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CVE-2026-43967

Inefficient Algorithmic Complexity vulnerability in absinthe-graphql absinthe allows unauthenticated denial of service via quadratic fragment-name uniqueness validation. 'Elixir.Absinthe.Phase.Document.Validation.UniqueFragmentNames':run/2 iterates over all fragments and for each one calls duplicate?/2, which evaluates Enum.count(fragments, &(&1.name == name)) — a full linear scan of the fragment list. The result is O(N²) comparisons per document, where N is the number of fragment definitions s
Lifecycle PUBLISHED1 preserved revisionFact urn:baitaphish:canonical-cve-fact-revision:v2:a58c18f5c160d8d965e4600f28a4cae79b658179cf824ceed7caf4c740c5b8e3
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://github.com","cpes":["cpe:2.3:a:absinthe-graphql:absinthe:*:*:*:*:*:*:*:*"],"defaultStatus":"unaffected","modules":["'Elixir.Absinthe.Phase.Document.Validation.UniqueFragmentNames'"],"packageName":"absinthe-graphql/absinthe","packageURL":"pkg:github/absinthe-graphql/absinthe","product":"absinthe","programFiles":["lib/absinthe/phase/document/validation/unique_fragment_names.ex"],"programRoutines":[{"name":"'Elixir.Absinthe.Phase.Document.Validation.UniqueFragmentNames':run/2"},{"name":"'Elixir.Absinthe.Phase.Document.Validation.UniqueFragmentNames':duplicate?/2"}],"repo…

  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:40b2920ae782b453096d043091472c61bcc795fb7d9b7db8b10be0a925bc7ea9 · sha256:de132c35b5e491c2… · /containers/cna/affected/1

{"collectionURL":"https://repo.hex.pm","cpes":["cpe:2.3:a:absinthe-graphql:absinthe:*:*:*:*:*:*:*:*"],"defaultStatus":"unaffected","modules":["'Elixir.Absinthe.Phase.Document.Validation.UniqueFragmentNames'"],"packageName":"absinthe","packageURL":"pkg:hex/absinthe","product":"absinthe","programFiles":["lib/absinthe/phase/document/validation/unique_fragment_names.ex"],"programRoutines":[{"name":"'Elixir.Absinthe.Phase.Document.Validation.UniqueFragmentNames':run/2"},{"name":"'Elixir.Absinthe.Phase.Document.Validation.UniqueFragmentNames':duplicate?/2"}],"repo":"https://github.com/absinthe-graph…

  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:40b2920ae782b453096d043091472c61bcc795fb7d9b7db8b10be0a925bc7ea9 · sha256:de132c35b5e491c2… · /containers/cna/affected/0

Affected products and versions

2 source assertions
{"collectionURL":"https://github.com","cpes":["cpe:2.3:a:absinthe-graphql:absinthe:*:*:*:*:*:*:*:*"],"defaultStatus":"unaffected","modules":["'Elixir.Absinthe.Phase.Document.Validation.UniqueFragmentNames'"],"packageName":"absinthe-graphql/absinthe","packageURL":"pkg:github/absinthe-graphql/absinthe","product":"absinthe","programFiles":["lib/absinthe/phase/document/validation/unique_fragment_names.ex"],"programRoutines":[{"name":"'Elixir.Absinthe.Phase.Document.Validation.UniqueFragmentNames':run/2"},{"name":"'Elixir.Absinthe.Phase.Document.Validation.UniqueFragmentNames':duplicate?/2"}],"repo…
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:40b2920ae782b453096d043091472c61bcc795fb7d9b7db8b10be0a925bc7ea9 · sha256:de132c35b5e491c2… · /containers/cna/affected/1
{"collectionURL":"https://repo.hex.pm","cpes":["cpe:2.3:a:absinthe-graphql:absinthe:*:*:*:*:*:*:*:*"],"defaultStatus":"unaffected","modules":["'Elixir.Absinthe.Phase.Document.Validation.UniqueFragmentNames'"],"packageName":"absinthe","packageURL":"pkg:hex/absinthe","product":"absinthe","programFiles":["lib/absinthe/phase/document/validation/unique_fragment_names.ex"],"programRoutines":[{"name":"'Elixir.Absinthe.Phase.Document.Validation.UniqueFragmentNames':run/2"},{"name":"'Elixir.Absinthe.Phase.Document.Validation.UniqueFragmentNames':duplicate?/2"}],"repo":"https://github.com/absinthe-graph…
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:40b2920ae782b453096d043091472c61bcc795fb7d9b7db8b10be0a925bc7ea9 · sha256:de132c35b5e491c2… · /containers/cna/affected/0

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:v2:40b2920ae782b453096d043091472c61bcc795fb7d9b7db8b10be0a925bc7ea9 · sha256:de132c35b5e491c2… · /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:v2:40b2920ae782b453096d043091472c61bcc795fb7d9b7db8b10be0a925bc7ea9 · sha256:de132c35b5e491c2… · /containers/cna/problemTypes/0/descriptions/0

Source references

4 source assertions
{"tags":["related"],"url":"https://cna.erlef.org/cves/CVE-2026-43967.html"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:40b2920ae782b453096d043091472c61bcc795fb7d9b7db8b10be0a925bc7ea9 · sha256:de132c35b5e491c2… · /containers/cna/references/1
{"tags":["patch"],"url":"https://github.com/absinthe-graphql/absinthe/commit/223600c520493dcaf95080af552c413099f92c9d"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:40b2920ae782b453096d043091472c61bcc795fb7d9b7db8b10be0a925bc7ea9 · sha256:de132c35b5e491c2… · /containers/cna/references/3
{"tags":["vendor-advisory","related"],"url":"https://github.com/absinthe-graphql/absinthe/security/advisories/GHSA-9mhv-8h52-q7q2"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:40b2920ae782b453096d043091472c61bcc795fb7d9b7db8b10be0a925bc7ea9 · sha256:de132c35b5e491c2… · /containers/cna/references/0
{"tags":["related"],"url":"https://osv.dev/vulnerability/EEF-CVE-2026-43967"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:40b2920ae782b453096d043091472c61bcc795fb7d9b7db8b10be0a925bc7ea9 · sha256:de132c35b5e491c2… · /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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