CVEvulnerability

CVE-2026-15788

5.6 MEDIUM Published 2026-07-20 Modified 2026-10-24 Official page ↗
Status
Analyzed
Published
2026-07-20
Last modified
2026-10-24
Assigner
[email protected]
CVSS 4.0 ([email protected])
5.6 MEDIUM — CVSS:4.0/AV:L/AC:L/AT:P/PR:N/UI:A/VC:H/VI:N/VA:N/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
CVSS 3.1 ([email protected])
7.5 HIGH — CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
Weaknesses
CWE-59

Description

BuildKit's cache mount source= selector on Windows Container on Windows (WCOW) workers does not detect NTFS directory junctions placed inside the cache root. A build authored by an untrusted user on a WCOW-configured BuildKit daemon can read arbitrary host files reachable to the BuildKit daemon process.

Affected configurations

• mobyproject buildkit (< 0.31.2)

Related

Weakness · CWE (1)

  • CWE-59 Improper Link Resolution Before File Access weakness

References