CVE-2026-128424

Kroxylicious-authorizer-acl: kroxylicious: acl rule file regex escapes are stripped, broadening 'matching' authorization rules

A flaw was found in Kroxylicious. The ACL authorizer's rules-file parser unquotes `matching /…/` regular-expression literals using the string unquoting rules, which strips every backslash escape. As a result, an allow rule such as `matching /orders\.v1/` is compiled as the regex `orders.v1`, which also matches unintended names such as `ordersXv1`, and character classes such as `\d` and `\w` lose their special meaning. Allow rules written with regex escapes can therefore apply to more resources than the author intended. Depending on the ACL configuration, this may allow an authenticated Kafka client to access a resource (such as read or write a topic) that should have been denied.

CVSS 3.1 · 5.3 Medium EPSS < 1% KEV · Not listed

Vendors

Redhat

Products

Amq Streams

CVE-2026-127099

Sssd: sssd: stack buffer overflow during rsa certificate-to-ssh key conversion

A flaw was found in SSSD's conversion of X.509 certificate RSA public keys to SSH keys. Missing size checks before copying RSA components into fixed-size stack buffers can cause a stack buffer overflow. An attacker able to supply a certificate with oversized RSA components that passes the configured certificate checks can cause denial of service and corrupt SSH responder memory.

CVSS 3.1 · 5.9 Medium EPSS < 1% KEV · Not listed

Vendors

Red Hat Redhat Sssd

Products

Enterprise Linux Enterprise Linux Openshift and 3 more

CVE-2026-18379

Yggdrasil-worker-package-manager: yggdrasil-worker-package-manager: path traversal via unsanitized repo name in addrepo/removerepo

A flaw was found in yggdrasil-worker-package-manager. An authenticated attacker can exploit this issue to achieve arbitrary file modification or potential privilege escalation. The vulnerability exists because repository management operations fail to sanitize directory traversal sequences (such as '../') within repository names. By supplying a crafted repository name, an attacker can manipulate the root-level worker process into creating or deleting files outside the intended directory, compromising host system integrity.

CVSS 3.1 · 8.8 High EPSS < 1% KEV · Not listed

Vendors

Red Hat Redhat

Products

Enterprise Linux Enterprise Linux

CVE-2026-126644

Ansible.posix: authorized_key module follows a parent-directory symlink allowing writes outside the intended directory

A link-following flaw was found in the authorized_key module of the ansible.posix collection, residual to the fix for CVE-2026-11837. That fix guards only the final path component (os.chown with follow_symlinks=False and O_NOFOLLOW in _safe_open_write()). When an unprivileged local user replaces their ~/.ssh directory with a symlink to a directory they do not own, and an operator subsequently runs the authorized_key task as root (a common provisioning pattern), the module resolves its path operations through the symlink: atomic_move() writes the temporary file in the symlink target and renames it to <target>/authorized_keys, creating or overwriting a file in the attacker-chosen directory, and os.chmod(sshdir, 0o700) follows the symlink and changes the target directory's permissions. The written file is chowned to the unprivileged user, so this is not a privilege escalation, but it allows an attacker to create or overwrite files (for example in /etc/apt/apt.conf.d/, which APT reads regardless of file ownership) to cause integrity and availability impacts.

CVSS 3.1 · 3.9 Low EPSS < 1% KEV · Not listed

Vendors

Red Hat Redhat

Products

Enterprise Linux Enterprise Linux

CVE-2026-121876

Sandboxed-containers: kernel: systemd-gpt-auto-generator: guest data leakage in confidential computing (sandboxed containers)

