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Vulnerability details: VCID-mhk4-vf4t-47g7
Vulnerability ID VCID-mhk4-vf4t-47g7
Aliases CVE-2025-55207
GHSA-9x9c-ghc5-jhw9
Summary @astrojs/node's trailing slash handling causes open redirect issue Following https://github.com/withastro/astro/security/advisories/GHSA-cq8c-xv66-36gw, there's still an Open Redirect vulnerability in a subset of Astro deployment scenarios.
Status Published
Exploitability 0.5
Weighted Severity 6.2
Risk 3.1
Affected and Fixed Packages Package Details
Weaknesses (3)
CWE-601 URL Redirection to Untrusted Site ('Open Redirect')
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 0.00042 https://api.first.org/data/v1/epss?cve=CVE-2025-55207
epss 0.00042 https://api.first.org/data/v1/epss?cve=CVE-2025-55207
epss 0.00042 https://api.first.org/data/v1/epss?cve=CVE-2025-55207
cvssv4 5.5 https://github.com/withastro/astro
generic_textual MODERATE https://github.com/withastro/astro
cvssv4 5.5 https://github.com/withastro/astro/commit/5fc3c599cacb0172cc7d8e1202a5f2e8685d7ef2
generic_textual MODERATE https://github.com/withastro/astro/commit/5fc3c599cacb0172cc7d8e1202a5f2e8685d7ef2
ssvc Track https://github.com/withastro/astro/commit/5fc3c599cacb0172cc7d8e1202a5f2e8685d7ef2
cvssv4 5.5 https://github.com/withastro/astro/security/advisories/GHSA-9x9c-ghc5-jhw9
generic_textual MODERATE https://github.com/withastro/astro/security/advisories/GHSA-9x9c-ghc5-jhw9
ssvc Track https://github.com/withastro/astro/security/advisories/GHSA-9x9c-ghc5-jhw9
cvssv4 5.5 https://nvd.nist.gov/vuln/detail/CVE-2025-55207
generic_textual MODERATE https://nvd.nist.gov/vuln/detail/CVE-2025-55207
Reference id Reference type URL
https://api.first.org/data/v1/epss?cve=CVE-2025-55207
https://github.com/withastro/astro
https://github.com/withastro/astro/commit/5fc3c599cacb0172cc7d8e1202a5f2e8685d7ef2
CVE-2025-55207 https://nvd.nist.gov/vuln/detail/CVE-2025-55207
GHSA-9x9c-ghc5-jhw9 https://github.com/advisories/GHSA-9x9c-ghc5-jhw9
GHSA-9x9c-ghc5-jhw9 https://github.com/withastro/astro/security/advisories/GHSA-9x9c-ghc5-jhw9
No exploits are available.
Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:N/SC:L/SI:L/SA:N/E:P Found at https://github.com/withastro/astro
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:N/UI:N/VC:N/VI:N/VA:N/SC:L/SI:L/SA:N/E:P Found at https://github.com/withastro/astro/commit/5fc3c599cacb0172cc7d8e1202a5f2e8685d7ef2
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

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physical

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Vector: SSVCv2/E:P/A:N/T:P/P:M/B:A/M:M/D:T/2025-08-15T19:10:24Z/ Found at https://github.com/withastro/astro/commit/5fc3c599cacb0172cc7d8e1202a5f2e8685d7ef2
Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:N/SC:L/SI:L/SA:N/E:P Found at https://github.com/withastro/astro/security/advisories/GHSA-9x9c-ghc5-jhw9
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

high

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present

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Vector: SSVCv2/E:P/A:N/T:P/P:M/B:A/M:M/D:T/2025-08-15T19:10:24Z/ Found at https://github.com/withastro/astro/security/advisories/GHSA-9x9c-ghc5-jhw9
Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:N/SC:L/SI:L/SA:N/E:P Found at https://nvd.nist.gov/vuln/detail/CVE-2025-55207
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

high

none

present

none

low

high

none

passive

active

high

low

none

high

low

none

high

low

none

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low

none

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Exploit Prediction Scoring System (EPSS)
Percentile 0.1321
EPSS Score 0.00042
Published At June 5, 2026, 12:55 p.m.
Date Actor Action Source VulnerableCode Version
2026-06-04T16:24:38.979128+00:00 GitLab Importer Import https://gitlab.com/gitlab-org/advisories-community/-/blob/main/npm/@astrojs/node/CVE-2025-55207.yml 38.6.0