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CVE-2026-49336

@microsoft/kiota-http-fetchlibrary provides TypeScript libraries for Kiota-generated API clients. In versions 1.0.0-preview.97 through 1.0.0-preview.101, `@microsoft/kiota-http-fetchlibrary`'s `RedirectHandler` is documented as stripping `Authorization` and `Cookie` from cross-origin redirect targets, but the default `scrubSensitiveHeaders` callback in `RedirectHandlerOptions` uses case-sensitive property deletion (`delete headers.Authorization`, `delete headers.Cookie`) on a headers object that
Lifecycle PUBLISHED1 preserved revisionFact urn:baitaphish:canonical-cve-fact-revision:v2:139ec7b80eb6756f885194635fe1e5b9db78723ea82428b1f23f1444f32f6d21
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-200","description":"CWE-200: Exposure of Sensitive Information to an Unauthorized Actor","lang":"en","type":"CWE"}

  • cve_program_cvelist_v5cwe
    urn:baitaphish:normalized-source-record:v2:db6de66a6027dcfc949138b9d667fde23936d771d959ccb5a5f1b5e2639dc1d1 · sha256:0bfb04b5886a4559… · /containers/cna/problemTypes/1/descriptions/0

{"cweId":"CWE-178","description":"CWE-178: Improper Handling of Case Sensitivity","lang":"en","type":"CWE"}

  • cve_program_cvelist_v5cwe
    urn:baitaphish:normalized-source-record:v2:db6de66a6027dcfc949138b9d667fde23936d771d959ccb5a5f1b5e2639dc1d1 · sha256:0bfb04b5886a4559… · /containers/cna/problemTypes/0/descriptions/0

Affected products and versions

1 source assertion
{"product":"kiota-typescript","vendor":"microsoft","versions":[{"status":"affected","version":">= 1.0.0-preview.97, < 1.0.0-preview.102"}]}
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:db6de66a6027dcfc949138b9d667fde23936d771d959ccb5a5f1b5e2639dc1d1 · sha256:0bfb04b5886a4559… · /containers/cna/affected/0

Provider-owned CVSS observations

1 source assertion
{"metric":{"attackComplexity":"LOW","attackRequirements":"NONE","attackVector":"NETWORK","baseScore":5.5,"baseSeverity":"MEDIUM","privilegesRequired":"NONE","subAvailabilityImpact":"NONE","subConfidentialityImpact":"NONE","subIntegrityImpact":"NONE","userInteraction":"NONE","vectorString":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N/E:P","version":"4.0","vulnAvailabilityImpact":"NONE","vulnConfidentialityImpact":"LOW","vulnIntegrityImpact":"NONE"},"metric_type":"cvssV4_0"}
  • cve_program_cvelist_v5cvss
    urn:baitaphish:normalized-source-record:v2:db6de66a6027dcfc949138b9d667fde23936d771d959ccb5a5f1b5e2639dc1d1 · sha256:0bfb04b5886a4559… · /containers/cna/metrics/0/cvssV4_0

CWE assertions

2 source assertions
{"cweId":"CWE-200","description":"CWE-200: Exposure of Sensitive Information to an Unauthorized Actor","lang":"en","type":"CWE"}
  • cve_program_cvelist_v5cwe
    urn:baitaphish:normalized-source-record:v2:db6de66a6027dcfc949138b9d667fde23936d771d959ccb5a5f1b5e2639dc1d1 · sha256:0bfb04b5886a4559… · /containers/cna/problemTypes/1/descriptions/0
{"cweId":"CWE-178","description":"CWE-178: Improper Handling of Case Sensitivity","lang":"en","type":"CWE"}
  • cve_program_cvelist_v5cwe
    urn:baitaphish:normalized-source-record:v2:db6de66a6027dcfc949138b9d667fde23936d771d959ccb5a5f1b5e2639dc1d1 · sha256:0bfb04b5886a4559… · /containers/cna/problemTypes/0/descriptions/0

Source references

3 source assertions
{"name":"https://github.com/microsoft/kiota-typescript/commit/09f8bd9b34d68bf412a9b78f6ca7e7961ef14974","tags":["x_refsource_MISC"],"url":"https://github.com/microsoft/kiota-typescript/commit/09f8bd9b34d68bf412a9b78f6ca7e7961ef14974"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:db6de66a6027dcfc949138b9d667fde23936d771d959ccb5a5f1b5e2639dc1d1 · sha256:0bfb04b5886a4559… · /containers/cna/references/1
{"name":"https://github.com/microsoft/kiota-typescript/security/advisories/GHSA-396q-4vc8-28x9","tags":["x_refsource_CONFIRM"],"url":"https://github.com/microsoft/kiota-typescript/security/advisories/GHSA-396q-4vc8-28x9"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:db6de66a6027dcfc949138b9d667fde23936d771d959ccb5a5f1b5e2639dc1d1 · sha256:0bfb04b5886a4559… · /containers/cna/references/0
{"tags":["exploit"],"url":"https://github.com/microsoft/kiota-typescript/security/advisories/GHSA-396q-4vc8-28x9"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:db6de66a6027dcfc949138b9d667fde23936d771d959ccb5a5f1b5e2639dc1d1 · sha256:0bfb04b5886a4559… · /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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