{"id":"CVE-2026-93323","summary":"Oversized Dockerfile or .dockerignore can exhaust buildkitd memory","details":"The Dockerfile frontend loaded the Dockerfile and .dockerignore files of a build context into memory without a size limit. A build context containing an oversized file could make buildkitd allocate memory proportional to that file, potentially exhausting memory and terminating the daemon, which interrupts other builds on the same instance. Fixed by rejecting such files above 16 MiB.","aliases":["GHSA-mgqf-486f-49vp"],"modified":"2026-10-06T02:45:17.308942379Z","published":"2026-10-05T17:57:12.252Z","database_specific":{"cna_assigner":"Docker","cwe_ids":["CWE-789"],"osv_generated_from":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/93xxx/CVE-2026-93323.json"},"references":[{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/93xxx/CVE-2026-93323.json"},{"type":"FIX","url":"https://github.com/moby/buildkit/releases/tag/v0.33.1"},{"type":"ADVISORY","url":"https://github.com/moby/buildkit/security/advisories/GHSA-mgqf-486f-49vp"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-93323"}],"affected":[{"ranges":[{"type":"GIT","repo":"https://github.com/moby/buildkit","events":[{"introduced":"0"},{"last_affected":"dddd5621af04ea57823085c93a063383f71d3173"}],"database_specific":{"extracted_events":[{"introduced":"0"},{"last_affected":"0.33.0"}],"source":"AFFECTED_FIELD"}}],"versions":["v0.33.0-rc2","v0.33.0","dockerfile/1.27.0-labs","dockerfile/1.27.0","dockerfile/1.27.0-rc1-labs","dockerfile/1.27.0-rc1","v0.33.0-rc1","v0.32.0","dockerfile/1.26.0-labs","dockerfile/1.26.0","v0.32.0-rc2","dockerfile/1.26.0-rc2-labs","dockerfile/1.26.0-rc2","v0.32.0-rc1","v0.31.0","dockerfile/1.25.0-labs","dockerfile/1.25.0","v0.31.0-rc2","dockerfile/1.25.0-rc2-labs","dockerfile/1.25.0-rc2","v0.31.0-rc1","dockerfile/1.25.0-rc1-labs","dockerfile/1.25.0-rc1","v0.30.0-rc2","v0.30.0-rc1","dockerfile/1.24.0-rc1-labs","dockerfile/1.24.0-rc1","v0.29.0","dockerfile/1.23.0-labs","dockerfile/1.23.0","v0.29.0-rc1","dockerfile/1.23.0-rc1-labs","dockerfile/1.23.0-rc1","v0.28.0-rc2","dockerfile/1.22.0-rc2-labs","dockerfile/1.22.0-rc2","v0.28.0-rc1","dockerfile/1.22.0-rc1-labs","dockerfile/1.22.0-rc1","v0.27.0-rc2","v0.27.0-rc1","dockerfile/1.21.0-rc1-labs","dockerfile/1.21.0-rc1","v0.26.0-rc2","v0.26.0","dockerfile/1.20.0-labs","dockerfile/1.20.0","v0.26.0-rc1","dockerfile/1.20.0-rc1-labs","dockerfile/1.20.0-rc1","v0.25.0-rc1","dockerfile/1.19.0-rc1-labs","dockerfile/1.19.0-rc1","v0.24.0-rc2","dockerfile/1.18.0-rc2-labs","dockerfile/1.18.0-rc2","v0.24.0-rc1","dockerfile/1.18.0-rc1-labs","dockerfile/1.18.0-rc1","v0.22.0-rc1","dockerfile/1.16.0-rc1-labs","dockerfile/1.16.0-rc1","v0.23.0-rc1","dockerfile/1.17.0-rc1-labs","dockerfile/1.17.0-rc1","v0.21.0-rc1","dockerfile/1.15.0