EUVD-2026-12559
CVSS Vector
CVSS:3.1/AV:N/AC:H/PR:H/UI:R/S:U/C:L/I:L/A:L
Lifecycle Timeline
4Description
A flaw was found in libsoup, a library used by applications to send network requests. This vulnerability occurs because libsoup does not properly validate hostnames, allowing special characters to be injected into HTTP headers. A remote attacker could exploit this to perform HTTP smuggling, where they can send hidden, malicious requests alongside legitimate ones. In certain situations, this could lead to Server-Side Request Forgery (SSRF), enabling an attacker to force the server to make unauthorized requests to other internal or external systems. The impact is low, as SoupServer is not actually used in internet infrastructure.
Analysis
A flaw was found in libsoup, a library used by applications to send network requests.
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Remediation
During next maintenance window: Apply vendor patches when convenient. Monitor vendor channels for updates.
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Priority Score
Vendor Status
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 #1130499| 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) | - |
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External POC / Exploit Code
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