`CVE-2023-39410` Apache Avro

Affected software	Apache Avro
Severity	7.5 High CVSS 3.1
Fixed in	`1.11.3`
Weakness	Deserialization of untrusted data (CWE-502)
Published	29 Sep 2023
Updated	17 Jun 2026

Description

When deserializing untrusted or corrupted data, it is possible for a reader to consume memory beyond the allowed constraints and thus lead to out of memory on the system. This issue affects Java applications using Apache Avro Java SDK up to and including 1.11.2. Users should update to apache-avro version 1.11.3 which addresses this issue.

CWE-20 · Improper input validation

Exploitation status

No public exploit

No exploit has been reported in the sources we check. Published 3 years ago.

CISA KEV not listed
VulnCheck KEV not listed
CISA Vulnrichment exploitation: none
Indexed PoC none indexed
EPSS 2.2% chance in 30 days

Waratek protection

Protected by Waratek

Waratek has a rule that blocks attacks on this vulnerability.

Protection full
Action available security rule
Review human Researcher
Record active

Decided by	Manual classification of this CVE in the legacy dataset
Finding	A manual classification set this CVE's status to Protected by Waratek.

Decided by

Manual classification of this CVE in the legacy dataset

Finding

A manual classification set this CVE's status to Protected by Waratek.

How to mitigate CVE-2023-39410

Upgrade Apache Avro to 1.11.3 or later. Until you can, Waratek RASP blocks exploitation with a security rule that blocks this kind of attack. It runs inside the Java application, with no code changes.

Waratek RASP Runtime protection for Java applications

Affected software and releases

Oracle advisories

Advisory	Type	Quarter	Products Oracle names in its risk matrix
Oracle Critical Patch Update July 2026 ↗	CPU	2026-Q3	Oracle Communications / Core (WebAssembly Micro Runtime) (6.1.1-7.0.0)
Oracle Critical Patch Update April 2025 ↗	CPU	2025-Q2	Oracle Financial Services Applications / IDM Authentication (Apache Avro) (21.1.0.0.0, 22.1.0.0.0, 22.2.0.0.0)
Oracle Critical Patch Update January 2025 ↗	CPU	2025-Q1	Oracle Financial Services Applications / Base (Apache Avro) (14.4.0.0.0-14.7.0.0.0) Oracle Financial Services Applications / Installer (Apache Avro) (8.1.2.6, 8.1.2.7, 8.1.3.0) Oracle Financial Services Applications / Maintenance (Apache Avro) (14.5.0.0.0-14.7.0.0.0)
Oracle Critical Patch Update October 2024 ↗	CPU	2024-Q4	Oracle GoldenGate / Application Adapters (Apache Avro Java) (19.1.0.0.0-19.1.0.0.9) Oracle GoldenGate / Spark (Apache Avro Java) (19.1.0.0.0-19.1.0.0.9)
Oracle Critical Patch Update January 2024 ↗	CPU	2024-Q1	Oracle Analytics / Analytics Server (Apache Avro) (6.4.0.0.0, 7.0.0.0.0) Oracle Fusion Middleware / BPM Composer (Apache Avro) (12.2.1.4.0) Oracle Fusion Middleware / Third Party (Apache Avro) (12.2.1.4.0)

Advisory

Type

Quarter

Products Oracle names in its risk matrix

Oracle Critical Patch Update July 2026 ↗

CPU

2026-Q3

Oracle Communications / Core (WebAssembly Micro Runtime) (6.1.1-7.0.0)

Oracle Critical Patch Update April 2025 ↗

CPU

2025-Q2

Oracle Financial Services Applications / IDM Authentication (Apache Avro) (21.1.0.0.0, 22.1.0.0.0, 22.2.0.0.0)

Oracle Critical Patch Update January 2025 ↗

CPU

2025-Q1

Oracle Financial Services Applications / Base (Apache Avro) (14.4.0.0.0-14.7.0.0.0)
Oracle Financial Services Applications / Installer (Apache Avro) (8.1.2.6, 8.1.2.7, 8.1.3.0)
Oracle Financial Services Applications / Maintenance (Apache Avro) (14.5.0.0.0-14.7.0.0.0)

Oracle Critical Patch Update October 2024 ↗

CPU

2024-Q4

Oracle GoldenGate / Application Adapters (Apache Avro Java) (19.1.0.0.0-19.1.0.0.9)
Oracle GoldenGate / Spark (Apache Avro Java) (19.1.0.0.0-19.1.0.0.9)

