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The highest threat from this vulnerability is to data confidentiality and 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OpenStack Keystone: Privilege escalation via chained application credential impersonation and trust 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OpenStack Keystone: Federated token rescoping allows indefinite 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Keystone: OpenStack Keystone: Unauthorized cross-project access due to improper validation in EC2 credential creation","references":[{"reference_url":"https://access.redhat.com/hydra/rest/securitydata/cve/CVE-2026-43001.json","reference_id":"","reference_type":"","scores":[{"value":"8.0","scoring_system":"cvssv3","scoring_elements":"CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:C/C:H/I:H/A:H"}],"url":"https://access.redhat.com/hydra/rest/securitydata/cve/CVE-2026-43001.json"},{"reference_url":"https://api.first.org/data/v1/epss?cve=CVE-2026-43001","reference_id":"","reference_type":"","scores":[{"value":"0.00018","scoring_system":"epss","scoring_elements":"0.04681","published_at":"2026-06-08T12:55:00Z"},{"value":"0.00018","scoring_system":"epss","scoring_elements":"0.04747","published_at":"2026-06-05T12:55:00Z"},{"value":"0.00018","scoring_system":"epss","scoring_elements":"0.04732","published_at":"2026-06-06T12:55:00Z"},{"value":"0.00018","scoring_system":"epss","scoring_elements":"0.04719","published_at":"2026-06-07T12:55:00Z"}],"url":"https://api.first.org/data/v1/epss?cve=CVE-2026-43001"},{"reference_url":"https://bugs.launchpad.net/keystone/+bug/2149775","reference_id":"","reference_type":"","scores":[{"value":"7.9","scoring_system":"cvssv3.1","scoring_elements":"CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:C/C:H/I:H/A:L"},{"value":"HIGH","scoring_system":"generic_textual","scoring_elements":""},{"value":"Track","scoring_system":"ssvc","scoring_elements":"SSVCv2/E:N/A:N/T:P/P:M/B:A/M:M/D:T/2026-05-01T13:28:01Z/"}],"url":"https://bugs.launchpad.net/keystone/+bug/2149775"},{"reference_url":"https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2026-43001","reference_id":"","reference_type":"","scores":[],"url":"https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2026-43001"},{"reference_url":"https://nvd.nist.gov/vuln/detail/CVE-2026-43001","reference_id":"","reference_type":"","scores":[{"value":"7.9","scoring_system":"cvssv3.1","scoring_elements":"CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:C/C:H/I:H/A:L"},{"value":"HIGH","scoring_system":"generic_textual","scoring_elements":""}],"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-43001"},{"reference_url":"https://review.opendev.org/c/openstack/keystone","reference_id":"","reference_type":"","scores":[{"value":"7.9","scoring_system":"cvssv3.1","scoring_elements":"CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:C/C:H/I:H/A:L"},{"value":"HIGH","scoring_system":"generic_textual","scoring_elements":""}],"url":"https://review.opendev.org/c/openstack/keystone"},{"reference_url":"https://review.opendev.org/c/openstack/keystone/+/985804","reference_id":"","reference_type":"","scores":[{"value":"7.9","scoring_system":"cvssv3.1","scoring_elements":"CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:C/C:H/I:H/A:L"},{"value":"HIGH","scoring_system":"generic_textual","scoring_elements":""},{"value":"Track","scoring_system":"ssvc","scoring_elements":"SSVCv2/E:N/A:N/T:P/P:M/B:A/M:M/D:T/2026-05-01T13:28:01Z/"}],"url":"https://review.opendev.org/c/openstack/keystone/+/985804"},{"reference_url":"https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=1135645","reference_id":"1135645","reference_type":"","scores":[],"url":"https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=1135645"},{"reference_url":"https://bugzilla.redhat.com/show_bug.cgi?id=2464305","reference_id":"2464305","reference_type":"","scores":[],"url":"https://bugzilla.redhat.com/show_bug.cgi?id=2464305"},{"reference_url":"https://github.com/advisories/GHSA-hhq2-3832-xxcv","reference_id":"GHSA-hhq2-3832-xxcv","reference_type":"","scores":[{"value":"HIGH","scoring_system":"cvssv3.1_qr","scoring_elements":""}],"url":"https://github.com/advisories/GHSA-hhq2-3832-xxcv"},{"reference_url":"https://security.openstack.org/ossa/OSSA-2026-015.html","reference_id":"OSSA-2026-015.html","reference_type":"","scores":[{"value":"7.9","scoring_system":"cvssv3.1","scoring_elements":"CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:C/C:H/I:H/A:L"},{"value":"Track","scoring_system":"ssvc","scoring_elements":"SSVCv2/E:N/A:N/T:P/P:M/B:A/M:M/D:T/2026-05-01T13:28:01Z/"}],"url":"https://security.openstack.org/ossa/OSSA-2026-015.html"}],"fixed_packages":[{"url":"http://public2.vulnerablecode.io/api/packages/196108?format=json","purl":"pkg:deb/debian/keystone@2:22.0.2-0%2Bdeb12u1","is_vulnerable":true,"affected_by_vulnerabilities":[{"vulnerability":"VCID-5ucj-ubyb-27fx"},{"vulnerability":"VCID-7b5p-zqzm-3few"},{"vulnerability":"VCID-cage-qr17-fude"},{"vulnerability":"VCID-eszc-r2p1-xkcv"},{"vulnerability":"VCID-g2mr-xac1-jue9"},{"vulnerability":"VCID-hyts-mq72-z7de"},{"vulnerability":"VCID-v6q4-3362-fyde"},{"vulnerability":"VCID-z3ub-exq4-4qgg"}],"resource_url":"http://public2.vulnerablecode.io/packages/pkg:deb/debian/keystone@2:22.0.2-0%252Bdeb12u1"},{"url":"http://public2.vulnerablecode.io/api/packages/196109?format=json","purl":"pkg:deb/debian/keystone@2:22.0.2-0%2Bdeb12u2","is_vulnerable":false,"affected_by_vulnerabilities":[],"resource_url":"http://public2.vulnerablecode.io/packages/pkg:deb/debian/keystone@2:22.0.2-0%252Bdeb12u2"},{"url":"http://public2.vulnerablecode.io/api/packages/196111?format=json","purl":"pkg:deb/debian/keystone@2:27.0.0-3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Keystone 10.x through 16.x before 16.0.2, 17.x before 17.0.1, 18.x before 18.0.1, and 19.x before 19.0.1 allows information disclosure during account locking (related to PCI DSS features). By guessing the name of an account and failing to authenticate multiple times, any unauthenticated actor could both confirm the account exists and obtain that account's corresponding UUID, which might be leveraged for other unrelated attacks. All deployments enabling security_compliance.lockout_failure_attempts are affected.","references":[{"reference_url":"https://api.first.org/data/v1/epss?cve=CVE-2021-38155","reference_id":"","reference_type":"","scores":[{"value":"0.00737","scoring_system":"epss","scoring_elements":"0.73209","published_at":"2026-06-04T12:55:00Z"},{"value":"0.00737","scoring_system":"epss","scoring_elements":"0.73246","published_at":"2026-06-05T12:55:00Z"},{"value":"0.01067","scoring_system":"epss","scoring_elements":"0.78076","published_at":"2026-06-07T12:55:00Z"},{"value":"0.01067","scoring_system":"epss","scoring_elements":"0.78085","published_at":"2026-06-06T12:55:00Z"},{"value":"0.01067","scoring_system":"epss","scoring_elements":"0.78064","published_at":"2026-06-08T12:55:00Z"}],"url":"https://api.first.org/data/v1/epss?cve=CVE-2021-38155"},{"reference_url":"https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-38155","reference_id":"","reference_type":"","scores":[],"url":"https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-38155"},{"reference_url":"https://ftp.suse.com/pub/projects/security/yaml/suse-cvss-scores.yaml","reference_id":"","reference_type":"","scores":[{"value":"7.5","scoring_system":"cvssv3.1","scoring_elements":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N"}],"url":"https://ftp.suse.com/pub/projects/security/yaml/suse-cvss-scores.yaml"},{"reference_url":"https://github.com/openstack/keystone","reference_id":"","reference_type":"","scores":[{"value":"7.5","scoring_system":"cvssv3.1","scoring_elements":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N"},{"value":"HIGH","scoring_system":"generic_textual","scoring_elements":""}],"url":"https://github.com/openstack/keystone"},{"reference_url":"https://github.com/openstack/keystone/commit/1b573ae7d1c20e0ebfbde79bbe7538a09589c75d","reference_id":"","reference_type":"","scores":[{"value":"7.5","scoring_system":"cvssv3.1","scoring_elements":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N"},{"value":"HIGH","scoring_system":"generic_textual","scoring_elements":""}],"url":"https://github.com/openstack/keystone/commit/1b573ae7d1c20e0ebfbde79bbe7538a09589c75d"},{"reference_url":"https://github.com/openstack/keystone/commit/8ab4eb27be4c13c9bab2b3ea700f00a190521bf8","reference_id":"","reference_type":"","scores":[{"value":"7.5","scoring_system":"cvssv3.1","scoring_elements":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N"},{"value":"HIGH","scoring_system":"generic_textual","scoring_elements":""}],"url":"https://github.com/openstack/keystone/commit/8ab4eb27be4c13c9bab2b3ea700f00a190521bf8"},{"reference_url":"https://github.com/openstack/keystone/commit/ac2631ae33445877094cdae796fbcdce8833a626","reference_id":"","reference_type":"","scores":[{"value":"7.5","scoring_system":"cvssv3.1","scoring_elements":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N"},{"value":"HIGH","scoring_