CVEDB API

Vulnerabilities

Vulnerable Software

Vulnerability Details CVE-2026-23897

Apollo Server is an open-source, spec-compliant GraphQL server that's compatible with any GraphQL client, including Apollo Client. In versions from 2.0.0 to 3.13.0, 4.2.0 to before 4.13.0, and 5.0.0 to before 5.4.0, the default configuration of startStandaloneServer from @apollo/server/standalone is vulnerable to denial of service (DoS) attacks through specially crafted request bodies with exotic character set encodings. This issue does not affect users that use @apollo/server as a dependency for integration packages, like @as-integrations/express5 or @as-integrations/next, only direct usage of startStandaloneServer.

Exploit prediction scoring system (EPSS) score

EPSS Score 0.0

EPSS Ranking 6.1%

CVSS Severity

CVSS v3 Score 7.5

References

Products affected by CVE-2026-23897

Apollographql » Apollo Server » Version: 2.0.0

cpe:2.3:a:apollographql:apollo_server:2.0.0
Apollographql » Apollo Server » Version: 2.0.1

cpe:2.3:a:apollographql:apollo_server:2.0.1
Apollographql » Apollo Server » Version: 2.0.2

cpe:2.3:a:apollographql:apollo_server:2.0.2
Apollographql » Apollo Server » Version: 2.0.3

cpe:2.3:a:apollographql:apollo_server:2.0.3
Apollographql » Apollo Server » Version: 2.0.4

cpe:2.3:a:apollographql:apollo_server:2.0.4
Apollographql » Apollo Server » Version: 2.0.5

cpe:2.3:a:apollographql:apollo_server:2.0.5
Apollographql » Apollo Server » Version: 2.0.6

cpe:2.3:a:apollographql:apollo_server:2.0.6
Apollographql » Apollo Server » Version: 2.0.7

cpe:2.3:a:apollographql:apollo_server:2.0.7
Apollographql » Apollo Server » Version: 2.0.8

cpe:2.3:a:apollographql:apollo_server:2.0.8
Apollographql » Apollo Server » Version: 2.1.0

cpe:2.3:a:apollographql:apollo_server:2.1.0
Apollographql » Apollo Server » Version: 2.10.0

cpe:2.3:a:apollographql:apollo_server:2.10.0
Apollographql » Apollo Server » Version: 2.10.1

cpe:2.3:a:apollographql:apollo_server:2.10.1
Apollographql » Apollo Server » Version: 2.11.0

cpe:2.3:a:apollographql:apollo_server:2.11.0
Apollographql » Apollo Server » Version: 2.12.0

cpe:2.3:a:apollographql:apollo_server:2.12.0
Apollographql » Apollo Server » Version: 2.13.0

cpe:2.3:a:apollographql:apollo_server:2.13.0
Apollographql » Apollo Server » Version: 2.13.1

cpe:2.3:a:apollographql:apollo_server:2.13.1
Apollographql » Apollo Server » Version: 2.14.0

cpe:2.3:a:apollographql:apollo_server:2.14.0
Apollographql » Apollo Server » Version: 2.14.1

cpe:2.3:a:apollographql:apollo_server:2.14.1
Apollographql » Apollo Server » Version: 2.14.2

cpe:2.3:a:apollographql:apollo_server:2.14.2
Apollographql » Apollo Server » Version: 2.14.3

cpe:2.3:a:apollographql:apollo_server:2.14.3
Apollographql » Apollo Server » Version: 2.14.4

cpe:2.3:a:apollographql:apollo_server:2.14.4
Apollographql » Apollo Server » Version: 2.14.5

cpe:2.3:a:apollographql:apollo_server:2.14.5
Apollographql » Apollo Server » Version: 2.15.0

cpe:2.3:a:apollographql:apollo_server:2.15.0
Apollographql » Apollo Server » Version: 2.15.1

cpe:2.3:a:apollographql:apollo_server:2.15.1
Apollographql » Apollo Server » Version: 2.16.0

cpe:2.3:a:apollographql:apollo_server:2.16.0
Apollographql » Apollo Server » Version: 2.16.1

