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| CVE | Vendors | Products | Updated | CVSS v3.1 |
|---|---|---|---|---|
| CVE-2026-34480 | 1 Apache | 1 Log4j | 2026-04-13 | N/A |
| Apache Log4j Core's XmlLayout https://logging.apache.org/log4j/2.x/manual/layouts.html#XmlLayout , in versions up to and including 2.25.3, fails to sanitize characters forbidden by the XML 1.0 specification https://www.w3.org/TR/xml/#charsets producing invalid XML output whenever a log message or MDC value contains such characters. The impact depends on the StAX implementation in use: * JRE built-in StAX: Forbidden characters are silently written to the output, producing malformed XML. Conforming parsers must reject such documents with a fatal error, which may cause downstream log-processing systems to drop the affected records. * Alternative StAX implementations (e.g., Woodstox https://github.com/FasterXML/woodstox , a transitive dependency of the Jackson XML Dataformat module): An exception is thrown during the logging call, and the log event is never delivered to its intended appender, only to Log4j's internal status logger. Users are advised to upgrade to Apache Log4j Core 2.25.4, which corrects this issue by sanitizing forbidden characters before XML output. | ||||
| CVE-2026-31412 | 1 Linux | 1 Linux Kernel | 2026-04-13 | N/A |
| In the Linux kernel, the following vulnerability has been resolved: usb: gadget: f_mass_storage: Fix potential integer overflow in check_command_size_in_blocks() The `check_command_size_in_blocks()` function calculates the data size in bytes by left shifting `common->data_size_from_cmnd` by the block size (`common->curlun->blkbits`). However, it does not validate whether this shift operation will cause an integer overflow. Initially, the block size is set up in `fsg_lun_open()` , and the `common->data_size_from_cmnd` is set up in `do_scsi_command()`. During initialization, there is no integer overflow check for the interaction between two variables. So if a malicious USB host sends a SCSI READ or WRITE command requesting a large amount of data (`common->data_size_from_cmnd`), the left shift operation can wrap around. This results in a truncated data size, which can bypass boundary checks and potentially lead to memory corruption or out-of-bounds accesses. Fix this by using the check_shl_overflow() macro to safely perform the shift and catch any overflows. | ||||
| CVE-2026-35650 | 1 Openclaw | 1 Openclaw | 2026-04-13 | 7.5 High |
| OpenClaw before 2026.3.22 contains an environment variable override handling vulnerability that allows attackers to bypass the shared host environment policy through inconsistent sanitization paths. Attackers can supply blocked or malformed override keys that slip through inconsistent validation to execute arbitrary code with unintended environment variables. | ||||
| CVE-2026-6015 | 1 Tenda | 2 Ac9, Ac9 Firmware | 2026-04-13 | 8.8 High |
| A vulnerability has been found in Tenda AC9 15.03.02.13. Impacted is the function formQuickIndex of the file /goform/QuickIndex of the component POST Request Handler. Such manipulation of the argument PPPOEPassword leads to stack-based buffer overflow. It is possible to launch the attack remotely. The exploit has been disclosed to the public and may be used. | ||||
| CVE-2026-5525 | 2 Notepad++, Notepad-plus-plus | 2 Notepad++, Notepad++ | 2026-04-13 | 6 Medium |
| A stack-based buffer overflow vulnerability exists in Notepad++ version 8.9.3 in the file drop handler component. When a user drags and drops a directory path of exactly 259 characters without a trailing backslash, the application appends a backslash and null terminator without proper bounds checking, resulting in a stack buffer overflow and application crash (STATUS_STACK_BUFFER_OVERRUN). | ||||
| CVE-2026-33455 | 1 Checkmk | 1 Checkmk | 2026-04-13 | N/A |
| Livestatus injection in the monitoring quicksearch in Checkmk <2.5.0b4 allows an authenticated attacker to inject livestatus commands via the search query due to insufficient input sanitization in search filter plugins. | ||||
| CVE-2026-6069 | 1 Nasm | 1 Nasm | 2026-04-13 | 7.5 High |
| NASM’s disasm() function contains a stack based buffer overflow when formatting disassembly output, allowing an attacker triggered out-of-bounds write when `slen` exceeds the buffer capacity. | ||||
| CVE-2026-34481 | 1 Apache | 2 Log4j, Log4j Layout Template Json | 2026-04-13 | N/A |
| Apache Log4j's JsonTemplateLayout https://logging.apache.org/log4j/2.x/manual/json-template-layout.html , in versions up to and including 2.25.3, produces invalid JSON output when log events contain non-finite floating-point values (NaN, Infinity, or -Infinity), which are prohibited by RFC 8259. This may cause downstream log processing systems to reject or fail to index affected records. An attacker can exploit this issue only if both of the following conditions are met: * The application uses JsonTemplateLayout. * The application logs a MapMessage containing an attacker-controlled floating-point value. Users are advised to upgrade to Apache Log4j JSON Template Layout 2.25.4, which corrects this issue. | ||||
| CVE-2026-6016 | 1 Tenda | 2 Ac9, Ac9 Firmware | 2026-04-13 | 8.8 High |
