DEBIAN-CVE-2026-75508

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Source
https://security-tracker.debian.org/tracker/CVE-2026-75508
Import Source
https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-75508.json
JSON Data
https://api.osv.dev/v1/vulns/DEBIAN-CVE-2026-75508
Upstream
Published
2026-10-22T17:16:59Z
Modified
2026-10-23T18:05:44Z
Severity
  • 7.5 (High) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H CVSS Calculator
Summary
[none]
Details

GraphQL-core is a Python port of the GraphQL.js reference implementation. From 3.2.3 until 3.2.12 and 3.3.0rc1, the parser's max_tokens limit in Parser.advance_lexer counts only non-comment tokens returned after Lexer.lookahead skips comments. Each skipped comment is still allocated as a Token and retained through token.next and token.prev, allowing a highly compressible comment-padded GraphQL document to pass a low token limit while consuming memory. An unauthenticated remote attacker can exhaust worker memory before AST-based depth or complexity controls run. This issue is fixed in versions 3.2.12 and 3.3.0rc1.

References

Affected packages

Debian:12 / graphql-core

Package

Name
graphql-core
Purl
pkg:deb/debian/graphql-core?arch=source&distro=bookworm

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0 Unknown introduced version / All previous versions are affected

Affected versions

2.*
2.3.2-1
3.*
3.1.7-1
3.2.0-1
3.2.1-1
3.2.3-1
3.2.3-2
3.2.4-1
3.2.5-1
3.2.6-1
3.2.6-2
3.2.7-1
3.2.8-1
3.2.11-1
3.2.12-1

Ecosystem specific 

{
    "urgency":  "not yet assigned"
}

Database specific

source 
"https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-75508.json"

Debian:13 / graphql-core

Package

Name
graphql-core
Purl
pkg:deb/debian/graphql-core?arch=source&distro=trixie

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0 Unknown introduced version / All previous versions are affected

Affected versions

3.*
3.2.6-1
3.2.6-2
3.2.7-1
3.2.8-1
3.2.11-1
3.2.12-1

Ecosystem specific 

{
    "urgency":  "not yet assigned"
}

Database specific

source 
"https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-75508.json"

Debian:14 / graphql-core

Package

Name
graphql-core
Purl
pkg:deb/debian/graphql-core?arch=source&distro=forky

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0 Unknown introduced version / All previous versions are affected
Fixed
3.2.12-1

Affected versions

3.*
3.2.6-1
3.2.6-2
3.2.7-1
3.2.8-1
3.2.11-1

Ecosystem specific 

{
    "urgency":  "not yet assigned"
}

Database specific

source 
"https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-75508.json"