Vulnerability · Published Oct 30, 2026 · Assigned by mitre
CVE-2026-115642
High 8.3
In plain English
A high-severity incorrect authorization in keystonemiddleware from OpenStack. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.5% (higher than 44% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.
Severity (CVSS 3.1)8.3High
Exploit odds (30 days)0.5%top 56.3% of all CVEs
Exploited in the wildNo reportsCISA SSVC: none
Attack toolingNoneno public tooling known
Official description
In OpenStack keystonemiddleware before 13.0.2, by supplying a custom X-Service-Token header in a request, anyone in possession of an access-restricted application credential may bypass those restrictions resulting in elevation of privileges.
Affected packages & fixed versions
| Ecosystem | Package | Fixed in | Advisory |
|---|---|---|---|
| Debian:12 | python-keystonemiddleware | no fix listed | DEBIAN-CVE-2026-115642 |
| Debian:13 | python-keystonemiddleware | no fix listed | DEBIAN-CVE-2026-115642 |
| Debian:14 | python-keystonemiddleware | 13.0.1-5 | DEBIAN-CVE-2026-115642 |
| Ubuntu:22.04:LTS | python-keystonemiddleware | no fix listed | UBUNTU-CVE-2026-115642 |
| Ubuntu:24.04:LTS | python-keystonemiddleware | no fix listed | UBUNTU-CVE-2026-115642 |
| Ubuntu:26.04:LTS | python-keystonemiddleware | no fix listed | UBUNTU-CVE-2026-115642 |
| Ubuntu:26.10 | python-keystonemiddleware | no fix listed | UBUNTU-CVE-2026-115642 |
Affected products (as reported)
| Vendor | Product | Versions |
|---|---|---|
| OpenStack | keystonemiddleware | 0 – before 10.12.211.0.0 – before 12.0.113.0.0 – before 13.0.2 |
Weakness: CWE-863 · Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:L