CVE-2026-86344

389-ds-base: 389-ds-base: unauthenticated worker-thread-pool exhaustion via completed-operation-then-incomplete-pdu connection requeue

A flaw was found in 389-ds-base. An unauthenticated remote attacker can send a complete LDAP operation followed by the first bytes of an incomplete LDAPMessage on the same connection, causing the server to hand that connection to a second worker thread before the first worker's result is flushed. The second worker blocks until nsslapd-ioblocktimeout while holding the connection mutex, preventing delivery of the completed operation's result. Repeating this across a small number of connections proportional to the configured worker-thread pool size exhausts the entire pool under default configuration, denying service to all clients (anonymous and authenticated, plaintext and TLS) for as long as the attacker maintains the connections.

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

Vendors

Redhat

Products

Directory Server Enterprise Linux Redhat Directory Server and 1 more

CVE-2026-81627

Qemu-kvm: vapic writable rom alias can escape the option-rom window and expose locked smram

A flaw was found in QEMU. The VAPIC setup hypercall in hw/i386/vapic.c does not validate that the writable RAM alias remains within the option ROM window. A privileged guest user on a Q35/KVM machine can position this alias over locked SMRAM, bypassing chipset D_LCK protection and injecting code into System Management Mode memory.

CVSS 3.1 · 8.2 High EPSS < 1% KEV · Not listed

Vendors

Qemu Redhat

Products

Qemu Enterprise Linux Enterprise Linux For Nvidia 26 and 6 more

CVE-2026-80110

Pki-core: dogtag pki v2 rest acl filter's reverse-lexicographic tie-break lets a ca agent invoke the admin-only raw profile creation endpoint

A flaw was found in pki-core. The v2 REST ACL filter selects a tie-breaking permission for colliding literal and wildcard ACL keys using lexicographic string comparison rather than specificity, causing a wildcard-mapped permission to override a more specific literal-mapped permission when both match. In the CA's profile-management REST API this allows a request to POST /v2/profiles/raw -- intended to require Administrator-level profiles.create permission -- to instead be authorized under the lower-privileged profiles.approve permission held by the default Certificate Manager Agents group. The highest threat from this vulnerability is to confidentiality and integrity of the certificate authority's issuance policy.

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

Vendors

Redhat

Products

Certificate System Dogtag Certificate System Enterprise Linux and 3 more

CVE-2026-79678

Freeipa: idm: freeipa: idp-add eval() reachable before authorization check allows environment disclosure and denial of service

A flaw was found in FreeIPA's idp-add command, where insufficiently validated --organization/--base-url input reaches a constrained eval() call before the corresponding LDAP access control check is enforced. This allows any authenticated IPA principal, regardless of privilege level, to enumerate and read the environment variables of the affected server process and to cause denial of service via memory exhaustion.

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

Vendors

Redhat

Products

Enterprise Linux Enterprise Linux Eus Freeipa and 6 more

CVE-2026-78465

Gimp: integer overflow in pcx loader (planes=4) leads to heap overflow on 32-bit

A flaw was found in the file-pcx plugin in GIMP, affecting 32-bit builds only. When processing a PCX image file, the plugin calculates memory allocation sizes based on the image dimensions and the number of color planes. If a crafted file sets the number of planes to 4 alongside sufficiently large dimensions, the calculation exceeds the 32-bit integer limit and overflows, resulting in an undersized heap-based buffer allocation. This integer overflow issue results in a heap-based buffer overflow when the plugin subsequently writes image data into the undersized buffer, causing memory corruption, potentially leading to arbitrary code execution or a denial of service.

CVSS 3.1 · 7 High EPSS < 1% KEV · Not listed

Vendors

Gimp Redhat

Products

Gimp Enterprise Linux Rhel Els

CVE-2026-78409

Util-linux: util-linux: x-mount.subdir detached-tree resolution can escape via intermediate symlinks

The X-mount.subdir option uses a detached-tree fast path on Linux 6.15 and later and passes the configured subdirectory to open_tree() with AT_SYMLINK_NOFOLLOW. That flag does not stop intermediate symlink traversal or keep resolution inside the newly mounted filesystem. A local unprivileged user with an fstab-authorized X-mount.subdir entry can attach a host path at the intended mountpoint.

