{"id":"CVE-2026-113957","kind":"vulnerability","aliases":["CVE-2026-113957"],"related":[],"title":"container: digest pulls can be served a different image","description":"An attacker who controls the registry, a mirror, or the network path to it may be able to serve arbitrary image content in response to a pull by digest, so that a user runs an image other than the one they pinned. The fix compares the returned digest to the pinned digest and fails the pull on a mismatch. Tag pulls are exempt, because a tag is mutable by design. The fix also verifies the hash of manifests and blobs when they are fetched. This vulnerability is addressed in container version 1.6.0 and containerization version 0.52.1.","summary":"When a pull is made by digest, an attacker who controls the registry, a mirror, or the network path can serve other image content, so the user runs an image other than the one they pinned. The fix compares the returned digest to the pinned digest, fails on a mismatch, and verifies manifest and blob hashes when they are fetched.","severity":"unknown","cvss":null,"epss":null,"exploited":false,"exploited_at":null,"products":[],"ecosystems":[],"tags":["containerization","containers","image-pulls","infrastructure"],"not_affected_if":["tag-only-pulls"],"how_to_check":"- Check whether the installed `container` version is below `1.6.0`.\n- Check whether the installed `containerization` version is below `0.52.1`.\n- The sources do not give a command for reading these versions.","fix":"- Upgrade `container` to `1.6.0` or later.\n- Upgrade `containerization` to `0.52.1` or later.","status":"open","published_at":"2026-10-29T01:17:22+00:00","first_seen_at":"2026-10-29T01:36:30+00:00","triaged_at":"2026-10-29T01:37:44+00:00","updated_at":"2026-10-29T01:37:44+00:00","category":"infrastructure","confidence":0.6,"triage":{"at":"2026-10-29T01:37:44Z","model":"claude-haiku-5-5","output":{"fix":"- Upgrade `container` to `1.6.0` or later.\n- Upgrade `containerization` to `0.52.1` or later.","reach":"network","title":"container: digest pulls can be served a different image","impact":"high","summary":"When a pull is made by digest, an attacker who controls the registry, a mirror, or the network path can serve other image content, so the user runs an image other than the one they pinned. The fix compares the returned digest to the pinned digest, fails on a mismatch, and verifies manifest and blob hashes when they are fetched.","category":"infrastructure","nicknames":[],"who_cares":["containers","containerization","image-pulls"],"confidence":0.6,"needs_auth":"no","worst_case":"Attacker-chosen image runs in place of the pinned image","analyst_note":"","how_to_check":"- Check whether the installed `container` version is below `1.6.0`.\n- Check whether the installed `containerization` version is below `0.52.1`.\n- The sources do not give a command for reading these versions.","needs_analyst":false,"not_affected_if":["tag-only-pulls"],"who_is_affected":"Teams that pull images by digest through a registry, mirror, or network path they do not fully control are exposed to a substituted image. The sources do not say which configurations make this more likely. Tag-only pulls are exempt by design, since tags are mutable.","user_interaction":"yes","needs_special_setup":"unknown","severity_if_unknown":"unknown"},"cost_usd":0.001103,"input_tokens":3378,"output_tokens":1530,"severity_before":"unknown"},"analyst_status":null,"analyst_note":null,"search":"'-113957':12A,15A '-2026':11A,14A '0.52.1':177C '1.6.0':173C 'abl':98C 'address':169C 'also':154C 'arbitrari':101C 'attack':30B,83C 'blob':76B,161C 'compar':60B,126C 'contain':1A,17B,171C 'container':16B,175C 'content':45B,103C 'control':32B,85C 'cve':10A,13A 'design':151C 'differ':8A 'digest':2A,28B,63B,67B,110C,129C,133C 'exempt':144C 'fail':68B,135C 'fetch':81B,165C 'fix':59B,125C,153C 'hash':77B,157C 'imag':9A,19B,44B,51B,102C,117C 'image-pul':18B 'infrastructur':21B 'made':26B 'manifest':74B,159C 'may':96C 'mirror':36B,89C 'mismatch':71B,140C 'mutabl':149C 'network':39B,92C 'one':55B,121C 'path':40B,93C 'pin':57B,66B,123C,132C 'pull':3A,20B,24B,108C,137C,142C 'registri':34B,87C 'respons':105C 'return':62B,128C 'run':49B,115C 'serv':6A,42B,100C 'tag':141C,147C 'user':48B,114C 'verifi':73B,155C 'version':172C,176C 'vulner':167C","nicknames":[],"mitigations":[],"who_affected":"Teams that pull images by digest through a registry, mirror, or network path they do not fully control are exposed to a substituted image. The sources do not say which configurations make this more likely. Tag-only pulls are exempt by design, since tags are mutable.","tier":"C","verified":{},"analyst_revisit_at":null,"fix_status":null,"audience":null,"plain_action":null,"first_public_at":"2026-10-29T01:17:22+00:00","kev":null,"cvss_vector":null,"cvss_by":null,"poc_count":0,"sources":[{"source":"nvd","external_id":"CVE-2026-113957","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-113957","severity":null,"published_at":"2026-10-29T01:17:22+00:00","modified_at":"2026-10-29T01:17:22+00:00","first_seen_at":"2026-10-29T01:36:30+00:00","fetched_at":"2026-10-29T01:36:30+00:00","note":null}],"documents":[],"notice":"Free to read at a human pace. An API with keys and an MCP server are in preparation; early access: hello@infrastack.ai"}