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Advisory record · GHSA-rhrv-645h-fjfh

Apache Avro Java SDK vulnerable to Improper Input Validation

CVSS 7.5 HighEPSS 0.022 · 82nd percentile

Published by the GitHub Advisory Database at 29 Sept 2023, 18:30 UTC. agentprime has not analysed this yet, so whether it affects any app is not known.

PackageEcosystemAffectedFixed in
org.apache.avro:avroMaven<1.11.31.11.3
Identifiers
GHSA-rhrv-645h-fjfh · CVE-2023-39410 · PYSEC-2023-188
Weakness (CWE)
CWE-20 · CWE-502
Tags
Published
29 Sept 2023
Updated
10 Sept 2026

Machine-written summary

Summary written by Claude Haiku from the source advisory. Not reviewed by a person.

Apache Avro Java SDK (org.apache.avro:avro) versions before 1.11.3 are vulnerable to improper input validation. An attacker who can supply untrusted or corrupted data for deserialization can cause a reader to consume memory beyond intended limits, leading to an out-of-memory condition. Upgrade to version 1.11.3 or later.

Written 2 Nov 2026.

Not analysed yet

We haven’t published our analysis of this Advisory yet. Once a person has reviewed it, this page will say what’s vulnerable, what has to be true for your app to be affected, and how to check.

Severity and exploitation

ScoreRatingCVSSVectorSource
7.5 High 3.1 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H GitHub Advisory Database
  • CISA KEV Not listed.
  • EPSS 0.022, the 82nd percentile, on 14 Nov 2026: FIRST’s estimate of the chance of exploitation in the next 30 days.

Timeline

  1. 31 Oct 2026, 14:18 UTC First seen by agentprime
  2. 31 Oct 2026, 14:18 UTC Confirmed by OSV

Sources

Facts on this page come from the GitHub Advisory Database (CC-BY 4.0), OSV and the other sources listed, as published. We don’t reproduce full advisory descriptions, which can contain exploit code.