CVE Explorer

CVE-2026-22817

Hono is a Web application framework that provides support for any JavaScript runtime. Prior to 4.11.4, there is a flaw in Hono’s JWK/JWKS JWT verification middleware allowed the JWT header’s alg value to influence signature verification when the selected JWK did not explicitly specify an algorithm. This could enable JWT algorithm confusion and, in certain configurations, allow forged tokens to be accepted. As part of this fix, the JWT middleware now requires the alg option to be explicitly speci

Lifecycle PUBLISHED1 preserved revisionFact urn:baitaphish:canonical-cve-fact-revision:v2:bd7b3b28b64af3ba4784fcb4b478c68f82f734ba76f1e187fb46397704d55ce5

Known exploited

Not asserted

Disputed

Stale source

Conflicts

Affected products and versions

1 source assertion

{"product":"hono","vendor":"honojs","versions":[{"status":"affected","version":"< 4.11.4"}]}

cve_program_cvelist_v5affected
urn:baitaphish:normalized-source-record:v2:b7f6b9a30095867549c48fecb775264aa32df1f2955175b382103e5e3a3efa7a · sha256:acd8636fee19feb5… · /containers/cna/affected/0

Provider-owned CVSS observations

1 source assertion

{"metric":{"attackComplexity":"LOW","attackVector":"NETWORK","availabilityImpact":"NONE","baseScore":8.2,"baseSeverity":"HIGH","confidentialityImpact":"LOW","integrityImpact":"HIGH","privilegesRequired":"NONE","scope":"UNCHANGED","userInteraction":"NONE","vectorString":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:H/A:N","version":"3.1"},"metric_type":"cvssV3_1"}

cve_program_cvelist_v5cvss
urn:baitaphish:normalized-source-record:v2:b7f6b9a30095867549c48fecb775264aa32df1f2955175b382103e5e3a3efa7a · sha256:acd8636fee19feb5… · /containers/cna/metrics/0/cvssV3_1

CWE assertions

1 source assertion

{"cweId":"CWE-347","description":"CWE-347: Improper Verification of Cryptographic Signature","lang":"en","type":"CWE"}

cve_program_cvelist_v5cwe
urn:baitaphish:normalized-source-record:v2:b7f6b9a30095867549c48fecb775264aa32df1f2955175b382103e5e3a3efa7a · sha256:acd8636fee19feb5… · /containers/cna/problemTypes/0/descriptions/0

Source references

2 source assertions

{"name":"https://github.com/honojs/hono/commit/cc0aa7ae327ed84cc391d29086dec2a3e44e7a1f","tags":["x_refsource_MISC"],"url":"https://github.com/honojs/hono/commit/cc0aa7ae327ed84cc391d29086dec2a3e44e7a1f"}

cve_program_cvelist_v5reference
urn:baitaphish:normalized-source-record:v2:b7f6b9a30095867549c48fecb775264aa32df1f2955175b382103e5e3a3efa7a · sha256:acd8636fee19feb5… · /containers/cna/references/1

{"name":"https://github.com/honojs/hono/security/advisories/GHSA-f67f-6cw9-8mq4","tags":["x_refsource_CONFIRM"],"url":"https://github.com/honojs/hono/security/advisories/GHSA-f67f-6cw9-8mq4"}

cve_program_cvelist_v5reference
urn:baitaphish:normalized-source-record:v2:b7f6b9a30095867549c48fecb775264aa32df1f2955175b382103e5e3a3efa7a · sha256:acd8636fee19feb5… · /containers/cna/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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