cpe:2.3:a:apollographql:apollo_server:2.16.1
Apollographql » Apollo Server » Version: 2.17.0

cpe:2.3:a:apollographql:apollo_server:2.17.0
Apollographql » Apollo Server » Version: 2.17.1

cpe:2.3:a:apollographql:apollo_server:2.17.1
Apollographql » Apollo Server » Version: 2.18.0

cpe:2.3:a:apollographql:apollo_server:2.18.0
Apollographql » Apollo Server » Version: 2.18.1

cpe:2.3:a:apollographql:apollo_server:2.18.1
Apollographql » Apollo Server » Version: 2.18.2

cpe:2.3:a:apollographql:apollo_server:2.18.2
Apollographql » Apollo Server » Version: 2.19.0

cpe:2.3:a:apollographql:apollo_server:2.19.0
Apollographql » Apollo Server » Version: 2.19.1

cpe:2.3:a:apollographql:apollo_server:2.19.1
Apollographql » Apollo Server » Version: 2.19.2

cpe:2.3:a:apollographql:apollo_server:2.19.2
Apollographql » Apollo Server » Version: 2.2.0

cpe:2.3:a:apollographql:apollo_server:2.2.0
Apollographql » Apollo Server » Version: 2.2.1

cpe:2.3:a:apollographql:apollo_server:2.2.1
Apollographql » Apollo Server » Version: 2.2.2

cpe:2.3:a:apollographql:apollo_server:2.2.2
Apollographql » Apollo Server » Version: 2.2.3

cpe:2.3:a:apollographql:apollo_server:2.2.3
Apollographql » Apollo Server » Version: 2.2.4

cpe:2.3:a:apollographql:apollo_server:2.2.4
Apollographql » Apollo Server » Version: 2.2.5

cpe:2.3:a:apollographql:apollo_server:2.2.5
Apollographql » Apollo Server » Version: 2.2.6

cpe:2.3:a:apollographql:apollo_server:2.2.6
Apollographql » Apollo Server » Version: 2.2.7

cpe:2.3:a:apollographql:apollo_server:2.2.7
Apollographql » Apollo Server » Version: 2.20.0

cpe:2.3:a:apollographql:apollo_server:2.20.0
Apollographql » Apollo Server » Version: 2.21.0

cpe:2.3:a:apollographql:apollo_server:2.21.0
Apollographql » Apollo Server » Version: 2.21.1

cpe:2.3:a:apollographql:apollo_server:2.21.1
Apollographql » Apollo Server » Version: 2.21.2

cpe:2.3:a:apollographql:apollo_server:2.21.2
Apollographql » Apollo Server » Version: 2.22.0

cpe:2.3:a:apollographql:apollo_server:2.22.0
Apollographql » Apollo Server » Version: 2.22.1

cpe:2.3:a:apollographql:apollo_server:2.22.1
Apollographql » Apollo Server » Version: 2.22.2

cpe:2.3:a:apollographql:apollo_server:2.22.2
Apollographql » Apollo Server » Version: 2.23.0

cpe:2.3:a:apollographql:apollo_server:2.23.0
Apollographql » Apollo Server » Version: 2.24.0

cpe:2.3:a:apollographql:apollo_server:2.24.0
Apollographql » Apollo Server » Version: 2.24.1

cpe:2.3:a:apollographql:apollo_server:2.24.1
Apollographql » Apollo Server » Version: 2.25.0

cpe:2.3:a:apollographql:apollo_server:2.25.0
Apollographql » Apollo Server » Version: 2.25.1

cpe:2.3:a:apollographql:apollo_server:2.25.1
Apollographql » Apollo Server » Version: 2.25.2

cpe:2.3:a:apollographql:apollo_server:2.25.2
Apollographql » Apollo Server » Version: 2.25.3

cpe:2.3:a:apollographql:apollo_server:2.25.3
Apollographql » Apollo Server » Version: 2.25.4

cpe:2.3:a:apollographql:apollo_server:2.25.4
Apollographql » Apollo Server » Version: 2.26.0

