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6 vulnerabilities by absinthe-graphql
CVE-2026-43967 (GCVE-0-2026-43967)
Vulnerability from nvd – Published: 2026-05-08 15:42 – Updated: 2026-05-09 04:18
VLAI
EPSS
VEX
Title
Quadratic fragment-name uniqueness check causes denial of service in absinthe
Summary
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 supplied by the caller.
Because input.fragments is built directly from the GraphQL query body, N is fully attacker-controlled. A minimum-size fragment definition is roughly 16 bytes, so a ~1 MB document carries ~60,000 fragments and forces ~3.6 × 10⁹ comparisons inside this single validation phase. No authentication, schema knowledge, or special configuration is required.
This issue affects absinthe: from 1.2.0 before 1.10.2.
Severity
SSVC
Exploitation: none
Automatable: yes
Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
- CWE-407 - Inefficient Algorithmic Complexity
Assigner
References
4 references
| URL | Tags |
|---|---|
| https://github.com/absinthe-graphql/absinthe/secu… | vendor-advisoryrelated |
| https://cna.erlef.org/cves/CVE-2026-43967.html | related |
| https://osv.dev/vulnerability/EEF-CVE-2026-43967 | related |
| https://github.com/absinthe-graphql/absinthe/comm… | patch |
Impacted products
2 products
| Vendor | Product | Version | |
|---|---|---|---|
| absinthe-graphql | absinthe |
Affected:
1.2.0 , < 1.10.2
(semver)
cpe:2.3:a:absinthe-graphql:absinthe:*:*:*:*:*:*:*:* |
|
| absinthe-graphql | absinthe |
Affected:
0b46e3bcc06c0d3797bacd64761b908a84646c1d , < 223600c520493dcaf95080af552c413099f92c9d
(git)
cpe:2.3:a:absinthe-graphql:absinthe:*:*:*:*:*:*:*:* |
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CVE-2026-42794 (GCVE-0-2026-42794)
Vulnerability from nvd – Published: 2026-05-08 15:42 – Updated: 2026-05-16 10:21
VLAI
EPSS
VEX
Title
Reflected XSS via backslash bypass in GraphiQL js_escape in absinthe_plug
Summary
Improper Neutralization of Input During Web Page Generation (XSS) vulnerability in absinthe-graphql absinthe_plug allows reflected cross-site scripting via the GraphiQL interface.
'Elixir.Absinthe.Plug.GraphiQL':js_escape/1 in lib/absinthe/plug/graphiql.ex escapes single quotes and newlines in the query GET parameter before embedding it in an inline JavaScript string, but does not escape backslashes. An attacker can bypass the escaping by prefixing a quote with a backslash (e.g. \'), breaking out of the string context and executing arbitrary JavaScript in the victim's browser.
This issue affects absinthe_plug: from 1.2.0 before 1.5.10.
Severity
SSVC
Exploitation: poc
Automatable: no
Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
- CWE-79 - Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
Assigner
References
4 references
| URL | Tags |
|---|---|
| https://github.com/absinthe-graphql/absinthe_plug… | vendor-advisory |
| https://cna.erlef.org/cves/CVE-2026-42794.html | related |
| https://osv.dev/vulnerability/EEF-CVE-2026-42794 | related |
| https://github.com/absinthe-graphql/absinthe_plug… | patch |
Impacted products
2 products
| Vendor | Product | Version | |
|---|---|---|---|
| absinthe-graphql | absinthe_plug |
Affected:
1.2.0 , < 1.5.10
(semver)
cpe:2.3:a:absinthe-graphql:absinthe_plug:*:*:*:*:*:*:*:* |
|
| absinthe-graphql | absinthe_plug |
Affected:
26241817cb4b9be4de3f5972c5fba3d36de3d713 , < 23a0d5658d32420086711adf4ce8f05febb09963
(git)
cpe:2.3:a:absinthe-graphql:absinthe_plug:*:*:*:*:*:*:*:* |
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CVE-2026-42793 (GCVE-0-2026-42793)
Vulnerability from nvd – Published: 2026-05-08 15:42 – Updated: 2026-05-09 12:41
VLAI
EPSS
VEX
Title
Atom table exhaustion via attacker-controlled GraphQL SDL names in absinthe
Summary
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 call String.to_atom/1 on attacker-controlled names from parsed GraphQL SDL documents, including directive names, field names, type names, and argument names. Because atoms are never garbage-collected and the BEAM atom table has a fixed limit (default 1,048,576), each unique name permanently consumes one slot. An attacker can exhaust the atom table by submitting SDL documents containing enough unique names, causing the Erlang VM to abort with system_limit and taking down the entire node.
