EUVD-2026-12559Severity 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
4DescriptionCVE.org
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.
AnalysisAI
A flaw was found in libsoup, a library used by applications to send network requests.
Technical ContextAI
Server-Side Request Forgery allows an attacker to induce the server to make HTTP requests to arbitrary destinations, including internal services.
RemediationAI
Validate and whitelist allowed URLs and IP ranges. Block requests to internal/private IP ranges. Use network segmentation to limit server-side request scope.
More in Red Hat Enterprise Linux 10
View allHeap corruption via double-free in 389-ds-base's LDAP control parsing allows an unauthenticated remote attacker to crash
Remote code execution in Cockpit's web interface allows unauthenticated attackers to execute arbitrary commands on the h
Remote code execution in Samba's printing subsystem allows remote attackers to inject arbitrary shell commands via craft
Authentication bypass in 389 Directory Server (shipped as Red Hat Directory Server 11-13 and within RHEL 6-10) lets remo
Remote code execution and privilege escalation in HPLIP (HP Linux Imaging and Printing) affects the hpcups print filter
Unauthenticated privilege escalation in FreeIPA (Red Hat Identity Management) allows a remote attacker to gain genuine a
Remote code execution in libarchive on 32-bit systems allows unauthenticated attackers to execute arbitrary code via spe
HTTP request smuggling in Undertow (the embedded web server underpinning JBoss EAP, Red Hat Data Grid, and Apache Camel
HTTP request smuggling in Red Hat Undertow allows remote unauthenticated attackers to bypass front-end security controls
Out-of-bounds read in the GnuTLS DTLS handshake reassembly logic lets remote unauthenticated attackers trigger an intege
HTTP request smuggling in Undertow allows remote unauthenticated attackers to send `\r\r\r` as a header block terminator
Local privilege escalation in Performance Co-Pilot (PCP) on Red Hat Enterprise Linux 6 through 10 and OpenShift Containe
Vendor 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 #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) | - |
Share
External POC / Exploit Code
Leaving vuln.today