1.5.1

Release Notes for 1.5.1

Apache Pinot 1.5.1 is a security patch release based on 1.5.0. It contains only dependency updates and dependency-exclusion changes to resolve reported CVEs — no functional, API, configuration, or wire-format changes. A vulnerability scan of the 1.5.1 binary distribution reports 0 critical and 0 high findings.

Upgrade notes

Drop-in security update for 1.5.0 — no behavioral changes. Upgrade by replacing the 1.5.0 binary or Docker image with the 1.5.1 equivalent.

Security fixes

Dependency	1.5.0 → 1.5.1	CVEs addressed
Netty (netty-bom)	4.1.122.Final → 4.1.134.Final	CVE-2025-55163, CVE-2025-59419, CVE-2026-33870, CVE-2026-33871, CVE-2026-42579, CVE-2026-42583, CVE-2026-42584, CVE-2026-42587
Apache Log4j Core	2.25.3 → 2.26.0	CVE-2026-34478, CVE-2026-34479, CVE-2026-34480, CVE-2026-34481
async-http-client	3.0.7 → 3.0.10	CVE-2026-45300
Apache HttpClient 5	5.6 → 5.6.1	CVE-2026-40542
Apache Pulsar (bundles BouncyCastle)	4.0.9 → 4.0.10 (bcprov/bcpkix/bcutil → 1.84)	CVE-2026-5598, CVE-2026-0636, CVE-2026-5588
commons-configuration2	2.13.0 → 2.15.0	CVE-2026-45205

CVE-2026-2332 (Jetty request smuggling)

The only Jetty in Pinot's distribution was Hadoop's embedded HttpServer2, which Pinot never starts. As of 1.5.1 it is excluded from the Hadoop dependencies and stripped from the shaded jars (#18659), so Jetty no longer ships in the distribution at all. Jetty 9.4.x itself is end-of-life with no available patch; removing the unused artifact is the resolution.

Full changelog

release-1.5.0...release-1.5.1