Hono - Missing Cookie Name Validation in setCookie()

Publishers link these advisories through the identifiers shown below. A shared identifier or date alone does not tell you whether your software is affected or whether the advisories describe the same cause.

CVE-2026-56762 · CVE overview and exploitation status

EUVD-2026-38443

GHSA-55cm-p4ww-685g

GHSA-26pp-8wgv-hjvm

cve-program · CVE-2026-56762

• https://github.com/honojs/hono/security/advisories/GHSA-26pp-8wgv-hjvm
• https://www.vulncheck.com/advisories/hono-missing-cookie-name-validation-in-setcookie

euvd · EUVD-2026-38443

• https://github.com/honojs/hono/security/advisories/GHSA-26pp-8wgv-hjvm
• https://www.vulncheck.com/advisories/hono-missing-cookie-name-validation-in-setcookie

nvd · CVE-2026-56762

• https://github.com/honojs/hono/security/advisories/GHSA-26pp-8wgv-hjvm
• https://www.vulncheck.com/advisories/hono-missing-cookie-name-validation-in-setcookie

osv · GHSA-26pp-8wgv-hjvm

• https://github.com/honojs/hono/security/advisories/GHSA-26pp-8wgv-hjvm
• https://nvd.nist.gov/vuln/detail/CVE-2026-56762
• https://github.com/honojs/hono/commit/a586cd72e3f6122792e631ecf1817e5cabb803ec
• https://github.com/honojs/hono
• https://github.com/honojs/hono/releases/tag/v4.12.12
• https://www.vulncheck.com/advisories/hono-missing-cookie-name-validation-in-setcookie

osv · GHSA-55cm-p4ww-685g

• https://github.com/honojs/hono/security/advisories/GHSA-26pp-8wgv-hjvm
• https://nvd.nist.gov/vuln/detail/CVE-2026-56762
• https://www.vulncheck.com/advisories/hono-missing-cookie-name-validation-in-setcookie

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