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CVE-2026-14643

undici's cache interceptor mishandles optional whitespace placed around the equals sign of a qualified no-cache or private Cache-Control directive. In undici from 7.0.0 up to before 7.29.0 and from 8.0.0 up to before 8.9.0, the parser either drops the directive or stores a field name with literal quote characters, so the cache decision fails to recognize the qualification and the response is stored. In shared-cache mode, this lets a response containing one user's authenticated data be served fro
Lifecycle PUBLISHED1 preserved revisionFact urn:baitaphish:canonical-cve-fact-revision:v2:927a27d1dee45824f0fa4ba2da6348b20a948ebf9bdf65a1c3f072d2ae493f03
Known exploited
Not asserted
Disputed
No
Stale source
No
Conflicts
1

Preserved source conflicts

No provider value was silently selected as the winner.

cwe · 2 assertions

{"cweId":"CWE-524","description":"CWE-524: Use of Cache Containing Sensitive Information","lang":"en","type":"CWE"}

  • cve_program_cvelist_v5cwe
    urn:baitaphish:normalized-source-record:v2:2089a21c40f4450f38848fb97186b90370a075cc7954adc075b500ff6959fe25 · sha256:ddc795716216054e… · /containers/cna/problemTypes/1/descriptions/0

{"cweId":"CWE-436","description":"CWE-436: Interpretation Conflict","lang":"en","type":"CWE"}

  • cve_program_cvelist_v5cwe
    urn:baitaphish:normalized-source-record:v2:2089a21c40f4450f38848fb97186b90370a075cc7954adc075b500ff6959fe25 · sha256:ddc795716216054e… · /containers/cna/problemTypes/0/descriptions/0

Affected products and versions

1 source assertion
{"defaultStatus":"unaffected","packageURL":"pkg:npm/undici","product":"undici","vendor":"undici","versions":[{"lessThan":"7.29.0","status":"affected","version":"7.0.0","versionType":"semver"},{"status":"unaffected","version":"7.29.0","versionType":"semver"},{"lessThan":"8.9.0","status":"affected","version":"8.0.0","versionType":"semver"},{"status":"unaffected","version":"8.9.0","versionType":"semver"}]}
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:2089a21c40f4450f38848fb97186b90370a075cc7954adc075b500ff6959fe25 · sha256:ddc795716216054e… · /containers/cna/affected/0

Provider-owned CVSS observations

1 source assertion
{"metric":{"baseScore":5.9,"baseSeverity":"MEDIUM","vectorString":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N","version":"3.1"},"metric_type":"cvssV3_1"}
  • cve_program_cvelist_v5cvss
    urn:baitaphish:normalized-source-record:v2:2089a21c40f4450f38848fb97186b90370a075cc7954adc075b500ff6959fe25 · sha256:ddc795716216054e… · /containers/cna/metrics/0/cvssV3_1

CWE assertions

2 source assertions
{"cweId":"CWE-524","description":"CWE-524: Use of Cache Containing Sensitive Information","lang":"en","type":"CWE"}
  • cve_program_cvelist_v5cwe
    urn:baitaphish:normalized-source-record:v2:2089a21c40f4450f38848fb97186b90370a075cc7954adc075b500ff6959fe25 · sha256:ddc795716216054e… · /containers/cna/problemTypes/1/descriptions/0
{"cweId":"CWE-436","description":"CWE-436: Interpretation Conflict","lang":"en","type":"CWE"}
  • cve_program_cvelist_v5cwe
    urn:baitaphish:normalized-source-record:v2:2089a21c40f4450f38848fb97186b90370a075cc7954adc075b500ff6959fe25 · sha256:ddc795716216054e… · /containers/cna/problemTypes/0/descriptions/0

Source references

2 source assertions
{"url":"https://cna.openjsf.org/security-advisories.html"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:2089a21c40f4450f38848fb97186b90370a075cc7954adc075b500ff6959fe25 · sha256:ddc795716216054e… · /containers/cna/references/1
{"url":"https://github.com/nodejs/undici/security/advisories/GHSA-jr45-8vmc-qm54"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:2089a21c40f4450f38848fb97186b90370a075cc7954adc075b500ff6959fe25 · sha256:ddc795716216054e… · /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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