CVE-2026-15789A custom client can produce such an upload request to the BuildKit daemon that files can escape from the BuildKit-controlled state directory.
Updated under an hour ago ()
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It affects mobyproject buildkit. Add what you run to find out whether that includes you.
No exploitation reported and no EPSS estimate yet.
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A custom client can produce such an upload request to the BuildKit daemon that files can escape from the BuildKit-controlled state directory. The client needs to have valid permissions to access the BuildKit control API to issue builds, e.g., bypass authentication, etc.
- CVSS
- 7.5 HIGH (v3.1, NVD)CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N
- Weakness (CWE)
- CWE-22
- Known exploited
- Not in CISA's KEV catalog
- EPSS (exploitation in the next 30 days)
- Not loaded for this CVE
- Assigned by
- Not given
- NVD analysis
- Analyzed
- Record last updated
- Jul 30, 2026
- First seen by InfoSec Signals
- Oct 9, 2026
Affected products
mobyproject buildkit mobyproject:buildkit | before 0.31.2 | NVD |
References
- https://github.com/moby/buildkit/security/advisories/GHSA-g2h8-426c-7976vendor-advisory
The CVE record on cve.org NVD's entry
The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.