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Vulnerability details: VCID-cy8m-aw8f-zkfx
Vulnerability ID VCID-cy8m-aw8f-zkfx
Aliases CVE-2026-25051
GHSA-825q-w924-xhgx
Summary n8n is an open source workflow automation platform. Prior to version 1.123.2, a Cross-Site Scripting (XSS) vulnerability has been identified in the handling of webhook responses and related HTTP endpoints. Under certain conditions, the Content Security Policy (CSP) sandbox protection intended to isolate HTML responses may not be applied correctly. An authenticated user with permission to create or modify workflows could abuse this to execute malicious scripts with same-origin privileges when other users interact with the crafted workflow. This could lead to session hijacking and account takeover. This issue has been patched in version 1.123.2.
Status Published
Exploitability 0.5
Weighted Severity 8.0
Risk 4.0
Affected and Fixed Packages Package Details
Weaknesses (3)
CWE-79 Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
CWE-937 OWASP Top Ten 2013 Category A9 - Using Components with Known Vulnerabilities
CWE-1035 OWASP Top Ten 2017 Category A9 - Using Components with Known Vulnerabilities
System Score Found at
epss 0.00016 https://api.first.org/data/v1/epss?cve=CVE-2026-25051
cvssv3.1_qr HIGH https://github.com/advisories/GHSA-825q-w924-xhgx
cvssv4 8.5 https://github.com/n8n-io/n8n
generic_textual HIGH https://github.com/n8n-io/n8n
cvssv4 8.5 https://github.com/n8n-io/n8n/commit/ced34c0f93ab4c759a56065965986094d8ef7323
generic_textual HIGH https://github.com/n8n-io/n8n/commit/ced34c0f93ab4c759a56065965986094d8ef7323
ssvc Track https://github.com/n8n-io/n8n/commit/ced34c0f93ab4c759a56065965986094d8ef7323
cvssv4 8.5 https://github.com/n8n-io/n8n/commit/e8cf4d6bb3af94dc296cbb67bc3dd20e9b508ac9
generic_textual HIGH https://github.com/n8n-io/n8n/commit/e8cf4d6bb3af94dc296cbb67bc3dd20e9b508ac9
ssvc Track https://github.com/n8n-io/n8n/commit/e8cf4d6bb3af94dc296cbb67bc3dd20e9b508ac9
cvssv3.1_qr HIGH https://github.com/n8n-io/n8n/security/advisories/GHSA-825q-w924-xhgx
cvssv4 8.5 https://github.com/n8n-io/n8n/security/advisories/GHSA-825q-w924-xhgx
generic_textual HIGH https://github.com/n8n-io/n8n/security/advisories/GHSA-825q-w924-xhgx
ssvc Track https://github.com/n8n-io/n8n/security/advisories/GHSA-825q-w924-xhgx
cvssv4 8.5 https://nvd.nist.gov/vuln/detail/CVE-2026-25051
generic_textual HIGH https://nvd.nist.gov/vuln/detail/CVE-2026-25051
Reference id Reference type URL
https://api.first.org/data/v1/epss?cve=CVE-2026-25051
https://github.com/n8n-io/n8n
ced34c0f93ab4c759a56065965986094d8ef7323 https://github.com/n8n-io/n8n/commit/ced34c0f93ab4c759a56065965986094d8ef7323
CVE-2026-25051 https://nvd.nist.gov/vuln/detail/CVE-2026-25051
e8cf4d6bb3af94dc296cbb67bc3dd20e9b508ac9 https://github.com/n8n-io/n8n/commit/e8cf4d6bb3af94dc296cbb67bc3dd20e9b508ac9
GHSA-825q-w924-xhgx https://github.com/advisories/GHSA-825q-w924-xhgx
GHSA-825q-w924-xhgx https://github.com/n8n-io/n8n/security/advisories/GHSA-825q-w924-xhgx
No exploits are available.
Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:P/VC:H/VI:H/VA:N/SC:L/SI:L/SA:N Found at https://github.com/n8n-io/n8n
Attack Vector (AV) Attack Complexity (AC) Attack Requirements (AT) Privileges Required (PR) User Interaction (UI) Vulnerable System Impact Confidentiality (VC) Vulnerable System Impact Integrity (VI) Vulnerable System Impact Availability (VA) Subsequent System Impact Confidentiality (SC) Subsequent System Impact Integrity (SI) Subsequent System Impact Availability (SA)

