Fides is an open-source privacy engineering platform. `fides.js`, a client-side script used to interact with the consent management features of Fides, used the `polyfill.io` domain in a very limited edge case, when it detected a legacy browser such as IE11 that did not support the fetch standard. Therefore it was possible for users of legacy, pre-2017 browsers who navigate to a page serving `fides.js` to download and execute malicious scripts from the `polyfill.io` domain when the domain was compromised and serving malware. No exploitation of `fides.js` via `polyfill.io` has been identified as of time of publication. The vulnerability has been patched in Fides version `2.39.1`. Users are advised to upgrade to this version or later to secure their systems against this threat. On Thursday, June 27, 2024, Cloudflare and Namecheap intervened at a domain level to ensure `polyfill.io` and its subdomains could not resolve to the compromised service, rendering this vulnerability unexploitable. Prior to the domain level intervention, there were no server-side workarounds and the confidentiality, integrity, and availability impacts of this vulnerability were high. Clients could ensure they were not affected by using a modern browser that supported the fetch standard.

• https://fetch.spec.whatwg.org
• https://github.com/ethyca/fides/commit/868c4d629760572192bd61db34f5a4458ed12005
• https://github.com/ethyca/fides/pull/5026
• https://github.com/ethyca/fides/security/advisories/GHSA-cvw4-c69g-7v7m
• https://sansec.io/research/polyfill-supply-chain-attack
• https://fetch.spec.whatwg.org
• https://github.com/ethyca/fides/commit/868c4d629760572192bd61db34f5a4458ed12005
• https://github.com/ethyca/fides/pull/5026
• https://github.com/ethyca/fides/security/advisories/GHSA-cvw4-c69g-7v7m
• https://sansec.io/research/polyfill-supply-chain-attack

• Ethyca » Fides » Version: 0.9.0
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• Ethyca » Fides » Version: 0.9.1
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• Ethyca » Fides » Version: 0.9.2
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• Ethyca » Fides » Version: 0.9.3
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• Ethyca » Fides » Version: 0.9.4
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• Ethyca » Fides » Version: 0.9.5
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• Ethyca » Fides » Version: 0.9.6
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• Ethyca » Fides » Version: 0.9.7
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• Ethyca » Fides » Version: 0.9.8
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• Ethyca » Fides » Version: 0.9.8.1
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• Ethyca » Fides » Version: 0.9.8.2
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• Ethyca » Fides » Version: 0.9.8.3
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• Ethyca » Fides » Version: 0.9.8.4
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• Ethyca » Fides » Version: 0.9.9
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• Ethyca » Fides » Version: 1.0.0
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• Ethyca » Fides » Version: 1.1.0
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• Ethyca » Fides » Version: 1.1.1
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• Ethyca » Fides » Version: 1.2.0
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• Ethyca » Fides » Version: 1.3.0
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• Ethyca » Fides » Version: 1.3.1
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• Ethyca » Fides » Version: 1.4.0
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• Ethyca » Fides » Version: 1.4.1
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• Ethyca » Fides » Version: 1.4.2
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• Ethyca » Fides » Version: 1.5.0
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• Ethyca » Fides » Version: 1.5.1
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• Ethyca » Fides » Version: 1.5.2
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• Ethyca » Fides » Version: 1.5.3
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• Ethyca » Fides » Version: 1.6.0
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• Ethyca » Fides » Version: 1.6.1
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• Ethyca » Fides » Version: 1.7.0
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• Ethyca » Fides » Version: 1.7.1
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• Ethyca » Fides » Version: 1.8.0
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• Ethyca » Fides » Version: 1.8.1
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• Ethyca » Fides » Version: 1.8.2
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• Ethyca » Fides » Version: 1.8.3
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• Ethyca » Fides » Version: 1.8.4
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• Ethyca » Fides » Version: 1.8.5
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• Ethyca » Fides » Version: 1.8.6
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• Ethyca » Fides » Version: 1.9.0
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• Ethyca » Fides » Version: 1.9.1
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• Ethyca » Fides » Version: 1.9.2
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• Ethyca » Fides » Version: 1.9.3
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• Ethyca » Fides » Version: 1.9.4
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• Ethyca » Fides » Version: 1.9.5
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• Ethyca » Fides » Version: 1.9.6
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• Ethyca » Fides » Version: 1.9.9
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• Ethyca » Fides » Version: 2.0.0
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• Ethyca » Fides » Version: 2.1.0
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• Ethyca » Fides » Version: 2.10.0
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• Ethyca » Fides » Version: 2.10.1
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• Ethyca » Fides » Version: 2.11.0
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• Ethyca » Fides » Version: 2.11.1
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• Ethyca » Fides » Version: 2.12.0
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• Ethyca » Fides » Version: 2.12.1
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• Ethyca » Fides » Version: 2.12.2
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• Ethyca » Fides » Version: 2.13.0
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• Ethyca » Fides » Version: 2.13.1
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• Ethyca » Fides » Version: 2.14.0
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• Ethyca » Fides » Version: 2.14.1
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• Ethyca » Fides » Version: 2.14.2
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• Ethyca » Fides » Version: 2.14.3
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• Ethyca » Fides » Version: 2.15.0
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• Ethyca » Fides » Version: 2.15.1
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• Ethyca » Fides » Version: 2.15.2
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• Ethyca » Fides » Version: 2.16.0
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• Ethyca » Fides » Version: 2.16.1