Any application that passes attacker-controlled GraphQL SDL through Absinthe's parser is exposed — for example, a schema-upload endpoint, a federation gateway that ingests remote SDL, or any developer tool that runs the parser over user-supplied documents.
This issue affects absinthe: from 1.5.0 before 1.10.2.
Severity
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
- CWE-770 - Allocation of Resources Without Limits or Throttling
Assigner
References
4 references
| URL | Tags |
|---|---|
| https://github.com/absinthe-graphql/absinthe/secu… | vendor-advisoryrelated |
| https://cna.erlef.org/cves/CVE-2026-42793.html | related |
| https://osv.dev/vulnerability/EEF-CVE-2026-42793 | related |
| https://github.com/absinthe-graphql/absinthe/comm… | patch |
Impacted products
2 products
| Vendor | Product | Version | |
|---|---|---|---|
| absinthe-graphql | absinthe |
Affected:
1.5.0 , < 1.10.2
(semver)
cpe:2.3:a:absinthe-graphql:absinthe:*:*:*:*:*:*:*:* |
|
| absinthe-graphql | absinthe |
Affected:
d0eae7764520d4e8e5dfff619068c0de911aec33 , < dd842b938e3823f345c10416914ffab5d5536838
(git)
cpe:2.3:a:absinthe-graphql:absinthe:*:*:*:*:*:*:*:* |
Credits
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CVE-2026-42793 (GCVE-0-2026-42793)
Vulnerability from cvelistv5 – Published: 2026-05-08 15:42 – Updated: 2026-05-09 12:41
VLAI
EPSS
VEX
Title
Atom table exhaustion via attacker-controlled GraphQL SDL names in absinthe
Summary
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 call String.to_atom/1 on attacker-controlled names from parsed GraphQL SDL documents, including directive names, field names, type names, and argument names. Because atoms are never garbage-collected and the BEAM atom table has a fixed limit (default 1,048,576), each unique name permanently consumes one slot. An attacker can exhaust the atom table by submitting SDL documents containing enough unique names, causing the Erlang VM to abort with system_limit and taking down the entire node.
Any application that passes attacker-controlled GraphQL SDL through Absinthe's parser is exposed — for example, a schema-upload endpoint, a federation gateway that ingests remote SDL, or any developer tool that runs the parser over user-supplied documents.
This issue affects absinthe: from 1.5.0 before 1.10.2.
Severity
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
- CWE-770 - Allocation of Resources Without Limits or Throttling
Assigner
References
4 references
| URL | Tags |
|---|---|
| https://github.com/absinthe-graphql/absinthe/secu… | vendor-advisoryrelated |
| https://cna.erlef.org/cves/CVE-2026-42793.html | related |
| https://osv.dev/vulnerability/EEF-CVE-2026-42793 | related |
| https://github.com/absinthe-graphql/absinthe/comm… | patch |
Impacted products
2 products
| Vendor | Product | Version | |
|---|---|---|---|
| absinthe-graphql | absinthe |
Affected:
1.5.0 , < 1.10.2
(semver)
cpe:2.3:a:absinthe-graphql:absinthe:*:*:*:*:*:*:*:* |
|
| absinthe-graphql | absinthe |
Affected:
d0eae7764520d4e8e5dfff619068c0de911aec33 , < dd842b938e3823f345c10416914ffab5d5536838
(git)
cpe:2.3:a:absinthe-graphql:absinthe:*:*:*:*:*:*:*:* |
Credits
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CVE-2026-42794 (GCVE-0-2026-42794)
Vulnerability from cvelistv5 – Published: 2026-05-08 15:42 – Updated: 2026-05-16 10:21
VLAI
EPSS
VEX
Title
Reflected XSS via backslash bypass in GraphiQL js_escape in absinthe_plug
Summary
Improper Neutralization of Input During Web Page Generation (XSS) vulnerability in absinthe-graphql absinthe_plug allows reflected cross-site scripting via the GraphiQL interface.
