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CVE-2026-120830

Libslirp: libslirp: out-of-bounds heap read in icmp_forward_error() leading to information disclosure

A flaw was found in libslirp in icmp_forward_error(). When building an ICMP error response, the length of the quoted original IPv4 packet was taken from the IP header without clamping it to the actual buffer length. A truncated or malformed packet could cause an out-of-bounds heap read, leaking host memory into the ICMP error packet returned to a guest or container.

CVSS 3.1 · 7.4 High EPSS < 1% KEV · Not listed
Vendors
Redhat
Products
Enterprise Linux Openshift
CVE-2026-18942

Feast-operator: feast: feast apply cronjob runs user python with feature-server sa — tenant code to sa token escalation

A flaw was found in the Feast operator. A malicious tenant could inject arbitrary code into their feature repository. This code would be executed by an automated process with elevated privileges, allowing the tenant to steal sensitive credentials. This could lead to a direct escalation of privileges, granting the tenant administrative control over the Kubernetes cluster.

CVSS 3.1 · 5.5 Medium EPSS < 1% KEV · Not listed
Vendors
Red Hat Redhat
Products
Red Hat Openshift Ai (rhoai) Openshift Ai
CVE-2026-83495

Trainer: trainer: trainjob env passthrough enables valuefrom.secretkeyref injection for namespace secret exfiltration

A flaw was found in the Trainer v2 TrainJob API. A user with permissions to create TrainJobs can exploit this by injecting `valueFrom.secretKeyRef` into environment variable definitions. This allows them to read and exfiltrate sensitive information (secrets) from the namespace, leading to a privilege escalation. This occurs when the TrainJob Role-Based Access Control (RBAC) is broader than the Secret read RBAC.

CVSS n/a EPSS < 1% KEV · Not listed
Vendors
Red Hat Redhat
Products
Red Hat Openshift Ai (rhoai) Openshift Ai
CVE-2024-2905

Rpm-ostree: world-readable /etc/shadow file

A security vulnerability has been discovered within rpm-ostree, pertaining to the /etc/shadow file in default builds having the world-readable bit enabled. This issue arises from the default permissions being set at a higher level than recommended, potentially exposing sensitive authentication data to unauthorized access.

CVSS 3.1 · 6.2 Medium EPSS < 1% KEV · Not listed
Vendors
Redhat
Products
Enterprise Linux Openshift Rhel Eus
CVE-2026-75939

Openshift/oc-mirror: release signature verification: openpgp signatureerror checked before signed body is consumed

A flaw was found in openshift/oc-mirror. The tool incorrectly verifies PGP (Pretty Good Privacy) release image signatures by checking for signature errors before the entire signed body is processed, leading to a bypass of the signature verification. A remote attacker, by intercepting or manipulating network traffic to the signature endpoint, could exploit this to craft a PGP message with a valid Red Hat release key ID but a forged signature. This enables the `oc-mirror` tool to accept and mirror a malicious release payload into a disconnected registry, potentially compromising the integrity of software deployments.

CVSS 3.1 · 7.4 High EPSS < 1% KEV · Not listed
Vendors
Redhat
Products
Openshift Openshift Container Platform
CVE-2024-12797

RFC7250 handshakes with unauthenticated servers don't abort as expected

Issue summary: Clients using RFC7250 Raw Public Keys (RPKs) to authenticate a server may fail to notice that the server was not authenticated, because handshakes don't abort as expected when the SSL_VERIFY_PEER verification mode is set. Impact summary: TLS and DTLS connections using raw public keys may be vulnerable to man-in-middle attacks when server authentication failure is not detected by clients. RPKs are disabled by default in both TLS clients and TLS servers. The issue only arises when TLS clients explicitly enable RPK use by the server, and the server, likewise, enables sending of an RPK instead of an X.509 certificate chain. The affected clients are those that then rely on the handshake to fail when the server's RPK fails to match one of the expected public keys, by setting the verification mode to SSL_VERIFY_PEER. Clients that enable server-side raw public keys can still find out that raw public key verification failed by calling SSL_get_verify_result(), and those that do, and take appropriate action, are not affected. This issue was introduced in the initial implementation of RPK support in OpenSSL 3.2. The FIPS modules in 3.4, 3.3, 3.2, 3.1 and 3.0 are not affected by this issue.

CVSS 3.1 · 7.4 High EPSS 1.9% KEV · Not listed
Vendors
Netapp Openssl Redhat
Products
Bootstrap Os Brocade Fabric Operating System H300s and 23 more
CVE-2026-83493

Distributed-workloads: github actions pinned by mutable tag/branch, including third-party snyk/actions/setup@master

A flaw was found in distributed-workloads. A remote attacker could exploit a vulnerability in the pull_request_target workflow by submitting a specially crafted pull request. This workflow processes untrusted code from the pull request author while operating with the base repository's sensitive secrets, such as the SNYK_TOKEN, and its default write token. Consequently, an attacker could exfiltrate these secrets, leading to unauthorized access to the Snyk integration and potential control over the repository.

