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CVE-2026-48598

Improper Encoding or Escaping of Output vulnerability in elixir-tesla tesla allows multipart part header injection via unescaped Content-Disposition parameter values. Tesla.Multipart.part_headers_for_disposition/1 interpolates each disposition parameter as #{k}="#{v}" with no validation of CR (\r), LF (\n), or double-quote characters. The values come verbatim from the caller via Tesla.Multipart.add_field/4 (the name parameter), Tesla.Multipart.add_file/3, and Tesla.Multipart.add_file_content/4
Lifecycle PUBLISHED1 preserved revisionFact urn:baitaphish:canonical-cve-fact-revision:v2:dbe082785867f8d3e2e89a480b56637870227698f0a2e24a74032d38a01c63ee
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':part_headers_for_disposition/1"},{"name":"'Elixir.Tesla.Multipart':add_field/4"},{"name":"'Elixir.Tesla.Multipart':add_file/3"},{"name":"'Elixir.Tesla.Multipart':add_file_content/4"}],"repo":"https://github.com/elixir-tesla/tesla.git","vendor":"…

  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:f17ada165d8114dd253e9b092cbeae5fc14169af6fc53f9b69489b6c213190ca · sha256:41a33073852ba20e… · /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':part_headers_for_disposition/1"},{"name":"'Elixir.Tesla.Multipart':add_field/4"},{"name":"'Elixir.Tesla.Multipart':add_file/3"},{"name":"'Elixir.Tesla.Multipart':add_file_content/4"}],"repo":"https://github.com/elixir-tesla/tesla","vendor":"elixir-tesla","versions":[{"less…

  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:f17ada165d8114dd253e9b092cbeae5fc14169af6fc53f9b69489b6c213190ca · sha256:41a33073852ba20e… · /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':part_headers_for_disposition/1"},{"name":"'Elixir.Tesla.Multipart':add_field/4"},{"name":"'Elixir.Tesla.Multipart':add_file/3"},{"name":"'Elixir.Tesla.Multipart':add_file_content/4"}],"repo":"https://github.com/elixir-tesla/tesla.git","vendor":"…
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:f17ada165d8114dd253e9b092cbeae5fc14169af6fc53f9b69489b6c213190ca · sha256:41a33073852ba20e… · /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':part_headers_for_disposition/1"},{"name":"'Elixir.Tesla.Multipart':add_field/4"},{"name":"'Elixir.Tesla.Multipart':add_file/3"},{"name":"'Elixir.Tesla.Multipart':add_file_content/4"}],"repo":"https://github.com/elixir-tesla/tesla","vendor":"elixir-tesla","versions":[{"less…
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:f17ada165d8114dd253e9b092cbeae5fc14169af6fc53f9b69489b6c213190ca · sha256:41a33073852ba20e… · /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:f17ada165d8114dd253e9b092cbeae5fc14169af6fc53f9b69489b6c213190ca · sha256:41a33073852ba20e… · /containers/cna/metrics/0/cvssV4_0

CWE assertions

1 source assertion
{"cweId":"CWE-116","description":"CWE-116 Improper Encoding or Escaping of Output","lang":"en","type":"CWE"}
  • cve_program_cvelist_v5cwe
    urn:baitaphish:normalized-source-record:v2:f17ada165d8114dd253e9b092cbeae5fc14169af6fc53f9b69489b6c213190ca · sha256:41a33073852ba20e… · /containers/cna/problemTypes/0/descriptions/0

Source references

5 source assertions
{"tags":["related"],"url":"https://cna.erlef.org/cves/CVE-2026-48598.html"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:f17ada165d8114dd253e9b092cbeae5fc14169af6fc53f9b69489b6c213190ca · sha256:41a33073852ba20e… · /containers/cna/references/1
{"tags":["patch"],"url":"https://github.com/elixir-tesla/tesla/commit/bb1a2c3da2775924d96e3db8e315dcc4d5d2246e"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:f17ada165d8114dd253e9b092cbeae5fc14169af6fc53f9b69489b6c213190ca · sha256:41a33073852ba20e… · /containers/cna/references/3
{"tags":["vendor-advisory","related"],"url":"https://github.com/elixir-tesla/tesla/security/advisories/GHSA-28jh-g32x-v9v4"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:f17ada165d8114dd253e9b092cbeae5fc14169af6fc53f9b69489b6c213190ca · sha256:41a33073852ba20e… · /containers/cna/references/0
{"tags":["exploit"],"url":"https://github.com/elixir-tesla/tesla/security/advisories/GHSA-28jh-g32x-v9v4"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:f17ada165d8114dd253e9b092cbeae5fc14169af6fc53f9b69489b6c213190ca · sha256:41a33073852ba20e… · /containers/adp/0/references/0
{"tags":["related"],"url":"https://osv.dev/vulnerability/EEF-CVE-2026-48598"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:f17ada165d8114dd253e9b092cbeae5fc14169af6fc53f9b69489b6c213190ca · sha256:41a33073852ba20e… · /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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