EUVD-2026-12561Vulnerability Assessment
| Weakness |
CWE
OWASP Top 10:2025
A06:2021 - Vulnerable and Outdated Components
ASVS 5.0
V14 - Configuration Dependency management, component inventory
|
| Impact | CVSS 3.9. EPSS 0.0%. No patch confirmed. |
| Exploit ScenarioDerived | An attacker could exploit this vulnerability in A flaw to compromise the security of affected deployments, potentially impacting confidentiality, integrity, or availability. |
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Alert meAnalysisAIv1 – Mar 17, 2026
A security vulnerability in A flaw (CVSS 3.9). Remediation should follow standard vulnerability management procedures.
Earlier versions of this analysis (1)
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 `sou
RemediationAI
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Technical ContextAI · show details
Vulnerability type not specified by vendor. Affects A flaw.
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- Exploit and PoC references, threat intelligence from 22 sources
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Severity by source
AV:N/AC:H/PR:H/UI:R/S:U/C:L/I:L/A:L
Primary rating from NVD.
CVSS VectorNVD
Lifecycle Timeline
2DescriptionCVE.org
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.
Executive ViewAI
CVE-2026-3634 is a low-severity vulnerability in A flaw (CVSS 3.9). The limited severity suggests constrained impact, typically requiring specific conditions or local access for exploitation. Apply vendor updates when available as part of routine maintenance.
Apply vendor patch during routine maintenance. Standard security controls provide adequate interim protection.
Threat Intelligence Overview
NVD
CVE.org
EPSS
VulDB
How this decision was reached
The engine reads each signal below and applies a fixed list of rules from top to bottom. The first rule that matches sets the recommended action – like a statement, every line is shown.
What every action level means
SSVC AssessmentENISA
Priority Score
Attack Technique
Code injection occurs when an application accepts user input and passes it directly into a language interpreter or evaluator without proper sanitization.
Affected Products (CPE)CVE.org
Related Vulnerabilities in libsoup HTTP Protocol Flaws
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Same technique Code Injection
View allVendor StatusVendor
Ubuntu
Priority: Medium| Release | Status | Version |
|---|---|---|
| upstream | needs-triage | - |
| bionic | deferred | 2026-03-11 |
| focal | deferred | 2026-03-11 |
| jammy | deferred | 2026-03-11 |
| noble | deferred | 2026-03-11 |
| questing | deferred | 2026-03-11 |
| xenial | deferred | 2026-03-11 |
| Release | Status | Version |
|---|---|---|
| upstream | needs-triage | - |
| jammy | deferred | 2026-03-11 |
| noble | deferred | 2026-03-11 |
| questing | deferred | 2026-03-11 |
Debian
Bug #1130501| Release | Status | Fixed Version | Urgency |
|---|---|---|---|
| bullseye | vulnerable | 2.72.0-2 | - |
| bullseye (security) | vulnerable | 2.72.0-2+deb11u3 | - |
| bookworm | vulnerable | 2.74.3-1+deb12u1 | - |
| trixie | vulnerable | 2.74.3-10.1 | - |
| (unstable) | fixed | (unfixed) | - |
| Release | Status | Fixed Version | Urgency |
|---|---|---|---|
| bookworm | vulnerable | 3.2.3-0+deb12u2 | - |
| trixie | vulnerable | 3.6.5-3 | - |
| forky, sid | vulnerable | 3.6.6-1 | - |
| (unstable) | fixed | (unfixed) | - |
GitHub PoC
Exploit-DB