{"id":"CVE-2026-93317","title":"An unauthenticated attacker controlling a registry or OCI-layout blob source could provide blob contents that did not match the claimed digest","summary":"An unauthenticated attacker controlling a registry or OCI-layout blob source could provide blob contents that did not match the claimed digest. The resulting snapshot could be cached under that digest and reused by a later victim build, …","severity":"medium","cvss":5.9,"cvssVector":"CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:A/VC:N/VI:H/VA:N/SC:N/SI:L/SA:N","cwe":["CWE-354"],"vendor":"moby","product":"github.com/moby/buildkit","affected":["github.com/moby/buildkit >= 0.28.0 < 0.33.1"],"published":"2026-10-05","updated":"2026-10-06","sourceUpdated":"2026-10-06T15:08:38.397","source":"NVD","sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2026-93317","references":[{"url":"https://github.com/moby/buildkit/releases/tag/v0.33.1","label":"security@docker.com"},{"url":"https://github.com/moby/buildkit/security/advisories/GHSA-p3rc-w3hc-pqvv","label":"security@docker.com"},{"url":"https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-93317.json"},{"url":"https://access.redhat.com/security/cve/CVE-2026-93317"},{"url":"https://bugzilla.redhat.com/show_bug.cgi?id=2546011"},{"url":"https://www.cve.org/CVERecord?id=CVE-2026-93317"},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-93317"}],"tags":["nvd","cve.org","csaf","vex","red-hat"],"ssvc":{"exploitation":"none","automatable":"no","technicalImpact":"partial","timestamp":"2026-10-05T19:05:59.752463Z"},"cvssSource":"cna","scores":{"cna":5.9,"vendor":6.5},"ingestedAt":"2026-10-05T18:29:11.202Z","epss":0.00162,"epssPercentile":0.05327,"slug":"CVE-2026-93317","body":"## Overview\n\nAn unauthenticated attacker controlling a registry or OCI-layout blob source could provide blob contents that did not match the claimed digest. The resulting snapshot could be cached under that digest and reused by a later victim build, compromising build-input integrity.\n\n## Remediation\n\nRefer to the linked advisories for vendor-supplied fixes and affected version ranges.\n\n## Vendor advisories\n\n- **Red Hat VEX** · Moderate · affected: Red Hat Hardened Images · no fix planned: Red Hat Hardened Images · updated 2026-10-07 · [vex](https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-93317.json)","depth":"sunlit","depthScore":32,"depthScoreParts":{"impact":32.5,"likelihood":0,"exploitation":0,"ransomware":0},"changes":[]}