Upstream information

CVE-2025-48865 at MITRE

Description

Fabio is an HTTP(S) and TCP router for deploying applications managed by consul. Prior to version 1.6.6, Fabio allows clients to remove X-Forwarded headers (except X-Forwarded-For) due to a vulnerability in how it processes hop-by-hop headers. Fabio adds HTTP headers like X-Forwarded-Host and X-Forwarded-Port when routing requests to backend applications. Since the receiving application should trust these headers, allowing HTTP clients to remove or modify them creates potential security vulnerabilities. Some of these custom headers can be removed and, in certain cases, manipulated. The attack relies on the behavior that headers can be defined as hop-by-hop via the HTTP Connection header. This issue has been patched in version 1.6.6.

SUSE information

Overall state of this security issue: Resolved

This issue is currently rated as having critical severity.

CVSS v3 Scores
CVSS detail CNA (GitHub) National Vulnerability Database
Base Score 9.1 9.1
Vector CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N
Attack Vector Network Network
Attack Complexity Low Low
Privileges Required None None
User Interaction None None
Scope Unchanged Unchanged
Confidentiality Impact High High
Integrity Impact High High
Availability Impact None None
CVSSv3 Version 3.1 3.1
No SUSE Bugzilla entries cross referenced.

No SUSE Security Announcements cross referenced.

List of released packages

Product(s) Fixed package version(s) References
Image SL-Micro-Base
Image SL-Micro-Base-RT
Image SL-Micro-Base-RT-SelfInstall
Image SL-Micro-Base-RT-encrypted
Image SL-Micro-Base-SelfInstall
Image SL-Micro-Base-encrypted
Image SL-Micro-Base-qcow
Image SLE-Micro
Image SLE-Micro-Azure
Image SLE-Micro-BYOS
Image SLE-Micro-BYOS-Azure
Image SLE-Micro-BYOS-EC2
Image SLE-Micro-BYOS-GCE
Image SLE-Micro-EC2
Image SLE-Micro-GCE
  • libgnutls30 >= 3.8.3-slfo.1.1_5.1
Image SL-Micro
Image SL-Micro-Default
Image SL-Micro-Default-SelfInstall
Image SL-Micro-Default-encrypted
Image SL-Micro-Default-qcow
  • gnutls >= 3.8.3-slfo.1.1_5.1
  • libgnutls30 >= 3.8.3-slfo.1.1_5.1
SUSE Linux Enterprise Server 16.0
  • govulncheck-vulndb >= 0.0.20250814T182633-160000.1.2
 Patchnames:
SUSE Linux Enterprise Server 16.0 GA govulncheck-vulndb-0.0.20250814T182633-160000.1.2
openSUSE Tumbleweed
  • govulncheck-vulndb >= 0.0.20250612T141001-1.1
 Patchnames:
openSUSE-Tumbleweed-2025-15225

Status of this issue by product and package

Please note that this evaluation state might be work in progress, incomplete or outdated. Also information for service packs in the LTSS phase is only included for issues meeting the LTSS criteria. If in doubt, feel free to contact us for clarification. The updates are grouped by state of their lifecycle. SUSE product lifecycles are documented on the lifecycle page.

Product(s) Source package State
Products under general support and receiving all security fixes.
SUSE Linux Enterprise Server 16.1 govulncheck-vulndb Affected
SUSE Linux Enterprise Server for SAP applications 16.1 govulncheck-vulndb Affected

SUSE Timeline for this CVE

CVE page created: Fri May 30 10:00:25 2025
CVE page last modified: Thu Feb 26 16:45:16 2026