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CVE-2026-58226

Inefficient Algorithmic Complexity vulnerability in elixir-mint hpax allows unauthenticated denial-of-service via unbounded HPACK integer decoding. hpax decodes HPACK variable-length integers with no upper bound on the decoded value or the number of continuation octets. 'Elixir.HPAX.Types':decode_remaining_integer/3 accumulates the integer as int + (value <<< m), shifting by 7 more bits for each continuation octet and stopping only on a terminating octet or truncated input, never because the in
Lifecycle PUBLISHED1 preserved revisionFact urn:baitaphish:canonical-cve-fact-revision:v2:d9ade42f070d32bdd0bdb483383dae129b9ec00452dacd86607876085dba0fce
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:hpax:*:*:*:*:*:*:*:*"],"defaultStatus":"unaffected","modules":["Elixir.HPAX","Elixir.HPAX.Types"],"packageName":"hpax","packageURL":"pkg:hex/hpax","product":"hpax","programFiles":["lib/hpax.ex","lib/hpax/types.ex"],"programRoutines":[{"name":"'Elixir.HPAX':decode/2"},{"name":"'Elixir.HPAX.Types':decode_integer/2"},{"name":"'Elixir.HPAX.Types':decode_remaining_integer/3"}],"repo":"https://github.com/elixir-mint/hpax","vendor":"elixir-mint","versions":[{"lessThan":"1.0.4","status":"affected","version":"0.1.1","versionType":"se…

  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:599057e7331811e525e5b10499b58e34d88690a1fdcff7813d1bef1037549fb9 · sha256:a69b9efb5ede0014… · /containers/cna/affected/0

{"collectionURL":"https://github.com","cpes":["cpe:2.3:a:elixir-mint:hpax:*:*:*:*:*:*:*:*"],"defaultStatus":"unaffected","modules":["Elixir.HPAX","Elixir.HPAX.Types"],"packageName":"elixir-mint/hpax","packageURL":"pkg:github/elixir-mint/hpax","product":"hpax","programFiles":["lib/hpax.ex","lib/hpax/types.ex"],"programRoutines":[{"name":"'Elixir.HPAX':decode/2"},{"name":"'Elixir.HPAX.Types':decode_integer/2"},{"name":"'Elixir.HPAX.Types':decode_remaining_integer/3"}],"repo":"https://github.com/elixir-mint/hpax","vendor":"elixir-mint","versions":[{"lessThan":"1ba4bb2dc91e80089cf89c73970ac3ded76f…

  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:599057e7331811e525e5b10499b58e34d88690a1fdcff7813d1bef1037549fb9 · sha256:a69b9efb5ede0014… · /containers/cna/affected/1

Affected products and versions

2 source assertions
{"collectionURL":"https://repo.hex.pm","cpes":["cpe:2.3:a:elixir-mint:hpax:*:*:*:*:*:*:*:*"],"defaultStatus":"unaffected","modules":["Elixir.HPAX","Elixir.HPAX.Types"],"packageName":"hpax","packageURL":"pkg:hex/hpax","product":"hpax","programFiles":["lib/hpax.ex","lib/hpax/types.ex"],"programRoutines":[{"name":"'Elixir.HPAX':decode/2"},{"name":"'Elixir.HPAX.Types':decode_integer/2"},{"name":"'Elixir.HPAX.Types':decode_remaining_integer/3"}],"repo":"https://github.com/elixir-mint/hpax","vendor":"elixir-mint","versions":[{"lessThan":"1.0.4","status":"affected","version":"0.1.1","versionType":"se…
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:599057e7331811e525e5b10499b58e34d88690a1fdcff7813d1bef1037549fb9 · sha256:a69b9efb5ede0014… · /containers/cna/affected/0
{"collectionURL":"https://github.com","cpes":["cpe:2.3:a:elixir-mint:hpax:*:*:*:*:*:*:*:*"],"defaultStatus":"unaffected","modules":["Elixir.HPAX","Elixir.HPAX.Types"],"packageName":"elixir-mint/hpax","packageURL":"pkg:github/elixir-mint/hpax","product":"hpax","programFiles":["lib/hpax.ex","lib/hpax/types.ex"],"programRoutines":[{"name":"'Elixir.HPAX':decode/2"},{"name":"'Elixir.HPAX.Types':decode_integer/2"},{"name":"'Elixir.HPAX.Types':decode_remaining_integer/3"}],"repo":"https://github.com/elixir-mint/hpax","vendor":"elixir-mint","versions":[{"lessThan":"1ba4bb2dc91e80089cf89c73970ac3ded76f…
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:599057e7331811e525e5b10499b58e34d88690a1fdcff7813d1bef1037549fb9 · sha256:a69b9efb5ede0014… · /containers/cna/affected/1

Provider-owned CVSS observations

1 source assertion
{"metric":{"attackComplexity":"LOW","attackRequirements":"NONE","attackVector":"NETWORK","baseScore":8.7,"baseSeverity":"HIGH","privilegesRequired":"NONE","subAvailabilityImpact":"NONE","subConfidentialityImpact":"NONE","subIntegrityImpact":"NONE","userInteraction":"NONE","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":"NONE","vulnIntegrityImpact":"NONE"},"metric_type":"cvssV4_0"}
  • cve_program_cvelist_v5cvss
    urn:baitaphish:normalized-source-record:v2:599057e7331811e525e5b10499b58e34d88690a1fdcff7813d1bef1037549fb9 · sha256:a69b9efb5ede0014… · /containers/cna/metrics/0/cvssV4_0

CWE assertions

1 source assertion
{"cweId":"CWE-407","description":"CWE-407 Inefficient Algorithmic Complexity","lang":"en","type":"CWE"}
  • cve_program_cvelist_v5cwe
    urn:baitaphish:normalized-source-record:v2:599057e7331811e525e5b10499b58e34d88690a1fdcff7813d1bef1037549fb9 · sha256:a69b9efb5ede0014… · /containers/cna/problemTypes/0/descriptions/0

Source references

5 source assertions
{"tags":["related"],"url":"https://cna.erlef.org/cves/CVE-2026-58226.html"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:599057e7331811e525e5b10499b58e34d88690a1fdcff7813d1bef1037549fb9 · sha256:a69b9efb5ede0014… · /containers/cna/references/1
{"tags":["patch"],"url":"https://github.com/elixir-mint/hpax/commit/1ba4bb2dc91e80089cf89c73970ac3ded76f17eb"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:599057e7331811e525e5b10499b58e34d88690a1fdcff7813d1bef1037549fb9 · sha256:a69b9efb5ede0014… · /containers/cna/references/3
{"tags":["vendor-advisory","related"],"url":"https://github.com/elixir-mint/hpax/security/advisories/GHSA-jj2p-32j7-whj2"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:599057e7331811e525e5b10499b58e34d88690a1fdcff7813d1bef1037549fb9 · sha256:a69b9efb5ede0014… · /containers/cna/references/0
{"tags":["exploit"],"url":"https://github.com/elixir-mint/hpax/security/advisories/GHSA-jj2p-32j7-whj2"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:599057e7331811e525e5b10499b58e34d88690a1fdcff7813d1bef1037549fb9 · sha256:a69b9efb5ede0014… · /containers/adp/0/references/0
{"tags":["related"],"url":"https://osv.dev/vulnerability/EEF-CVE-2026-58226"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:599057e7331811e525e5b10499b58e34d88690a1fdcff7813d1bef1037549fb9 · sha256:a69b9efb5ede0014… · /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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