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Bump hono from 4.12.18 to 4.12.21#18

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May 19, 2026
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Bump hono from 4.12.18 to 4.12.21#18
ben-harris-5 merged 1 commit into
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dependabot/npm_and_yarn/hono-4.12.19

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@dependabot dependabot Bot commented on behalf of github May 19, 2026

Bumps hono from 4.12.18 to 4.12.21.

Release notes

Sourced from hono's releases.

v4.12.21

Security fixes

This release includes fixes for the following security issues:

app.mount() strips mount prefix using undecoded path, causing incorrect routing for percent-encoded paths

Affects: app.mount(). Fixes prefix stripping using the raw URL pathname instead of the decoded path, where percent-encoded characters in the mount prefix or path could cause the prefix to be removed at the wrong position, resulting in the sub-application receiving an incorrect path. GHSA-2gcr-mfcq-wcc3

IP Restriction bypasses static deny rules for non-canonical IPv6

Affects: hono/ip-restriction. Fixes IP address comparison using string equality, where non-canonical IPv6 representations of a denied address — such as compressed forms or hex-notation IPv4-mapped addresses — could bypass static deny rules. GHSA-xrhx-7g5j-rcj5

Cookie helper does not sanitize sameSite and priority, allowing Set-Cookie injection

Affects: hono/cookie. Fixes missing validation of sameSite and priority options against injection characters (;, \r, \n), where user-controlled input passed to either option could inject additional attributes into the Set-Cookie response header. GHSA-3hrh-pfw6-9m5x

JWT middleware accepts any Authorization scheme, not only Bearer

Affects: hono/jwt, hono/jwk. Fixes missing scheme validation in the Authorization header, where any two-part header value was accepted regardless of the scheme name, allowing non-Bearer schemes to pass JWT authentication. GHSA-f577-qrjj-4474


Users who use app.mount(), hono/ip-restriction, hono/cookie, or hono/jwt/hono/jwk are encouraged to upgrade to this version.

v4.12.20

What's Changed

New Contributors

Full Changelog: honojs/hono@v4.12.19...v4.12.20

v4.12.19

What's Changed

New Contributors

Full Changelog: honojs/hono@v4.12.18...v4.12.19

Commits

@dependabot dependabot Bot added dependencies Pull requests that update a dependency file javascript Pull requests that update javascript code labels May 19, 2026
Bumps [hono](https://github.com/honojs/hono) from 4.12.18 to 4.12.21.
- [Release notes](https://github.com/honojs/hono/releases)
- [Commits](honojs/hono@v4.12.18...v4.12.21)

---
updated-dependencies:
- dependency-name: hono
  dependency-version: 4.12.19
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

Signed-off-by: dependabot[bot] <support@github.com>
@dependabot dependabot Bot changed the title Bump hono from 4.12.18 to 4.12.19 Bump hono from 4.12.18 to 4.12.21 May 19, 2026
@dependabot dependabot Bot force-pushed the dependabot/npm_and_yarn/hono-4.12.19 branch from fad9c8f to 55f5e56 Compare May 19, 2026 15:54
@ben-harris-5 ben-harris-5 merged commit b5f9f2b into main May 19, 2026
@dependabot dependabot Bot deleted the dependabot/npm_and_yarn/hono-4.12.19 branch May 19, 2026 16:00
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