system":"generic_textual","scoring_elements":""}],"url":"https://github.com/openstack/keystone/commit/ac2631ae33445877094cdae796fbcdce8833a626"},{"reference_url":"https://launchpad.net/bugs/1688137","reference_id":"","reference_type":"","scores":[{"value":"7.5","scoring_system":"cvssv3.1","scoring_elements":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N"},{"value":"HIGH","scoring_system":"generic_textual","scoring_elements":""}],"url":"https://launchpad.net/bugs/1688137"},{"reference_url":"https://lists.debian.org/debian-lts-announce/2024/01/msg00007.html","reference_id":"","reference_type":"","scores":[{"value":"7.5","scoring_system":"cvssv3.1","scoring_elements":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N"},{"value":"HIGH","scoring_system":"generic_textual","scoring_elements":""}],"url":"https://lists.debian.org/debian-lts-announce/2024/01/msg00007.html"},{"reference_url":"https://nvd.nist.gov/vuln/detail/CVE-2021-38155","reference_id":"","reference_type":"","scores":[{"value":"7.5","scoring_system":"cvssv3.1","scoring_elements":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N"},{"value":"HIGH","scoring_system":"generic_textual","scoring_elements":""}],"url":"https://nvd.nist.gov/vuln/detail/CVE-2021-38155"},{"reference_url":"https://security.openstack.org/ossa/OSSA-2021-003.html","reference_id":"","reference_type":"","scores":[{"value":"7.5","scoring_system":"cvssv3.1","scoring_elements":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N"},{"value":"HIGH","scoring_system":"generic_textual","scoring_elements":""}],"url":"https://security.openstack.org/ossa/OSSA-2021-003.html"},{"reference_url":"http://www.openwall.com/lists/oss-security/2021/08/10/5","reference_id":"","reference_type":"","scores":[{"value":"7.5","scoring_system":"cvssv3.1","scoring_elements":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N"},{"value":"HIGH","scoring_system":"generic_textual","scoring_elements":""}],"url":"http://www.openwall.com/lists/oss-security/2021/08/10/5"},{"reference_url":"https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=992070","reference_id":"992070","reference_type":"","scores":[],"url":"https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=992070"},{"reference_url":"https://github.com/advisori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issue was discovered in OpenStack Keystone before 15.0.1, and 16.0.0. Any user authenticated within a limited scope (trust/oauth/application credential) can create an EC2 credential with an escalated permission, such as obtaining admin while the user is on a limited viewer role. This potentially allows a malicious user to act as the admin on a project another user has the admin role on, which can effectively grant that user global admin 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Keystone 15.0.0 and 16.0.0 is affected by Data Leakage in the list credentials API. Any user with a role on a project is able to list any credentials with the /v3/credentials API when enforce_scope is false. Users with a role on a project are able to view any other users' credentials, which could (for example) leak sign-on information for Time-based One Time Passwords (TOTP). Deployments with enforce_scope set to false are affected. 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issue was discovered in OpenStack Keystone before 15.0.1, and 16.0.0. 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An attacker can sniff the Authorization header, and then use it to reissue an OpenStack token an unlimited number of 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issue was discovered in OpenStack Keystone before 15.0.1, and 16.0.0. The list of roles provided for an OAuth1 access token is silently ignored. Thus, when an access token is used to request a keystone token, the keystone token contains every role assignment the creator had for the project. This results in the provided keystone token having more role assignments than the creator intended, possibly giving unintended escalated