CVE Explorer
CVE-2026-27496
n8n is an open source workflow automation platform. Prior to versions 1.123.22, 2.9.3, and 2.10.1, an authenticated user with permission to create or modify workflows could use the JavaScript Task Runner to allocate uninitialized memory buffers. Uninitialized buffers may contain residual data from the same Node.js process — including data from prior requests, tasks, secrets, or tokens — resulting in information disclosure of sensitive in-process data. Task Runners must be enabled using `N8N_RUNN
Known exploited
Not asserted
Disputed
No
Stale source
No
Conflicts
0
Affected products and versions
1 source assertion{"product":"n8n","vendor":"n8n-io","versions":[{"status":"affected","version":"< 1.123.22"},{"status":"affected","version":">= 2.0.0-rc.0, < 2.9.3"},{"status":"affected","version":">= 2.10.0, < 2.10.1"}]}
- cve_program_cvelist_v5affectedurn:baitaphish:normalized-source-record:v2:837f2ca92d6aa3346971d05c01b1d9e26617bcac617c6cea02648c7fdf03b9ca · sha256:b4c49076ae80f401… · /containers/cna/affected/0
Provider-owned CVSS observations
1 source assertion{"metric":{"attackComplexity":"LOW","attackRequirements":"NONE","attackVector":"NETWORK","baseScore":7.1,"baseSeverity":"HIGH","privilegesRequired":"LOW","subAvailabilityImpact":"NONE","subConfidentialityImpact":"NONE","subIntegrityImpact":"NONE","userInteraction":"NONE","vectorString":"CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N","version":"4.0","vulnAvailabilityImpact":"NONE","vulnConfidentialityImpact":"HIGH","vulnIntegrityImpact":"NONE"},"metric_type":"cvssV4_0"}
- cve_program_cvelist_v5cvssurn:baitaphish:normalized-source-record:v2:837f2ca92d6aa3346971d05c01b1d9e26617bcac617c6cea02648c7fdf03b9ca · sha256:b4c49076ae80f401… · /containers/cna/metrics/0/cvssV4_0
CWE assertions
1 source assertion{"cweId":"CWE-908","description":"CWE-908: Use of Uninitialized Resource","lang":"en","type":"CWE"}
- cve_program_cvelist_v5cweurn:baitaphish:normalized-source-record:v2:837f2ca92d6aa3346971d05c01b1d9e26617bcac617c6cea02648c7fdf03b9ca · sha256:b4c49076ae80f401… · /containers/cna/problemTypes/0/descriptions/0
Source references
3 source assertions{"name":"https://docs.n8n.io/hosting/configuration/task-runners","tags":["x_refsource_MISC"],"url":"https://docs.n8n.io/hosting/configuration/task-runners"}
- cve_program_cvelist_v5referenceurn:baitaphish:normalized-source-record:v2:837f2ca92d6aa3346971d05c01b1d9e26617bcac617c6cea02648c7fdf03b9ca · sha256:b4c49076ae80f401… · /containers/cna/references/1
{"name":"https://docs.n8n.io/hosting/securing/blocking-nodes","tags":["x_refsource_MISC"],"url":"https://docs.n8n.io/hosting/securing/blocking-nodes"}
- cve_program_cvelist_v5referenceurn:baitaphish:normalized-source-record:v2:837f2ca92d6aa3346971d05c01b1d9e26617bcac617c6cea02648c7fdf03b9ca · sha256:b4c49076ae80f401… · /containers/cna/references/2
{"name":"https://github.com/n8n-io/n8n/security/advisories/GHSA-xvh5-5qg4-x9qp","tags":["x_refsource_CONFIRM"],"url":"https://github.com/n8n-io/n8n/security/advisories/GHSA-xvh5-5qg4-x9qp"}
- cve_program_cvelist_v5referenceurn:baitaphish:normalized-source-record:v2:837f2ca92d6aa3346971d05c01b1d9e26617bcac617c6cea02648c7fdf03b9ca · sha256:b4c49076ae80f401… · /containers/cna/references/0
Attribution and limitations
- CVE Program CVEList V5: Reproduce the MITRE copyright designation and CVE license in copies. Source →
Provider severity values are preserved separately. Baitaphish does not convert them into a risk rating, infer affected products, or treat EPSS as observed exploitation.