cpe:2.3:a:apollographql:apollo_server:2.26.0
Apollographql » Apollo Server » Version: 2.26.1

cpe:2.3:a:apollographql:apollo_server:2.26.1
Apollographql » Apollo Server » Version: 2.26.2

cpe:2.3:a:apollographql:apollo_server:2.26.2
Apollographql » Apollo Server » Version: 2.3.0

cpe:2.3:a:apollographql:apollo_server:2.3.0
Apollographql » Apollo Server » Version: 2.3.1

cpe:2.3:a:apollographql:apollo_server:2.3.1
Apollographql » Apollo Server » Version: 2.3.2

cpe:2.3:a:apollographql:apollo_server:2.3.2
Apollographql » Apollo Server » Version: 2.3.3

cpe:2.3:a:apollographql:apollo_server:2.3.3
Apollographql » Apollo Server » Version: 2.4.0

cpe:2.3:a:apollographql:apollo_server:2.4.0
Apollographql » Apollo Server » Version: 2.4.1

cpe:2.3:a:apollographql:apollo_server:2.4.1
Apollographql » Apollo Server » Version: 2.4.2

cpe:2.3:a:apollographql:apollo_server:2.4.2
Apollographql » Apollo Server » Version: 2.4.3

cpe:2.3:a:apollographql:apollo_server:2.4.3
Apollographql » Apollo Server » Version: 2.4.4

cpe:2.3:a:apollographql:apollo_server:2.4.4
Apollographql » Apollo Server » Version: 2.4.5

cpe:2.3:a:apollographql:apollo_server:2.4.5
Apollographql » Apollo Server » Version: 2.4.6

cpe:2.3:a:apollographql:apollo_server:2.4.6
Apollographql » Apollo Server » Version: 2.4.7

cpe:2.3:a:apollographql:apollo_server:2.4.7
Apollographql » Apollo Server » Version: 2.4.8

cpe:2.3:a:apollographql:apollo_server:2.4.8
Apollographql » Apollo Server » Version: 2.5.0

cpe:2.3:a:apollographql:apollo_server:2.5.0
Apollographql » Apollo Server » Version: 2.5.1

cpe:2.3:a:apollographql:apollo_server:2.5.1
Apollographql » Apollo Server » Version: 2.6.0

cpe:2.3:a:apollographql:apollo_server:2.6.0
Apollographql » Apollo Server » Version: 2.6.1

cpe:2.3:a:apollographql:apollo_server:2.6.1
Apollographql » Apollo Server » Version: 2.6.2

cpe:2.3:a:apollographql:apollo_server:2.6.2
Apollographql » Apollo Server » Version: 2.6.3

cpe:2.3:a:apollographql:apollo_server:2.6.3
Apollographql » Apollo Server » Version: 2.6.4

cpe:2.3:a:apollographql:apollo_server:2.6.4
Apollographql » Apollo Server » Version: 2.6.5

cpe:2.3:a:apollographql:apollo_server:2.6.5
Apollographql » Apollo Server » Version: 2.6.6

cpe:2.3:a:apollographql:apollo_server:2.6.6
Apollographql » Apollo Server » Version: 2.6.7

cpe:2.3:a:apollographql:apollo_server:2.6.7
Apollographql » Apollo Server » Version: 2.6.8

cpe:2.3:a:apollographql:apollo_server:2.6.8
Apollographql » Apollo Server » Version: 2.6.9

cpe:2.3:a:apollographql:apollo_server:2.6.9
Apollographql » Apollo Server » Version: 2.7.0

cpe:2.3:a:apollographql:apollo_server:2.7.0
Apollographql » Apollo Server » Version: 2.7.1

cpe:2.3:a:apollographql:apollo_server:2.7.1
Apollographql » Apollo Server » Version: 2.7.2

cpe:2.3:a:apollographql:apollo_server:2.7.2
Apollographql » Apollo Server » Version: 2.8.0

cpe:2.3:a:apollographql:apollo_server:2.8.0
Apollographql » Apollo Server » Version: 2.8.1

