Missing Encryption of Sensitive Data Affecting nextcloud-server-33 package, versions <33.0.5-r3
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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Test your applications- Snyk IDSNYK-WOLFILATEST-NEXTCLOUDSERVER33-17400840
- published22 Jun 2026
- disclosed23 Jun 2026
Introduced: 22 Jun 2026
CVE-2026-55568 (opens in a new tab)How to fix?
Upgrade Wolfi nextcloud-server-33 to version 33.0.5-r3 or higher.
NVD Description
Note: Versions mentioned in the description apply only to the upstream nextcloud-server-33 package and not the nextcloud-server-33 package as distributed by Wolfi.
See How to fix? for Wolfi relevant fixed versions and status.
Guzzle is an extensible PHP HTTP client. Prior to 7.12.1, in certain configurations, traffic expected to be protected by TLS on the hop to the proxy is transmitted in cleartext. Proxy authentication credentials (the Proxy-Authorization header, proxy userinfo in the proxy URL, or CURLOPT_PROXYUSERPWD) are sent without encryption, and the CONNECT target host and port for tunneled HTTPS requests are exposed. The built-in cURL handlers (GuzzleHttp\Handler\CurlHandler and GuzzleHttp\Handler\CurlMultiHandler, used by default whenever the PHP cURL extension is available) accept an https:// proxy. libcurl older than 7.50.2 silently treats an https:// proxy as a plaintext http:// proxy. The TLS connection to the proxy is never established, and the proxy leg is cleartext with no error or warning. An application is affected when it sends requests through one of the built-in cURL handlers, configures an https:// proxy expecting the proxy connection itself to be encrypted, and runs with libcurl older than 7.50.2. This vulnerability is fixed in 7.12.1.