Staging Environment: Content and features may be unstable or change without notice.
Search for vulnerabilities
Vulnerability details: VCID-af7v-p695-jqgr
Vulnerability ID VCID-af7v-p695-jqgr
Aliases CVE-2024-43787
GHSA-rpfr-3m35-5vx5
Summary Hono is a Web application framework that provides support for any JavaScript runtime. Hono CSRF middleware can be bypassed using crafted Content-Type header. MIME types are case insensitive, but isRequestedByFormElementRe only matches lower-case. As a result, attacker can bypass csrf middleware using upper-case form-like MIME type. This vulnerability is fixed in 4.5.8.
Status Published
Exploitability 0.5
Weighted Severity 4.5
Risk 2.2
Affected and Fixed Packages Package Details
Weaknesses (3)
CWE-352 Cross-Site Request Forgery (CSRF)
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 0.00082 https://api.first.org/data/v1/epss?cve=CVE-2024-43787
epss 0.00082 https://api.first.org/data/v1/epss?cve=CVE-2024-43787
cvssv3.1_qr LOW https://github.com/advisories/GHSA-rpfr-3m35-5vx5
cvssv3.1 5.0 https://github.com/honojs/hono
cvssv4 2.3 https://github.com/honojs/hono
generic_textual LOW https://github.com/honojs/hono
cvssv3.1 5 https://github.com/honojs/hono/blob/b0af71fbcc6dbe44140ea76f16d68dfdb32a99a0/src/middleware/csrf/index.ts#L16-L17
cvssv3.1 5.0 https://github.com/honojs/hono/blob/b0af71fbcc6dbe44140ea76f16d68dfdb32a99a0/src/middleware/csrf/index.ts#L16-L17
cvssv4 2.3 https://github.com/honojs/hono/blob/b0af71fbcc6dbe44140ea76f16d68dfdb32a99a0/src/middleware/csrf/index.ts#L16-L17
generic_textual LOW https://github.com/honojs/hono/blob/b0af71fbcc6dbe44140ea76f16d68dfdb32a99a0/src/middleware/csrf/index.ts#L16-L17
ssvc Track https://github.com/honojs/hono/blob/b0af71fbcc6dbe44140ea76f16d68dfdb32a99a0/src/middleware/csrf/index.ts#L16-L17
cvssv3.1 5 https://github.com/honojs/hono/commit/41ce840379516410dee60c783142e05bb5a22449
cvssv3.1 5.0 https://github.com/honojs/hono/commit/41ce840379516410dee60c783142e05bb5a22449
cvssv4 2.3 https://github.com/honojs/hono/commit/41ce840379516410dee60c783142e05bb5a22449
generic_textual LOW https://github.com/honojs/hono/commit/41ce840379516410dee60c783142e05bb5a22449
ssvc Track https://github.com/honojs/hono/commit/41ce840379516410dee60c783142e05bb5a22449
cvssv3.1 5 https://github.com/honojs/hono/security/advisories/GHSA-rpfr-3m35-5vx5
cvssv3.1 5.0 https://github.com/honojs/hono/security/advisories/GHSA-rpfr-3m35-5vx5
cvssv3.1_qr LOW https://github.com/honojs/hono/security/advisories/GHSA-rpfr-3m35-5vx5
cvssv4 2.3 https://github.com/honojs/hono/security/advisories/GHSA-rpfr-3m35-5vx5
generic_textual LOW https://github.com/honojs/hono/security/advisories/GHSA-rpfr-3m35-5vx5
ssvc Track https://github.com/honojs/hono/security/advisories/GHSA-rpfr-3m35-5vx5
cvssv3.1 5.0 https://nvd.nist.gov/vuln/detail/CVE-2024-43787
cvssv4 2.3 https://nvd.nist.gov/vuln/detail/CVE-2024-43787
generic_textual LOW https://nvd.nist.gov/vuln/detail/CVE-2024-43787
Reference id Reference type URL
https://api.first.org/data/v1/epss?cve=CVE-2024-43787
https://github.com/honojs/hono
41ce840379516410dee60c783142e05bb5a22449 https://github.com/honojs/hono/commit/41ce840379516410dee60c783142e05bb5a22449
CVE-2024-43787 https://nvd.nist.gov/vuln/detail/CVE-2024-43787
GHSA-rpfr-3m35-5vx5 https://github.com/advisories/GHSA-rpfr-3m35-5vx5
GHSA-rpfr-3m35-5vx5 https://github.com/honojs/hono/security/advisories/GHSA-rpfr-3m35-5vx5
index.ts#L16-L17 https://github.com/honojs/hono/blob/b0af71fbcc6dbe44140ea76f16d68dfdb32a99a0/src/middleware/csrf/index.ts#L16-L17
No exploits are available.
Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:L/I:L/A:L 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:4.0/AV:N/AC:L/AT:P/PR:N/UI:P/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N Found at https://github.com/honojs/hono
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