cpe:2.3:a:apollographql:apollo_server:2.8.1
Apollographql » Apollo Server » Version: 2.8.2

cpe:2.3:a:apollographql:apollo_server:2.8.2
Apollographql » Apollo Server » Version: 2.9.0

cpe:2.3:a:apollographql:apollo_server:2.9.0
Apollographql » Apollo Server » Version: 2.9.1

cpe:2.3:a:apollographql:apollo_server:2.9.1
Apollographql » Apollo Server » Version: 2.9.10

cpe:2.3:a:apollographql:apollo_server:2.9.10
Apollographql » Apollo Server » Version: 2.9.11

cpe:2.3:a:apollographql:apollo_server:2.9.11
Apollographql » Apollo Server » Version: 2.9.12

cpe:2.3:a:apollographql:apollo_server:2.9.12
Apollographql » Apollo Server » Version: 2.9.13

cpe:2.3:a:apollographql:apollo_server:2.9.13
Apollographql » Apollo Server » Version: 2.9.14

cpe:2.3:a:apollographql:apollo_server:2.9.14
Apollographql » Apollo Server » Version: 2.9.15

cpe:2.3:a:apollographql:apollo_server:2.9.15
Apollographql » Apollo Server » Version: 2.9.16

cpe:2.3:a:apollographql:apollo_server:2.9.16
Apollographql » Apollo Server » Version: 2.9.2

cpe:2.3:a:apollographql:apollo_server:2.9.2
Apollographql » Apollo Server » Version: 2.9.3

cpe:2.3:a:apollographql:apollo_server:2.9.3
Apollographql » Apollo Server » Version: 2.9.4

cpe:2.3:a:apollographql:apollo_server:2.9.4
Apollographql » Apollo Server » Version: 2.9.5

cpe:2.3:a:apollographql:apollo_server:2.9.5
Apollographql » Apollo Server » Version: 2.9.6

cpe:2.3:a:apollographql:apollo_server:2.9.6
Apollographql » Apollo Server » Version: 2.9.7

cpe:2.3:a:apollographql:apollo_server:2.9.7
Apollographql » Apollo Server » Version: 2.9.8

cpe:2.3:a:apollographql:apollo_server:2.9.8
Apollographql » Apollo Server » Version: 2.9.9

cpe:2.3:a:apollographql:apollo_server:2.9.9
Apollographql » Apollo Server » Version: 3.0.0

cpe:2.3:a:apollographql:apollo_server:3.0.0
Apollographql » Apollo Server » Version: 3.0.1

cpe:2.3:a:apollographql:apollo_server:3.0.1
Apollographql » Apollo Server » Version: 3.0.2

cpe:2.3:a:apollographql:apollo_server:3.0.2
Apollographql » Apollo Server » Version: 3.1.0

cpe:2.3:a:apollographql:apollo_server:3.1.0
Apollographql » Apollo Server » Version: 3.1.1

cpe:2.3:a:apollographql:apollo_server:3.1.1
Apollographql » Apollo Server » Version: 3.1.2

cpe:2.3:a:apollographql:apollo_server:3.1.2
Apollographql » Apollo Server » Version: 3.10.0

cpe:2.3:a:apollographql:apollo_server:3.10.0
Apollographql » Apollo Server » Version: 3.10.1

cpe:2.3:a:apollographql:apollo_server:3.10.1
Apollographql » Apollo Server » Version: 3.10.2

cpe:2.3:a:apollographql:apollo_server:3.10.2
Apollographql » Apollo Server » Version: 3.10.3

cpe:2.3:a:apollographql:apollo_server:3.10.3
Apollographql » Apollo Server » Version: 3.10.4

cpe:2.3:a:apollographql:apollo_server:3.10.4
Apollographql » Apollo Server » Version: 3.11.0

cpe:2.3:a:apollographql:apollo_server:3.11.0
Apollographql » Apollo Server » Version: 3.11.1

cpe:2.3:a:apollographql:apollo_server:3.11.1
Apollographql » Apollo Server » Version: 3.12.0

