{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-105769", "assignerOrgId": "82cea9a6-e9e3-46fe-bdb0-3673de380178", "state": "PUBLISHED", "assignerShortName": "chainguard", "dateReserved": "2026-10-05T19:21:04.930Z", "datePublished": "2026-11-02T16:49:24.557Z", "dateUpdated": "2026-11-02T18:27:36.537Z"}, "containers": {"cna": {"providerMetadata": {"orgId": "82cea9a6-e9e3-46fe-bdb0-3673de380178", "shortName": "chainguard", "dateUpdated": "2026-11-02T18:27:36.537Z"}, "title": "kaniko can send the build's Azure (Entra ID) access token to lookalike ACR registry hosts", "datePublic": "2026-11-02T16:32:00.000Z", "problemTypes": [{"descriptions": [{"lang": "en", "cweId": "CWE-346", "description": "CWE-346: Origin Validation Error", "type": "CWE"}]}, {"descriptions": [{"lang": "en", "cweId": "CWE-522", "description": "CWE-522: Insufficiently Protected Credentials", "type": "CWE"}]}], "affected": [{"vendor": "chainguard", "product": "kaniko", "collectionURL": "https://pkg.go.dev", "packageName": "github.com/chainguard-dev/kaniko", "repo": "https://github.com/chainguard-forks/kaniko", "programFiles": ["third_party/docker-credential-acr-env"], "versions": [{"status": "affected", "version": "0", "lessThan": "1.25.20", "versionType": "semver"}], "defaultStatus": "unaffected"}], "descriptions": [{"lang": "en", "value": "kaniko before 1.25.20 can send a Microsoft Entra ID (Azure AD) access token for Azure Resource Manager to an attacker-controlled registry host. kaniko uses the Azure Container Registry credential helper github.com/chrismellard/docker-credential-acr-env, which decides whether a host is an ACR registry with an unanchored regular expression, so any hostname containing .azurecr.io, .azurecr.cn, .azurecr.de or .azurecr.us is accepted. kaniko consults this helper for any registry that has no credentials in the Docker config and is not a Google or Amazon ECR registry, before contacting the registry. 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