Missing Encryption of Sensitive Data Affecting guzzlehttp/guzzle package, versions <7.12.1
Threat Intelligence
The probability is the direct output of the EPSS model, and conveys an overall sense of the threat of exploitation in the wild. The percentile measures the EPSS probability relative to all known EPSS scores. Note: This data is updated daily, relying on the latest available EPSS model version. Check out the EPSS documentation for more details.
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- published22 Jun 2026
- disclosed19 Jun 2026
- creditGraham Campbell
Introduced: 19 Jun 2026
CVE-2026-55568 (opens in a new tab)How to fix?
Upgrade guzzlehttp/guzzle to version 7.12.1 or higher.
Overview
Affected versions of this package are vulnerable to Missing Encryption of Sensitive Data due to the fallback on insecure plaintext http:// option proxy in cURL handlers. An attacker can gain unauthorized access to sensitive data such as proxy negotiation and proxy credentials by intercepting unencrypted proxy requests.