Oracle Critical Patch Update January 2024 ↗

CPU

2024-Q1

Oracle Analytics / Analytics Server (Apache Avro) (6.4.0.0.0, 7.0.0.0.0)
Oracle Fusion Middleware / BPM Composer (Apache Avro) (12.2.1.4.0)
Oracle Fusion Middleware / Third Party (Apache Avro) (12.2.1.4.0)

Oracle components and versions

Family	Component	Versions, as Oracle lists them	Read as
Oracle Analytics	Analytics Server (Apache Avro)	6.4.0.0.0, 7.0.0.0.0	6.4.0.0.0 · 7.0.0.0.0
Oracle Communications	Core (WebAssembly Micro Runtime)	6.1.1-7.0.0
Oracle Financial Services Applications	Base (Apache Avro)	14.4.0.0.0-14.7.0.0.0
Oracle Financial Services Applications	IDM Authentication (Apache Avro)	21.1.0.0.0, 22.1.0.0.0, 22.2.0.0.0	21.1.0.0.0 · 22.1.0.0.0 · 22.2.0.0.0
Oracle Financial Services Applications	Installer (Apache Avro)	8.1.2.6, 8.1.2.7, 8.1.3.0	8.1.2.6 · 8.1.2.7 · 8.1.3.0
Oracle Financial Services Applications	Maintenance (Apache Avro)	14.5.0.0.0-14.7.0.0.0
Oracle Fusion Middleware	BPM Composer (Apache Avro)	12.2.1.4.0	12.2.1.4.0
Oracle Fusion Middleware	Third Party (Apache Avro)	12.2.1.4.0	12.2.1.4.0
Oracle GoldenGate	Application Adapters (Apache Avro Java)	19.1.0.0.0-19.1.0.0.9
Oracle GoldenGate	Spark (Apache Avro Java)	19.1.0.0.0-19.1.0.0.9

Family

Component

Versions, as Oracle lists them

Read as

Oracle Analytics

Analytics Server (Apache Avro)

6.4.0.0.0, 7.0.0.0.0

6.4.0.0.0 · 7.0.0.0.0

Oracle Communications

Core (WebAssembly Micro Runtime)

6.1.1-7.0.0

Oracle Financial Services Applications

Base (Apache Avro)

14.4.0.0.0-14.7.0.0.0

Oracle Financial Services Applications

IDM Authentication (Apache Avro)

21.1.0.0.0, 22.1.0.0.0, 22.2.0.0.0

21.1.0.0.0 · 22.1.0.0.0 · 22.2.0.0.0

Oracle Financial Services Applications

Installer (Apache Avro)

8.1.2.6, 8.1.2.7, 8.1.3.0

8.1.2.6 · 8.1.2.7 · 8.1.3.0

Oracle Financial Services Applications

Maintenance (Apache Avro)

14.5.0.0.0-14.7.0.0.0

Oracle Fusion Middleware

BPM Composer (Apache Avro)

12.2.1.4.0

Oracle Fusion Middleware

Third Party (Apache Avro)

12.2.1.4.0

Oracle GoldenGate

Application Adapters (Apache Avro Java)

19.1.0.0.0-19.1.0.0.9

Oracle GoldenGate

Spark (Apache Avro Java)

19.1.0.0.0-19.1.0.0.9

Maven packages

Affected and fixed versions, from OSV.dev

Package Introduced Fixed Last affected

org.apache.avro:avro 0 1.11.3 unbounded

Package	Introduced	Fixed	Last affected
`org.apache.avro:avro`	0	`1.11.3`	unbounded

Products and versions

2 products, 2 version entries

Source	Vendor	Product	Scheme	Affected versions
nvd	apache	avro	generic	＜ 1.11.3
osv	org.apache.avro	avro	generic	＜ 1.11.3

