Absinthe: Quadratic fragment-name uniqueness check

Summary An unauthenticated attacker can stall an Absinthe-backed GraphQL endpoint by submitting a query that contains many fragment definitions. The fragment-name uniqueness validation phase is ON² in the number of fragments, so a single modestly-sized request burns seconds of CPU per worker, and...

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...

CVE-2026-42793 Atom table exhaustion via attacker-controlled GraphQL SDL names in absinthe

Allocation of Resources Without Limits or Throttling vulnerability in absinthe-graphql absinthe allows unauthenticated denial of service via atom table exhaustion when parsing attacker-controlled GraphQL SDL. Multiple Blueprint.Draft.convert/2 implementations in Absinthe's SDL language modules ca...

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...

CVE-2026-43967 Quadratic fragment-name uniqueness check causes denial of service in absinthe

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...

PT-2026-39148

Name of the Vulnerable Software and Affected Versions absinthe versions 1.2.0 through 1.10.1 Description An inefficient algorithmic complexity issue allows unauthenticated denial of service through quadratic fragment-name uniqueness validation. The function run/2 within...