CVE-2026-56360

MediumCVSS 4.0/10Last modified Oct 25, 2026

Description

n8n before versions 1.123.18 and 2.6.2 fails to verify HMAC-SHA256 signatures on Zendesk webhooks in the ZendeskTrigger node. Attackers who know the webhook URL can send unsigned POST requests to trigger workflows with arbitrary malicious data.

Metrics

CVSS 3.1 4.0/10CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:N/I:L/A:N

Weakness enumeration

CWE-290

Affected software

VendorProductVersions
n8nn8n< 1.123.18; >= 2.0.0, < 2.6.2

References

Timeline

Published
Jul 8, 2026
Last modified
Oct 25, 2026
NVD status
Analyzed

Related CVEs from 2026

CVE-2026-563617.1ImageMagick before 7.1.2-19 contains an off-by-one error in morphology validation allowing out-of-bounds heap buffer reads. Attackers can trCVE-2026-563624.2ImageMagick before 7.1.2-15 contains a heap-buffer-overflow read vulnerability in GetPixelIndex caused by OpenPixelCache updating image chanCVE-2026-563633.3ImageMagick before 7.1.2-22 contains a division by zero vulnerability in binomial kernel processing that allows attackers to cause denial ofCVE-2026-563641.9ImageMagick before 7.1.2-13 contains a memory leak vulnerability in LoadOpenCLDeviceBenchmark() function when parsing malformed OpenCL devicCVE-2026-563655.3ImageMagick before 7.1.2-19 contains a memory leak vulnerability in the PNG encoder when writing MNG images. Attackers can trigger the encodCVE-2026-563666.5ImageMagick before 7.1.2-18 contains a memory leak vulnerability in the META reader when processing APP1JPEG input paths. Attackers can trigCVE-2026-563679.1ImageMagick before 7.1.2-15 and 6.9.x before 6.9.13-40 contains an integer overflow in the PSB (PSD v2) RLE decoding path (ReadPSDChannelRLECVE-2026-563687.5ImageMagick before 7.1.2-15 contains a memory leak vulnerability in multiple coders that write raw pixel data where allocated objects are noCVE-2026-563693.7ImageMagick before 7.1.2-22 contains an information disclosure vulnerability in the PasskeyEncipherImage method due to AES-CTR nonce reuse. CVE-2026-56377.3A security vulnerability has been detected in projectworlds Car Rental System 1.0. This vulnerability affects unknown code of the file /messCVE-2026-563707.8ImageMagick before 7.1.2-19 contains an out-of-bounds access vulnerability in ConnectedComponentsImage() when processing connected-componentCVE-2026-563715.3ImageMagick before 7.1.2-15 and 6.9.13-40 contains a memory leak in coders/txt.c when processing TXT files with texture attributes: the text