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CVE-2026-56764

Hono before 4.11.10 contains a timing attack vulnerability in the basicAuth and bearerAuth middlewares due to non-constant-time string comparison in the timingSafeEqual function. Attackers can exploit early termination of string equality checks to infer valid credentials through precise timing measurements.
Lifecycle PUBLISHED1 preserved revisionFact urn:baitaphish:canonical-cve-fact-revision:v2:1e3de3766a44e571a3330d5fa82ce2b7d933941700064e69258a180ea76914ed
Known exploited
Not asserted
Disputed
No
Stale source
No
Conflicts
1

Preserved source conflicts

No provider value was silently selected as the winner.

cvss · 2 assertions

{"metric":{"attackComplexity":"HIGH","attackVector":"NETWORK","availabilityImpact":"NONE","baseScore":3.7,"baseSeverity":"LOW","confidentialityImpact":"LOW","integrityImpact":"NONE","privilegesRequired":"NONE","scope":"UNCHANGED","userInteraction":"NONE","vectorString":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:N","version":"3.1"},"metric_type":"cvssV3_1"}

  • cve_program_cvelist_v5cvss
    urn:baitaphish:normalized-source-record:v2:4629c43ee0d7bccdaf8d7fa1b5d4e7c3442fd40180a093f125452969c6f1de56 · sha256:b3ee178dad2291a5… · /containers/cna/metrics/1/cvssV3_1

{"metric":{"attackComplexity":"HIGH","attackRequirements":"PRESENT","attackVector":"NETWORK","baseScore":6.3,"baseSeverity":"MEDIUM","privilegesRequired":"NONE","subAvailabilityImpact":"NONE","subConfidentialityImpact":"NONE","subIntegrityImpact":"NONE","userInteraction":"NONE","vectorString":"CVSS:4.0/AV:N/AC:H/AT:P/PR:N/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N","version":"4.0","vulnAvailabilityImpact":"NONE","vulnConfidentialityImpact":"LOW","vulnIntegrityImpact":"NONE"},"metric_type":"cvssV4_0"}

  • cve_program_cvelist_v5cvss
    urn:baitaphish:normalized-source-record:v2:4629c43ee0d7bccdaf8d7fa1b5d4e7c3442fd40180a093f125452969c6f1de56 · sha256:b3ee178dad2291a5… · /containers/cna/metrics/0/cvssV4_0

Affected products and versions

1 source assertion
{"defaultStatus":"unaffected","packageURL":"pkg:npm/hono","product":"Hono","vendor":"Hono","versions":[{"lessThan":"4.11.10","status":"affected","version":"0","versionType":"semver"},{"status":"unaffected","version":"4.11.10","versionType":"semver"}]}
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:4629c43ee0d7bccdaf8d7fa1b5d4e7c3442fd40180a093f125452969c6f1de56 · sha256:b3ee178dad2291a5… · /containers/cna/affected/0

Provider-owned CVSS observations

2 source assertions
{"metric":{"attackComplexity":"HIGH","attackVector":"NETWORK","availabilityImpact":"NONE","baseScore":3.7,"baseSeverity":"LOW","confidentialityImpact":"LOW","integrityImpact":"NONE","privilegesRequired":"NONE","scope":"UNCHANGED","userInteraction":"NONE","vectorString":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:N","version":"3.1"},"metric_type":"cvssV3_1"}
  • cve_program_cvelist_v5cvss
    urn:baitaphish:normalized-source-record:v2:4629c43ee0d7bccdaf8d7fa1b5d4e7c3442fd40180a093f125452969c6f1de56 · sha256:b3ee178dad2291a5… · /containers/cna/metrics/1/cvssV3_1
{"metric":{"attackComplexity":"HIGH","attackRequirements":"PRESENT","attackVector":"NETWORK","baseScore":6.3,"baseSeverity":"MEDIUM","privilegesRequired":"NONE","subAvailabilityImpact":"NONE","subConfidentialityImpact":"NONE","subIntegrityImpact":"NONE","userInteraction":"NONE","vectorString":"CVSS:4.0/AV:N/AC:H/AT:P/PR:N/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N","version":"4.0","vulnAvailabilityImpact":"NONE","vulnConfidentialityImpact":"LOW","vulnIntegrityImpact":"NONE"},"metric_type":"cvssV4_0"}
  • cve_program_cvelist_v5cvss
    urn:baitaphish:normalized-source-record:v2:4629c43ee0d7bccdaf8d7fa1b5d4e7c3442fd40180a093f125452969c6f1de56 · sha256:b3ee178dad2291a5… · /containers/cna/metrics/0/cvssV4_0

CWE assertions

1 source assertion
{"cweId":"CWE-208","description":"Observable Timing Discrepancy","lang":"en","type":"CWE"}
  • cve_program_cvelist_v5cwe
    urn:baitaphish:normalized-source-record:v2:4629c43ee0d7bccdaf8d7fa1b5d4e7c3442fd40180a093f125452969c6f1de56 · sha256:b3ee178dad2291a5… · /containers/cna/problemTypes/0/descriptions/0

Source references

2 source assertions
{"name":"GitHub Security Advisory (GHSA-gq3j-xvxp-8hrf)","tags":["vendor-advisory"],"url":"https://github.com/honojs/hono/security/advisories/GHSA-gq3j-xvxp-8hrf"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:4629c43ee0d7bccdaf8d7fa1b5d4e7c3442fd40180a093f125452969c6f1de56 · sha256:b3ee178dad2291a5… · /containers/cna/references/0
{"name":"VulnCheck Advisory: Hono - Timing Attack in basicAuth and bearerAuth Middleware","tags":["third-party-advisory"],"url":"https://www.vulncheck.com/advisories/hono-timing-attack-in-basicauth-and-bearerauth-middleware"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:4629c43ee0d7bccdaf8d7fa1b5d4e7c3442fd40180a093f125452969c6f1de56 · sha256:b3ee178dad2291a5… · /containers/cna/references/1

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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