🛡️ CVE-2026-35554 on Maven (Root.io) — kafka-clients

Distribution advisory

This page covers CVE-2026-35554 as tracked by Maven (Root.io), for the package kafka-clients. The fix is available in version 3.8.1-root.io.4; earlier versions remain affected.

How this vulnerability can be exploited

This issue can be reached over the network, attack complexity is high, an attacker needs no privileges on the target. No user interaction is required. The scope is changed, meaning a successful attack can affect components beyond the vulnerable one. Rated impact: confidentiality high, integrity high, availability none.

CVSS metrics in full

The score comes from this vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:H/I:H/A:N

• Attack vector: Network — reachable from anywhere that can route to the service.
• Attack complexity: High — the attacker first has to win a race, learn a secret or otherwise prepare the target.
• Privileges required: None — an unauthenticated stranger can try it.
• User interaction: None — nobody has to be tricked into anything.
• Scope: Changed — a successful attack reaches components beyond the vulnerable one.
• Confidentiality impact: High — total loss, or loss the attacker controls.
• Integrity impact: High — total loss, or loss the attacker controls.
• Availability impact: None.

Weakness class

ROOT-APP-MAVEN-CVE-2026-35554 is classified as CWE-362: Race Condition. Concurrent operations share state without proper synchronisation, so timing decides whether the result is correct.

Affected software

ROOT-APP-MAVEN-CVE-2026-35554 is recorded against 2 packages.

• io.root.org.apache.kafka:kafka-clients (fixed in 3.8.1-root.io.4)
• org.apache.kafka:kafka-clients (fixed in 3.8.1-aikido.4)

Timeline and source

Published on 30 June 2026. No public exploit is currently recorded for this entry. Record sourced from OSV.

Other advisories for this package

io.root.org.apache.kafka:kafka-clients has other advisories on record. If you are patching this one, these are worth checking on the same host:

• ROOT-APP-MAVEN-CVE-2025-27817 (5.0 Medium, published 30 Jun 2026)
• ROOT-APP-MAVEN-CVE-2026-33558 (5.0 Medium, published 30 Jun 2026)
• ROOT-APP-MAVEN-CVE-2024-31141 (5.0 Medium, published 24 Jun 2026)

Same weakness in other software

These advisories are the same class of weakness (CWE-362: Race Condition) in other software:

• CVE-2025-15630 (5.9 Medium, published 3 Aug 2026)
• CVE-2025-64168 (8.0 High, published 7 Jul 2026)
• CVE-2025-68146 (6.3 Medium, published 7 Jul 2026)
• CVE-2026-0083 (7.0 High, published 17 Jun 2026)
• CVE-2026-0068 (7.8 High, published 17 Jun 2026)
• CVE-2025-13036 (published 16 Jun 2026)
• CVE-2025-15546 (5.4 Medium, published 14 Jun 2026)
• CVE-2022-26758 (7.1 High, published 10 Jun 2026)

CVE-2026-35554 on other distributions

Each distribution ships its own build and its own fixed version. Pick the one you run:

Details

Affected Packages

References