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CVE-2026-79705

Podman: buildah: buildah/copier: directory escape via crafted tar symlinks when used outside buildah by non-root callers

A flaw was found in the buildah/copier Go package. When used outside of Buildah by a non-root caller, a crafted tar archive containing malicious symlinks can escape the target extraction directory and create files outside the intended destination. Buildah itself uses chroot hardening and is not affected.

CVSS 3.1 · 4.5 Medium EPSS < 1% KEV · Not listed
Vendors
Red Hat Redhat
Products
Enterprise Linux Red Hat Quay 3 Ansible Automation Platform and 12 more
CVE-2026-79699

Podman: buildah: skopeo: containers/storage: malicious tar whiteout header allows replacement of extraction destination directory

A flaw was found in the containers/storage library. A crafted tar archive containing a malicious whiteout header (e.g. victim/.wh.) can cause the extraction destination directory to be replaced with an arbitrary file when processed by storage/pkg/archive.UnpackLayer, ApplyLayer, or ApplyUncompressedLayer.

CVSS 3.1 · 4.4 Medium EPSS < 1% KEV · Not listed
Vendors
Red Hat Redhat
Products
Enterprise Linux Red Hat Quay 3 Ansible Automation Platform and 12 more
CVE-2026-109194

Quay: build trigger uuid idor in quay api

A flaw was found in Red Hat Quay. The build trigger management application programming interface (API) fails to verify whether a requested trigger belongs to the specified repository. An authenticated user with administrative access to any repository can view, modify, or permanently delete build triggers and associated write tokens of another repository if they know the victim trigger's universally unique identifier (UUID).

CVSS 3.1 · 6.4 Medium EPSS < 1% KEV · Not listed
Vendors
Red Hat Redhat
Products
Red Hat Quay 3 Quay Red Hat Quay 3
CVE-2026-85471

Quay: quay: webhook notification ssrf -- hostname-string blocklist trivially bypassable

A flaw was found in Quay. An authenticated repository administrator could bypass the hostname blacklist in webhook notifications, leading to a Server-Side Request Forgery (SSRF) vulnerability. This allows the Quay application to be tricked into sending requests to internal network resources, such as cloud metadata services or other services within the cluster. Consequently, this could lead to the disclosure of sensitive information from these internal services.

CVSS 3.1 · 6.4 Medium EPSS < 1% KEV · Not listed
Vendors
Red Hat Redhat
Products
Red Hat Quay 3 Mirror Registry Mirror Registry For Red Hat Openshift and 1 more
CVE-2026-109195

Quay: repository auto-prune policy uuid idor in quay api

A flaw was found in Quay. An authenticated attacker can access repository auto-prune configurations from other namespaces, leading to unauthorized information disclosure. This issue occurs because the application does not properly enforce namespace scoping when retrieving policy details by repository name and policy identifier. To exploit the vulnerability, the attacker must manage a repository sharing the target's name and know the target policy's unique identifier.

CVSS 3.1 · 3.1 Low EPSS < 1% KEV · Not listed
Vendors
Red Hat Redhat
Products
Red Hat Quay 3 Quay
CVE-2026-102295

Quay: quay: dom-based cross-site scripting via oauth local callback format=json parameter

A flaw was found in Quay. A cross-site scripting (XSS) vulnerability in the OAuth callback handler allows a remote attacker to execute arbitrary JavaScript code within a user's browser session. By tricking a logged-in user into visiting a specially crafted link, an attacker can exploit improper input sanitization to run client-side scripts in the application context. Successful exploitation could allow the attacker to compromise the user's session, access sensitive registry information, or perform unauthorized actions on their behalf.

CVSS 3.1 · 5.4 Medium EPSS < 1% KEV · Not listed
Vendors
Red Hat Redhat
Products
Red Hat Quay 3 Quay
CVE-2026-102576

Quay: quay: dom-based cross-site scripting via unvalidated redirect_url on signin page

A flaw was found in Quay. A remote attacker could trick a user into logging in through a crafted link, resulting in cross-site scripting (XSS). Because the application does not validate the redirect destination before navigating, this flaw allows the execution of arbitrary script in the context of the victim's authenticated browser session. Successful exploitation requires the target Quay deployment to use direct database authentication and the victim to complete login through the malicious URL.

CVSS 3.1 · 4.2 Medium EPSS < 1% KEV · Not listed
Vendors
Red Hat Redhat
Products
Red Hat Quay 3 Quay
CVE-2026-74242

Quay: repository notification uuid idor in quay api

A flaw was found in Red Hat Quay. An administrator of any repository, by knowing or guessing a target notification's Universally Unique Identifier (UUID), can read the notification configuration, including sensitive details like webhook URLs, Slack tokens, and email addresses. This vulnerability also allows them to trigger test notifications for another repository. This could lead to unauthorized information disclosure and potential misuse of notification services.

CVSS 3.1 · 5.3 Medium EPSS < 1% KEV · Not listed
Vendors
Red Hat Redhat
Products
Red Hat Quay 3 Openshift Update Service Quay