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CVE-2026-59246

Allocation of resources without limits vulnerability in elixir-mint mint allows a remote HTTP/2 server to exhaust memory on the client host and cause a denial of service. The Mint.HTTP2.handle_continuation/3 function in lib/mint/http2.ex accumulates the header-block fragment carried by each HTTP/2 CONTINUATION frame into a growing conn.headers_being_processed nesting, one level deeper per frame, and only releases it when a frame with the END_HEADERS flag arrives. The only guard on this accumula
Lifecycle PUBLISHED1 preserved revisionFact urn:baitaphish:canonical-cve-fact-revision:v2:d47aa87bc5e60bccd7efc25538e04ad4abd904821960101170371f9a083b3fdf
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_continuation/3"},{"name":"'Elixir.Mint.HTTP2':assert_header_block_within_max_size/2"}],"repo":"https://github.com/elixir-mint/mint","vendor":"elixir-mint","versions":[{"lessThan":"1.9.2","status":"affected","version":"0.1.0","versionType":"semver"}]}

  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:145e7967baafd4ec241fe342577e29e980dd9a07ed87a9fa187261f2e5fd27f9 · sha256:e2808f14fcb10196… · /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_continuation/3"},{"name":"'Elixir.Mint.HTTP2':assert_header_block_within_max_size/2"}],"repo":"https://github.com/elixir-mint/mint","vendor":"elixir-mint","versions":[{"lessThan":"5779de1666344b32aefc4354184ea07f902f73ce","status":"affected","version":"596ca43…

  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:145e7967baafd4ec241fe342577e29e980dd9a07ed87a9fa187261f2e5fd27f9 · sha256:e2808f14fcb10196… · /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_continuation/3"},{"name":"'Elixir.Mint.HTTP2':assert_header_block_within_max_size/2"}],"repo":"https://github.com/elixir-mint/mint","vendor":"elixir-mint","versions":[{"lessThan":"1.9.2","status":"affected","version":"0.1.0","versionType":"semver"}]}
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:145e7967baafd4ec241fe342577e29e980dd9a07ed87a9fa187261f2e5fd27f9 · sha256:e2808f14fcb10196… · /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_continuation/3"},{"name":"'Elixir.Mint.HTTP2':assert_header_block_within_max_size/2"}],"repo":"https://github.com/elixir-mint/mint","vendor":"elixir-mint","versions":[{"lessThan":"5779de1666344b32aefc4354184ea07f902f73ce","status":"affected","version":"596ca43…
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:145e7967baafd4ec241fe342577e29e980dd9a07ed87a9fa187261f2e5fd27f9 · sha256:e2808f14fcb10196… · /containers/cna/affected/1

Provider-owned CVSS observations

1 source assertion
{"metric":{"attackComplexity":"LOW","attackRequirements":"PRESENT","attackVector":"NETWORK","baseScore":6.3,"baseSeverity":"MEDIUM","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:L/SC:N/SI:N/SA:N","version":"4.0","vulnAvailabilityImpact":"LOW","vulnConfidentialityImpact":"NONE","vulnIntegrityImpact":"NONE"},"metric_type":"cvssV4_0"}
  • cve_program_cvelist_v5cvss
    urn:baitaphish:normalized-source-record:v2:145e7967baafd4ec241fe342577e29e980dd9a07ed87a9fa187261f2e5fd27f9 · sha256:e2808f14fcb10196… · /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:v2:145e7967baafd4ec241fe342577e29e980dd9a07ed87a9fa187261f2e5fd27f9 · sha256:e2808f14fcb10196… · /containers/cna/problemTypes/0/descriptions/0

Source references

5 source assertions
{"tags":["related"],"url":"https://cna.erlef.org/cves/CVE-2026-59246.html"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:145e7967baafd4ec241fe342577e29e980dd9a07ed87a9fa187261f2e5fd27f9 · sha256:e2808f14fcb10196… · /containers/cna/references/1
{"tags":["patch"],"url":"https://github.com/elixir-mint/mint/commit/5779de1666344b32aefc4354184ea07f902f73ce"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:145e7967baafd4ec241fe342577e29e980dd9a07ed87a9fa187261f2e5fd27f9 · sha256:e2808f14fcb10196… · /containers/cna/references/3
{"tags":["vendor-advisory","related"],"url":"https://github.com/elixir-mint/mint/security/advisories/GHSA-8pf6-g464-h6h9"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:145e7967baafd4ec241fe342577e29e980dd9a07ed87a9fa187261f2e5fd27f9 · sha256:e2808f14fcb10196… · /containers/cna/references/0
{"tags":["exploit"],"url":"https://github.com/elixir-mint/mint/security/advisories/GHSA-8pf6-g464-h6h9"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:145e7967baafd4ec241fe342577e29e980dd9a07ed87a9fa187261f2e5fd27f9 · sha256:e2808f14fcb10196… · /containers/adp/0/references/0
{"tags":["related"],"url":"https://osv.dev/vulnerability/EEF-CVE-2026-59246"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:145e7967baafd4ec241fe342577e29e980dd9a07ed87a9fa187261f2e5fd27f9 · sha256:e2808f14fcb10196… · /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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