{"id":"GHSA-77vh-xpmg-72qh","aliases":[],"status":"published","title":"Clarify `mediaType` handling","description":"### 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","severity":{"version":"3.1","score":3,"vector":"CVSS:3.1/AV:N/AC:H/PR:L/UI:R/S:C/C:N/I:L/A:N","level":"low","from":"ghsa"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":true},"cwes":["CWE-843"],"published":"2021-11-18T16:02:41Z","modified":"2026-09-10T03:49:09Z","fixes":[{"ecosystem":"Go","package":"github.com/opencontainers/image-spec","fixed_in":["1.0.2"],"sources":["ghsa","osv"]}],"affected":[{"source":"ghsa","ecosystem":"Go","package":"github.com/opencontainers/image-spec","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1.0.2"}]}]},{"source":"osv","ecosystem":"Go","package":"github.com/opencontainers/image-spec","ranges":[{"type":"SEMVER","events":[{"introduced":"0"},{"fixed":"1.0.2"}]}]}],"references":[{"url":"https://github.com/opencontainers/distribution-spec/security/advisories/GHSA-mc8v-mgrf-8f4m","tags":["web"]},{"url":"https://github.com/opencontainers/image-spec/security/advisories/GHSA-77vh-xpmg-72qh","tags":["web"]},{"url":"https://github.com/opencontainers/image-spec/commit/693428a734f5bab1a84bd2f990d92ef1111cd60c","tags":["web"]},{"url":"https://github.com/opencontainers/image-spec/releases/tag/v1.0.2","tags":["web"]},{"url":"https://github.com/advisories/GHSA-77vh-xpmg-72qh"},{"url":"https://github.com/opencontainers/image-spec","tags":["package"]}],"sources":{"ghsa":[{"id":"GHSA-77vh-xpmg-72qh","title":"Clarify `mediaType` handling","description":"### 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","status":"published","published":"2021-11-18T16:02:41Z","modified":"2023-01-09T05:05:32Z","cvss":[{"version":"3.1","score":3,"vector":"CVSS:3.1/AV:N/AC:H/PR:L/UI:R/S:C/C:N/I:L/A:N","level":"low"}],"cwes":["CWE-843"],"updated_at":"2026-11-02T14:36:11.367194Z"}],"osv":[{"id":"GHSA-77vh-xpmg-72qh","title":"Clarify `mediaType` handling","description":"### 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","status":"published","published":"2021-11-18T16:02:41Z","modified":"2026-09-10T03:49:09.703536006Z","cvss":[{"version":"3.1","score":3,"vector":"CVSS:3.1/AV:N/AC:H/PR:L/UI:R/S:C/C:N/I:L/A:N","level":"low"}],"cwes":["CWE-843"],"updated_at":"2026-11-02T15:46:40.657155Z"}]}}