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CVE-2026-8468

Allocation of Resources Without Limits or Throttling vulnerability in plug_project plug allows denial of service via unbounded buffer accumulation in multipart header parsing. 'Elixir.Plug.Conn':read_part_headers/2 in lib/plug/conn.ex does not obey its :length parameter. There is no upper bound on the size of the accumulated buffer. By contrast, the sibling function read_part_body has an explicit byte_size(acc) > length guard that stops accumulation once a limit is reached. No such guard exists
Lifecycle PUBLISHED1 preserved revisionFact urn:baitaphish:canonical-cve-fact-revision:v2:d93cfc567e7e590fb32a9517edc25e7fdf047e1ef245c2b9265b4adafe9fea5b
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:plug_project:plug:*:*:*:*:*:*:*:*"],"defaultStatus":"unaffected","modules":["Elixir.Plug.Conn"],"packageName":"plug","packageURL":"pkg:hex/plug","product":"plug","programFiles":["lib/plug/conn.ex"],"programRoutines":[{"name":"'Elixir.Plug.Conn':read_part_headers/2"}],"repo":"https://github.com/elixir-plug/plug","vendor":"elixir-plug","versions":[{"lessThan":"1.15.4","status":"affected","version":"1.4.0","versionType":"semver"},{"lessThan":"1.16.3","status":"affected","version":"1.16.0","versionType":"semver"},{"lessThan":"1.17.1","statu…

  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:fe94dc8ed135ebf95921afa1a170c3b0ff0fd304bd1ceae1472a166422f05fd7 · sha256:690ec5b868226da2… · /containers/cna/affected/0

{"collectionURL":"https://github.com","cpes":["cpe:2.3:a:plug_project:plug:*:*:*:*:*:*:*:*"],"defaultStatus":"unaffected","modules":["Elixir.Plug.Conn"],"packageName":"elixir-plug/plug","packageURL":"pkg:github/elixir-plug/plug","product":"plug","programFiles":["lib/plug/conn.ex"],"programRoutines":[{"name":"'Elixir.Plug.Conn':read_part_headers/2"}],"repo":"https://github.com/elixir-plug/plug","vendor":"elixir-plug","versions":[{"changes":[{"at":"2cb7958d33030aa826b0c7404375844d4593d43a","status":"unaffected"},{"at":"aa69c5ece99c40ded88b8c6581ecc86664b0b734","status":"unaffected"},{"at":"d5dff…

  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:fe94dc8ed135ebf95921afa1a170c3b0ff0fd304bd1ceae1472a166422f05fd7 · sha256:690ec5b868226da2… · /containers/cna/affected/1

Affected products and versions

2 source assertions
{"collectionURL":"https://repo.hex.pm","cpes":["cpe:2.3:a:plug_project:plug:*:*:*:*:*:*:*:*"],"defaultStatus":"unaffected","modules":["Elixir.Plug.Conn"],"packageName":"plug","packageURL":"pkg:hex/plug","product":"plug","programFiles":["lib/plug/conn.ex"],"programRoutines":[{"name":"'Elixir.Plug.Conn':read_part_headers/2"}],"repo":"https://github.com/elixir-plug/plug","vendor":"elixir-plug","versions":[{"lessThan":"1.15.4","status":"affected","version":"1.4.0","versionType":"semver"},{"lessThan":"1.16.3","status":"affected","version":"1.16.0","versionType":"semver"},{"lessThan":"1.17.1","statu…
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:fe94dc8ed135ebf95921afa1a170c3b0ff0fd304bd1ceae1472a166422f05fd7 · sha256:690ec5b868226da2… · /containers/cna/affected/0
{"collectionURL":"https://github.com","cpes":["cpe:2.3:a:plug_project:plug:*:*:*:*:*:*:*:*"],"defaultStatus":"unaffected","modules":["Elixir.Plug.Conn"],"packageName":"elixir-plug/plug","packageURL":"pkg:github/elixir-plug/plug","product":"plug","programFiles":["lib/plug/conn.ex"],"programRoutines":[{"name":"'Elixir.Plug.Conn':read_part_headers/2"}],"repo":"https://github.com/elixir-plug/plug","vendor":"elixir-plug","versions":[{"changes":[{"at":"2cb7958d33030aa826b0c7404375844d4593d43a","status":"unaffected"},{"at":"aa69c5ece99c40ded88b8c6581ecc86664b0b734","status":"unaffected"},{"at":"d5dff…
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:fe94dc8ed135ebf95921afa1a170c3b0ff0fd304bd1ceae1472a166422f05fd7 · sha256:690ec5b868226da2… · /containers/cna/affected/1

