CVE-2026-3634
low-risk
Published 2026-03-17
A flaw was found in libsoup. An attacker controlling the value used to set the Content-Type header can inject a Carriage Return Line Feed (CRLF) sequence due to improper input sanitization in the `soup_message_headers_set_content_type()` function. This vulnerability allows for the injection of arbitrary header-value pairs, potentially leading to HTTP header injection and response splitting attacks.
Do I need to act?
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0.03% chance of exploitation
EPSS score — low exploit probability
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Not on CISA KEV list
No confirmed active exploitation reported to CISA
?
Patch status unknown
Check vendor advisories for fix availability and mitigation guidance
3
CVSS 3.9/10
Low
NETWORK
/ HIGH complexity
Affected Products (6)
References (4)
26
/ 100
low-risk
Severity
13/34 · Low
Exploitability
0/34 · Minimal
Exposure
13/34 · Low