{"id":"GHSA-77vh-xpmg-72qh","summary":"Clarify `mediaType` handling","details":"### Impact\nIn the OCI Image Specification version 1.0.1 and prior, manifest and index documents are not self-describing and documents with a single digest could be interpreted as either a manifest or an index.\n\n### Patches\nThe Image Specification will be updated to recommend that both manifest and index documents contain a `mediaType` field to identify the type of document.\nRelease [v1.0.2](https://github.com/opencontainers/image-spec/releases/tag/v1.0.2) includes these updates.\n\n### Workarounds\nSoftware attempting to deserialize an ambiguous document may reject the document if it contains both “manifests” and “layers” fields or “manifests” and “config” fields.\n\n### References\nhttps://github.com/opencontainers/distribution-spec/security/advisories/GHSA-mc8v-mgrf-8f4m\n\n### For more information\nIf you have any questions or comments about this advisory:\n* Open an issue in https://github.com/opencontainers/image-spec\n* Email us at [security@opencontainers.org](mailto:security@opencontainers.org)\n* https://github.com/opencontainers/image-spec/commits/v1.0.2\n","modified":"2026-07-17T21:08:16.713029050Z","published":"2021-11-18T16:02:41Z","database_specific":{"cwe_ids":["CWE-843"],"severity":"LOW","github_reviewed":true,"github_reviewed_at":"2021-11-17T23:13:41Z","nvd_published_at":null},"references":[{"type":"WEB","url":"https://github.com/opencontainers/distribution-spec/security/advisories/GHSA-mc8v-mgrf-8f4m"},{"type":"WEB","url":"https://github.com/opencontainers/image-spec/security/advisories/GHSA-77vh-xpmg-72qh"},{"type":"WEB","url":"https://github.com/opencontainers/image-spec/commit/693428a734f5bab1a84bd2f990d92ef1111cd60c"},{"type":"PACKAGE","url":"https://github.com/opencontainers/image-spec"},{"type":"WEB","url":"https://github.com/opencontainers/image-spec/releases/tag/v1.0.2"}],"affected":[{"package":{"name":"github.com/opencontainers/image-spec","ecosystem":"Go","purl":"pkg:golang/github.com/opencontainers/image-spec"},"ranges":[{"type":"SEMVER","events":[{"introduced":"0"},{"fixed":"1.0.2"}]}],"database_specific":{"source":"https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2021/11/GHSA-77vh-xpmg-72qh/GHSA-77vh-xpmg-72qh.json"}}],"schema_version":"1.9.0","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:H/PR:L/UI:R/S:C/C:N/I:L/A:N"}]}