CVE-2026-4541

A flaw has been found in janmojzis tinyssh up to 20250501. Impacted is an unknown function of the file tinyssh/cryptosigned25519tinyssh.c of the component Ed25519 Signature Handler. This manipulation causes improper verification of cryptographic signature. The attack is restricted to local...

CVE-2026-4541 janmojzis tinyssh Ed25519 Signature crypto_sign_ed25519_tinyssh.c signature verification

A flaw has been found in janmojzis tinyssh up to 20250501. Impacted is an unknown function of the file tinyssh/cryptosigned25519tinyssh.c of the component Ed25519 Signature Handler. This manipulation causes improper verification of cryptographic signature. The attack is restricted to local...

CVE-2026-4541

The CVE-2026-4541 entry concerns janmojzis tinyssh (up to 20250501) with a flaw in the Ed25519 Signature Handler—specifically in tinyssh/crypto_sign_ed25519_tinyssh.c. The issue is described as improper verification of a cryptographic signature in a local-execution scenario, with high attack comp...

CVE-2026-4541 janmojzis tinyssh Ed25519 Signature crypto_sign_ed25519_tinyssh.c signature verification

A flaw has been found in janmojzis tinyssh up to 20250501. Impacted is an unknown function of the file tinyssh/cryptosigned25519tinyssh.c of the component Ed25519 Signature Handler. This manipulation causes improper verification of cryptographic signature. The attack is restricted to local...

CVE-2026-4541 janmojzis tinyssh Ed25519 Signature crypto_sign_ed25519_tinyssh.c signature verification

A flaw has been found in janmojzis tinyssh up to 20250501. Impacted is an unknown function of the file tinyssh/cryptosigned25519tinyssh.c of the component Ed25519 Signature Handler. This manipulation causes improper verification of cryptographic signature. The attack is restricted to local...

CVE-2026-4541

A flaw has been found in janmojzis tinyssh up to 20250501. Impacted is an unknown function of the file tinyssh/cryptosigned25519tinyssh.c of the component Ed25519 Signature Handler. This manipulation causes improper verification of cryptographic signature. The attack is restricted to local...

PuTTY 数据伪造问题漏洞

PuTTY is a set of free Telnet, Rlogin, and SSH clients developed by Simon Tatham. This software is primarily used for remote management of Linux systems. Version 0.83 of PuTTY has a vulnerability related to data manipulation, stemming from improper handling of encrypted signatures in the Ed25519...

tinyssh 数据伪造问题漏洞

Tinyssh is a lightweight SSH server developed by Jan Mojžíš as an individual project. Versions of Tinyssh prior to 20250501 contained a data manipulation vulnerability. This vulnerability stemmed from an unknown feature in the Ed25519 signature processing component, specifically the file...

EUVD-2026-14017

Issue summary: A type confusion vulnerability exists in the signature verification of signed PKCS7 data where an ASN1TYPE union member is accessed without first validating the type, causing an invalid or NULL pointer dereference when processing malformed PKCS7 data. Impact summary: An application...

CVE-2026-3641

The Appmax WordPress plugin (up to version 1.0.3) exposes a public REST API webhook at /webhook-system that lacks webhook signature verification or authentication. The plugin directly processes untrusted input from the 'event' and 'data' parameters, enabling unauthenticated attackers to alter Woo...

DEBIAN-CVE-2026-33243

barebox is a bootloader. In barebox from version 2016.03.0 to before version 2026.03.1 and the corresponding backport to 2025.09.3, an attacker could exploit a FIT signature verification vulnerability to trick the bootloader into booting different images than those that were verified as part of a...

CVE-2026-33243 barebox: FIT Signature Verification Bypass Vulnerability

barebox is a bootloader. In barebox from version 2016.03.0 to before version 2026.03.1 and the corresponding backport to 2025.09.3, an attacker could exploit a FIT signature verification vulnerability to trick the bootloader into booting different images than those that were verified as part of a...

CVE-2026-33243 barebox: FIT Signature Verification Bypass Vulnerability

barebox is a bootloader. In barebox from version 2016.03.0 to before version 2026.03.1 and the corresponding backport to 2025.09.3, an attacker could exploit a FIT signature verification vulnerability to trick the bootloader into booting different images than those that were verified as part of a...

CVE-2026-33243

barebox is a bootloader. In barebox from version 2016.03.0 to before version 2026.03.1 and the corresponding backport to 2025.09.3, an attacker could exploit a FIT signature verification vulnerability to trick the bootloader into booting different images than those that were verified as part of a...

CVE-2026-33243

Removed by vendor...

CVE-2026-33243 barebox: FIT Signature Verification Bypass Vulnerability

barebox is a bootloader. In barebox from version 2016.03.0 to before version 2026.03.1 and the corresponding backport to 2025.09.3, an attacker could exploit a FIT signature verification vulnerability to trick the bootloader into booting different images than those that were verified as part of a...

CVE-2026-33243

Barebox contains a vulnerability in the FIT signing flow: during mkimage, the hashed-nodes property of the FIT signature node is computed, but the hashed-nodes value is not itself protected by the hash. An attacker can modify hashed-nodes to influence which nodes were reported as hashed, potentia...

CVE-2026-33143

OneUptime is a solution for monitoring and managing online services. Prior to version 10.0.34, the WhatsApp POST webhook handler /notification/whatsapp/webhook processes incoming status update events without verifying the Meta/WhatsApp X-Hub-Signature-256 HMAC signature, allowing any...

CVE-2026-33143 OneUptime: WhatsApp Webhook Missing Signature Verification

OneUptime is a solution for monitoring and managing online services. Prior to version 10.0.34, the WhatsApp POST webhook handler /notification/whatsapp/webhook processes incoming status update events without verifying the Meta/WhatsApp X-Hub-Signature-256 HMAC signature, allowing any...

CVE-2026-33143 OneUptime: WhatsApp Webhook Missing Signature Verification

OneUptime is a solution for monitoring and managing online services. Prior to version 10.0.34, the WhatsApp POST webhook handler /notification/whatsapp/webhook processes incoming status update events without verifying the Meta/WhatsApp X-Hub-Signature-256 HMAC signature, allowing any...