Baitaphish
Security intelligence
SearchLatest briefing
CVE Explorer

CVE-2026-48595

Improper Handling of Case Sensitivity vulnerability in elixir-tesla tesla allows credential leakage to a third-party origin on cross-origin redirects. Tesla.Middleware.FollowRedirects strips security-sensitive headers on cross-origin redirects using a case-sensitive string comparison against a lowercase filter list (@filter_headers ["authorization", "host"]). HTTP header names are case-insensitive per RFC 7230, but Tesla preserves header keys verbatim as supplied by the caller without normalizi
Lifecycle PUBLISHED1 preserved revisionFact urn:baitaphish:canonical-cve-fact-revision:v2:0520514d3fcfe36f1c127040dab2db97b397b0526492672d9aefe795a33089a1
Known exploited
Not asserted
Disputed
No
Stale source
No
Conflicts
1

Preserved source conflicts

No provider value was silently selected as the winner.

affected · 2 assertions

{"collectionURL":"https://github.com","cpes":["cpe:2.3:a:elixir-tesla:tesla:*:*:*:*:*:*:*:*"],"defaultStatus":"unaffected","modules":["'Elixir.Tesla.Middleware.FollowRedirects'"],"packageName":"elixir-tesla/tesla","packageURL":"pkg:github/elixir-tesla/tesla","product":"tesla","programFiles":["lib/tesla/middleware/follow_redirects.ex"],"programRoutines":[{"name":"'Elixir.Tesla.Middleware.FollowRedirects':call/3"}],"repo":"https://github.com/elixir-tesla/tesla.git","vendor":"elixir-tesla","versions":[{"lessThan":"db963dba67651b9abd1fc420a1d9679cf6efe182","status":"affected","version":"2d937d5813…

  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:18a913924307cadc8f02f9366d2ca4391dac45e0858fe7f4c89c36302ab43e42 · sha256:8043dcc563dfe991… · /containers/cna/affected/1

{"collectionURL":"https://repo.hex.pm","cpes":["cpe:2.3:a:elixir-tesla:tesla:*:*:*:*:*:*:*:*"],"defaultStatus":"unaffected","modules":["'Elixir.Tesla.Middleware.FollowRedirects'"],"packageName":"tesla","packageURL":"pkg:hex/tesla","product":"tesla","programFiles":["lib/tesla/middleware/follow_redirects.ex"],"programRoutines":[{"name":"'Elixir.Tesla.Middleware.FollowRedirects':call/3"}],"repo":"https://github.com/elixir-tesla/tesla","vendor":"elixir-tesla","versions":[{"lessThan":"1.18.3","status":"affected","version":"1.4.0","versionType":"semver"}]}

  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:18a913924307cadc8f02f9366d2ca4391dac45e0858fe7f4c89c36302ab43e42 · sha256:8043dcc563dfe991… · /containers/cna/affected/0

Affected products and versions

2 source assertions
{"collectionURL":"https://github.com","cpes":["cpe:2.3:a:elixir-tesla:tesla:*:*:*:*:*:*:*:*"],"defaultStatus":"unaffected","modules":["'Elixir.Tesla.Middleware.FollowRedirects'"],"packageName":"elixir-tesla/tesla","packageURL":"pkg:github/elixir-tesla/tesla","product":"tesla","programFiles":["lib/tesla/middleware/follow_redirects.ex"],"programRoutines":[{"name":"'Elixir.Tesla.Middleware.FollowRedirects':call/3"}],"repo":"https://github.com/elixir-tesla/tesla.git","vendor":"elixir-tesla","versions":[{"lessThan":"db963dba67651b9abd1fc420a1d9679cf6efe182","status":"affected","version":"2d937d5813…
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:18a913924307cadc8f02f9366d2ca4391dac45e0858fe7f4c89c36302ab43e42 · sha256:8043dcc563dfe991… · /containers/cna/affected/1
{"collectionURL":"https://repo.hex.pm","cpes":["cpe:2.3:a:elixir-tesla:tesla:*:*:*:*:*:*:*:*"],"defaultStatus":"unaffected","modules":["'Elixir.Tesla.Middleware.FollowRedirects'"],"packageName":"tesla","packageURL":"pkg:hex/tesla","product":"tesla","programFiles":["lib/tesla/middleware/follow_redirects.ex"],"programRoutines":[{"name":"'Elixir.Tesla.Middleware.FollowRedirects':call/3"}],"repo":"https://github.com/elixir-tesla/tesla","vendor":"elixir-tesla","versions":[{"lessThan":"1.18.3","status":"affected","version":"1.4.0","versionType":"semver"}]}
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:18a913924307cadc8f02f9366d2ca4391dac45e0858fe7f4c89c36302ab43e42 · sha256:8043dcc563dfe991… · /containers/cna/affected/0

