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CVE-2026-48862

Allocation of Resources Without Limits or Throttling vulnerability in elixir-mint Mint allows attacker-controlled HTTP/2 servers to exhaust memory in a Mint client via PUSH_PROMISE flooding. In lib/mint/http2.ex, Mint.HTTP2.decode_push_promise_headers_and_add_response/5 inserts a :reserved_remote entry into conn.streams for every promised stream ID. The neighbouring Mint.HTTP2.assert_valid_promised_stream_id/2 only verifies that the promised ID is even and not already present; client_settings.m
Lifecycle PUBLISHED1 preserved revisionFact urn:baitaphish:canonical-cve-fact-revision:v2:3c7835ddcac4c3018c0cd7baa02d119fc65a6f0bb3ac41b37ef50c918cbc621f
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:elixir-mint:mint:*:*:*:*:*:*:*:*"],"defaultStatus":"unaffected","modules":["'Elixir.Mint.HTTP2'"],"packageName":"mint","packageURL":"pkg:hex/mint","product":"mint","programFiles":["lib/mint/http2.ex"],"programRoutines":[{"name":"'Elixir.Mint.HTTP2':handle_push_promise/3"},{"name":"'Elixir.Mint.HTTP2':decode_push_promise_headers_and_add_response/5"}],"repo":"https://github.com/elixir-mint/mint","vendor":"elixir-mint","versions":[{"lessThan":"1.9.0","status":"affected","version":"0.2.0","versionType":"semver"}]}

  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:ad791c55a54989afc558f55e2a34614fd507e359ae5519e57c7934fea6f02700 · sha256:b5e2eb8c7403f41a… · /containers/cna/affected/0

{"collectionURL":"https://github.com","cpes":["cpe:2.3:a:elixir-mint:mint:*:*:*:*:*:*:*:*"],"defaultStatus":"unaffected","modules":["'Elixir.Mint.HTTP2'"],"packageName":"elixir-mint/mint","packageURL":"pkg:github/elixir-mint/mint","product":"mint","programFiles":["lib/mint/http2.ex"],"programRoutines":[{"name":"'Elixir.Mint.HTTP2':handle_push_promise/3"},{"name":"'Elixir.Mint.HTTP2':decode_push_promise_headers_and_add_response/5"}],"repo":"https://github.com/elixir-mint/mint.git","vendor":"elixir-mint","versions":[{"lessThan":"70b97b6a5209fb288b0e04d8e657dda26c59de67","status":"affected","vers…

  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:ad791c55a54989afc558f55e2a34614fd507e359ae5519e57c7934fea6f02700 · sha256:b5e2eb8c7403f41a… · /containers/cna/affected/1

Affected products and versions

2 source assertions
{"collectionURL":"https://repo.hex.pm","cpes":["cpe:2.3:a:elixir-mint:mint:*:*:*:*:*:*:*:*"],"defaultStatus":"unaffected","modules":["'Elixir.Mint.HTTP2'"],"packageName":"mint","packageURL":"pkg:hex/mint","product":"mint","programFiles":["lib/mint/http2.ex"],"programRoutines":[{"name":"'Elixir.Mint.HTTP2':handle_push_promise/3"},{"name":"'Elixir.Mint.HTTP2':decode_push_promise_headers_and_add_response/5"}],"repo":"https://github.com/elixir-mint/mint","vendor":"elixir-mint","versions":[{"lessThan":"1.9.0","status":"affected","version":"0.2.0","versionType":"semver"}]}
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:ad791c55a54989afc558f55e2a34614fd507e359ae5519e57c7934fea6f02700 · sha256:b5e2eb8c7403f41a… · /containers/cna/affected/0
{"collectionURL":"https://github.com","cpes":["cpe:2.3:a:elixir-mint:mint:*:*:*:*:*:*:*:*"],"defaultStatus":"unaffected","modules":["'Elixir.Mint.HTTP2'"],"packageName":"elixir-mint/mint","packageURL":"pkg:github/elixir-mint/mint","product":"mint","programFiles":["lib/mint/http2.ex"],"programRoutines":[{"name":"'Elixir.Mint.HTTP2':handle_push_promise/3"},{"name":"'Elixir.Mint.HTTP2':decode_push_promise_headers_and_add_response/5"}],"repo":"https://github.com/elixir-mint/mint.git","vendor":"elixir-mint","versions":[{"lessThan":"70b97b6a5209fb288b0e04d8e657dda26c59de67","status":"affected","vers…
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:ad791c55a54989afc558f55e2a34614fd507e359ae5519e57c7934fea6f02700 · sha256:b5e2eb8c7403f41a… · /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:ad791c55a54989afc558f55e2a34614fd507e359ae5519e57c7934fea6f02700 · sha256:b5e2eb8c7403f41a… · /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:ad791c55a54989afc558f55e2a34614fd507e359ae5519e57c7934fea6f02700 · sha256:b5e2eb8c7403f41a… · /containers/cna/problemTypes/0/descriptions/0

Source references

5 source assertions
{"tags":["related"],"url":"https://cna.erlef.org/cves/CVE-2026-48862.html"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:ad791c55a54989afc558f55e2a34614fd507e359ae5519e57c7934fea6f02700 · sha256:b5e2eb8c7403f41a… · /containers/cna/references/1
{"tags":["patch"],"url":"https://github.com/elixir-mint/mint/commit/70b97b6a5209fb288b0e04d8e657dda26c59de67"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:ad791c55a54989afc558f55e2a34614fd507e359ae5519e57c7934fea6f02700 · sha256:b5e2eb8c7403f41a… · /containers/cna/references/3
{"tags":["exploit"],"url":"https://github.com/elixir-mint/mint/security/advisories/GHSA-g586-ccqf-7x4r"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:ad791c55a54989afc558f55e2a34614fd507e359ae5519e57c7934fea6f02700 · sha256:b5e2eb8c7403f41a… · /containers/adp/0/references/0
{"tags":["vendor-advisory","related"],"url":"https://github.com/elixir-mint/mint/security/advisories/GHSA-g586-ccqf-7x4r"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:ad791c55a54989afc558f55e2a34614fd507e359ae5519e57c7934fea6f02700 · sha256:b5e2eb8c7403f41a… · /containers/cna/references/0
{"tags":["related"],"url":"https://osv.dev/vulnerability/EEF-CVE-2026-48862"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:ad791c55a54989afc558f55e2a34614fd507e359ae5519e57c7934fea6f02700 · sha256:b5e2eb8c7403f41a… · /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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