Vulnerability-Lookup

RHSA-2026:28044

Vulnerability from csaf_redhat - Published: 2026-06-22 21:01 - Updated: 2026-06-23 03:35

Summary

Red Hat Security Advisory: Red Hat OpenStack Platform 17.1 (openstack-keystone) security update

Severity

Important

Notes

Topic: An update for openstack-keystone is now available for Red Hat OpenStack Platform 17.1 (Wallaby). Red Hat Product Security has rated this update as having a security impact of Low. A Common Vulnerability Scoring System (CVSS) base score, which gives a detailed severity rating, is available for each vulnerability from the CVE link(s) in the References section.

Details: Keystone is a Python implementation of the OpenStack (http://www.openstack.org) identity service API. Security Fix(es): * OpenStack Keystone: Privilege escalation through EC2 credential creation (CVE-2026-33551) * OpenStack Keystone: Unauthenticated access to EC2/S3 token endpoints can grant Keystone authorization (CVE-2025-65073) For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page listed in the References section.

Terms of Use: This content is licensed under the Creative Commons Attribution 4.0 International License (https://creativecommons.org/licenses/by/4.0/). If you distribute this content, or a modified version of it, you must provide attribution to Red Hat Inc. and provide a link to the original.

CVE-2025-65073

A flaw was found in OpenStack Keystone. This vulnerability allows an attacker to obtain a valid OpenStack's Keystone token, leading to access to unauthorized resources or privilege escalation within the OpenStack instance via sending a valid AWS (Amazon Web Services) signature to the /v3/ec2tokens or /v3/s3tokens API (Application Programming Interface) endpoints.

7.5 (High)


                        
                          CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:L/I:H/A:N

CWE-863 - Incorrect Authorization

Affected products

Fixed 6 products

Product	Version	Remediation
Unresolved product id: 9Base-RHOS-17.1:openstack-swift-0:2.27.1-17.1.20231004180819.el9ost.src	—	Vendor Fix fix Workaround
Unresolved product id: 9Base-RHOS-17.1:openstack-swift-account-0:2.27.1-17.1.20231004180819.el9ost.noarch	—	Vendor Fix fix Workaround
Unresolved product id: 9Base-RHOS-17.1:openstack-swift-container-0:2.27.1-17.1.20231004180819.el9ost.noarch	—	Vendor Fix fix Workaround
Unresolved product id: 9Base-RHOS-17.1:openstack-swift-object-0:2.27.1-17.1.20231004180819.el9ost.noarch	—	Vendor Fix fix Workaround
Unresolved product id: 9Base-RHOS-17.1:openstack-swift-proxy-0:2.27.1-17.1.20231004180819.el9ost.noarch	—	Vendor Fix fix Workaround
Unresolved product id: 9Base-RHOS-17.1:python3-swift-0:2.27.1-17.1.20231004180819.el9ost.noarch	—	Vendor Fix fix Workaround

Known not affected 8 products

Product	Version	Remediation
Unresolved product id: 9Base-RHOS-17.1:openstack-keystone-1:19.0.2-17.1.20260529190847.54dd95d.el9ost.noarch	—	Workaround
Unresolved product id: 9Base-RHOS-17.1:openstack-keystone-1:19.0.2-17.1.20260529190847.54dd95d.el9ost.src	—	Workaround
Unresolved product id: 9Base-RHOS-17.1:openstack-tempest-1:33.0.0-17.1.20260406141650.1580f6f.el9ost.noarch	—	Workaround
Unresolved product id: 9Base-RHOS-17.1:openstack-tempest-1:33.0.0-17.1.20260406141650.1580f6f.el9ost.src	—	Workaround
Unresolved product id: 9Base-RHOS-17.1:openstack-tempest-all-1:33.0.0-17.1.20260406141650.1580f6f.el9ost.noarch	—	Workaround
Unresolved product id: 9Base-RHOS-17.1:python3-keystone-1:19.0.2-17.1.20260529190847.54dd95d.el9ost.noarch	—	Workaround
Unresolved product id: 9Base-RHOS-17.1:python3-tempest-1:33.0.0-17.1.20260406141650.1580f6f.el9ost.noarch	—	Workaround
Unresolved product id: 9Base-RHOS-17.1:python3-tempest-tests-1:33.0.0-17.1.20260406141650.1580f6f.el9ost.noarch	—	Workaround

