MikroTik RouterOS 7.9 < 7.23.4 / 7.24.x < 7.24.2 SSH Authentication Bypass (CVE-2026-67276)

According to its self-reported version, the remote networking device is running a version of MikroTik RouterOS 7.9 prior to 7.23.4, or 7.24.x prior to 7.24.2. It is, therefore, affected by an authentication bypass vulnerability. RouterOS does not compare the complete RSA public key when matching ...

Mikrotrick_POC

RouterOS SSH Modulus-Confusion Validator CVE-2026-67276 An automated behavioral validator designed to detect the SSH public key authentication bypass vulnerability in MikroTik RouterOS CVE-2026-67276. The script tests whether an SSH service incomplete-validation flaw allows authentication by...

exploit-mikrotik-2026

CVE-2026-67276 - MikroTrik SSH Authentication Bypass Exploit MikroTik RouterOS SSH Public Key Authentication Bypass - No Private Key Required A proof-of-concept exploit for CVE-2026-67276 MikroTrick, a critical authentication bypass vulnerability in MikroTik RouterOS SSH implementation that allow...

Exploit for CVE-2026-67276

CVE-2026-67276 - MikroTrik SSH Authentication Bypass Exploit...

Exploit for CVE-2026-67276

MikroTrick lab PoC — CVE-2026-67276 RouterOS SSH public-key a...

CVE-2026-67276

RouterOS does not compare the complete RSA public key when matching an SSH authentication request to an authorized user key, checking the key type and modulus but omitting the exponent. Because signature verification uses the client-supplied key, an attacker knowing an authorized RSA modulus can...

EUVD-2026-72024

RouterOS does not compare the complete RSA public key when matching an SSH authentication request to an authorized user key, checking the key type and modulus but omitting the exponent. Because signature verification uses the client-supplied key, an attacker knowing an authorized RSA modulus can...

CVE-2026-67276 SSH user impersonation possible in Mikrotik RouterOS

RouterOS does not compare the complete RSA public key when matching an SSH authentication request to an authorized user key, checking the key type and modulus but omitting the exponent. Because signature verification uses the client-supplied key, an attacker knowing an authorized RSA modulus can...

CVE-2026-67276 SSH user impersonation possible in Mikrotik RouterOS

RouterOS does not compare the complete RSA public key when matching an SSH authentication request to an authorized user key, checking the key type and modulus but omitting the exponent. Because signature verification uses the client-supplied key, an attacker knowing an authorized RSA modulus can...

CVE-2026-67276

MikroTik RouterOS is vulnerable to an SSH public-key authentication bypass (CWE-347). The server matches a presented public-key blob to an authorized key by key type and modulus only, omitting the exponent , and performs signature verification using the client-supplied key . An attacker who knows...

VulnCheck KEV: CVE-2026-67276

RouterOS does not compare the complete RSA public key when matching an SSH authentication request to an authorized user key, checking the key type and modulus but omitting the exponent. Because signature verification uses the client-supplied key, an attacker knowing an authorized RSA modulus can...

CVE-2026-85393 node-forge through 1.4.0 RSA PKCS#1 v1.5 Signature Forgery via Nested DigestAlgorithm Padding

node-forge through 1.4.0 fails to validate element count in nested DigestAlgorithm sequences during RSA PKCS1 v1.5 signature verification. Attackers can embed garbage bytes inside the DigestAlgorithm sequence to forge valid signatures for arbitrary messages using low-exponent RSA keys. This is an...

PT-2026-86451

Name of the Vulnerable Software and Affected Versions RouterOS versions prior to 6.49.21 RouterOS versions prior to 7.23.4 RouterOS versions prior to 7.24.2 Description An authentication bypass exists in the SSH public key verification process. The system fails to compare the complete RSA public...

CVE-2026-76763

SmallRye GraphQL contains a flaw in its number scalar coercion for BigInteger , which fails to properly validate the magnitude of float or string inputs. An unauthenticated remote attacker can send a GraphQL query containing a large exponent float literal, triggering the allocation of extremely l...

EUVD-2026-68525

A flaw was found in SmallRye GraphQL. The number scalar coercion for BigInteger does not properly validate the magnitude of float or string inputs. An unauthenticated remote attacker can exploit this by sending a GraphQL query containing a large exponent float literal. This can lead to the...

UBUNTU-CVE-2026-47886

Applications that evaluate user-supplied Spring Expression Language SpEL expressions may be vulnerable to a Denial of Service DoS attack when the power operator ^ is used with a BigDecimal or BigInteger operand and a large exponent value. Spring Framework 7.0.0 - 7.0.8 Spring Framework 6.2.0 -...

CVE-2026-47886

Applications that evaluate user-supplied Spring Expression Language SpEL expressions may be vulnerable to a Denial of Service DoS attack when the power operator ^ is used with a BigDecimal or BigInteger operand and a large exponent value. Spring Framework 7.0.0 - 7.0.8 Spring Framework 6.2.0 -...

CVE-2026-47886

Applications that evaluate user-supplied Spring Expression Language SpEL expressions may be vulnerable to a Denial of Service DoS attack when the power operator ^ is used with a BigDecimal or BigInteger operand and a large exponent value. Spring Framework 7.0.0 - 7.0.8 Spring Framework 6.2.0 -...

pyasn1: pyasn1: Denial of Service via crafted ASN.1 REAL values

A remote attacker can exploit this by providing specially crafted BER/CER/DER-encoded ASN.1 data with a large exponent in the REAL value. When the application subsequently prints, logs, compares, or performs arithmetic on the decoded value, this can cause excessive CPU and memory consumption,...

pyasn1: pyasn1: Denial of Service via crafted ASN.1 REAL values

A remote attacker can exploit this by providing specially crafted BER/CER/DER-encoded ASN.1 data with a large exponent in the REAL value. When the application subsequently prints, logs, compares, or performs arithmetic on the decoded value, this can cause excessive CPU and memory consumption,...