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CVE-2026-48596

Improper Neutralization of CRLF Sequences in HTTP Headers ('HTTP Request/Response Splitting') vulnerability in elixir-tesla tesla allows HTTP header injection via Tesla.Multipart.add_content_type_param/2. Tesla.Multipart.add_content_type_param/2 appends caller-supplied strings to the multipart content_type_params list without validating for CR (\r) or LF (\n) characters. Tesla.Multipart.headers/1 then joins these params verbatim with "; " to construct the outgoing Content-Type header value. A p
Lifecycle PUBLISHED1 preserved revisionFact urn:baitaphish:canonical-cve-fact-revision:v2:351a533cbe9cf850a7267f89cd9e773597aaeccfaff547e68320cfac9c005e73
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.Multipart'"],"packageName":"elixir-tesla/tesla","packageURL":"pkg:github/elixir-tesla/tesla","product":"tesla","programFiles":["lib/tesla/multipart.ex"],"programRoutines":[{"name":"'Elixir.Tesla.Multipart':add_content_type_param/2"},{"name":"'Elixir.Tesla.Multipart':headers/1"}],"repo":"https://github.com/elixir-tesla/tesla.git","vendor":"elixir-tesla","versions":[{"lessThan":"23601edac5d22ba9407b427967b5bdbda201aec2","status":"affected","version"…

  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:328ae8f7b8c49c152a114cf0b4e9bba3c9335f57901e6b68a714a8979c2fec9d · sha256:890088e2220ead8b… · /containers/cna/affected/1

{"collectionURL":"https://repo.hex.pm","cpes":["cpe:2.3:a:elixir-tesla:tesla:*:*:*:*:*:*:*:*"],"defaultStatus":"unaffected","modules":["'Elixir.Tesla.Multipart'"],"packageName":"tesla","packageURL":"pkg:hex/tesla","product":"tesla","programFiles":["lib/tesla/multipart.ex"],"programRoutines":[{"name":"'Elixir.Tesla.Multipart':add_content_type_param/2"},{"name":"'Elixir.Tesla.Multipart':headers/1"}],"repo":"https://github.com/elixir-tesla/tesla","vendor":"elixir-tesla","versions":[{"lessThan":"1.18.3","status":"affected","version":"0.8.0","versionType":"semver"}]}

  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:328ae8f7b8c49c152a114cf0b4e9bba3c9335f57901e6b68a714a8979c2fec9d · sha256:890088e2220ead8b… · /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.Multipart'"],"packageName":"elixir-tesla/tesla","packageURL":"pkg:github/elixir-tesla/tesla","product":"tesla","programFiles":["lib/tesla/multipart.ex"],"programRoutines":[{"name":"'Elixir.Tesla.Multipart':add_content_type_param/2"},{"name":"'Elixir.Tesla.Multipart':headers/1"}],"repo":"https://github.com/elixir-tesla/tesla.git","vendor":"elixir-tesla","versions":[{"lessThan":"23601edac5d22ba9407b427967b5bdbda201aec2","status":"affected","version"…
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:328ae8f7b8c49c152a114cf0b4e9bba3c9335f57901e6b68a714a8979c2fec9d · sha256:890088e2220ead8b… · /containers/cna/affected/1
{"collectionURL":"https://repo.hex.pm","cpes":["cpe:2.3:a:elixir-tesla:tesla:*:*:*:*:*:*:*:*"],"defaultStatus":"unaffected","modules":["'Elixir.Tesla.Multipart'"],"packageName":"tesla","packageURL":"pkg:hex/tesla","product":"tesla","programFiles":["lib/tesla/multipart.ex"],"programRoutines":[{"name":"'Elixir.Tesla.Multipart':add_content_type_param/2"},{"name":"'Elixir.Tesla.Multipart':headers/1"}],"repo":"https://github.com/elixir-tesla/tesla","vendor":"elixir-tesla","versions":[{"lessThan":"1.18.3","status":"affected","version":"0.8.0","versionType":"semver"}]}
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:328ae8f7b8c49c152a114cf0b4e9bba3c9335f57901e6b68a714a8979c2fec9d · sha256:890088e2220ead8b… · /containers/cna/affected/0

Provider-owned CVSS observations

1 source assertion
{"metric":{"attackComplexity":"LOW","attackRequirements":"PRESENT","attackVector":"LOCAL","baseScore":2.1,"baseSeverity":"LOW","privilegesRequired":"NONE","subAvailabilityImpact":"NONE","subConfidentialityImpact":"NONE","subIntegrityImpact":"LOW","userInteraction":"NONE","vectorString":"CVSS:4.0/AV:L/AC:L/AT:P/PR:N/UI:N/VC:N/VI:N/VA:N/SC:N/SI:L/SA:N","version":"4.0","vulnAvailabilityImpact":"NONE","vulnConfidentialityImpact":"NONE","vulnIntegrityImpact":"NONE"},"metric_type":"cvssV4_0"}
  • cve_program_cvelist_v5cvss
    urn:baitaphish:normalized-source-record:v2:328ae8f7b8c49c152a114cf0b4e9bba3c9335f57901e6b68a714a8979c2fec9d · sha256:890088e2220ead8b… · /containers/cna/metrics/0/cvssV4_0

CWE assertions

1 source assertion
{"cweId":"CWE-113","description":"CWE-113 Improper Neutralization of CRLF Sequences in HTTP Headers ('HTTP Request/Response Splitting')","lang":"en","type":"CWE"}
  • cve_program_cvelist_v5cwe
    urn:baitaphish:normalized-source-record:v2:328ae8f7b8c49c152a114cf0b4e9bba3c9335f57901e6b68a714a8979c2fec9d · sha256:890088e2220ead8b… · /containers/cna/problemTypes/0/descriptions/0

Source references

5 source assertions
{"tags":["related"],"url":"https://cna.erlef.org/cves/CVE-2026-48596.html"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:328ae8f7b8c49c152a114cf0b4e9bba3c9335f57901e6b68a714a8979c2fec9d · sha256:890088e2220ead8b… · /containers/cna/references/1
{"tags":["patch"],"url":"https://github.com/elixir-tesla/tesla/commit/23601edac5d22ba9407b427967b5bdbda201aec2"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:328ae8f7b8c49c152a114cf0b4e9bba3c9335f57901e6b68a714a8979c2fec9d · sha256:890088e2220ead8b… · /containers/cna/references/3
{"tags":["vendor-advisory","related"],"url":"https://github.com/elixir-tesla/tesla/security/advisories/GHSA-q7jx-v53g-848w"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:328ae8f7b8c49c152a114cf0b4e9bba3c9335f57901e6b68a714a8979c2fec9d · sha256:890088e2220ead8b… · /containers/cna/references/0
{"tags":["exploit"],"url":"https://github.com/elixir-tesla/tesla/security/advisories/GHSA-q7jx-v53g-848w"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:328ae8f7b8c49c152a114cf0b4e9bba3c9335f57901e6b68a714a8979c2fec9d · sha256:890088e2220ead8b… · /containers/adp/0/references/0
{"tags":["related"],"url":"https://osv.dev/vulnerability/EEF-CVE-2026-48596"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:328ae8f7b8c49c152a114cf0b4e9bba3c9335f57901e6b68a714a8979c2fec9d · sha256:890088e2220ead8b… · /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.

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