Threats

Impact Important

CVE-2026-33551

A flaw was found in OpenStack Keystone. An authenticated user with a reader role can exploit a vulnerability in the EC2 credential creation endpoint. By using a restricted application credential to call the EC2 credential creation API, the user may obtain EC2/S3 credentials that carry the full set of the parent user's S3 permissions. This effectively bypasses the role restrictions imposed on the application credential, leading to unauthorized access and privilege escalation. This issue affects deployments that use restricted application credentials in combination with the EC2/S3 compatibility API.

3.5 (Low)


                        
                          CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:C/C:N/I:L/A:N

CWE-266 - Incorrect Privilege Assignment

Affected products

Fixed 3 products

Product	Version	Remediation
Unresolved product id: 9Base-RHOS-17.1:openstack-keystone-1:19.0.2-17.1.20260529190847.54dd95d.el9ost.noarch	—	Vendor Fix fix
Unresolved product id: 9Base-RHOS-17.1:openstack-keystone-1:19.0.2-17.1.20260529190847.54dd95d.el9ost.src	—	Vendor Fix fix
Unresolved product id: 9Base-RHOS-17.1:python3-keystone-1:19.0.2-17.1.20260529190847.54dd95d.el9ost.noarch	—	Vendor Fix fix

Known not affected 11 products

Product	Identifier	Version	Remediation
Unresolved product id: 9Base-RHOS-17.1:openstack-swift-0:2.27.1-17.1.20231004180819.el9ost.src		—
Unresolved product id: 9Base-RHOS-17.1:openstack-swift-account-0:2.27.1-17.1.20231004180819.el9ost.noarch		—
Unresolved product id: 9Base-RHOS-17.1:openstack-swift-container-0:2.27.1-17.1.20231004180819.el9ost.noarch		—
Unresolved product id: 9Base-RHOS-17.1:openstack-swift-object-0:2.27.1-17.1.20231004180819.el9ost.noarch		—
Unresolved product id: 9Base-RHOS-17.1:openstack-swift-proxy-0:2.27.1-17.1.20231004180819.el9ost.noarch		—
Unresolved product id: 9Base-RHOS-17.1:openstack-tempest-1:33.0.0-17.1.20260406141650.1580f6f.el9ost.noarch		—
Unresolved product id: 9Base-RHOS-17.1:openstack-tempest-1:33.0.0-17.1.20260406141650.1580f6f.el9ost.src		—
Unresolved product id: 9Base-RHOS-17.1:openstack-tempest-all-1:33.0.0-17.1.20260406141650.1580f6f.el9ost.noarch		—
Unresolved product id: 9Base-RHOS-17.1:python3-swift-0:2.27.1-17.1.20231004180819.el9ost.noarch		—
Unresolved product id: 9Base-RHOS-17.1:python3-tempest-1:33.0.0-17.1.20260406141650.1580f6f.el9ost.noarch		—
Unresolved product id: 9Base-RHOS-17.1:python3-tempest-tests-1:33.0.0-17.1.20260406141650.1580f6f.el9ost.noarch		—

Threats

Impact Low

References

18 references

URL	Category
https://access.redhat.com/errata/RHSA-2026:28044	self
https://access.redhat.com/security/updates/classi…	external
https://bugzilla.redhat.com/show_bug.cgi?id=2415344	external
https://bugzilla.redhat.com/show_bug.cgi?id=2451037	external
https://security.access.redhat.com/data/csaf/v2/a…	self
https://access.redhat.com/security/cve/CVE-2025-65073	self
https://bugzilla.redhat.com/show_bug.cgi?id=2415344	external
https://www.cve.org/CVERecord?id=CVE-2025-65073	external
https://nvd.nist.gov/vuln/detail/CVE-2025-65073	external
https://security.openstack.org/ossa/OSSA-2025-002.html	external
https://www.openwall.com/lists/oss-security/2025/…	external
https://access.redhat.com/security/cve/CVE-2026-33551	self
https://bugzilla.redhat.com/show_bug.cgi?id=2451037	external
https://www.cve.org/CVERecord?id=CVE-2026-33551	external
https://nvd.nist.gov/vuln/detail/CVE-2026-33551	external
http://www.openwall.com/lists/oss-security/2026/0…	external
https://security.openstack.org/ossa/OSSA-2026-005.html	external
https://www.openwall.com/lists/oss-security/2026/…	external