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• Ethyca » Fides » Version: 2.17.0
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• Ethyca » Fides » Version: 2.17.1
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• Ethyca » Fides » Version: 2.17.2
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• Ethyca » Fides » Version: 2.18.0
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• Ethyca » Fides » Version: 2.18.1
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• Ethyca » Fides » Version: 2.19.0
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• Ethyca » Fides » Version: 2.19.1
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• Ethyca » Fides » Version: 2.19.2
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• Ethyca » Fides » Version: 2.2.0
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• Ethyca » Fides » Version: 2.2.1
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• Ethyca » Fides » Version: 2.2.2
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• Ethyca » Fides » Version: 2.20.0
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• Ethyca » Fides » Version: 2.20.1
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• Ethyca » Fides » Version: 2.20.2
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• Ethyca » Fides » Version: 2.20.3
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• Ethyca » Fides » Version: 2.21.0
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• Ethyca » Fides » Version: 2.21.1
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• Ethyca » Fides » Version: 2.22.0
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• Ethyca » Fides » Version: 2.22.1
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• Ethyca » Fides » Version: 2.22.2
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• Ethyca » Fides » Version: 2.23.0
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• Ethyca » Fides » Version: 2.23.1
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• Ethyca » Fides » Version: 2.23.2
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• Ethyca » Fides » Version: 2.23.3
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• Ethyca » Fides » Version: 2.24.0
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• Ethyca » Fides » Version: 2.24.1
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• Ethyca » Fides » Version: 2.24.2
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• Ethyca » Fides » Version: 2.25.0
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• Ethyca » Fides » Version: 2.25.1
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• Ethyca » Fides » Version: 2.26.0
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• Ethyca » Fides » Version: 2.26.1
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• Ethyca » Fides » Version: 2.26.3
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• Ethyca » Fides » Version: 2.27.0
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• Ethyca » Fides » Version: 2.27.1
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• Ethyca » Fides » Version: 2.28.0
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• Ethyca » Fides » Version: 2.28.1
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• Ethyca » Fides » Version: 2.29.0
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• Ethyca » Fides » Version: 2.29.1
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• Ethyca » Fides » Version: 2.3.0
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• Ethyca » Fides » Version: 2.3.1
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• Ethyca » Fides » Version: 2.30.0
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• Ethyca » Fides » Version: 2.30.1
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• Ethyca » Fides » Version: 2.30.2
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• Ethyca » Fides » Version: 2.31.0
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• Ethyca » Fides » Version: 2.31.1
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• Ethyca » Fides » Version: 2.32.0
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• Ethyca » Fides » Version: 2.32.1
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• Ethyca » Fides » Version: 2.33.0
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• Ethyca » Fides » Version: 2.33.1
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• Ethyca » Fides » Version: 2.33.2
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• Ethyca » Fides » Version: 2.34.0
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• Ethyca » Fides » Version: 2.34.1
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• Ethyca » Fides » Version: 2.34.2
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• Ethyca » Fides » Version: 2.35.0
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• Ethyca » Fides » Version: 2.35.1
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• Ethyca » Fides » Version: 2.35.2
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• Ethyca » Fides » Version: 2.36.0
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• Ethyca » Fides » Version: 2.36.1
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• Ethyca » Fides » Version: 2.36.2
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• Ethyca » Fides » Version: 2.37.0
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• Ethyca » Fides » Version: 2.37.1
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• Ethyca » Fides » Version: 2.38.0
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• Ethyca » Fides » Version: 2.38.1
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• Ethyca » Fides » Version: 2.38.2
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• Ethyca » Fides » Version: 2.39.0
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• Ethyca » Fides » Version: 2.4.0
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• Ethyca » Fides » Version: 2.5.0
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• Ethyca » Fides » Version: 2.5.1
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• Ethyca » Fides » Version: 2.6.0
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• Ethyca » Fides » Version: 2.6.1
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• Ethyca » Fides » Version: 2.6.2
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• Ethyca » Fides » Version: 2.6.3
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• Ethyca » Fides » Version: 2.6.4
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• Ethyca » Fides » Version: 2.6.5
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• Ethyca » Fides » Version: 2.6.6
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• Ethyca » Fides » Version: 2.7.0
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• Ethyca » Fides » Version: 2.7.1
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• Ethyca » Fides » Version: 2.8.0
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• Ethyca » Fides » Version: 2.8.1
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• Ethyca » Fides » Version: 2.8.2
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• Ethyca » Fides » Version: 2.8.3
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• Ethyca » Fides » Version: 2.9.0
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• Ethyca » Fides » Version: 2.9.1
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• Ethyca » Fides » Version: 2.9.2
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• Ethyca » Fides » Version: 2.9.3
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• Ethyca » Fides » Version: 2.9.5
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