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certfr-2026-avi-0667 — De multiples vulnérabilités ont été découvertes dans les produits IBM. Certaines d'entre elles permettent à un attaquan…

certfr-2026-avi-0667

EUVD-2026-267366

fkie_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.

GHSA-mp6q-xf9x-fwf7 — Apollo Serve vulnerable to Denial of Service with `startStandaloneServer`

Affected: npm: apollo-server, npm: @apollo/server

### Impact

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`.

### Who is impacted

Users directly using `startStandaloneServer` from `@apollo/server/standalone`.

This issue affects Apollo Server from v5.0.0 through v5.3.x.

It also affects all releases of the end-of-life major versions v4, v3, and v2. Although Apollo Server v4 is EOL and Apollo no longer commits to providing support or updates for it, a fix for it was released in v4.13.0. Apollo Server v3 and v2 are no longer updated, as they have been EOL since 2024 and 2023 respectively.

### Patches

Patches for this issue are released as `@apollo/server` versions `5.4.0` and `4.13.0`.

In accordance with [RFC 7159](https://datatracker.ietf.org/doc/html/rfc7159#section-8.1), these versions now only accept request bodies encoded in UTF-8, UTF-16 (LE or BE), or UTF-32 (LE or BE). Any other character set will be rejected with a `415 Unsupported Media Type` error. Note that the more recent JSON RFC, [RFC 8259 (https://datatracker.ietf.org/doc/html/rfc8259#section-8.1), is more strict and will only allow UTF-8. Since this is a minor release, we have chosen t…

WID-SEC-W-2026-3046 — IBM Concert: Mehrere Schwachstellen

Ein Angreifer kann mehrere Schwachstellen in IBM Concert ausnutzen, um beliebigen Programmcode auszuführen, um einen Denial of Service Angriff durchzuführen, um Informationen offenzulegen, um Dateien zu manipulieren, um einen Cross-Site Scripting Angriff durchzuführen, um einen SQL-Injection Angriff durchzuführen und um Sicherheitsvorkehrungen zu umgehen.