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:N/VI:N/VA:H/SC:N/SI:N/SA:N","version":"4.0","vulnAvailabilityImpact":"HIGH","vulnConfidentialityImpact":"NONE","vulnIntegrityImpact":"NONE"},"metric_type":"cvssV4_0"}
  • cve_program_cvelist_v5cvss
    urn:baitaphish:normalized-source-record:v2:fe94dc8ed135ebf95921afa1a170c3b0ff0fd304bd1ceae1472a166422f05fd7 · sha256:690ec5b868226da2… · /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:fe94dc8ed135ebf95921afa1a170c3b0ff0fd304bd1ceae1472a166422f05fd7 · sha256:690ec5b868226da2… · /containers/cna/problemTypes/0/descriptions/0

Source references

9 source assertions
{"tags":["related"],"url":"https://cna.erlef.org/cves/CVE-2026-8466.html"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:fe94dc8ed135ebf95921afa1a170c3b0ff0fd304bd1ceae1472a166422f05fd7 · sha256:690ec5b868226da2… · /containers/cna/references/3
{"tags":["related"],"url":"https://cna.erlef.org/cves/CVE-2026-8468.html"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:fe94dc8ed135ebf95921afa1a170c3b0ff0fd304bd1ceae1472a166422f05fd7 · sha256:690ec5b868226da2… · /containers/cna/references/1
{"tags":["patch"],"url":"https://github.com/elixir-plug/plug/commit/2cb7958d33030aa826b0c7404375844d4593d43a"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:fe94dc8ed135ebf95921afa1a170c3b0ff0fd304bd1ceae1472a166422f05fd7 · sha256:690ec5b868226da2… · /containers/cna/references/4
{"tags":["patch"],"url":"https://github.com/elixir-plug/plug/commit/33858427c7f2737d560a2e40a0c9a9270d77d1d7"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:fe94dc8ed135ebf95921afa1a170c3b0ff0fd304bd1ceae1472a166422f05fd7 · sha256:690ec5b868226da2… · /containers/cna/references/8
{"tags":["patch"],"url":"https://github.com/elixir-plug/plug/commit/aa69c5ece99c40ded88b8c6581ecc86664b0b734"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:fe94dc8ed135ebf95921afa1a170c3b0ff0fd304bd1ceae1472a166422f05fd7 · sha256:690ec5b868226da2… · /containers/cna/references/5
{"tags":["patch"],"url":"https://github.com/elixir-plug/plug/commit/d5dfffe25e975585227b1b85d247b0d14164bc45"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:fe94dc8ed135ebf95921afa1a170c3b0ff0fd304bd1ceae1472a166422f05fd7 · sha256:690ec5b868226da2… · /containers/cna/references/6
{"tags":["patch"],"url":"https://github.com/elixir-plug/plug/commit/df812a1527bae9e941965e897308a2b8bbf83a94"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:fe94dc8ed135ebf95921afa1a170c3b0ff0fd304bd1ceae1472a166422f05fd7 · sha256:690ec5b868226da2… · /containers/cna/references/7
{"tags":["vendor-advisory","related"],"url":"https://github.com/elixir-plug/plug/security/advisories/GHSA-468c-vq7p-gh64"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:fe94dc8ed135ebf95921afa1a170c3b0ff0fd304bd1ceae1472a166422f05fd7 · sha256:690ec5b868226da2… · /containers/cna/references/0
{"tags":["related"],"url":"https://osv.dev/vulnerability/EEF-CVE-2026-8468"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:fe94dc8ed135ebf95921afa1a170c3b0ff0fd304bd1ceae1472a166422f05fd7 · sha256:690ec5b868226da2… · /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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