Provider-owned CVSS observations

1 source assertion
{"metric":{"attackComplexity":"LOW","attackRequirements":"PRESENT","attackVector":"NETWORK","baseScore":8.2,"baseSeverity":"HIGH","privilegesRequired":"NONE","subAvailabilityImpact":"NONE","subConfidentialityImpact":"NONE","subIntegrityImpact":"NONE","userInteraction":"NONE","vectorString":"CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N","version":"4.0","vulnAvailabilityImpact":"NONE","vulnConfidentialityImpact":"HIGH","vulnIntegrityImpact":"NONE"},"metric_type":"cvssV4_0"}
  • cve_program_cvelist_v5cvss
    urn:baitaphish:normalized-source-record:v2:18a913924307cadc8f02f9366d2ca4391dac45e0858fe7f4c89c36302ab43e42 · sha256:8043dcc563dfe991… · /containers/cna/metrics/0/cvssV4_0

CWE assertions

1 source assertion
{"cweId":"CWE-178","description":"CWE-178 Improper Handling of Case Sensitivity","lang":"en","type":"CWE"}
  • cve_program_cvelist_v5cwe
    urn:baitaphish:normalized-source-record:v2:18a913924307cadc8f02f9366d2ca4391dac45e0858fe7f4c89c36302ab43e42 · sha256:8043dcc563dfe991… · /containers/cna/problemTypes/0/descriptions/0

Source references

5 source assertions
{"tags":["related"],"url":"https://cna.erlef.org/cves/CVE-2026-48595.html"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:18a913924307cadc8f02f9366d2ca4391dac45e0858fe7f4c89c36302ab43e42 · sha256:8043dcc563dfe991… · /containers/cna/references/1
{"tags":["patch"],"url":"https://github.com/elixir-tesla/tesla/commit/db963dba67651b9abd1fc420a1d9679cf6efe182"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:18a913924307cadc8f02f9366d2ca4391dac45e0858fe7f4c89c36302ab43e42 · sha256:8043dcc563dfe991… · /containers/cna/references/3
{"tags":["exploit"],"url":"https://github.com/elixir-tesla/tesla/security/advisories/GHSA-9m9w-gxf7-rh8m"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:18a913924307cadc8f02f9366d2ca4391dac45e0858fe7f4c89c36302ab43e42 · sha256:8043dcc563dfe991… · /containers/adp/0/references/0
{"tags":["vendor-advisory","related"],"url":"https://github.com/elixir-tesla/tesla/security/advisories/GHSA-9m9w-gxf7-rh8m"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:18a913924307cadc8f02f9366d2ca4391dac45e0858fe7f4c89c36302ab43e42 · sha256:8043dcc563dfe991… · /containers/cna/references/0
{"tags":["related"],"url":"https://osv.dev/vulnerability/EEF-CVE-2026-48595"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:18a913924307cadc8f02f9366d2ca4391dac45e0858fe7f4c89c36302ab43e42 · sha256:8043dcc563dfe991… · /containers/cna/references/2

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.

← Back to CVE Explorer