High severity · published Jul 21, 2026
CVE-2026-15793
Git source checkout from a bundle file could lead to command injection
7.5
CVSS
0.2%
EPSS
No
On KEV
Description
BuildKit custom frontends or clients using the raw low-level API can set git.checkoutbundle=true when checking out Git sources. If the Git source is malicious, this could lead to a crafted command invocation on the host.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N
Attack vector
Network
Complexity
Low
Privileges
None
User interaction
None
Confidentiality
None
Integrity
High
Availability
None
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.2% · higher than 10% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
BU
BuildKit · moby
0.30.0 through 0.31.1 · source: vendor, NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-15793
CVE.org
https://www.cve.org/CVERecord?id=CVE-2026-15793
Vendor Advisory
https://github.com/moby/buildkit/security/advisories/GHSA-hw3h-2gp9-cxpv
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