CVE Explorer

CVE-2026-54289

Hono is a Web application framework that provides support for any JavaScript runtime. Prior to 4.12.25, on AWS Lambda@Edge, CloudFront delivers a request header that appears more than once as several separate entries. The adapter writes each value with Headers.set instead of Headers.append, so every value overwrites the previous one and only the last reaches the application. Repeated request headers such as X-Forwarded-For, Forwarded, and Via are silently truncated to a single value. Request mid

Lifecycle PUBLISHED1 preserved revisionFact urn:baitaphish:canonical-cve-fact-revision:v2:8e3aeafb434d163389f9d1a36b7029fc57d34249c0fa157d61aa3011d5c50657

Known exploited

Not asserted

Disputed

Stale source

Conflicts

Affected products and versions

1 source assertion

{"product":"hono","vendor":"honojs","versions":[{"status":"affected","version":"< 4.12.25"}]}

cve_program_cvelist_v5affected
urn:baitaphish:normalized-source-record:v2:fce90011ae6b029dd846bd19d7a5ed2f8cbd1066bf7fdf28d58e63795727ede1 · sha256:6b2e103bad8b2b59… · /containers/cna/affected/0

Provider-owned CVSS observations

1 source assertion

{"metric":{"attackComplexity":"HIGH","attackVector":"NETWORK","availabilityImpact":"NONE","baseScore":4.8,"baseSeverity":"MEDIUM","confidentialityImpact":"LOW","integrityImpact":"LOW","privilegesRequired":"NONE","scope":"UNCHANGED","userInteraction":"NONE","vectorString":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:N","version":"3.1"},"metric_type":"cvssV3_1"}

cve_program_cvelist_v5cvss
urn:baitaphish:normalized-source-record:v2:fce90011ae6b029dd846bd19d7a5ed2f8cbd1066bf7fdf28d58e63795727ede1 · sha256:6b2e103bad8b2b59… · /containers/cna/metrics/0/cvssV3_1

CWE assertions

1 source assertion

{"cweId":"CWE-348","description":"CWE-348: Use of Less Trusted Source","lang":"en","type":"CWE"}

cve_program_cvelist_v5cwe
urn:baitaphish:normalized-source-record:v2:fce90011ae6b029dd846bd19d7a5ed2f8cbd1066bf7fdf28d58e63795727ede1 · sha256:6b2e103bad8b2b59… · /containers/cna/problemTypes/0/descriptions/0

Source references

2 source assertions

{"name":"https://github.com/honojs/hono/security/advisories/GHSA-wgpf-jwqj-8h8p","tags":["x_refsource_CONFIRM"],"url":"https://github.com/honojs/hono/security/advisories/GHSA-wgpf-jwqj-8h8p"}

cve_program_cvelist_v5reference
urn:baitaphish:normalized-source-record:v2:fce90011ae6b029dd846bd19d7a5ed2f8cbd1066bf7fdf28d58e63795727ede1 · sha256:6b2e103bad8b2b59… · /containers/cna/references/0

{"tags":["exploit"],"url":"https://github.com/honojs/hono/security/advisories/GHSA-wgpf-jwqj-8h8p"}

cve_program_cvelist_v5reference
urn:baitaphish:normalized-source-record:v2:fce90011ae6b029dd846bd19d7a5ed2f8cbd1066bf7fdf28d58e63795727ede1 · sha256:6b2e103bad8b2b59… · /containers/adp/0/references/0

Attribution and limitations

CVE Program CVEList V5: Reproduce the MITRE copyright designation and CVE license in copies. Source →

Provider severity values are preserved separately. Baitaphish does not convert them into a risk rating, infer affected products, or treat EPSS as observed exploitation.

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