Source

Vendor

Product

Scheme

Affected versions

nvd

apache

avro

generic

＜ 1.11.3

osv

org.apache.avro

avro

generic

＜ 1.11.3

References

URL	Tags
https://github.com/apache/avro/commit/a12a7e44ddbe060c3dc731863cad5c15f9267828	WEB
https://github.com/apache/avro	PACKAGE
https://github.com/pypa/advisory-database/tree/main/vulns/avro/PYSEC-2023-188.yaml	WEB
https://issues.apache.org/jira/browse/AVRO-3819	WEB
https://lists.apache.org/thread/q142wj99cwdd0jo5lvdoxzoymlqyjdds	WEB
https://security.netapp.com/advisory/ntap-20240621-0006	WEB
https://www.openwall.com/lists/oss-security/2023/09/29/6	WEB
http://www.openwall.com/lists/oss-security/2023/09/29/6	WEB
https://security.netapp.com/advisory/ntap-20240621-0006/

URL

Timeline

Published	2023-09-29	By the CVE Program.
NVD record modified	2026-06-17	NVD's own last-modified date for this record.

Published

2023-09-29

By the CVE Program.

NVD record modified

2026-06-17

NVD's own last-modified date for this record.

How VRT decided (5 of 24 rules ran)

5 of 24 rules ran. The rest didn't run because an earlier rule had already settled the CVE.

# Rule Outcome Status Detail

identity: Does this identifier describe a vulnerability at all? the first rule that matches decides

1 rejected no match CVE Program withdrawal of this identifier

scope: Is it a vulnerability Waratek protects? the first rule that matches decides

2 armr-patch-file no match An ARMR patch file on disk for this CVE

3 armr-secure-rule-file no match An ARMR security-rule template on disk for this CVE

4 manual-classification no match A researcher's recorded decision for this specific CVE

5 manual classification decided it matched Protected by Waratek Found in legacy manual classifications

6 non-java-upstream not reached A root cause in non-Java code: an OS kernel, a C library, or a bundled runtime

7 oracle-component not reached The defect being in a component of a tracked product the agent does not reach: JavaFX, the Java SE installer, the JInitiator browser plug-in, the native WebLogic proxy plug-in, or a native part of Oracle Application Server or Collaboration Suite (HTTP Server, Web Cache, Internet Directory, mail and calendar servers). Oracle gives these no CPE of their own and names them only in the description.

8 java-client-side not reached Oracle's own risk-matrix note saying the CVE is reached only through untrusted code in the Java sandbox (applets, Web Start) or only through a client installation of Java, so a server running its own trusted code is not exposed

9 osv-maven not reached An OSV.dev record of this CVE affecting a package published to Maven Central. When every such package is one business applications do not use (Minecraft mods and launchers, Fastjson) and no tracked product is named by CPE, it settles the CVE as Outside Waratek scope instead

10 cna-maven-package not reached An affected Maven artifact named by the CNA itself

11 known-cpe-product not reached An NVD CPE naming a product ARMR tracks

12 cna-cpe-product not reached A CPE the CNA published naming a tracked product. Oracle publishes these on advisory day, months before NVD.

13 oracle-advisory-family not reached A tracked product family named in Oracle's own risk matrix. CPE cannot carry a suite name, only a module.

14 cna-named-product not reached A tracked product named in words by the CVE's own CNA, on a record with no CPE yet. Apache and Eclipse publish these on advisory day, before NVD adds CPE data.

15 non-deployable-product not reached The only affected product being a sealed appliance image, where Java runs but no -javaagent can be attached

16 unmatched-product not reached No tracked product matched above, and none present at all

disposition: What do we do about one that is? every rule runs

17 patch-hint not reached A reference pointing at the upstream fix: a commit, a PR, a Red Hat bug

18 open-source-maven not reached The affected package being open source on Maven, so the fix can be read

19 poc-derivable not reached An indexed exploit clearing the evidence bar to reverse-engineer, where there is no source to read

20 no-exploit not reached Nothing to build a rule from yet: no published exploit, no CISA record of exploitation and no source-level change to read

21 secure-rule-match not reached A vulnerability class already blocked by an ARMR security rule

22 exploited-no-fix-or-poc not reached Somebody exploiting this CVE (a CISA or VulnCheck KEV listing, or a CISA verdict of active exploitation), with no fix, source code or PoC to build a rule from

23 below-action-threshold not reached Medium or Low severity, no CISA or VulnCheck KEV listing, no PoC clearing the evidence bar, no CISA verdict, no Oracle advisory

24 no-exploit-published not reached Exploit code for this candidate, published in a reviewed catalogue or a GitHub repository with 5 or more stars, or in use per CISA or VulnCheck; not only a CISA verdict, a forecast, or nothing at all

NVD ↗ · CVE.org ↗