A flaw was found in the interaction between systemd-gpt-auto-generator and confidential computing guest VM images in OpenShift Sandboxed Containers (confidential peer pods). systemd-gpt-auto-generator automatically discovers and mounts GPT partitions by type GUID at boot with no user confirmation. In the confidential computing threat model, where the host/hypervisor is the adversary, a malicious host can inject partitions into the guest's virtual disk. Most critically, injecting a swap partition causes the guest kernel to page out TEE-encrypted memory to a host-controlled block device, breaking the confidentiality guarantee of the hardware TEE (AMD SEV-SNP, Intel TDX). The PodVM images use a GPT-partitioned disk with dm-verity on the root partition. However, the roothash= kernel parameter only disables root auto-discovery — non-root partitions (swap, /home, /var, /srv, /var/tmp) are still auto-discovered and mounted. The generator is shipped unmasked in the RHEL systemd-udev subpackage, and no kernel command line parameter in the measured UKI addon disables it. Additionally, the PodVM measurement script captures PCRs 3, 9, 11, and 12, but not PCR 5 (GPT partition table), so partition table modifications are not detected by remote attestation.

CVSS 3.1 · 7.9 High EPSS < 1% KEV · Not listed

Vendors

Red Hat Redhat

Products

Enterprise Linux Enterprise Linux Openshift and 2 more

CVE-2026-115455

Gcc: stack overflow in std::bitset on libstdc++

A flaw was found in GCC libstdc++. When an application extracts data into a bitset from a wide-character stream, internal stack memory allocation fails to properly account for character size and alignment. An attacker capable of supplying crafted input to an affected application could trigger a stack-based buffer overflow leading denial of service (DoS).

CVSS 3.1 · 6.5 Medium EPSS < 1% KEV · Not listed

Vendors

Gcc Red Hat Redhat

Products

Gcc Enterprise Linux Enterprise Linux and 5 more

CVE-2026-124745

Busybox: tar deferred hardlink target resolved through a deferred symlink escapes the extraction directory

A flaw was found in BusyBox. When extracting an archive, the tar utility improperly resolves deferred hardlink targets across symbolic links pointing outside the intended extraction directory. An attacker could provide a specially crafted archive that links to sensitive files outside the extraction tree, allowing subsequent extraction operations to overwrite arbitrary files on the system.

CVSS 3.1 · 6.3 Medium EPSS < 1% KEV · Not listed

Vendors

Busybox Red Hat Redhat

Products

Busybox Enterprise Linux Enterprise Linux and 3 more

CVE-2026-127029

Freeradius: stack-based buffer overflow via unbounded eap-sim identity length

A flaw was found in freeradius's Extensible Authentication Protocol Method for Subscriber Identity Module (EAP-SIM) module. When handling authentication requests, the server copies a client-supplied identity into an internal structure without properly checking its length against a fixed-size buffer. An unauthenticated remote attacker can exploit this issue by sending specially crafted EAP-SIM messages, triggering a stack buffer overflow that crashes the service and results in a Denial of Service (DoS).

CVSS 3.1 · 7.5 High EPSS < 1% KEV · Not listed

Vendors

Freeradius Red Hat Redhat

Products

Freeradius Enterprise Linux Enterprise Linux and 1 more

CVE-2026-127100

Sssd: sssd: local denial of service through unchecked oauth2 json code type in pam responder

A flaw was found in SSSD's PAM responder on builds with the JSON PAM extension enabled. A local attacker can submit a crafted authentication request containing a non-string OAuth2 code value. Missing JSON type validation leads to a NULL pointer dereference, terminating the PAM responder and disrupting SSSD-backed authentication.

CVSS 3.1 · 5.5 Medium EPSS < 1% KEV · Not listed

Vendors

Red Hat Redhat Sssd

Products

Enterprise Linux Enterprise Linux Openshift and 3 more

CVE-2026-126831

Cpio: cpio: stack-based buffer overflow in write_out_tar_header() with long usernames/groupnames

A flaw was found in cpio. A local user can cause a Denial of Service (DoS) by triggering a stack-based buffer overflow when creating archives in tar or ustar formats. When archiving files owned by users or groups with names exceeding 32 characters, cpio copies these names into fixed-size memory without verifying their length. This unbounded copy corrupts stack memory and causes the application to crash.