CVSS 3.1 · 7 High EPSS < 1% KEV · Not listed

Vendors

Linux Redhat

Products

Util-linux Enterprise Linux Hardened Images and 4 more

CVE-2026-7867

Udisks2: udisks2: local privilege escalation via as-user option spoofing

A flaw was found in udisks2. A local attacker with an active console session can exploit insufficient authorization checking on the 'as-user' option in the org.freedesktop.UDisks2.Filesystem.Mount() D-Bus method. This allows the attacker to spoof the 'as-user' parameter, mounting filesystems on behalf of arbitrary users, including privileged accounts. This can lead to local privilege escalation through mount point injection and manipulation of the mount namespace visible to privileged users.

CVSS 3.1 · 7.8 High EPSS < 1% KEV · Not listed

Vendors

Redhat

Products

Enterprise Linux Enterprise Linux Eus Rhel Els

CVE-2026-76578

Ipa: freeipa: freeipa: unauthenticated ldap client can obtain administrator credentials via the self-managed-token aci

A flaw was found in FreeIPA. The self-managed OTP token ACI does not require authentication and does not restrict which attributes may be added alongside the token entry. An unauthenticated LDAP client can exploit this, combined with a related flaw in the underlying directory server's ACI evaluation (tracked separately), to create an arbitrary attacker-controlled Kerberos principal and have it added to the administrators group. This allows a remote, unauthenticated attacker to obtain genuine FreeIPA administrator-group membership and perform administrative operations against the directory and, on SID-enabled deployments, other IdM services.

CVSS 3.1 · 9.8 Critical EPSS 1.3% KEV · Not listed

Vendors

Redhat

Products

Enterprise Linux Enterprise Linux Eus Freeipa and 6 more

CVE-2026-76561

Pki-core: dogtag/pki: certprofile-import allows code execution via unsanitized profile content (externalprocessconstraint)

A flaw was found in Dogtag PKI, as used by FreeIPA's certificate authority component. The certificate profile import functionality does not fully validate uploaded profile content beyond the profile ID. An authenticated user with CA Administrator privileges can exploit Dogtag's ExternalProcessConstraint mechanism to execute arbitrary commands with attacker-controlled environment variables, achieving code execution as the pkiuser account.

CVSS 3.1 · 7.2 High EPSS < 1% KEV · Not listed

Vendors

Redhat

Products

Certificate System Enterprise Linux Enterprise Linux Eus and 6 more

CVE-2026-76560

389-ds-base: 389-ds: anonymous ldap client can defeat selfdn aci bind-rule checks via empty bind dn

A flaw was found in 389 Directory Server. The SELFDN ACI bind-rule evaluator incorrectly matches an anonymous LDAP client's empty bind DN against an empty stored attribute value, allowing an unauthenticated client to satisfy access control checks intended to require a matching authenticated identity. This can allow an anonymous LDAP client to perform an operation, such as adding or modifying a directory entry, that a SELFDN-based ACI intended to restrict to a specific authenticated user.

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

Vendors

Redhat

Products

Directory Server Directory Server E4s Enterprise Linux and 7 more

CVE-2026-71217

Iperf3: iperf3 server accepts unbounded peer-controlled json parameters enabling remote denial of service via resource exhaustion

A flaw was found in iperf3. A remote attacker can exploit this vulnerability by sending crafted control-channel JSON with oversized numeric parameters, such as `parallel` and `len`, which are not properly validated by the server. This improper input validation can lead to excessive stream and thread creation, as well as large buffer allocations, causing resource exhaustion. Consequently, this can result in a Denial of Service (DoS) on the affected iperf3 server.

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

Vendors

Iperf3 Project Redhat

Products

Iperf3 Enterprise Linux Rhel Els

CVE-2026-6846

Binutils: binutils: arbitrary code execution via malformed xcoff object file processing

A flaw was found in binutils. A heap-buffer-overflow vulnerability exists when processing a specially crafted XCOFF (Extended Common Object File Format) object file during linking. A local attacker could trick a user into processing this malicious file, which could lead to arbitrary code execution, allowing the attacker to run unauthorized commands, or cause a denial of service, making the system unavailable.

CVSS 3.1 · 7.8 High EPSS < 1% KEV · Not listed

Vendors

Gnu Iputils Redhat

Products

Binutils Iputils Enterprise Linux and 5 more

CVE-2026-73198

Ipa: freeipa: unauthenticated dos in `/ipa/i18n_messages` via unbounded request body read

A flaw was found in FreeIPA. A remote, unauthenticated attacker can exploit a vulnerability in the `/ipa/i18n_messages` endpoint by sending an arbitrarily large request body. This can cause the service to consume excessive memory, leading to memory exhaustion, degraded responsiveness, and a denial of service (DoS) condition.