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Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:P/VC:H/VI:H/VA:N/SC:L/SI:L/SA:N Found at https://github.com/n8n-io/n8n/commit/ced34c0f93ab4c759a56065965986094d8ef7323
Attack Vector (AV) Attack Complexity (AC) Attack Requirements (AT) Privileges Required (PR) User Interaction (UI) Vulnerable System Impact Confidentiality (VC) Vulnerable System Impact Integrity (VI) Vulnerable System Impact Availability (VA) Subsequent System Impact Confidentiality (SC) Subsequent System Impact Integrity (SI) Subsequent System Impact Availability (SA)

network

adjacent

local

physical

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none

present

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Vector: SSVCv2/E:N/A:N/T:P/P:M/B:A/M:M/D:T/2026-02-05T14:20:22Z/ Found at https://github.com/n8n-io/n8n/commit/ced34c0f93ab4c759a56065965986094d8ef7323
Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:P/VC:H/VI:H/VA:N/SC:L/SI:L/SA:N Found at https://github.com/n8n-io/n8n/commit/e8cf4d6bb3af94dc296cbb67bc3dd20e9b508ac9
Attack Vector (AV) Attack Complexity (AC) Attack Requirements (AT) Privileges Required (PR) User Interaction (UI) Vulnerable System Impact Confidentiality (VC) Vulnerable System Impact Integrity (VI) Vulnerable System Impact Availability (VA) Subsequent System Impact Confidentiality (SC) Subsequent System Impact Integrity (SI) Subsequent System Impact Availability (SA)

network

adjacent

local

physical

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present

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Vector: SSVCv2/E:N/A:N/T:P/P:M/B:A/M:M/D:T/2026-02-05T14:20:22Z/ Found at https://github.com/n8n-io/n8n/commit/e8cf4d6bb3af94dc296cbb67bc3dd20e9b508ac9
Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:P/VC:H/VI:H/VA:N/SC:L/SI:L/SA:N Found at https://github.com/n8n-io/n8n/security/advisories/GHSA-825q-w924-xhgx
Attack Vector (AV) Attack Complexity (AC) Attack Requirements (AT) Privileges Required (PR) User Interaction (UI) Vulnerable System Impact Confidentiality (VC) Vulnerable System Impact Integrity (VI) Vulnerable System Impact Availability (VA) Subsequent System Impact Confidentiality (SC) Subsequent System Impact Integrity (SI) Subsequent System Impact Availability (SA)

network

adjacent

local

physical

low

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present

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passive

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Vector: SSVCv2/E:N/A:N/T:P/P:M/B:A/M:M/D:T/2026-02-05T14:20:22Z/ Found at https://github.com/n8n-io/n8n/security/advisories/GHSA-825q-w924-xhgx
Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:P/VC:H/VI:H/VA:N/SC:L/SI:L/SA:N Found at https://nvd.nist.gov/vuln/detail/CVE-2026-25051
Attack Vector (AV) Attack Complexity (AC) Attack Requirements (AT) Privileges Required (PR) User Interaction (UI) Vulnerable System Impact Confidentiality (VC) Vulnerable System Impact Integrity (VI) Vulnerable System Impact Availability (VA) Subsequent System Impact Confidentiality (SC) Subsequent System Impact Integrity (SI) Subsequent System Impact Availability (SA)

network

adjacent

local

physical

low

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none

present

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passive

active

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Exploit Prediction Scoring System (EPSS)
Percentile 0.03978
EPSS Score 0.00016
Published At June 11, 2026, 12:55 p.m.
Date Actor Action Source VulnerableCode Version
2026-06-11T16:41:38.726806+00:00 Vulnrichment Import https://github.com/cisagov/vulnrichment/blob/develop/2026/25xxx/CVE-2026-25051.json 38.6.0