CVSS 3.1 · 5.5 Medium EPSS < 1% KEV · Not listed

Vendors

Red Hat Redhat

Products

Enterprise Linux Enterprise Linux Hardened Images and 2 more

CVE-2026-90959

Pulpcore: pulpcore: file:// scheme allowlist bypass in content upload file_url field enables arbitrary file read and pulp container registry signing key theft

A path traversal vulnerability was found in pulpcore. The content upload API accepts a 'file_url' parameter that allows users with file repository privileges to specify a local file URL for Pulp to download and store. A URL scheme validation check uses a string prefix comparison that only rejects URLs beginning with 'file://', but Python's URL parser recognizes the 'file:' scheme without double slashes, creating a mismatch between what is validated and what is dispatched to the file downloader. An authenticated user with low-privilege repository permissions can supply a specially crafted URL using relative path traversal sequences to read any file accessible to the Pulp server process. In deployments that include Pulp Container, successful exploitation allows an attacker to read the container registry token signing private key and forge bearer tokens, granting unauthorized access to all private container repositories in the affected registry.

CVSS 3.1 · 8.1 High EPSS < 1% KEV · Not listed

Vendors

Redhat

Products

Ansible Automation Platform Ansible Automation Platform Developer Ansible Automation Platform Inside and 7 more

CVE-2026-86322

Foreman: authorization flaw in the foreman::controller::useraware#find_user handling used by api::v2::personalaccesstokenscontroller

A flaw was found in Foreman’s Api::V2::PersonalAccessTokensController, where Foreman::Controller::UserAware#find_user resolves the target account using User.find(params[:user_id]) without applying the required parent-user authorization check. An attacker with the create_personal_access_tokens permission can therefore invoke POST /api/v2/users/:user_id/personal_access_tokens with another user’s ID and create a Personal Access Token on their behalf. The resulting plaintext token is returned in the API response, while PersonalAccessToken#check_permissions_after_save only validates create_personal_access_tokens on the token and does not enforce edit_users authorization on the target user. The attacker can then use the forged token to authenticate as the victim, potentially resulting in complete account takeover, including administrator accounts.

CVSS 3.1 · 8.8 High EPSS < 1% KEV · Not listed

Vendors

Redhat

Products

Satellite Satellite Capsule Satellite Maintenance and 1 more

CVE-2026-42784

Sequoia-openpgp: sequoia-openpgp: cryptographic integrity compromise via key flag confusion

A flaw was found in sequoia-openpgp. The library incorrectly infers key flags for older certificates when a key flags subpacket is missing, leading to a discrepancy in how key capabilities are viewed. This key flag confusion allows an attacker to bypass the back-signature check. Consequently, an attacker can illegitimately bind an arbitrary subkey to their own certificate and forge signatures, completely compromising cryptographic integrity.

CVSS 3.1 · 7.4 High EPSS < 1% KEV · Not listed

Vendors

Red Hat Redhat Sequoia-pgp

Products

Enterprise Linux Ansible Automation Platform Ansible Automation Platform Developer and 15 more

CVE-2026-111456

Candlepin: consumer certificate can register systems in another organization

A missing authorization check has been found in ConsumerResource.setupOwner() function of consumer registration module in the Candlepin package. The registration method checks permission to create a consumer only when the caller is a user. A consumer that authenticates with its identity certificate does not go through that check. A low-privileged network attacker or user who has a valid consumer certificate for one organization can register a new consumer in a different organization by supplying that organization's key. The response includes an identity certificate for the new consumer. With that certificate, the attacker can view the target organization's subscription pools. When the organization is not using simple content access, the attacker can attach that organization's entitlements to the new consumer.

