CVE-2026-5119
Publication date 30 March 2026
Last updated 9 July 2026
Ubuntu priority
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
|
| 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
|
| 24.04 LTS noble |
Needs evaluation
|
|
| 22.04 LTS jammy |
Needs evaluation
|
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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)
- USN-8523-1
- libsoup vulnerabilities
- 9 July 2026