-rc1-labs","dockerfile/1.15.0-rc1","v0.20.0-rc2","dockerfile/1.14.0-rc2-labs","dockerfile/1.14.0-rc2","v0.20.0-rc1","dockerfile/1.14.0-rc1-labs","dockerfile/1.14.0-rc1","v0.19.0-rc3","v0.19.0-rc2","dockerfile/1.13.0-rc1-labs","dockerfile/1.13.0-rc1","v0.19.0-rc1","v0.18.0-rc2","v0.18.0","dockerfile/1.12.0-labs","dockerfile/1.12.0","v0.18.0-rc1","dockerfile/1.12.0-rc1-labs","dockerfile/1.12.0-rc1","v0.17.0","dockerfile/1.11.0-labs","dockerfile/1.11.0","v0.17.0-rc1","dockerfile/1.11.0-rc1-labs","dockerfile/1.11.0-rc1","v0.17.0-rc2","dockerfile/1.11.0-rc2-labs","dockerfile/1.11.0-rc2","v0.16.0-rc2","v0.16.0-rc1","dockerfile/1.10.0-rc1-labs","dockerfile/1.10.0-rc1","v0.15.0-rc2","v0.15.0","dockerfile/1.9.0-rc2-labs","dockerfile/1.9.0-rc2","dockerfile/1.9.0-labs","dockerfile/1.9.0","v0.15.0-rc1","dockerfile/1.9.0-rc1-labs","dockerfile/1.9.0-rc1","v0.13.0-beta2","v0.14.0","dockerfile/1.8.0-labs","dockerfile/1.8.0","v0.14.0-rc2","dockerfile/1.8.0-rc2-labs","dockerfile/1.8.0-rc2","v0.14.0-rc1","dockerfile/1.8.0-rc1-labs","dockerfile/1.8.0-rc1","v0.13.0-rc3","v0.13.0-rc2","dockerfile/1.7.0-rc1-labs","dockerfile/1.7.0-rc1","v0.13.0-rc1","v0.13.0-beta3","v0.13.0-beta1","v0.12.0","dockerfile/1.6.0-labs","dockerfile/1.6.0","v0.12.0-rc2","dockerfile/1.6.0-rc2-labs","dockerfile/1.6.0-rc2","v0.12.0-rc1","dockerfile/1.6.0-rc1-labs","dockerfile/1.6.0-rc1","v0.11.0-rc3","v0.11.0-rc2","dockerfile/1.5.0-rc2-labs","dockerfile/1.5.0-rc2","v0.11.0-rc1","dockerfile/1.5.0-rc1-labs","dockerfile/1.5.0-rc1","v0.10.0","dockerfile/1.4.0-labs","dockerfile/1.4.0","v0.10.0-rc2","dockerfile/1.4.0-rc2","dockerfile/1.4.0-labs-rc2","v0.10.0-rc1","dockerfile/1.4.0-rc1","dockerfile/1.4.0-labs-rc1","v0.9.0-rc2","v0.9.0","dockerfile/1.3.0-labs","dockerfile/1.3.0","v0.9.0-rc1","dockerfile/1.3.0-rc1-labs","dockerfile/1.3.0-rc1","v0.8.1","dockerfile/1.2.1-labs","dockerfile/1.2.1","dockerfile/1.2.0-labs","dockerfile/1.2.0","v0.8.0","v0.8.0-rc3","v0.8.0-rc2","v0.8.0-rc1","dockerfile/1.2.0-rc1-labs","dockerfile/1.2.0-rc1","v0.7.0","dockerfile/1.1.6-experimental","dockerfile/1.1.6","v0.7.0-rc1","dockerfile/1.1.6-rc1-experimental","dockerfile/1.1.6-rc1","v0.6.1","dockerfile/1.1.3-experimental","dockerfile/1.1.3","v0.6.0","dockerfile/1.1.2-experimental","dockerfile/1.1.2","dockerfile/1.1.1-experimental","dockerfile/1.1.1","v0.5.1","v0.5.0","dockerfile/1.1.0-experimental","dockerfile/1.1.0","v0.4.0","dockerfile/1.0.2-experimental","v0.3.3","dockerfile/1.0.1-experimental","dockerfile/1.0.1","dockerfile/1.0.0-experimental","dockerfile/1.0.0","v0.3.2","dockerfile/0.9.0-experimental","dockerfile/0.9.0","v0.3.1","v0.3.0"],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-93323.json"}}],"schema_version":"1.9.0","severity":[{"type":"CVSS_V4","score":"CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N"}]}