Cleartext Transmission of Sensitive Information Affecting libsoup package, versions [,3.7.1)
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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- published1 Apr 2026
- disclosed30 Mar 2026
- creditKona Arctic
Introduced: 30 Mar 2026
CVE-2026-5119 (opens in a new tab)How to fix?
Upgrade libsoup to version 3.7.1 or higher.
Overview
Affected versions of this package are vulnerable to Cleartext Transmission of Sensitive Information in the process of establishing HTTPS tunnels through a configured HTTP proxy. An attacker can intercept sensitive session cookies by performing a man-in-the-middle attack or by controlling a malicious HTTP proxy, potentially leading to session hijacking or user impersonation.
Workaround
This vulnerability can be mitigated by ensuring that all HTTP proxies used for HTTPS tunnels are trusted and operate within a secure network. Avoid configuring applications to use untrusted HTTP proxies. If feasible, configure applications to bypass proxies for sensitive connections or utilize a secure proxy solution that encrypts the entire communication channel. A service restart or application reload may be required for changes to take effect.