'Elixir.Absinthe.Plug.GraphiQL':js_escape/1 in lib/absinthe/plug/graphiql.ex escapes single quotes and newlines in the query GET parameter before embedding it in an inline JavaScript string, but does not escape backslashes. An attacker can bypass the escaping by prefixing a quote with a backslash (e.g. \'), breaking out of the string context and executing arbitrary JavaScript in the victim's browser.
This issue affects absinthe_plug: from 1.2.0 before 1.5.10.
Severity
SSVC
Exploitation: poc
Automatable: no
Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
- CWE-79 - Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
Assigner
References
4 references
| URL | Tags |
|---|---|
| https://github.com/absinthe-graphql/absinthe_plug… | vendor-advisory |
| https://cna.erlef.org/cves/CVE-2026-42794.html | related |
| https://osv.dev/vulnerability/EEF-CVE-2026-42794 | related |
| https://github.com/absinthe-graphql/absinthe_plug… | patch |
Impacted products
2 products
| Vendor | Product | Version | |
|---|---|---|---|
| absinthe-graphql | absinthe_plug |
Affected:
1.2.0 , < 1.5.10
(semver)
cpe:2.3:a:absinthe-graphql:absinthe_plug:*:*:*:*:*:*:*:* |
|
| absinthe-graphql | absinthe_plug |
Affected:
26241817cb4b9be4de3f5972c5fba3d36de3d713 , < 23a0d5658d32420086711adf4ce8f05febb09963
(git)
cpe:2.3:a:absinthe-graphql:absinthe_plug:*:*:*:*:*:*:*:* |
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CVE-2026-43967 (GCVE-0-2026-43967)
Vulnerability from cvelistv5 – Published: 2026-05-08 15:42 – Updated: 2026-05-09 04:18
VLAI
EPSS
VEX
Title
Quadratic fragment-name uniqueness check causes denial of service in absinthe
Summary
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 supplied by the caller.
Because input.fragments is built directly from the GraphQL query body, N is fully attacker-controlled. A minimum-size fragment definition is roughly 16 bytes, so a ~1 MB document carries ~60,000 fragments and forces ~3.6 × 10⁹ comparisons inside this single validation phase. No authentication, schema knowledge, or special configuration is required.
This issue affects absinthe: from 1.2.0 before 1.10.2.
Severity
SSVC
Exploitation: none
Automatable: yes
Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
- CWE-407 - Inefficient Algorithmic Complexity
Assigner
References
4 references
| URL | Tags |
|---|---|
| https://github.com/absinthe-graphql/absinthe/secu… | vendor-advisoryrelated |
| https://cna.erlef.org/cves/CVE-2026-43967.html | related |
| https://osv.dev/vulnerability/EEF-CVE-2026-43967 | related |
| https://github.com/absinthe-graphql/absinthe/comm… | patch |
Impacted products
2 products
| Vendor | Product | Version | |
|---|---|---|---|
| absinthe-graphql | absinthe |
Affected:
1.2.0 , < 1.10.2
(semver)
cpe:2.3:a:absinthe-graphql:absinthe:*:*:*:*:*:*:*:* |
|
| absinthe-graphql | absinthe |
Affected:
0b46e3bcc06c0d3797bacd64761b908a84646c1d , < 223600c520493dcaf95080af552c413099f92c9d
(git)
cpe:2.3:a:absinthe-graphql:absinthe:*:*:*:*:*:*:*:* |
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"orgId": "6b3ad84c-e1a6-4bf7-a703-f496b71e49db",
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},
{
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"url": "https://cna.erlef.org/cves/CVE-2026-43967.html"
},
{
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"url": "https://osv.dev/vulnerability/EEF-CVE-2026-43967"
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"title": "Quadratic fragment-name uniqueness check causes denial of service in absinthe",
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"dateReserved": "2026-05-04T18:23:25.573Z",
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