CVSS 3.1 · 9.1 Critical EPSS < 1% KEV · Not listed
Vendors
Red Hat Redhat
Products
Red Hat Openshift Ai (rhoai) Openshift Ai
CVE-2024-6409

Openssh: possible remote code execution due to a race condition in signal handling affecting red hat enterprise linux 9

A race condition vulnerability was discovered in how signals are handled by OpenSSH's server (sshd). If a remote attacker does not authenticate within a set time period, then sshd's SIGALRM handler is called asynchronously. However, this signal handler calls various functions that are not async-signal-safe, for example, syslog(). As a consequence of a successful attack, in the worst case scenario, an attacker may be able to perform a remote code execution (RCE) as an unprivileged user running the sshd server.

CVSS 3.1 · 7 High EPSS 27.9% KEV · Not listed
Vendors
Redhat
Products
Enterprise Linux Openshift Rhel E4s and 2 more
CVE-2024-6387

Openssh: regresshion - race condition in ssh allows rce/dos

A security regression (CVE-2006-5051) was discovered in OpenSSH's server (sshd). There is a race condition which can lead sshd to handle some signals in an unsafe manner. An unauthenticated, remote attacker may be able to trigger it by failing to authenticate within a set time period.

CVSS 3.1 · 8.1 High EPSS 99.5% KEV · Not listed
Vendors
Almalinux Amazon Apple and 10 more
Products
Almalinux Amazon Linux Macos and 83 more
CVE-2026-93009

Dnsmasq: dnsmasq: heap out-of-bounds read in dhcpv6 option 39 fqdn decoder

A flaw was found in dnsmasq. The DHCPv6 client hostname parser can read one byte past the end of a crafted FQDN option because it checks the next label length before confirming the pointer is still inside the option. An attacker on the local network can trigger this with a single DHCPv6 packet. The extra byte is not returned to the client or logged, and no crash has been demonstrated.

CVSS 3.1 · 4.3 Medium EPSS < 1% KEV · Not listed
Vendors
Dnsmasq Red Hat Redhat
Products
Dnsmasq Enterprise Linux Ceph Storage and 6 more
CVE-2026-93010

Dnsmasq: dnsmasq: --leasequery without address argument applies no source address check

A flaw was found in dnsmasq. When DHCP leasequery is enabled without listing allowed source addresses, the server does not check who sent the query. A host on the local network can request DHCP lease records and learn assigned addresses, MAC addresses, hostnames, and related lease metadata. The feature is off unless an administrator turns it on.

CVSS 3.1 · 4.3 Medium EPSS < 1% KEV · Not listed
Vendors
Dnsmasq Red Hat Redhat
Products
Dnsmasq Enterprise Linux Ceph Storage and 6 more
CVE-2026-91142

Cockpit: cockpit: unauthorized modification of login records via integer overflow

A flaw was found in Cockpit. An authenticated local user with a large user identifier (UID) can cause unauthorized modification and disclosure of login records. On 32-bit systems, an integer overflow during session accounting allows the user's login process to read or overwrite the legacy log entries of other accounts.

CVSS 3.1 · 3.6 Low EPSS < 1% KEV · Not listed
Vendors
Redhat
Products
Enterprise Linux Openshift Dev Spaces Openshift Devspaces and 1 more
CVE-2026-90463

Sssd: local oob read in nss service request parsers (`sss_nss_protocol_parse_svc_name` / `sss_nss_protocol_parse_svc_port`)

A flaw was found in the sssd NSS responder. This input validation vulnerability allows a local attacker, by sending specially crafted service lookup requests to the NSS responder's UNIX socket, to cause an out-of-bounds read. This out-of-bounds read may lead to a denial of service (DoS) by crashing the NSS responder process. While unprivileged local clients can typically reach the socket, there is no evidence of privilege escalation or reliable data disclosure.

CVSS 3.1 · 4 Medium EPSS < 1% KEV · Not listed
Vendors
Redhat
Products
Enterprise Linux Openshift Rhel Els
CVE-2026-87876

Cups: openprinting cups: remaining case-insensitive username matching in scheduler side paths (cve-2026-27447 follow-up)

Two case-insensitive comparisons on request-derived usernames outside the main authorization path in CUPS's scheduler (printer ACL validation and private-attribute filtering) could allow bypass of username-based access controls in certain configurations.

