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Vulnerability details: VCID-hghf-rym3-3ufa
Vulnerability ID VCID-hghf-rym3-3ufa
Aliases GHSA-v8w9-8mx6-g223
Summary Hono vulnerable to Prototype Pollution possible through __proto__ key allowed in parseBody({ dot: true })
Status Published
Exploitability None
Weighted Severity None
Risk None
Affected and Fixed Packages Package Details
Weaknesses (3)
CWE-1321 Improperly Controlled Modification of Object Prototype Attributes ('Prototype Pollution')
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
cvssv3.1_qr MODERATE https://github.com/advisories/GHSA-v8w9-8mx6-g223
cvssv3.1 4.8 https://github.com/honojs/hono
generic_textual MODERATE https://github.com/honojs/hono
cvssv3.1 4.8 https://github.com/honojs/hono/commit/ef902257e0beacbb83d2a9549b3b83e03514a6fe
generic_textual MODERATE https://github.com/honojs/hono/commit/ef902257e0beacbb83d2a9549b3b83e03514a6fe
cvssv3.1 4.8 https://github.com/honojs/hono/security/advisories/GHSA-v8w9-8mx6-g223
cvssv3.1_qr MODERATE https://github.com/honojs/hono/security/advisories/GHSA-v8w9-8mx6-g223
generic_textual MODERATE https://github.com/honojs/hono/security/advisories/GHSA-v8w9-8mx6-g223
Reference id Reference type URL
https://github.com/honojs/hono
https://github.com/honojs/hono/commit/ef902257e0beacbb83d2a9549b3b83e03514a6fe
GHSA-v8w9-8mx6-g223 https://github.com/advisories/GHSA-v8w9-8mx6-g223
GHSA-v8w9-8mx6-g223 https://github.com/honojs/hono/security/advisories/GHSA-v8w9-8mx6-g223
No exploits are available.
Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:N Found at https://github.com/honojs/hono
Attack Vector (AV) Attack Complexity (AC) Privileges Required (PR) User Interaction (UI) Scope (S) Confidentiality Impact (C) Integrity Impact (I) Availability Impact (A)

network

adjacent_network

local

physical

low

high

none

low

high

none

required

unchanged

changed

high

low

none

high

low

none

high

low

none
Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:N Found at https://github.com/honojs/hono/commit/ef902257e0beacbb83d2a9549b3b83e03514a6fe
Attack Vector (AV) Attack Complexity (AC) Privileges Required (PR) User Interaction (UI) Scope (S) Confidentiality Impact (C) Integrity Impact (I) Availability Impact (A)

network

adjacent_network

local

physical

low

high

none

low

high

none

required

unchanged

changed

high

low

none

high

low

none

high

low

none
Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:N Found at https://github.com/honojs/hono/security/advisories/GHSA-v8w9-8mx6-g223
Attack Vector (AV) Attack Complexity (AC) Privileges Required (PR) User Interaction (UI) Scope (S) Confidentiality Impact (C) Integrity Impact (I) Availability Impact (A)

network

adjacent_network

local

physical

low

high

none

low

high

none

required

unchanged

changed

high

low

none

high

low

none

high

low

none

No EPSS data available for this vulnerability.

Date Actor Action Source VulnerableCode Version
2026-06-11T20:38:36.130252+00:00 GHSA Importer Import https://github.com/advisories/GHSA-v8w9-8mx6-g223 38.6.0