Acknowledgments

Orange Cyberdefense CERT Vulnerability Intelligence Watch Team Maxence Bornecque

JSON

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          "title": "Statement"
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          "title": "Vulnerability summary"
        },
        {
          "category": "general",
          "text": "The CVSS score(s) listed for this vulnerability do not reflect the associated product\u0027s status, and are included for informational purposes to better understand the severity of this vulnerability.",
          "title": "CVSS score applicability"
        }
      ],
      "product_status": {
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            "scope": "CHANGED",
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}

CVE-2025-65073 (GCVE-0-2025-65073)

Vulnerability from cvelistv5 – Published: 2025-11-17 00:00 – Updated: 2025-11-17 23:04

Summary

OpenStack Keystone before 26.0.1, 27.0.0, and 28.0.0 allows a /v3/ec2tokens or /v3/s3tokens request with a valid AWS Signature to provide Keystone authorization.

Severity

7.5 (High)


                        
                          CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:L/I:H/A:N

SSVC

Exploitation: none Automatable: no Technical Impact: partial

CISA Coordinator (v2.0.3)

CWE

CWE-863 - Incorrect Authorization

Assigner

mitre

References

2 references

URL	Tags
https://www.openwall.com/lists/oss-security/2025/…
http://www.openwall.com/lists/oss-security/2025/11/17/6

Impacted products

1 product

Vendor	Product	Version
OpenStack	Keystone	Affected: 0 , < 26.0.1 (custom) Affected: 27.0.0 (custom) Affected: 28.0.0 (custom)

Show details on NVD website

JSON

To clipboard

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CVE-2026-33551 (GCVE-0-2026-33551)

Vulnerability from cvelistv5 – Published: 2026-04-10 00:00 – Updated: 2026-04-10 13:50

Summary

An issue was discovered in OpenStack Keystone 14 through 26 before 26.1.1, 27.0.0, 28.0.0, and 29.0.0. Restricted application credentials can create EC2 credentials. By using a restricted application credential to call the EC2 credential creation API, an authenticated user with only a reader role may obtain an EC2/S3 credential that carries the full set of the parent user's S3 permissions, effectively bypassing the role restrictions imposed on the application credential. Only deployments that use restricted application credentials in combination with the EC2/S3 compatibility API (swift3 / s3api) are affected.

Severity

3.5 (Low)


                        
                          CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:C/C:N/I:L/A:N

SSVC

Exploitation: poc Automatable: no Technical Impact: partial

CISA Coordinator (v2.0.3)

CWE

CWE-863 - Incorrect Authorization

Assigner

mitre

References

3 references

URL	Tags
https://bugs.launchpad.net/keystone/+bug/2142138
https://security.openstack.org/ossa/OSSA-2026-005.html
http://www.openwall.com/lists/oss-security/2026/0…

Impacted products

1 product

Vendor	Product	Version
OpenStack	Keystone	Affected: 14.0.0 , < 26.1.1 (semver) Affected: 27.0.0 (semver) Affected: 28.0.0 (semver) Affected: 29.0.0 (semver)

Show details on NVD website

JSON

To clipboard

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Sightings

Author	Source	Type	Date	Other

Nomenclature

Seen: The vulnerability was mentioned, discussed, or observed by the user.
Confirmed: The vulnerability has been validated from an analyst's perspective.
Published Proof of Concept: A public proof of concept is available for this vulnerability.
Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
Not confirmed: The user expressed doubt about the validity of the vulnerability.
Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.

Detection rules are retrieved from Rulezet.

Action not permitted

RHSA-2026:28044

CVE-2025-65073 (GCVE-0-2025-65073)

CVE-2026-33551 (GCVE-0-2026-33551)

Tags

Sightings

Nomenclature