GHSA-gr3r-crp5-qrrm: Intercom/intercom php Compromised Tag Of Intercom-php Published Vulnerability

{
  "schema_version" : "1.4.0",
  "id" : "GHSA-gr3r-crp5-qrrm",
  "modified" : "2026-05-07T16:48:41Z",
  "published" : "2026-05-07T16:48:41Z",
  "aliases" : [ ],
  "summary" : "Compromised tag of intercom-php published via GitHub",
  "details" : "### Impact\n\nOn April 30, 2026, a malicious commit was pushed to the intercom/intercom-php repository and tagged as version 5.0.2, using a compromised service account (github-management-service). This occurred as part of the same supply chain attack that affected intercom-client on npm.\n\nThe malicious version contained a Composer plugin that acted as a dropper, downloading the Bun JavaScript runtime (version 1.3.13) and executing an obfuscated credential-harvesting payload. The payload targeted cloud provider credentials (AWS, GCP, Azure), environment variables, .env files, SSH keys, local configuration files, and CI/CD secrets.\n\nThe malicious tag was live between approximately 20:53 UTC and 22:37 UTC on April 30, 2026, before being identified and reverted to a clean commit.\n\nThis compromise is part of the \"Mini Shai-Hulud\" supply chain campaign tracked by Wiz and Socket.\n\nTo check if a consuming project is affected, run: `composer show intercom/intercom-php --version`. If the project installed or updated between 20:53 and 22:37 UTC on April 30, it may have received the malicious version. The malicious commit hash was `e69bf4b3`. The clean commit is `9371eba9`. Check `composer.lock` to verify which version the consuming project is using.\n\n### Patches\n\nVersion 5.0.1 and all prior versions are unaffected. The 5.0.2 tag has been reverted to a clean commit. Downgrade to 5.0.1 or run `composer clear-cache` and reinstall to get the clean 5.0.2.\n\n### Workarounds\n\nIf a project installed version 5.0.2 during the affected window, treat all credentials accessible from that environment as compromised and rotate them. Clear the Composer cache with `composer clear-cache` and check `composer.lock` for the commit hash to confirm whether you have the malicious or clean version.\n\n### Resources\n\n- https://www.intercomstatus.com/us-hosting/incidents/01KQFN6VS6ARP1XBR1K1SBYY59\n- https://www.wiz.io/blog/mini-shai-hulud-supply-chain-sap-npm",
  "severity" : [ {
    "type" : "CVSS_V3",
    "score" : "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:N"
  } ],
  "affected" : [ {
    "package" : {
      "ecosystem" : "Packagist",
      "name" : "intercom/intercom-php"
    },
    "versions" : [ "5.0.2" ]
  } ],
  "references" : [ {
    "type" : "WEB",
    "url" : "https://github.com/intercom/intercom-php/security/advisories/GHSA-gr3r-crp5-qrrm"
  }, {
    "type" : "PACKAGE",
    "url" : "https://github.com/intercom/intercom-php"
  }, {
    "type" : "WEB",
    "url" : "https://www.intercomstatus.com/us-hosting/incidents/01KQFN6VS6ARP1XBR1K1SBYY59"
  }, {
    "type" : "WEB",
    "url" : "https://www.wiz.io/blog/mini-shai-hulud-supply-chain-sap-npm"
  } ],
  "database_specific" : {
    "cwe_ids" : [ "CWE-506" ],
    "severity" : "CRITICAL",
    "github_reviewed" : true,
    "github_reviewed_at" : "2026-05-07T16:48:41Z",
    "nvd_published_at" : null
  }
}