| A vulnerability was found in Tenda AC9 15.03.02.13. The affected element is the function decodePwd of the file /goform/WizardHandle of the component POST Request Handler. Performing a manipulation of the argument WANS results in stack-based buffer overflow. The attack can be initiated remotely. The exploit has been made public and could be used. | ||||
| CVE-2026-40097 | 1 Smallstep | 1 Certificates | 2026-04-13 | 3.7 Low |
| Step CA is an online certificate authority for secure, automated certificate management for DevOps. From 0.24.0 to before 0.30.0-rc3, an attacker can trigger an index out-of-bounds panic in Step CA by sending a crafted attestation key (AK) certificate with an empty Extended Key Usage (EKU) extension during TPM device attestation. When processing a device-attest-01 ACME challenge using TPM attestation, Step CA validates that the AK certificate contains the tcg-kp-AIKCertificate Extended Key Usage OID. During this validation, the EKU extension value is decoded from its ASN.1 representation and the first element is checked. A crafted certificate could include an EKU extension that decodes to an empty sequence, causing the code to panic when accessing the first element of the empty slice. This vulnerability is only reachable when a device-attest-01 ACME challenge with TPM attestation is configured. Deployments not using TPM device attestation are not affected. This vulnerability is fixed in 0.30.0-rc3. | ||||
| CVE-2026-33456 | 1 Checkmk | 1 Checkmk | 2026-04-13 | N/A |
| Livestatus injection in the notification test mode in Checkmk <2.5.0b4 and <2.4.0p26 allows an authenticated user with access to the notification test page to inject arbitrary Livestatus commands via a crafted service description. | ||||
| CVE-2026-40190 | 1 Langchain-ai | 1 Langsmith-sdk | 2026-04-13 | 5.6 Medium |
| LangSmith Client SDKs provide SDK's for interacting with the LangSmith platform. Prior to 0.5.18, the LangSmith JavaScript/TypeScript SDK (langsmith) contains an incomplete prototype pollution fix in its internally vendored lodash set() utility. The baseAssignValue() function only guards against the __proto__ key, but fails to prevent traversal via constructor.prototype. This allows an attacker who controls keys in data processed by the createAnonymizer() API to pollute Object.prototype, affecting all objects in the Node.js process. This vulnerability is fixed in 0.5.18. | ||||
| CVE-2026-40227 | 1 Systemd | 1 Systemd | 2026-04-13 | 6.2 Medium |
| In systemd 260 before 261, a local unprivileged user can trigger an assert via an IPC API call with an array or map that has a null element. | ||||
| CVE-2025-44560 | 1 Owntone | 1 Owntone-server | 2026-04-13 | N/A |
| owntone-server 2ca10d9 is vulnerable to Buffer Overflow due to lack of recursive checking. | ||||
| CVE-2026-33457 | 1 Checkmk | 1 Checkmk | 2026-04-13 | N/A |
| Livestatus injection in the prediction graph page in Checkmk <2.5.0b4, <2.4.0p26, and <2.3.0p47 allows an authenticated user to inject arbitrary Livestatus commands via a crafted service name parameter due to insufficient sanitization of the service description value. | ||||
| CVE-2026-6122 | 1 Tenda | 2 F451, F451 Firmware | 2026-04-13 | 8.8 High |
| A vulnerability has been found in Tenda F451 1.0.0.7. Affected by this issue is the function frmL7ProtForm of the file /goform/L7Prot of the component httpd. Such manipulation of the argument page leads to stack-based buffer overflow. The attack may be launched remotely. The exploit has been disclosed to the public and may be used. | ||||
| CVE-2026-40386 | 1 Libexif Project | 1 Libexif | 2026-04-13 | 4 Medium |
| In libexif through 0.6.25, an integer underflow in size checking for Fuji and Olympus MakerNote decoding could be used by attackers to crash or leak information out of libexif-using programs. | ||||
| CVE-2026-6136 | 1 Tenda | 2 F451, F451 Firmware | 2026-04-13 | 8.8 High |
| A security vulnerability has been detected in Tenda F451 1.0.0.7_cn_svn7958. Impacted is the function frmL7ImForm of the file /goform/L7Im. The manipulation of the argument page leads to stack-based buffer overflow. It is possible to initiate the attack remotely. The exploit has been disclosed publicly and may be used. | ||||
| CVE-2026-40385 | 1 Libexif Project | 1 Libexif | 2026-04-13 | 4 Medium |
| In libexif through 0.6.25, an unsigned 32bit integer overflow in Nikon MakerNote handling could be used by local attackers to cause crashes or information leaks. This only affects 32bit systems. | ||||
| CVE-2026-4154 | 1 Gimp | 1 Gimp | 2026-04-13 | 7.8 High |
| GIMP XPM File Parsing Integer Overflow Remote Code Execution Vulnerability. This vulnerability allows remote attackers to execute arbitrary code on affected installations of GIMP. User interaction is required to exploit this vulnerability in that the target must visit a malicious page or open a malicious file. The specific flaw exists within the parsing of XPM files. The issue results from the lack of proper validation of user-supplied data, which can result in an integer overflow before allocating a buffer. An attacker can leverage this vulnerability to execute code in the context of the current process. Was ZDI-CAN-28901. | ||||