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CVE-2026-54893

URL path injection in the Microsoft Graph adapter of Swoosh. Swoosh.Adapters.MsGraph builds its Microsoft Graph API request URL by interpolating the sender's email address into the URL path (/users/{from}/sendMail) without percent-encoding or validation. In applications that derive the from address from untrusted or user-influenced input (for example a relay, a contact form, or a "send as" feature), an attacker can place URL-special characters such as /, ?, or # in the local part of the address
Lifecycle PUBLISHED1 preserved revisionFact urn:baitaphish:canonical-cve-fact-revision:v2:664680e82546d1dcd0d70d1a850c0c312747ec635dc1e39a586b9779ce5de08e
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://repo.hex.pm","cpes":["cpe:2.3:a:swoosh:swoosh:*:*:*:*:*:*:*:*"],"defaultStatus":"unaffected","modules":["'Elixir.Swoosh.Adapters.MsGraph'"],"packageName":"swoosh","packageURL":"pkg:hex/swoosh","product":"swoosh","programFiles":["lib/swoosh/adapters/ms_graph.ex"],"programRoutines":[{"name":"'Elixir.Swoosh.Adapters.MsGraph':deliver/2"},{"name":"'Elixir.Swoosh.Adapters.MsGraph':api_endpoint_url/2"}],"repo":"https://github.com/swoosh/swoosh","vendor":"swoosh","versions":[{"lessThan":"1.26.3","status":"affected","version":"1.12.0","versionType":"semver"}]}

  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:d70bd56b67d36bab869af0fe0a03ac86a5107259995b5fd6d9282fdd3f7d4457 · sha256:e519947c9dc7dab0… · /containers/cna/affected/0

{"collectionURL":"https://github.com","cpes":["cpe:2.3:a:swoosh:swoosh:*:*:*:*:*:*:*:*"],"defaultStatus":"unaffected","modules":["'Elixir.Swoosh.Adapters.MsGraph'"],"packageName":"swoosh/swoosh","packageURL":"pkg:github/swoosh/swoosh","product":"swoosh","programFiles":["lib/swoosh/adapters/ms_graph.ex"],"programRoutines":[{"name":"'Elixir.Swoosh.Adapters.MsGraph':deliver/2"},{"name":"'Elixir.Swoosh.Adapters.MsGraph':api_endpoint_url/2"}],"repo":"https://github.com/swoosh/swoosh","vendor":"swoosh","versions":[{"lessThan":"e38235453e81d1727bfc8d91e69ec4cb211ccf61","status":"affected","version":"…

  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:d70bd56b67d36bab869af0fe0a03ac86a5107259995b5fd6d9282fdd3f7d4457 · sha256:e519947c9dc7dab0… · /containers/cna/affected/1

Affected products and versions

2 source assertions
{"collectionURL":"https://repo.hex.pm","cpes":["cpe:2.3:a:swoosh:swoosh:*:*:*:*:*:*:*:*"],"defaultStatus":"unaffected","modules":["'Elixir.Swoosh.Adapters.MsGraph'"],"packageName":"swoosh","packageURL":"pkg:hex/swoosh","product":"swoosh","programFiles":["lib/swoosh/adapters/ms_graph.ex"],"programRoutines":[{"name":"'Elixir.Swoosh.Adapters.MsGraph':deliver/2"},{"name":"'Elixir.Swoosh.Adapters.MsGraph':api_endpoint_url/2"}],"repo":"https://github.com/swoosh/swoosh","vendor":"swoosh","versions":[{"lessThan":"1.26.3","status":"affected","version":"1.12.0","versionType":"semver"}]}
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:d70bd56b67d36bab869af0fe0a03ac86a5107259995b5fd6d9282fdd3f7d4457 · sha256:e519947c9dc7dab0… · /containers/cna/affected/0
{"collectionURL":"https://github.com","cpes":["cpe:2.3:a:swoosh:swoosh:*:*:*:*:*:*:*:*"],"defaultStatus":"unaffected","modules":["'Elixir.Swoosh.Adapters.MsGraph'"],"packageName":"swoosh/swoosh","packageURL":"pkg:github/swoosh/swoosh","product":"swoosh","programFiles":["lib/swoosh/adapters/ms_graph.ex"],"programRoutines":[{"name":"'Elixir.Swoosh.Adapters.MsGraph':deliver/2"},{"name":"'Elixir.Swoosh.Adapters.MsGraph':api_endpoint_url/2"}],"repo":"https://github.com/swoosh/swoosh","vendor":"swoosh","versions":[{"lessThan":"e38235453e81d1727bfc8d91e69ec4cb211ccf61","status":"affected","version":"…
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:d70bd56b67d36bab869af0fe0a03ac86a5107259995b5fd6d9282fdd3f7d4457 · sha256:e519947c9dc7dab0… · /containers/cna/affected/1

Provider-owned CVSS observations

1 source assertion
{"metric":{"attackComplexity":"LOW","attackRequirements":"PRESENT","attackVector":"LOCAL","baseScore":2.1,"baseSeverity":"LOW","privilegesRequired":"NONE","subAvailabilityImpact":"NONE","subConfidentialityImpact":"LOW","subIntegrityImpact":"LOW","userInteraction":"NONE","vectorString":"CVSS:4.0/AV:L/AC:L/AT:P/PR:N/UI:N/VC:N/VI:L/VA:N/SC:L/SI:L/SA:N","version":"4.0","vulnAvailabilityImpact":"NONE","vulnConfidentialityImpact":"NONE","vulnIntegrityImpact":"LOW"},"metric_type":"cvssV4_0"}
  • cve_program_cvelist_v5cvss
    urn:baitaphish:normalized-source-record:v2:d70bd56b67d36bab869af0fe0a03ac86a5107259995b5fd6d9282fdd3f7d4457 · sha256:e519947c9dc7dab0… · /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:d70bd56b67d36bab869af0fe0a03ac86a5107259995b5fd6d9282fdd3f7d4457 · sha256:e519947c9dc7dab0… · /containers/cna/problemTypes/0/descriptions/0

Source references

4 source assertions
{"tags":["related"],"url":"https://cna.erlef.org/cves/CVE-2026-54893.html"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:d70bd56b67d36bab869af0fe0a03ac86a5107259995b5fd6d9282fdd3f7d4457 · sha256:e519947c9dc7dab0… · /containers/cna/references/1
{"tags":["patch"],"url":"https://github.com/swoosh/swoosh/commit/e38235453e81d1727bfc8d91e69ec4cb211ccf61"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:d70bd56b67d36bab869af0fe0a03ac86a5107259995b5fd6d9282fdd3f7d4457 · sha256:e519947c9dc7dab0… · /containers/cna/references/3
{"tags":["vendor-advisory","related"],"url":"https://github.com/swoosh/swoosh/security/advisories/GHSA-754j-98wh-57rf"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:d70bd56b67d36bab869af0fe0a03ac86a5107259995b5fd6d9282fdd3f7d4457 · sha256:e519947c9dc7dab0… · /containers/cna/references/0
{"tags":["related"],"url":"https://osv.dev/vulnerability/EEF-CVE-2026-54893"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:d70bd56b67d36bab869af0fe0a03ac86a5107259995b5fd6d9282fdd3f7d4457 · sha256:e519947c9dc7dab0… · /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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