CVE-2026-93347

Wazuh 4.1.1 before 4.14.8 Path Traversal via Cluster get_list_file

Wazuh from 4.1.1 before 4.14.8 contains a path traversal vulnerability in the get_list_file helper that allows malicious cluster workers to read arbitrary files via unvalidated filename values. Attackers holding the cluster key can send DistributedAPI requests with traversal filenames to read client.keys, ossec.conf with the cluster key, and other wazuh-readable files.

CVSS 4.0 · 6.9 Medium EPSS < 1% KEV · Not listed

Vendors

Wazuh

Products

Wazuh Wazuh-manager

CVE-2026-74030

Wazuh 3.9.0 before 4.14.8 Memory Exhaustion via SCA YAML Alias Expansion

Wazuh from 3.9.0 before 4.14.8 contains an uncontrolled YAML alias expansion vulnerability in yaml2json_node that allows a manager-controlled policy to exhaust agent memory. Attackers controlling the manager can push a small SCA policy with nested aliases via merged.mg to OOM-kill wazuh-modulesd on every agent in a group.

CVSS 4.0 · 6.9 Medium EPSS < 1% KEV · Not listed

Vendors

Wazuh

Products

Wazuh Wazuh-agent Wazuh-manager

CVE-2026-74035

Wazuh 4.6.0 before 4.14.8 Authentication Bypass via Empty Password in update_user

Wazuh versions from 4.6.0 before 4.14.8 contain an authentication bypass vulnerability where security.update_user places the reserved user guard and password policy inside a falsy truthiness check. A delegated user administrator can send an empty password to the user update endpoint, bypassing the reserved user guard to take over the wazuh superuser account and authenticate with empty credentials.

CVSS 4.0 · 8.6 High EPSS < 1% KEV · Not listed

Vendors

Wazuh

Products

Wazuh

CVE-2026-74031

Wazuh 4.1.1 before 4.14.8 Path Traversal File Deletion via Rule/Decoder Delete Helpers

Wazuh from 4.1.1 before 4.14.8 contains a path traversal vulnerability in the delete_rule_file and delete_decoder_file helpers that allows malicious cluster workers to delete arbitrary files via an unvalidated filename parameter. Attackers holding the cluster key can invoke these helpers through DistributedAPI with traversal sequences to delete ossec.conf, client.keys, or rules as the wazuh user.

CVSS 4.0 · 7 High EPSS < 1% KEV · Not listed

Vendors

Wazuh

Products

Wazuh Wazuh-manager

CVE-2026-74036

Wazuh 4.3.0 before 4.14.8 Remote Code Execution via SCA Command Policies

Wazuh from 4.3.0 before 4.14.8 contains a remote code execution vulnerability where SCA policy trust is determined by file path rather than configuration source. Attackers controlling a manager can write unsigned policy files to var/incoming via the upgrade channel and reference them to execute command checks as root on agents.

CVSS 4.0 · 8.6 High EPSS < 1% KEV · Not listed

Vendors

Wazuh

Products

Wazuh Wazuh-agent

CVE-2026-74045

Wazuh 3.12.0 before 4.14.8 Heap Buffer Overflow in wazuh-analysisd FIM Decoder

Wazuh from 3.12.0 before 4.14.8 contains a heap buffer overflow in fim_generate_alert() where full_log is sized from input but written bounded by OS_MAXSTR. An enrolled agent can send a crafted FIM syscheck event to corrupt manager heap memory and deterministically crash wazuh-analysisd, causing a fleet-wide detection outage.

CVSS 4.0 · 7.1 High EPSS < 1% KEV · Not listed

Vendors

Wazuh

Products

Wazuh

CVE-2026-74039

Wazuh 4.0.0 < 4.14.7 API DoS via Deeply Nested JSON auth_context

Wazuh 4.0.0 before 4.14.7 and 5.0.0-beta2 contain a denial of service vulnerability that allows authenticated attackers with allow_run_as enabled to exhaust CPU resources by submitting arbitrarily deeply nested JSON structures to the POST /security/user/authenticate/run_as endpoint. Attackers can repeatedly submit malformed auth_context bodies with unlimited nesting depth to cause the API framework to consume excessive CPU, denying service to all other API consumers.

CVSS 4.0 · 7.1 High EPSS < 1% KEV · Not listed

Vendors

Wazuh

Products

Wazuh Wazuh-manager

CVE-2026-61811

Wazuh: Unbounded Recursion in os_xml `_getattributes()` Causes analysisd Worker Thread Stack Exhaustion

Wazuh is an open-source security platform providing unified XDR and SIEM protection for endpoints and cloud workloads. From 3.8.0 until 4.14.7, the _getattributes() function in src/os_xml/os_xml.c recursively processes every XML attribute without a depth limit while allocating two large local buffers in each stack frame. An enrolled agent can submit a Windows EventChannel event containing an element with enough attributes to exhaust the analysisd worker-thread stack, trigger a segmentation fault, and interrupt log ingestion. The element-depth limit in _ReadElem() does not constrain the number of attributes on one element, so it does not prevent this condition. This issue is fixed in version 4.14.7.

