9.4

CVE-2026-94571

In OpenStack Octavia before 18.0.1, the Amphora provider driver did not reject control characters in the L7 policy redirect_url and redirect_prefix fields. The RFC 3986 URL validator percent-encodes control characters before validating, and thus newlines passed structural checks, but Octavia stored and wrote the raw unencoded value directly into the HAProxy configuration generated on the amphora. An authenticated project member who owns a load balancer can therefore inject arbitrary HAProxy directives through a REDIRECT_TO_URL L7 policy. Only deployments using the Amphora provider are affected.
Daten sind bereitgestellt durch das CVE Programm von einer CVE Numbering Authority (CNA) (Unstrukturiert).
HerstellerOpenStack
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Produkt Octavia
Default Statusunaffected
Version 0.8.0
Version < 16.1.0
Status affected
Version 17.0.0
Version < 17.0.1
Status affected
Version 18.0.0
Version < 18.0.1
Status affected
VulnDex Vulnerability Enrichment
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Zu dieser CVE wurde keine Warnung gefunden.
EPSS Metriken
Typ Quelle Score Percentile
EPSS FIRST.org 0.33% 0.266
CVSS Metriken
Quelle Base Score Exploit Score Impact Score Vector String
MITRE 9.4 0 0
CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
CWE-94 Improper Control of Generation of Code ('Code Injection')

The product constructs all or part of a code segment using externally-influenced input from an upstream component, but it does not neutralize or incorrectly neutralizes special elements that could modify the syntax or behavior of the intended code segment.

https://bugs.launchpad.net/octavia/+bug/2162103
https://bugs.launchpad.net/octavia/+bug/2167565
https://bugs.debian.org/1148175
https://opendev.org/openstack/octavia/commit/bad7074621562d90a38be4639c1ab3e245f5bf39
https://security.openstack.org/ossa/OSSA-2026-039.html
https://openwall.com/lists/oss-security/2026/09/21/6