high

low

none

high

low

none

high

low

none
Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:L/I:L/A:L Found at https://github.com/honojs/hono/blob/b0af71fbcc6dbe44140ea76f16d68dfdb32a99a0/src/middleware/csrf/index.ts#L16-L17
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:R/S:U/C:L/I:L/A:L Found at https://github.com/honojs/hono/blob/b0af71fbcc6dbe44140ea76f16d68dfdb32a99a0/src/middleware/csrf/index.ts#L16-L17
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:4.0/AV:N/AC:L/AT:P/PR:N/UI:P/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N Found at https://github.com/honojs/hono/blob/b0af71fbcc6dbe44140ea76f16d68dfdb32a99a0/src/middleware/csrf/index.ts#L16-L17
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

high

low

none

high

low

none

high

low

none
Vector: SSVCv2/E:P/A:N/T:P/P:M/B:A/M:M/D:T/2024-08-22T15:39:07Z/ Found at https://github.com/honojs/hono/blob/b0af71fbcc6dbe44140ea76f16d68dfdb32a99a0/src/middleware/csrf/index.ts#L16-L17
Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:L/I:L/A:L Found at https://github.com/honojs/hono/commit/41ce840379516410dee60c783142e05bb5a22449
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:R/S:U/C:L/I:L/A:L Found at https://github.com/honojs/hono/commit/41ce840379516410dee60c783142e05bb5a22449
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:4.0/AV:N/AC:L/AT:P/PR:N/UI:P/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N Found at https://github.com/honojs/hono/commit/41ce840379516410dee60c783142e05bb5a22449
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

high

low

none

high

low

none

high

low

none
Vector: SSVCv2/E:P/A:N/T:P/P:M/B:A/M:M/D:T/2024-08-22T15:39:07Z/ Found at https://github.com/honojs/hono/commit/41ce840379516410dee60c783142e05bb5a22449
Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:L/I:L/A:L Found at https://github.com/honojs/hono/security/advisories/GHSA-rpfr-3m35-5vx5
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:R/S:U/C:L/I:L/A:L Found at https://github.com/honojs/hono/security/advisories/GHSA-rpfr-3m35-5vx5
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:4.0/AV:N/AC:L/AT:P/PR:N/UI:P/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N Found at https://github.com/honojs/hono/security/advisories/GHSA-rpfr-3m35-5vx5
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

high

low

none

high

low

none

high

low

none
Vector: SSVCv2/E:P/A:N/T:P/P:M/B:A/M:M/D:T/2024-08-22T15:39:07Z/ Found at https://github.com/honojs/hono/security/advisories/GHSA-rpfr-3m35-5vx5
Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:L/I:L/A:L Found at https://nvd.nist.gov/vuln/detail/CVE-2024-43787
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:4.0/AV:N/AC:L/AT:P/PR:N/UI:P/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N Found at https://nvd.nist.gov/vuln/detail/CVE-2024-43787
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

high

low

none

high

low

none

high

low

none
Exploit Prediction Scoring System (EPSS)
Percentile 0.24059
EPSS Score 0.00082
Published At June 11, 2026, 12:55 p.m.
Date Actor Action Source VulnerableCode Version
2026-06-10T18:26:55.749218+00:00 Vulnrichment Import https://github.com/cisagov/vulnrichment/blob/develop/2024/43xxx/CVE-2024-43787.json 38.6.0