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

Vendors

Wazuh

Products

Wazuh

CVE-2026-71540

Wazuh Manager cluster header parsing allows pre-authentication memory exhaustion

Wazuh is an open-source security platform providing unified XDR and SIEM protection for endpoints and cloud workloads. From 3.9.0 until 4.14.7, wazuh-clusterd in framework/wazuh/core/cluster/common.py allocates a payload buffer using the size declared in a 20-byte cluster protocol header before Fernet decryption validates the peer. An unauthenticated network peer can declare a payload of up to 256 MiB, stop sending after the header, and retain that allocation until the TCP connection closes. The cluster listener has no application-level per-source connection budget in affected versions, allowing concurrent sockets to multiply memory consumption and potentially terminate the cluster process, disrupt synchronization, and interrupt distributed API forwarding. This issue is fixed in version 4.14.7.

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

Vendors

Wazuh

Products

Wazuh

CVE-2026-44253

Wazuh: Cluster Protocol Memory Exhaustion (DoS) via unbounded receive_str allocation and div_msg_box accumulation

Wazuh is a free and open source platform used for threat prevention, detection, and response. From 3.9.0 until 4.14.5 and 5.0.0-beta2, the Wazuh cluster protocol in framework/wazuh/core/cluster/common.py allows an authenticated cluster node to exhaust memory on the master. The receive_str() method accepts an attacker-controlled total for InBuffer without a maximum, so a new_str command can request a multi-gigabyte bytearray and repeated requests accumulate in in_str. The divided-message path also retains flag_divided fragments under unique counters in div_msg_box without a count, aggregate-size, or expiration limit. Exploitation can disrupt agent connectivity and alert processing across the monitored environment. This issue is fixed in versions 4.14.5 and 5.0.0-beta2.

CVSS 3.1 · 4.9 Medium EPSS < 1% KEV · Not listed

Vendors

Wazuh

Products

Wazuh

CVE-2026-44252

Wazuh Manager dapi RBAC Bypass Allows Privilege Escalation

Wazuh is a free and open source platform used for threat prevention, detection, and response. From 4.0.0 until 4.14.5, Wazuh Manager allows a low-privilege read-only API user with manager:read permission to retrieve the cluster key from the element in ossec.conf through GET /manager/configuration?raw=true. An attacker with network access to TCP port 1516 can use the disclosed Fernet key to impersonate a cluster worker and submit distributed API requests containing attacker-controlled rbac_permissions with rbac_mode set to black. Because the master trusts the worker-supplied authorization context, the attacker can create users, assign administrator roles, access credentials and API tokens, modify configuration, and execute actions across agents. This issue is fixed in version 4.14.5.

CVSS 4.0 · 7.7 High EPSS < 1% KEV · Not listed

Vendors

Wazuh

Products

Wazuh

CVE-2026-44254

Wazuh: Stack Out-of-Bounds Write in remoted Decompression Path

Wazuh is a free and open source platform used for threat prevention, detection, and response. From 1.0.0 until 4.14.6 and 5.0.0-beta2, HandleSecureMessage() in src/remoted/secure.c passes a pointer inside its stack buffer to ReadSecMSG(), and src/os_crypto/shared/msgs.c decompresses up to OS_MAXSTR bytes at that offset. For an encrypted agent message on TCP port 1514 that expands to 65,536 bytes, os_zlib_uncompress() writes a terminating null byte beyond the end of the destination buffer. The resulting stack out-of-bounds write in the root-level remoted daemon can crash message processing and disrupt agent communications. This issue is fixed in versions 4.14.6 and 5.0.0-beta2.

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

Vendors

Wazuh

Products

Wazuh

CVE-2026-41424

Wazuh: Privilege Escalation via Admin-Protection Bypass in update-user API Endpoint

Wazuh is a free and open source platform used for threat prevention, detection, and response. From 4.9.0 until 4.10.4 and 4.14.6, PUT /security/users/{user_id} in api/api/controllers/security_controller.py passes request.get("user") instead of request.context['token_info']['sub'] as current_user. remove_nones_to_dict() removes the resulting None value, so the reserved-account protection in framework/wazuh/security.py cannot verify who is making the request. An authenticated user with the users_admin role can overwrite the password of protected administrator accounts with user IDs at or below 99, including the wazuh superuser, and gain full administrative control. This issue is fixed in versions 4.10.4 and 4.14.6.

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

Vendors

Wazuh

Products

Wazuh

CVE-2026-44255

Wazuh: Username Enumeration via Timing Side-Channel

Wazuh is a free and open source platform used for threat prevention, detection, and response. From 4.0.0 until 4.14.6 and 5.0.0-beta2, AuthenticationManager.check_user() in framework/wazuh/rbac/orm.py performs check_password_hash() only when the supplied username exists. A nonexistent username returns immediately, while a valid username causes an expensive bcrypt calculation. An unauthenticated remote attacker can compare authentication response times to enumerate valid Wazuh usernames and use that information in subsequent credential attacks. This issue is fixed in versions 4.14.6 and 5.0.0-beta2.

