exploitation
Is it being used?
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
BF
Backup for Microsoft 365 · Veeam
8.0 through 8.6.0.1102 · source: vendor
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-106078
CVE.org
https://www.cve.org/CVERecord?id=CVE-2026-106078
www.veeam.com
https://www.veeam.com/kb4957
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