{"id":"GHSA-gr3r-crp5-qrrm","aliases":[],"title":"Compromised tag of intercom-php published via GitHub","titleSource":"OSV","descriptionSource":"OSV","declaredSeverity":"CRITICAL","description":"### 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":"critical","score":9.3,"published":"2026-05-07T16:48:41.000Z","modified":"2026-05-07T17:05:09.385Z","withdrawn":false,"knownExploited":false,"affected":[{"ecosystem":"Packagist","name":"intercom/intercom-php","sources":[{"name":"OSV · GHSA-gr3r-crp5-qrrm","url":"https://osv.dev/vulnerability/GHSA-gr3r-crp5-qrrm"}],"ranges":[],"versions":["5.0.2"],"fixed":[]}],"sourceAffected":[],"references":["https://github.com/intercom/intercom-php/security/advisories/GHSA-gr3r-crp5-qrrm","https://github.com/intercom/intercom-php","https://www.intercomstatus.com/us-hosting/incidents/01KQFN6VS6ARP1XBR1K1SBYY59","https://www.wiz.io/blog/mini-shai-hulud-supply-chain-sap-npm"],"sources":[{"name":"OSV","id":"GHSA-gr3r-crp5-qrrm","modified":"2026-05-07T17:05:09.385592Z","url":"https://osv.dev/vulnerability/GHSA-gr3r-crp5-qrrm"}],"assessments":[{"source":"OSV","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:N","score":9.3}],"products":[],"remediation":[],"kev":{"status":"unavailable","checkedAt":"2026-10-28T10:00:32.459Z"},"coverage":[{"source":"NVD","status":"not-checked"},{"source":"GHSA","status":"not-checked"},{"source":"EUVD","status":"not-checked"},{"source":"EPSS","status":"not-checked"}],"evidence":[]}