cpe:2.3:a:apollographql:apollo_server:3.12.0
Apollographql » Apollo Server » Version: 3.12.1

cpe:2.3:a:apollographql:apollo_server:3.12.1
Apollographql » Apollo Server » Version: 3.13.0

cpe:2.3:a:apollographql:apollo_server:3.13.0
Apollographql » Apollo Server » Version: 3.2.0

cpe:2.3:a:apollographql:apollo_server:3.2.0
Apollographql » Apollo Server » Version: 3.3.0

cpe:2.3:a:apollographql:apollo_server:3.3.0
Apollographql » Apollo Server » Version: 3.4.0

cpe:2.3:a:apollographql:apollo_server:3.4.0
Apollographql » Apollo Server » Version: 3.4.1

cpe:2.3:a:apollographql:apollo_server:3.4.1
Apollographql » Apollo Server » Version: 3.5.0

cpe:2.3:a:apollographql:apollo_server:3.5.0
Apollographql » Apollo Server » Version: 3.6.0

cpe:2.3:a:apollographql:apollo_server:3.6.0
Apollographql » Apollo Server » Version: 3.6.1

cpe:2.3:a:apollographql:apollo_server:3.6.1
Apollographql » Apollo Server » Version: 3.6.2

cpe:2.3:a:apollographql:apollo_server:3.6.2
Apollographql » Apollo Server » Version: 3.6.3

cpe:2.3:a:apollographql:apollo_server:3.6.3
Apollographql » Apollo Server » Version: 3.6.4

cpe:2.3:a:apollographql:apollo_server:3.6.4
Apollographql » Apollo Server » Version: 3.6.5

cpe:2.3:a:apollographql:apollo_server:3.6.5
Apollographql » Apollo Server » Version: 3.6.6

cpe:2.3:a:apollographql:apollo_server:3.6.6
Apollographql » Apollo Server » Version: 3.6.7

cpe:2.3:a:apollographql:apollo_server:3.6.7
Apollographql » Apollo Server » Version: 3.6.8

cpe:2.3:a:apollographql:apollo_server:3.6.8
Apollographql » Apollo Server » Version: 3.7.0

cpe:2.3:a:apollographql:apollo_server:3.7.0
Apollographql » Apollo Server » Version: 3.8.0

cpe:2.3:a:apollographql:apollo_server:3.8.0
Apollographql » Apollo Server » Version: 3.8.1

cpe:2.3:a:apollographql:apollo_server:3.8.1
Apollographql » Apollo Server » Version: 3.8.2

cpe:2.3:a:apollographql:apollo_server:3.8.2
Apollographql » Apollo Server » Version: 3.9.0

cpe:2.3:a:apollographql:apollo_server:3.9.0
Apollographql » Apollo Server » Version: 4.10.0

cpe:2.3:a:apollographql:apollo_server:4.10.0
Apollographql » Apollo Server » Version: 4.10.1

cpe:2.3:a:apollographql:apollo_server:4.10.1
Apollographql » Apollo Server » Version: 4.10.2

cpe:2.3:a:apollographql:apollo_server:4.10.2
Apollographql » Apollo Server » Version: 4.10.3

cpe:2.3:a:apollographql:apollo_server:4.10.3
Apollographql » Apollo Server » Version: 4.10.4

cpe:2.3:a:apollographql:apollo_server:4.10.4
Apollographql » Apollo Server » Version: 4.10.5

cpe:2.3:a:apollographql:apollo_server:4.10.5
Apollographql » Apollo Server » Version: 4.11.0

cpe:2.3:a:apollographql:apollo_server:4.11.0
Apollographql » Apollo Server » Version: 4.11.1

cpe:2.3:a:apollographql:apollo_server:4.11.1
Apollographql » Apollo Server » Version: 4.11.2

cpe:2.3:a:apollographql:apollo_server:4.11.2
Apollographql » Apollo Server » Version: 4.11.3

cpe:2.3:a:apollographql:apollo_server:4.11.3
Apollographql » Apollo Server » Version: 4.12.0