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

Vendors

Freeipa Redhat

Products

Freeipa Enterprise Linux Enterprise Linux Eus and 6 more

CVE-2026-73197

Ipa: freeipa: unauthenticated dos in `/ipa/migration/migration.py` via unbounded request body read

A flaw was found in FreeIPA. A remote, unauthenticated attacker can exploit this vulnerability by sending oversized form POST requests to the `/ipa/migration/migration.py` endpoint. This can force the migration handler to read attacker-controlled request bodies fully into memory, leading to increased memory usage, slower request handling, and potential service disruption or denial of service.

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

Vendors

Freeipa Redhat

Products

Freeipa Enterprise Linux Enterprise Linux Eus and 6 more

CVE-2026-72694

Mrtg: mrtg daemon symlink-following chown allows local privilege escalation via pid file path manipulation

A flaw was found in MRTG. When the MRTG daemon is started as a root user and subsequently drops privileges, a local, low-privileged attacker can exploit a symbolic link (symlink) following vulnerability. By influencing or pre-placing a symlink in the process ID (PID) file path, the attacker can trick the root process into changing the ownership of an arbitrary existing file to the daemon user. This can lead to local privilege escalation, allowing unauthorized access to or modification of sensitive files.

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

Vendors

Mrtgconfig Redhat

Products

Mrtg Enterprise Linux Enterprise Linux Eus and 6 more

CVE-2026-59692

Gstreamer1-plugins-bad-free: gstreamer: dtls certificate subject dn stack buffer overflow in openssl_verify_callback

A stack buffer overflow vulnerability was found in GStreamer's DTLS plugin. During a DTLS handshake, the peer certificate Subject Distinguished Name is printed into a fixed-size 2048-byte stack buffer without bounds checking. A remote unauthenticated attacker can send a certificate with an oversized Subject DN that exceeds the buffer, causing a stack buffer overflow and process crash, resulting in denial of service.

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

Vendors

Gstreamer Redhat

Products

Gstreamer Enterprise Linux Enterprise Linux Eus and 6 more

CVE-2026-59691

Gstreamer1-plugins-bad-free: gstreamer: rfbsrc/librfb hextile heap out-of-bounds write with 16bpp framebuffer

A heap buffer overflow vulnerability was found in GStreamer's rfbsrc plugin. When a client connects to a malicious RFB/VNC server that advertises a 16bpp framebuffer and sends Hextile-encoded updates, the Hextile background fill path writes 32-bit pixel values into a buffer allocated for 16-bit pixels. This type mismatch causes an out-of-bounds heap write that can lead to denial of service (process crash) and potential memory corruption.

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

Vendors

Gstreamer Redhat

Products

Gstreamer Enterprise Linux Enterprise Linux Eus and 6 more

CVE-2026-59091

Gimp: gimp: multiple vulnerabilities in file format plugins via crafted image file

A flaw was found in GIMP's file format plugins, including those for PSD and PAA files. A remote attacker could exploit these vulnerabilities by tricking a user into opening a specially crafted image file. This could lead to unexpected application behavior or other potential security impacts without requiring further user interaction.

CVSS 3.1 · 7.3 High EPSS < 1% KEV · Not listed

Vendors

Gimp Redhat

Products

Gimp Enterprise Linux Rhel Els

CVE-2026-59090

Gimp: gimp: arbitrary code execution in psd plugin due to unsigned underflow

A flaw was found in GIMP's PSD file format plugin. This vulnerability, an unsigned integer underflow in the `block_rem` variable, occurs when a user opens a specially crafted `.psd` image file. The underflow leads to parser confusion, enabling an attacker to inject arbitrary data as layer resource blocks. This can ultimately result in arbitrary code execution, allowing the attacker to run malicious code on the victim's system.

CVSS 3.1 · 8.4 High EPSS < 1% KEV · Not listed

Vendors

Gimp Redhat

Products

Gimp Enterprise Linux Rhel E4s and 2 more

CVE-2026-59087

Gimp: heap buffer overflow in `file-seattle-filmworks` load — `fread` writes attacker-controlled length into undersized allocation

A flaw was found in the GIMP image manipulation program, specifically within its Seattle Filmworks file loader. A remote attacker could exploit this vulnerability by tricking a user into opening a specially crafted Seattle Filmworks file. This could lead to a heap overflow, allowing the attacker to write several kilobytes of controlled data beyond the intended memory buffer. Such an overflow can result in memory corruption, potentially leading to arbitrary code execution or a denial of service.

CVSS 3.1 · 7.8 High EPSS < 1% KEV · Not listed

Vendors

Gimp Redhat

Products

Gimp Enterprise Linux Rhel Els