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

Vendors

Wazuh

Products

Wazuh

CVE-2026-44256

Wazuh: CRLF Log Injection via Unsanitized Basic-Auth Username

Wazuh is a free and open source platform used for threat prevention, detection, and response. From 4.4.0 until 4.14.6 and 5.0.0-beta2, api/api/middlewares.py decodes the Basic authentication username before credential validation and passes it to the access logger without neutralizing control characters. api/api/alogging.py interpolates that value into the plain-text API log. An unauthenticated attacker can include carriage returns or line feeds in the username to forge entries, obscure activity, or poison systems that consume the plain-text audit log. The JSON log format is not affected because JSON serialization escapes these characters. This issue is fixed in versions 4.14.6 and 5.0.0-beta2.

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

Vendors

Wazuh

Products

Wazuh

CVE-2026-74038

Wazuh 4.0.0 < 4.14.6 Path Traversal DoS via Agent Enrollment

Wazuh 4.0.0 before 4.14.6 contains a path traversal vulnerability that allows unauthenticated remote attackers to cause denial of service by enrolling an agent with a dot-sequence name such as ".." through the enrollment port. Attackers exploit insufficient validation in OS_IsValidName() and unsafe path concatenation in delete_diff() to resolve the traversal to the parent queue directory, causing its subdirectories to be removed and stopping all Wazuh services requiring manual recovery.

CVSS 4.0 · 7 High EPSS < 1% KEV · Not listed

Vendors

Wazuh

Products

Wazuh Wazuh-manager

CVE-2026-74044

Wazuh 4.0.0 < 4.14.6 Path Traversal Arbitrary Directory Deletion via Cluster Hello

Wazuh 4.0.0 before 4.14.6 contains a path traversal vulnerability that allows authenticated cluster peers to delete arbitrary directory contents by supplying a traversal-shaped node name in the cluster hello payload without validation. Attackers holding a valid cluster Fernet key can craft a malicious node name and disconnect, triggering the master's peer cleanup routine to remove the contents of arbitrary directories within the Wazuh installation path writable by the wazuh user.

CVSS 4.0 · 7 High EPSS < 1% KEV · Not listed

Vendors

Wazuh

Products

Wazuh Wazuh-manager

CVE-2026-74046

Wazuh 4.4.0 < 4.14.7 DoS via fdecompress_files() Zip Bomb

Wazuh 4.4.0 before 4.14.7 contains a denial of service vulnerability in the fdecompress_files() function within cluster.py that allows authenticated cluster peers to exhaust memory by supplying a malicious synchronization archive without decompressed size limits. Attackers holding a valid cluster Fernet key can upload a small, highly compressed zip bomb archive that forces wazuh-clusterd on the master node to decompress the full payload into memory, causing memory exhaustion and service disruption.

CVSS 4.0 · 6.9 Medium EPSS < 1% KEV · Not listed

Vendors

Wazuh

Products

Wazuh Wazuh-manager

CVE-2026-45798

Wazuh: Pre-auth stack-buffer-overflow in compare_wazuh_versions reachable from wazuh-authd (TCP/1515) via crafted enrollment V: field

Wazuh is a free and open source platform used for threat prevention, detection, and response. From 4.5.0 until 4.14.6 and 5.0.0-beta2, compare_wazuh_versions() in src/shared/version_op.c copies the attacker-controlled enrollment V: field into a 10-byte stack buffer with strncpy() but does not explicitly terminate the buffer. The function is reachable before authentication through wazuh-authd on TCP port 1515 when anonymous TLS enrollment is enabled. A version string of at least nine non-null bytes can cause strchr() and strtok() to read beyond ver2 and can make strtok() write a null byte into adjacent stack memory, allowing a remote denial of service. This issue is fixed in versions 4.14.6 and 5.0.0-beta2.

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

Vendors

Wazuh

Products

Wazuh

CVE-2026-48024

Wazuh: merged-file header path traversal in cluster sync allows arbitrary file write under WAZUH_PATH in Wazuh manager

Wazuh is a free and open source platform used for threat prevention, detection, and response. From 4.0.0 until 4.14.6 and 5.0.0-beta3, cluster.unmerge_info() in framework/wazuh/core/cluster/cluster.py constructs paths from peer-controlled merge_type and name values in a merged synchronization archive. process_files_from_worker() in framework/wazuh/core/cluster/master.py does not adequately confine the resulting path to the declared cluster item directory. A cluster peer holding the shared Fernet key can use traversal in files_metadata.json or a merged-file header to write files such as /var/ossec/etc/ossec.conf. Replacing ossec.conf can configure root-executed commands and lead to code execution when Wazuh services reload. This issue is fixed in versions 4.14.6 and 5.0.0-beta3.

CVSS 3.1 · 9.1 Critical EPSS < 1% KEV · Not listed

Vendors

Wazuh

Products

Wazuh