CVE-2026-22797An issue was discovered in OpenStack keystonemiddleware 10.5 through 10.7 before 10.7.2, 10.8 and 10.9 before 10.9.1, and 10.10 through 10.12 before 10.12.1.
Updated under an hour ago ()
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It affects OpenStack keystonemiddleware and 2 other products. Add what you run to find out whether that includes you.
No exploitation reported and no EPSS estimate yet.
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Free account, 1 product
An issue was discovered in OpenStack keystonemiddleware 10.5 through 10.7 before 10.7.2, 10.8 and 10.9 before 10.9.1, and 10.10 through 10.12 before 10.12.1. The external_oauth2_token middleware fails to sanitize incoming authentication headers before processing OAuth 2.0 tokens. By sending forged identity headers such as X-Is-Admin-Project, X-Roles, or X-User-Id, an authenticated attacker may escalate privileges or impersonate other users. All deployments using the external_oauth2_token middleware are affected.
- CVSS
- 9.9 CRITICAL (v3.1, CNA)CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:L
- Weakness (CWE)
- CWE-290
- Known exploited
- Not in CISA's KEV catalog
- EPSS (exploitation in the next 30 days)
- Not loaded for this CVE
- Assigned by
- mitre
- NVD analysis
- Deferred
- Record last updated
- Sep 10, 2026
- First seen by InfoSec Signals
- Oct 9, 2026
Affected products
OpenStack keystonemiddleware openstack:keystonemiddleware (from the name) | from 10.5.0 before 10.7.2; from 10.8.0 before 10.9.1; from 10.10.0 before 10.12.1 | CNA record |
Red Hat Red Hat OpenShift Container Platform 4.17 redhat:openshift | from 1774266098 not affected | CISA ADP |
Red Hat Red Hat OpenStack Platform 13 (Queens) redhat:openstack | 13 | CISA ADP |
References
- https://launchpad.net/bugs/2129018
- https://www.openwall.com/lists/oss-security/2026/01/16/9
- http://www.openwall.com/lists/oss-security/2026/01/15/1
- http://www.openwall.com/lists/oss-security/2026/01/16/2
- http://www.openwall.com/lists/oss-security/2026/01/16/3
- http://www.openwall.com/lists/oss-security/2026/01/16/9
- https://access.redhat.com/errata/RHSA-2026:3402
- https://access.redhat.com/errata/RHSA-2026:3855
- https://access.redhat.com/errata/RHSA-2026:4434
- https://access.redhat.com/errata/RHSA-2026:5133
- https://access.redhat.com/errata/RHSA-2026:5907
- https://access.redhat.com/security/cve/CVE-2026-22797
- https://bugzilla.redhat.com/show_bug.cgi?id=2430879
- https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-22797.json
The CVE record on cve.org NVD's entry
The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.