CVE-2026-56357 n8n - Webhook Forgery via Missing HMAC-SHA256 Signature Verification in GitHub Webhook Trigger

n8n before 1.123.15 and 2.5.0 contains a webhook forgery vulnerability in the GitHub Webhook Trigger node that fails to implement HMAC-SHA256 signature verification. Attackers who know the webhook URL can send unsigned POST requests to trigger workflows with arbitrary data, spoofing GitHub webhoo...

CVE-2026-56357

n8n’s GitHub Webhook Trigger node is affected in versions before 1.123.15 and 2.5.0 due to missing HMAC-SHA256 signature verification. This allows an attacker who knows the webhook URL to send unsigned POST requests, potentially triggering workflows with arbitrary data and spoofing GitHub webhook...

Malicious code in node-fetch-utils (npm)

--- -= Per source details. Do not edit below this line.=- Source: amazon-inspector 78aef0d64a7d761d2987d27aea462083425e5692475cd81332b7a3152c754308 On Windows, scripts/postinstall.js XOR-decodes a hardcoded C2 host node22.lunes.host:3258, authenticates with a 5-minute rolling HMAC-SHA256 token,...

CVE-2026-47341

Authentication Bypass by Capture-replay vulnerability in Apache APISIX. Attacker can benefit from certain configurations in hmac-auth to re-use a token forever, bypassing expiry. This issue affects Apache APISIX: from 3.11.0 through 3.16.0. Users are recommended to upgrade to version 3.17.0, whic...

EUVD-2026-38024

Authentication Bypass by Capture-replay vulnerability in Apache APISIX. Attacker can benefit from certain configurations in hmac-auth to re-use a token forever, bypassing expiry. This issue affects Apache APISIX: from 3.11.0 through 3.16.0. Users are recommended to upgrade to version 3.17.0, whic...

CVE-2026-47341

CVE-2026-47341 describes an authentication bypass in Apache APISIX due to a capture-replay flaw in the hmac-auth configuration. The issue allows an attacker to reuse a token indefinitely, bypassing expiry, with affected versions 3.11.0 through 3.16.0. The advisory recommends upgrading to 3.17.0, ...

Astra Linux – Vulnerabilities in Linux, Linux-5.10, Linux-5.15, Linux-6.1

In the Linux kernel, the following vulnerability has been resolved: ipv6: sr: Fixed an invalid unregistererrorpath path. The error path of seg6init is incorrect when the CONFIGIPV6SEG6LWTUNNEL configuration option is not defined. In such cases, if seg6hmacinit fails, the genlunregisterfamily...

PT-2026-50887

Name of the Vulnerable Software and Affected Versions Apache APISIX versions 3.11.0 through 3.16.0 Description An authentication bypass exists due to a capture-replay issue. An attacker can leverage specific configurations in the hmac-auth module to reuse a token indefinitely, effectively bypassi...

python-pyjwt: PyJWT: Authentication bypass due to forged JSON Web Tokens

A flaw was found in PyJWT, a Python library for JSON Web Token JWT implementation. When decoding JWTs, the library fails to validate the use of JSON Web Keys JWK in the HMAC algorithm while also supporting asymmetric algorithms. This allows a remote attacker to use the issuer's public key as the...

PyJWT: Public-key JWK accepted as HMAC secret enables forged HS256 tokens when mixed families are allowed

!NOTE Exploitation requires a verifier configured with both symmetric and asymmetric algorithms in algorithms=… and a raw-JSON JWK as the key= argument, both contrary to documented usage, hence the High attack-complexity rating. Summary When the verifier is decoding JSON Web Tokens, while...

RLSA-2026:25237 Important: openssl security update

OpenSSL is a toolkit that implements the Secure Sockets Layer SSL and Transport Layer Security TLS protocols, as well as a full-strength general-purpose cryptography library. Security Fixes: openssl: OpenSSL: Heap buffer overflow due to signed integer overflow in Unicode output sizing CVE-2026-73...

UBUNTU-CVE-2026-9641

Crypt::PBKDF2 versions before 0.261630 for Perl have a weak default algorithm and number of iterations. The default algorithm is HMAC-SHA1, which should only be used for legacy systems. These versions default to using 1000 iterations. Depending on the chosen algorithm, 220,000 to 1,400,000...

CVE-2026-9641 Crypt::PBKDF2 versions before 0.261630 for Perl have a weak default algorithm and number of iterations

Crypt::PBKDF2 versions before 0.261630 for Perl have a weak default algorithm and number of iterations. The default algorithm is HMAC-SHA1, which should only be used for legacy systems. These versions default to using 1000 iterations. Depending on the chosen algorithm, 220,000 to 1,400,000...

SUSE CVE-2026-10143

kafka-python prior to 2.3.2 contains a denial-of-service vulnerability in SCRAM authentication handling that allows a malicious or machine-in-the-middle broker to freeze the client event loop by supplying an excessively large iteration count. In scram.py, ScramClient.processserverfirstmessage...

RockyLinux 9 : openssl (RLSA-2026:25239)

The remote RockyLinux 9 host has packages installed that are affected by multiple vulnerabilities as referenced in the RLSA-2026:25239 advisory. openssl: OpenSSL: Heap buffer overflow due to signed integer overflow in Unicode output sizing CVE-2026-7383 openssl: OpenSSL: Denial of Service due to...

openssl: PKCS#12 Files with PBMAC1 Are Accepted with Short HMAC Keys

A flaw was found in OpenSSL. This vulnerability allows a remote attacker to forge PKCS12 Public-Key Cryptography Standards 12 files that use Password-Based Message Authentication Code 1 PBMAC1 with short HMAC Hash-based Message Authentication Code keys. This can lead to a service accepting...

CVE-2026-10143

CVE-2026-10143 affects kafka-python prior to 2.3.2. The denial‑of‑service arises from ScramClient.process_server_first_message() passing the broker‑provided SCRAM iteration count directly to hashlib.pbkdf2_hmac() without validation in scram.py. This can freeze the client event loop, blocking prod...

PT-2026-48531

Name of the Vulnerable Software and Affected Versions kafka-python versions prior to 2.3.2 Description A denial-of-service issue exists in the SCRAM authentication handling. A malicious or machine-in-the-middle broker can freeze the client event loop by providing an excessively large iteration...

Improper Validation of Integrity Check Value

Overview Affected versions of this package are vulnerable to Improper Validation of Integrity Check Value in PBMAC1PBKDF2HMAC. A user can craft an unencrypted PKCS12 file that uses PBMAC1 authentication specifying a one-byte HMAC key, causing a service that authenticates incoming files by passwor...

Exploit for CVE-2026-52885

TOCTOU: HMAC Checks Disk, Executes from Memory Notepad++ v8...