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CVE-2026-32689

Allocation of Resources Without Limits or Throttling vulnerability in phoenixframework phoenix allows a denial of service via the long-poll transport's NDJSON body handling. In 'Elixir.Phoenix.Transports.LongPoll':publish/4, when a POST request is received with Content-Type: application/x-ndjson, the request body is split on newline characters using String.split/2 with no limit on the number of resulting segments. An attacker can send a body consisting entirely of newline bytes, causing a 1:1 a
Lifecycle PUBLISHED1 preserved revisionFact urn:baitaphish:canonical-cve-fact-revision:v2:3689aad2232254ffbd387b87734a4537d620230ebf82f38b03739b66d2c9b12a
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:phoenixframework:phoenix:*:*:*:*:*:*:*:*"],"defaultStatus":"unaffected","modules":["'Elixir.Phoenix.Transports.LongPoll'"],"packageName":"phoenix","packageURL":"pkg:hex/phoenix","product":"phoenix","programFiles":["lib/phoenix/transports/long_poll.ex"],"programRoutines":[{"name":"'Elixir.Phoenix.Transports.LongPoll':publish/4"}],"repo":"https://github.com/phoenixframework/phoenix","vendor":"phoenixframework","versions":[{"lessThan":"1.7.22","status":"affected","version":"1.7.0","versionType":"semver"},{"lessThan":"1.8.6","status":"affec…

  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:505d93f46bce1bb3eda64222983da74ad7da2a35e01c3be25fe6601f2bec6704 · sha256:2551740a60c1e884… · /containers/cna/affected/0

{"collectionURL":"https://github.com","cpes":["cpe:2.3:a:phoenixframework:phoenix:*:*:*:*:*:*:*:*"],"defaultStatus":"unaffected","modules":["'Elixir.Phoenix.Transports.LongPoll'"],"packageName":"phoenixframework/phoenix","packageURL":"pkg:github/phoenixframework/phoenix","product":"phoenix","programFiles":["lib/phoenix/transports/long_poll.ex"],"programRoutines":[{"name":"'Elixir.Phoenix.Transports.LongPoll':publish/4"}],"repo":"https://github.com/phoenixframework/phoenix","vendor":"phoenixframework","versions":[{"changes":[{"at":"1a67c61ff9ce0a7711662ac7354861917a7c80f7","status":"unaffected"…

  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:505d93f46bce1bb3eda64222983da74ad7da2a35e01c3be25fe6601f2bec6704 · sha256:2551740a60c1e884… · /containers/cna/affected/1

Affected products and versions

2 source assertions
{"collectionURL":"https://repo.hex.pm","cpes":["cpe:2.3:a:phoenixframework:phoenix:*:*:*:*:*:*:*:*"],"defaultStatus":"unaffected","modules":["'Elixir.Phoenix.Transports.LongPoll'"],"packageName":"phoenix","packageURL":"pkg:hex/phoenix","product":"phoenix","programFiles":["lib/phoenix/transports/long_poll.ex"],"programRoutines":[{"name":"'Elixir.Phoenix.Transports.LongPoll':publish/4"}],"repo":"https://github.com/phoenixframework/phoenix","vendor":"phoenixframework","versions":[{"lessThan":"1.7.22","status":"affected","version":"1.7.0","versionType":"semver"},{"lessThan":"1.8.6","status":"affec…
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:505d93f46bce1bb3eda64222983da74ad7da2a35e01c3be25fe6601f2bec6704 · sha256:2551740a60c1e884… · /containers/cna/affected/0
{"collectionURL":"https://github.com","cpes":["cpe:2.3:a:phoenixframework:phoenix:*:*:*:*:*:*:*:*"],"defaultStatus":"unaffected","modules":["'Elixir.Phoenix.Transports.LongPoll'"],"packageName":"phoenixframework/phoenix","packageURL":"pkg:github/phoenixframework/phoenix","product":"phoenix","programFiles":["lib/phoenix/transports/long_poll.ex"],"programRoutines":[{"name":"'Elixir.Phoenix.Transports.LongPoll':publish/4"}],"repo":"https://github.com/phoenixframework/phoenix","vendor":"phoenixframework","versions":[{"changes":[{"at":"1a67c61ff9ce0a7711662ac7354861917a7c80f7","status":"unaffected"…
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:505d93f46bce1bb3eda64222983da74ad7da2a35e01c3be25fe6601f2bec6704 · sha256:2551740a60c1e884… · /containers/cna/affected/1

Provider-owned CVSS observations

1 source assertion
{"metric":{"Automatable":"NOT_DEFINED","Recovery":"NOT_DEFINED","Safety":"NOT_DEFINED","attackComplexity":"LOW","attackRequirements":"NONE","attackVector":"NETWORK","baseScore":8.7,"baseSeverity":"HIGH","exploitMaturity":"NOT_DEFINED","privilegesRequired":"NONE","providerUrgency":"NOT_DEFINED","subAvailabilityImpact":"NONE","subConfidentialityImpact":"NONE","subIntegrityImpact":"NONE","userInteraction":"NONE","valueDensity":"NOT_DEFINED","vectorString":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N","version":"4.0","vulnAvailabilityImpact":"HIGH","vulnConfidentialityImpact":"…
  • cve_program_cvelist_v5cvss
    urn:baitaphish:normalized-source-record:v2:505d93f46bce1bb3eda64222983da74ad7da2a35e01c3be25fe6601f2bec6704 · sha256:2551740a60c1e884… · /containers/cna/metrics/0/cvssV4_0

CWE assertions

1 source assertion
{"cweId":"CWE-770","description":"CWE-770 Allocation of Resources Without Limits or Throttling","lang":"en","type":"CWE"}
  • cve_program_cvelist_v5cwe
    urn:baitaphish:normalized-source-record:v2:505d93f46bce1bb3eda64222983da74ad7da2a35e01c3be25fe6601f2bec6704 · sha256:2551740a60c1e884… · /containers/cna/problemTypes/0/descriptions/0

Source references

5 source assertions
{"tags":["related"],"url":"https://cna.erlef.org/cves/CVE-2026-32689.html"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:505d93f46bce1bb3eda64222983da74ad7da2a35e01c3be25fe6601f2bec6704 · sha256:2551740a60c1e884… · /containers/cna/references/1
{"tags":["patch"],"url":"https://github.com/phoenixframework/phoenix/commit/1a67c61ff9ce0a7711662ac7354861917a7c80f7"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:505d93f46bce1bb3eda64222983da74ad7da2a35e01c3be25fe6601f2bec6704 · sha256:2551740a60c1e884… · /containers/cna/references/3
{"tags":["patch"],"url":"https://github.com/phoenixframework/phoenix/commit/912ea181fd247c21dbcc49fb97d0053b947d81bf"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:505d93f46bce1bb3eda64222983da74ad7da2a35e01c3be25fe6601f2bec6704 · sha256:2551740a60c1e884… · /containers/cna/references/4
{"tags":["vendor-advisory","related"],"url":"https://github.com/phoenixframework/phoenix/security/advisories/GHSA-628h-q48j-jr6q"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:505d93f46bce1bb3eda64222983da74ad7da2a35e01c3be25fe6601f2bec6704 · sha256:2551740a60c1e884… · /containers/cna/references/0
{"tags":["related"],"url":"https://osv.dev/vulnerability/EEF-CVE-2026-32689"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:505d93f46bce1bb3eda64222983da74ad7da2a35e01c3be25fe6601f2bec6704 · sha256:2551740a60c1e884… · /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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