CVSS 3.1 · 3 Low EPSS < 1% KEV · Not listed
Vendors
Openprinting Redhat
Products
Cups Enterprise Linux Hardened Images and 4 more
CVE-2026-85498

Polkit: regression in cve-2026-4897 fix (polkit read_cookie()) - stack buffer underflow

A flaw was found in polkit. When processing input that begins with a null byte, an arithmetic error in the authentication agent helper causes an integer underflow during buffer length calculation, resulting in an out-of-bounds memory read. An attacker capable of supplying crafted input can trigger this flaw, potentially causing an application crash and resulting in a Denial of Service (DoS).

CVSS 3.1 · 3.5 Low EPSS < 1% KEV · Not listed
Vendors
Polkit Project Redhat
Products
Polkit Enterprise Linux Hummingbird and 2 more
CVE-2026-68744

Sssd: sssd: nss responder uninitialized heap disclosure in initgroups reply

A flaw was found in SSSD. The sss_nss_protocol_fill_initgr() function in the NSS responder pre-allocates reply space for all group entries but does not shrink the packet when groups are skipped, causing uninitialized heap bytes to be transmitted to the client. A local attacker can exploit this to disclose cached directory data and heap layout information from the sssd_nss process.

CVSS 3.1 · 3.3 Low EPSS < 1% KEV · Not listed
Vendors
Fedoraproject Redhat Sssd
Products
Sssd Enterprise Linux Openshift and 3 more
CVE-2026-6842

Nano: nano: local attacker can inject malicious .desktop launcher due to insecure directory permissions

A flaw was found in nano. In environments with permissive umask settings, a local attacker can exploit incorrect directory permissions (0777 instead of 0700) for the `~/.local` directory. This allows the attacker to inject a malicious `.desktop` launcher, which could lead to unintended actions or information disclosure if the launcher is subsequently processed.

CVSS 3.1 · 2.5 Low EPSS < 1% KEV · Not listed
Vendors
Redhat
Products
Enterprise Linux Openshift Openshift Container Platform and 1 more
CVE-2026-123037

Ansible-core: user module generate_ssh_key follows a symlinked ~/.ssh enabling local privilege escalation (incomplete fix of cve-2024-9902)

A flaw was found in the ansible-core user module. When generate_ssh_key is enabled, User.ssh_key_gen() guards the key files against symlinks but checks the ~/.ssh directory only with os.path.exists(). An unprivileged user on a managed node who replaces their ~/.ssh with a symlink to an existing root-writable directory causes the privileged module to write the generated key pair through the symlink and then chown both files to that user. Because such files can be dropped into directories processed by schedulers (e.g. /etc/cron.daily) or dynamic MOTD (/etc/update-motd.d), the user can escalate to root on the managed node. This is an incomplete fix of CVE-2024-9902.

CVSS 3.1 · 6.7 Medium EPSS < 1% KEV · Not listed
Vendors
Redhat
Products
Acm Ansible Automation Platform Ansible Core and 9 more
CVE-2026-6426

Qemu-kvm: vhost inflight migration vmstate integer type mismatch causes out-of-bounds access

A type mismatch vulnerability was found in QEMU's vhost inflight migration VMState handling. The destination buffer size is stored as a uint64_t but read by the VMS_VBUFFER load path as a signed int32_t. On little-endian hosts, a crafted incoming migration state with bit 31 set causes the value to be interpreted as negative and then implicitly converted to a very large size_t, leading qemu_get_buffer() to copy migration-stream data beyond the bounds of the mmap-backed inflight region. This can result in a crash of the QEMU process or memory corruption. Exploitation requires control of the migration producer or write access to the migration channel, combined with a destination configured to use vhost inflight migration.

CVSS 3.1 · 4.4 Medium EPSS < 1% KEV · Not listed
Vendors
Qemu Redhat
Products
Qemu Enterprise Linux Enterprise Linux For Nvidia 26 and 4 more
CVE-2026-55654

Openssh: heap out-of-bounds read in red hat enterprise linux versions of openssh gssapi indicator cleanup due to missing null sentinel termination

A flaw was found in OpenSSH. This vulnerability, a heap out-of-bounds read, occurs during the cleanup of GSSAPI (Generic Security Service Application Programming Interface) indicators when a trailing NULL termination is missing in the auth-indicators array. A remote attacker, under specific configurations involving GSSAPI authentication and a Kerberos environment, could exploit this to cause the SSH authentication path to crash or abort. This leads to a denial of service (DoS), impacting the availability of the SSH service.

CVSS 3.1 · 3.7 Low EPSS < 1% KEV · Not listed
Vendors
Openbsd Openssh Redhat
Products
Openssh Openssh Enterprise Linux and 6 more