CVE-2026-1467

Libsoup: libsoup: http header injection via specially crafted urls when an http proxy is configured

State
Published
Severity
5.8 Medium
Published
Jan 27, 2026
Updated
Mar 25, 2026
Reserved
Jan 27, 2026

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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.

Scores

CVSSScoreVectorSource
3.15.8 MediumCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:L/A:Nredhat

Weaknesses

  • CWE-93 Improper Neutralization of CRLF Sequences ('CRLF Injection')

Affected Products

ProductVersions
Red Hat Enterprise Linux 10Red Hat
    Red Hat Enterprise Linux 6Red Hat
      Red Hat Enterprise Linux 7Red Hat
        Red Hat Enterprise Linux 8Red Hat
          Red Hat Enterprise Linux 9Red Hat

            References

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