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High CVSS 7.3

CVE-2026-15793

NVD analysis in progress

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.

What this means

Exposure
Exploitable remotely over the network and with an ordinary user account — but only if a user opens booby-trapped content. It also depends on circumstances the attacker does not control.
Impact
An attacker can read sensitive data, modify or destroy data and take the service offline.
Weakness
The attacker slips extra arguments into the invocation of an external program.
Likelihood
Its EPSS score stays low: nothing points to imminent exploitation, which is no reason to leave it unpatched.

What to doFold into the next patch cycle.

Read automatically from the CVSS vector, the weakness type (CWE) and the EPSS score. The technical description above remains the one published by NIST.

Published
21 July 2026
CVSS
7.3 (v4.0) CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:A/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
EPSS
0.23% probability of exploitation within 30 days · above 14% of all CVEs
Weakness
CWE-88
Sources
nvd
References

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