{"id":"CVE-2026-101998","state":"PUBLISHED","title":"Fail-open response masking in Docker Sandboxes can expose proxy-managed credentials","description":"Docker Sandboxes could fail open while masking credentials in protected proxy responses. When a response-body read returned data together with an error, affected handlers could forward unmasked bytes. Code inside an authorized sandbox could use this to recover host-managed OAuth access and refresh tokens or a derived Anthropic API key intended to remain outside the sandbox.","publishedAt":"2026-10-08T18:47:28.551Z","updatedAt":"2026-10-08T19:27:49.633Z","severity":{"score":5.9,"label":"Medium","version":"4.0","vector":"CVSS:4.0/AV:A/AC:L/AT:P/PR:L/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N","source":"Docker"},"assigner":"Docker","products":["Docker Docker Sandboxes"],"affected":[{"vendor":"Docker","product":"Docker Sandboxes","defaultStatus":"unaffected","versions":[{"version":"0.21.0","status":"affected","lessThan":"0.47.0","versionType":"semver"}],"platforms":["Linux","MacOS","Windows"],"cpes":["cpe:2.3:a:docker:docker_sandboxes:*:*:*:*:*:*:*:*"]}],"references":["https://docs.docker.com/ai/sandboxes/","https://docs.docker.com/ai/sandboxes/configuration/credentials/#how-credential-injection-works"],"weaknesses":["CWE-636"],"ingestedAt":"2026-10-29T20:10:13.529Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2026/101xxx/CVE-2026-101998.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-101998","state":"PUBLISHED","datePublished":"2026-10-08T18:47:28.551Z","dateUpdated":"2026-10-08T19:27:49.633Z","assignerShortName":"Docker","assignerOrgId":"686469e6-3ff6-451b-ab8b-cf5b9e89401e","dateReserved":"2026-09-28T16:32:15.536Z"},"containers":{"cna":{"title":"Fail-open response masking in Docker Sandboxes can expose proxy-managed credentials","descriptions":[{"lang":"en","value":"Docker Sandboxes could fail open while masking credentials in protected proxy responses. When a response-body read returned data together with an error, affected handlers could forward unmasked bytes. Code inside an authorized sandbox could use this to recover host-managed OAuth access and refresh tokens or a derived Anthropic API key intended to remain outside the sandbox."}],"affected":[{"vendor":"Docker","product":"Docker Sandboxes","defaultStatus":"unaffected","versions":[{"version":"0.21.0","status":"affected","lessThan":"0.47.0","versionType":"semver"}],"platforms":["Linux","MacOS","Windows"],"cpes":["cpe:2.3:a:docker:docker_sandboxes:*:*:*:*:*:*:*:*"]}],"references":[{"url":"https://docs.docker.com/ai/sandboxes/","tags":["product"]},{"url":"https://docs.docker.com/ai/sandboxes/configuration/credentials/#how-credential-injection-works","tags":["technical-description"]}],"metrics":[{"cvssV4_0":{"version":"4.0","vectorString":"CVSS:4.0/AV:A/AC:L/AT:P/PR:L/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N","baseScore":5.9,"baseSeverity":"MEDIUM","attackVector":"ADJACENT","attackComplexity":"LOW","attackRequirements":"PRESENT","privilegesRequired":"LOW","userInteraction":"NONE","vulnConfidentialityImpact":"HIGH","vulnIntegrityImpact":"NONE","vulnAvailabilityImpact":"NONE","subConfidentialityImpact":"NONE","subIntegrityImpact":"NONE","subAvailabilityImpact":"NONE","Automatable":"NOT_DEFINED","Recovery":"NOT_DEFINED","Safety":"NOT_DEFINED","valueDensity":"NOT_DEFINED","vulnerabilityResponseEffort":"NOT_DEFINED","providerUrgency":"NOT_DEFINED","exploitMaturity":"NOT_DEFINED"},"format":"CVSS","scenarios":[{"lang":"en","value":"GENERAL"}]}],"problemTypes":[{"descriptions":[{"cweId":"CWE-636","description":"CWE-636: Not Failing Securely ('Failing Open')","lang":"en","type":"CWE"}]}],"providerMetadata":{"shortName":"Docker","orgId":"686469e6-3ff6-451b-ab8b-cf5b9e89401e","dateUpdated":"2026-10-08T18:47:28.551Z"},"credits":[{"lang":"en","type":"reporter","value":"Irad Aharoni"}],"solutions":[{"lang":"en","value":"Upgrade to Docker Sandboxes 0.47.0 or later."}],"source":{"discovery":"EXTERNAL"}},"adp":[{"title":"CISA ADP Vulnrichment","metrics":[{"other":{"type":"ssvc","content":{"timestamp":"2026-10-08T19:27:40.966581Z","id":"CVE-2026-101998","options":[{"Exploitation":"none"},{"Automatable":"no"},{"Technical Impact":"partial"}],"role":"CISA Coordinator","version":"2.0.3"}}}],"providerMetadata":{"shortName":"CISA-ADP","orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","dateUpdated":"2026-10-08T19:27:49.633Z"}}]}}}