CVE-2026-5119

Publication date 30 March 2026

Last updated 9 July 2026

Ubuntu priority

Medium

Why this priority?

Cvss 3 Severity Score

5.9 · Medium

Score breakdown

Description

A flaw was found in libsoup. When establishing HTTPS tunnels through a configured HTTP proxy, sensitive session cookies are transmitted in cleartext within the initial HTTP CONNECT request. A network-positioned attacker or a malicious HTTP proxy can intercept these cookies, leading to potential session hijacking or user impersonation.

Status

Package Ubuntu Release Status
libsoup2.4 26.04 LTS resolute
Fixed 2.74.3-10.1ubuntu5+esm1
25.10 questing
Fixed 2.74.3-10.1ubuntu4.1
24.04 LTS noble
Fixed 2.74.3-6ubuntu1.7
22.04 LTS jammy
Fixed 2.74.2-3ubuntu0.7
20.04 LTS focal
Fixed 2.70.0-1ubuntu0.5+esm2
18.04 LTS bionic
Fixed 2.62.1-1ubuntu0.4+esm7
16.04 LTS xenial
Fixed 2.52.2-1ubuntu0.3+esm6
libsoup3 26.04 LTS resolute
Needs evaluation
25.10 questing Ignored end of life, was needs-triage
24.04 LTS noble
Needs evaluation
22.04 LTS jammy
Needs evaluation

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Patch details

For informational purposes only. We recommend not to cherry-pick updates. How can I get the fixes?

Package Patch details
libsoup2.4

Severity score breakdown

CVSS version: CVSS v3.0

Base score 5.9 · Medium

Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:L/A:N

References

Related Ubuntu Security Notices (USN)

Other references

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