cpe:2.3:a:apollographql:apollo_server:4.12.0
Apollographql » Apollo Server » Version: 4.12.1

cpe:2.3:a:apollographql:apollo_server:4.12.1
Apollographql » Apollo Server » Version: 4.12.2

cpe:2.3:a:apollographql:apollo_server:4.12.2
Apollographql » Apollo Server » Version: 4.2.0

cpe:2.3:a:apollographql:apollo_server:4.2.0
Apollographql » Apollo Server » Version: 4.2.1

cpe:2.3:a:apollographql:apollo_server:4.2.1
Apollographql » Apollo Server » Version: 4.2.2

cpe:2.3:a:apollographql:apollo_server:4.2.2
Apollographql » Apollo Server » Version: 4.3.0

cpe:2.3:a:apollographql:apollo_server:4.3.0
Apollographql » Apollo Server » Version: 4.3.1

cpe:2.3:a:apollographql:apollo_server:4.3.1
Apollographql » Apollo Server » Version: 4.3.2

cpe:2.3:a:apollographql:apollo_server:4.3.2
Apollographql » Apollo Server » Version: 4.3.3

cpe:2.3:a:apollographql:apollo_server:4.3.3
Apollographql » Apollo Server » Version: 4.4.0

cpe:2.3:a:apollographql:apollo_server:4.4.0
Apollographql » Apollo Server » Version: 4.4.1

cpe:2.3:a:apollographql:apollo_server:4.4.1
Apollographql » Apollo Server » Version: 4.5.0

cpe:2.3:a:apollographql:apollo_server:4.5.0
Apollographql » Apollo Server » Version: 4.6.0

cpe:2.3:a:apollographql:apollo_server:4.6.0
Apollographql » Apollo Server » Version: 4.7.0

cpe:2.3:a:apollographql:apollo_server:4.7.0
Apollographql » Apollo Server » Version: 4.7.1

cpe:2.3:a:apollographql:apollo_server:4.7.1
Apollographql » Apollo Server » Version: 4.7.2

cpe:2.3:a:apollographql:apollo_server:4.7.2
Apollographql » Apollo Server » Version: 4.7.3

cpe:2.3:a:apollographql:apollo_server:4.7.3
Apollographql » Apollo Server » Version: 4.7.4

cpe:2.3:a:apollographql:apollo_server:4.7.4
Apollographql » Apollo Server » Version: 4.7.5

cpe:2.3:a:apollographql:apollo_server:4.7.5
Apollographql » Apollo Server » Version: 4.8.0

cpe:2.3:a:apollographql:apollo_server:4.8.0
Apollographql » Apollo Server » Version: 4.8.1

cpe:2.3:a:apollographql:apollo_server:4.8.1
Apollographql » Apollo Server » Version: 4.9.0

cpe:2.3:a:apollographql:apollo_server:4.9.0
Apollographql » Apollo Server » Version: 4.9.1

cpe:2.3:a:apollographql:apollo_server:4.9.1
Apollographql » Apollo Server » Version: 4.9.2

cpe:2.3:a:apollographql:apollo_server:4.9.2
Apollographql » Apollo Server » Version: 4.9.3

cpe:2.3:a:apollographql:apollo_server:4.9.3
Apollographql » Apollo Server » Version: 4.9.4

cpe:2.3:a:apollographql:apollo_server:4.9.4
Apollographql » Apollo Server » Version: 4.9.5

cpe:2.3:a:apollographql:apollo_server:4.9.5
Apollographql » Apollo Server » Version: 5.0.0

cpe:2.3:a:apollographql:apollo_server:5.0.0
Apollographql » Apollo Server » Version: 5.1.0

cpe:2.3:a:apollographql:apollo_server:5.1.0
Apollographql » Apollo Server » Version: 5.2.0

cpe:2.3:a:apollographql:apollo_server:5.2.0
Apollographql » Apollo Server » Version: 5.3.0

cpe:2.3:a:apollographql:apollo_server:5.3.0

Vulnerabilities

Vulnerable Software

Vulnerability Details CVE-2026-23897

Products

Pricing

Contact Us