access.","references":[{"reference_url":"https://access.redhat.com/hydra/rest/securitydata/cve/CVE-2020-12690.json","reference_id":"","reference_type":"","scores":[{"value":"8.8","scoring_system":"cvssv3","scoring_elements":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H"}],"url":"https://access.redhat.com/hydra/rest/securitydata/cve/CVE-2020-12690.json"},{"reference_url":"https://api.first.org/data/v1/epss?cve=CVE-2020-12690","reference_id":"","reference_type":"","scores":[{"value":"0.00817","scoring_system":"epss","scoring_elements":"0.74703","published_at":"2026-06-08T12:55:00Z"},{"value":"0.00817","scoring_system":"epss","scoring_elements":"0.7472","published_at":"2026-06-07T12:55:00Z"},{"value":"0.00817","scoring_system":"epss","scoring_elements":"0.74696","published_at":"2026-06-04T12:55:00Z"},{"value":"0.00817","scoring_system":"epss","scoring_elements":"0.74727","published_at":"2026-06-05T12:55:00Z"},{"value":"0.00817","scoring_system":"epss","scoring_elements":"0.74732","published_at":"2026-06-06T12:55:00Z"}],"url":"https://api.first.org/data/v1/epss?cve=CVE-2020-12690"},{"reference_url":"https://bugs.launchpad.net/keystone/+bug/1873290","reference_id":"","reference_type":"","scores":[{"value":"8.8","scoring_system":"cvssv3.1","scoring_elements":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H"},{"value":"8.7","scoring_system":"cvssv4","scoring_elements":"CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N"},{"value":"HIGH","scoring_system":"generic_textual","scoring_elements":""}],"url":"https://bugs.launchpad.net/keystone/+bug/1873290"},{"reference_url":"https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-12689","reference_id":"","reference_type":"","scores":[],"url":"https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-12689"},{"reference_url":"https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-12690","reference_id":"","reference_type":"","scores":[],"url":"https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-12690"},{"reference_url":"https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-12691","reference_id":"","reference_type":"","scores":[],"url":"https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-12691"},{"reference_url":"https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-12692","reference_id":"","reference_type":"","scores":[],"url":"https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-12692"},{"reference_url":"https://ftp.suse.com/pub/projects/security/yaml/suse-cvss-scores.yaml","reference_id":"","reference_type":"","scores":[{"value":"5.3","scoring_system":"cvssv3.1","scoring_elements":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L"}],"url":"https://ftp.suse.com/pub/projects/security/yaml/suse-cvss-scores.yaml"},{"reference_url":"https://github.com/advisories/GHSA-6m8p-x4qw-gh5j","reference_id":"","reference_type":"","scores":[{"value":"8.8","scoring_system":"cvssv3.1","scoring_elements":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H"},{"value":"HIGH","scoring_system":"cvssv3.1_qr","scoring_elements":""},{"value":"8.7","scoring_system":"cvssv4","scoring_elements":"CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N"},{"value":"HIGH","scoring_system":"generic_textual","scoring_elements":""}],"url":"https://github.com/advisories/GHSA-6m8p-x4qw-gh5j"},{"reference_url":"https://github.com/openstack/keystone","reference_id":"","reference_type":"","scores":[{"value":"8.8","scoring_system":"cvssv3.1","scoring_elements":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H"},{"value":"8.7","scoring_system":"cvssv4","scoring_elements":"CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N"},{"value":"HIGH","scoring_system":"generic_textual","scoring_elements":""}],"url":"https://github.com/openstack/keystone"},{"reference_url":"https://github.com/pypa/advisory-database/tree/main/vulns/keystone/PYSEC-2020-54.yaml","reference_id":"","reference_type":"","scores":[{"value":"8.8","scoring_system":"cvssv3.1","scoring_elements":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H"},{"value":"8.7","scoring_system":"cvssv4","scoring_elements":"CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N"},{"value":"HIGH","scoring_system":"generic_textual","scoring_elements":""}],"url":"https://github.com/pypa/advisory-database/tree/main/vulns/keystone/PYSEC-2020-54.yaml"},{"reference_url":"https://lists.apache.org/thread.html/re4ffc55cd2f1b55a26e07c83b3c22c3fe4bae6054d000a57fb48d8c2@%3Ccommits.druid.apache.org%3E","reference_id":"","reference_type":"","scores":[{"value":"8.8","scoring_system":"cvssv3.1","scoring_elements":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H"},{"value":"8.7","scoring_system":"cvssv4","scoring_elements":"CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N"},{"value":"HIGH","scoring_system":"generic_textual","scoring_elements":""}],"url":"https://lists.apache.org/thread.html/re4ffc55cd2f1b55a26e07c83b3c22c3fe4bae6054d000a57fb48d8c2@%3Ccommits.druid.apache.org%3E"},{"reference_url":"https://security.openstack.org/ossa/OSSA-202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