CVE-2026-1467
Publication date 27 January 2026
Last updated 9 February 2026
Ubuntu priority
Description
A flaw was found in libsoup, an HTTP client library. This vulnerability, known as CRLF (Carriage Return Line Feed) Injection, occurs when an HTTP proxy is configured and the library improperly handles URL-decoded input used to create the Host header. A remote attacker can exploit this by providing a specially crafted URL containing CRLF sequences, allowing them to inject additional HTTP headers or complete HTTP request bodies. This can lead to unintended or unauthorized HTTP requests being forwarded by the proxy, potentially impacting downstream services.
Status
| Package | Ubuntu Release | Status |
|---|---|---|
| libsoup3 | 25.10 questing |
Fixed 3.6.5-4ubuntu0.2
|
| 24.04 LTS noble |
Fixed 3.4.4-5ubuntu0.7
|
|
| 22.04 LTS jammy |
Fixed 3.0.7-0ubuntu1+esm7
|
|
| libsoup2.4 | 25.10 questing |
Vulnerable
|
| 24.04 LTS noble |
Vulnerable
|
|
| 22.04 LTS jammy |
Vulnerable
|
|
| 20.04 LTS focal |
Vulnerable
|
|
| 18.04 LTS bionic |
Vulnerable
|
|
| 16.04 LTS xenial |
Vulnerable
|
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| Parameter | Value |
|---|---|
| Base score |
5.8 · Medium
|
| Attack vector | Network |
| Attack complexity | Low |
| Privileges required | None |
| User interaction | None |
| Scope | Changed |
| Confidentiality | None |
| Integrity impact | Low |
| Availability impact | None |
| Vector | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:L/A:N |
References
Related Ubuntu Security Notices (USN)
- USN-8020-1
- libsoup vulnerabilities
- 8 February 2026