CVSS 3.1 · 7.1 High EPSS < 1% KEV · Not listed

Vendors

Red Hat Redhat

Products

Red Hat Satellite 6 Satellite Satellite Capsule and 2 more

CVE-2026-107443

Foreman: foreman: api host template render discloses secrets to view_hosts users (incomplete cve-2026-96659 fix)

A flaw was found in Foreman. An authenticated user with view_hosts privileges can retrieve rendered provisioning template content for a host via the hosts template API endpoint, disclosing sensitive data such as the host root password. This is an incomplete fix of CVE-2026-96659, which hardened the web UI preview path but left the API host-template render path authorized for Viewer-level users.

CVSS 3.1 · 7.7 High EPSS < 1% KEV · Not listed

Vendors

Redhat

Products

Satellite Satellite Capsule Satellite Maintenance and 1 more

CVE-2026-107360

Rubygem-safemode: safemode: jail allow-list bypass via op-assign expressions

A flaw was found in rubygem-safemode. Compound assignment expressions in sandboxed code are evaluated without mediating method calls through the Jail allow-list. An authenticated attacker who can supply template content can invoke arbitrary no-argument methods on objects exposed to the template renderer without Jail mediation, including destructive operations such as host deletion and disclosure of non-allow-listed object state.

CVSS 3.1 · 9.6 Critical EPSS < 1% KEV · Not listed

Vendors

Redhat

Products

Satellite Satellite Capsule Satellite Maintenance and 1 more

CVE-2026-107152

Rubygem-smart_proxy_dynflow: dynflow console authorizes any client certificate the capsule ca signed

An improper authentication vulnerability has been found in the task console in the smart_proxy_dynflow package. The console accepts any client certificate signed by the capsule's certificate authority. It does not check the list of servers the capsule trusts. A low-privileged network attacker or user must already hold such a certificate. They can open the console and read job details. Those details include passwords when a job was given them. They can also cancel a running task.

CVSS 3.1 · 7.1 High EPSS < 1% KEV · Not listed

Vendors

Redhat

Products

Satellite Satellite Capsule Satellite Maintenance and 1 more

CVE-2026-106471

Candlepin: candlepin: broken object-level authorization via verifyauthorizationfilter multi-@verify hasaccess latching

A flaw was found in Candlepin. The central authorization filter incorrectly grants access when any one of multiple @Verify-annotated parameters is accessible, instead of requiring access to every verified entity. A low-privilege authenticated attacker who can access the first referenced object can bypass authorization checks on subsequent objects. When target resource identifiers are known, this can enable unauthorized disclosure of consumer information and unauthorized modification of entitlements and related subscription resources, including across organizations.

CVSS 3.1 · 8.1 High EPSS < 1% KEV · Not listed

Vendors

Red Hat Redhat

Products

Red Hat Satellite 6 Satellite Satellite Capsule and 2 more

CVE-2026-84503

Ansible-core: ansible-core: ansible.builtin.git invokes git without a `--` separator, allowing argument injection via a `-`-leading repository url (e.g. --upload-pack) -> rce

A flaw was found in ansible-core's ansible.builtin.git module. The module invokes git (ls-remote, clone, fetch) with the repository URL as a positional argument and without a "--" separator, so a repository URL that begins with a dash is interpreted by git as a command-line option. A caller that passes an attacker-controlled repository URL to the module can trigger argument injection (for example --upload-pack/--exec), resulting in arbitrary command execution on the host running the module.

CVSS 3.1 · 6.7 Medium EPSS < 1% KEV · Not listed

Vendors

Redhat

Products

Acm Ansible Automation Platform Ansible Core and 15 more

CVE-2026-107193

Foreman: api filter lookup ignores a search-limited filter permission

A flaw has been found in **permission filters** in the **foreman** package. The API loads a filter by its identifier and does not apply the search limit on the caller's permission. A low-privileged network attacker or user must already be allowed to delete filters for one role only. They can delete filters that belong to other unlocked roles. Those other roles then lose the access the deleted filters had granted.

CVSS 3.1 · 6.5 Medium EPSS < 1% KEV · Not listed

Vendors

Redhat Theforeman

Products

Satellite Satellite Capsule Satellite Maintenance and 2 more