How severe is CVE-2020-36282?

CVE-2020-36282 has a CVSS score of 9.8/10, rated CRITICAL. Immediate patching is strongly recommended.

Which packages are affected by CVE-2020-36282?

CVE-2020-36282 affects the following packages: com.rabbitmq.jms:rabbitmq-jms (Maven), com.rabbitmq.jms:rabbitmq-jms (Maven). Ecosystems affected: Maven.

How do I fix CVE-2020-36282?

Update com.rabbitmq.jms:rabbitmq-jms to 2.2.0 or later, then make sure no transitive (indirect) dependency still pins the vulnerable range — O3 confirms CVE-2020-36282 is resolved across your whole dependency graph.

How do I detect CVE-2020-36282 in my Maven dependencies?

Scan your dependency tree (package-lock.json, pnpm-lock.yaml, requirements.txt, go.sum, etc.) for com.rabbitmq.jms:rabbitmq-jms, including transitive dependencies — a direct dependency you never call can still pull in a vulnerable version.

How do I mitigate CVE-2020-36282 if there is no patch (or I can't update yet)?

Do not deserialise data from untrusted sources: where the format allows it, restrict deserialisation to an explicit allowlist of expected types, and prefer a data-only format (JSON, Protobuf) over one that can reconstruct arbitrary objects until you can upgrade.

Is CVE-2020-36282 actively exploited in the wild?

No public exploit code has been indexed for CVE-2020-36282 yet. This does not mean the vulnerability cannot be exploited — absence of public exploits does not imply safety. Apply the recommended fix and use O3 Security to monitor your exposure.

What is the EPSS score for CVE-2020-36282?

CVE-2020-36282 has an EPSS (Exploit Prediction Scoring System) score of 2.8%, placing it in the 86th percentile of all CVEs. EPSS is maintained by FIRST.org and estimates the probability that a vulnerability will be exploited in the wild within the next 30 days. This score indicates relatively lower exploitation probability, though the CVSS severity should still guide your patching priority.

What type of vulnerability is CVE-2020-36282?

CVE-2020-36282 is classified as Deserialization of Untrusted Data (CWE-502). This weakness type describe the underlying flaw category, which helps determine the potential impact and the right class of mitigation. This is a high-impact weakness class that often enables remote code execution or data exposure.

When was CVE-2020-36282 published, and has it been updated?

CVE-2020-36282 was published on March 12, 2021 and was last updated on July 8, 2026. Advisory data evolves as severity scores, affected ranges, and exploit intelligence are revised — always check the latest version of the advisory before acting.

☕

☕ Maven

Not in CISA KEV

CRITICAL severity

CVE-2020-36282 — rabbitmq-jms

CRITICALFix: rabbitmq/rabbitmq-jms-client#136

CVE-2020-36282 is a critical-severity (CVSS 9.8) Deserialization of Untrusted Data vulnerability in com.rabbitmq.jms:rabbitmq-jms. A fix is available for com.rabbitmq.jms:rabbitmq-jms — see the affected versions and patch details below.

Unsafe Deserialization that can Result in Code Execution

Also known asGHSA-v525-c3g5-cg9p

Published

Mar 12, 2021

Updated

Jul 8, 2026

Affected

2 pkgs

Patched

2 / 2

Exploits

None indexed

Exploitation data as of Oct 10, 2026 · OSV.dev, NVD, FIRST.org (EPSS)

EPSS Exploitation Probability

via FIRST.org ↗

2.8%probability of exploitation in next 30 days

Lower Risk0.00%

Lower risk than most CVEs86th percentile — riskier than 86% of all scored CVEsHighest risk

Probability of exploitation in the next 30 days, from FIRST.org EPSS.

How urgent is this, really

CVE-2020-36282 by exploitation likelihood (EPSS) against impact (CVSS). Outside the shaded patch-first corner.

Where this sits among everything scored

Of 385,386 CVEs with a current EPSS score, this one falls in the < 10% band (highlighted). Counts from FIRST.org, log-scaled.

Real-World Exposure

2 pkgs affected

☕com.rabbitmq.jms:rabbitmq-jms☕com.rabbitmq.jms:rabbitmq-jms

Real-time download stats are indexed for npm and PyPI packages. This vulnerability affects Maven packages — download data is not available via public APIs for these ecosystems.

Description

JMS Client for RabbitMQ 1.x before 1.15.2 and 2.x before 2.2.0 is vulnerable to unsafe deserialization that can result in code execution via crafted StreamMessage data.

Affected Packages

2 total 2 fixed

Ecosystem	Package	Vulnerable range	Fix
☕Maven	`com.rabbitmq.jms:rabbitmq-jms`	≥ 2.0&&< 2.2.0	2.2.0`com.rabbitmq.jms:rabbitmq-jms:2.2.0`
☕Maven	`com.rabbitmq.jms:rabbitmq-jms`	≥ 1.0&&< 1.15.2	1.15.2`com.rabbitmq.jms:rabbitmq-jms:1.15.2`

Affected Products

1 product · 2 configurations

Application

jms clientrabbitmq

≥ 2.0.0 && < 2.2.0

range

Detection & mitigation playbook

Open-source dependency

Detect
Scan your dependency tree (package-lock.json, pnpm-lock.yaml, requirements.txt, go.sum, etc.) for com.rabbitmq.jms:rabbitmq-jms, including transitive dependencies — a direct dependency you never call can still pull in a vulnerable version.
Fix
Update com.rabbitmq.jms:rabbitmq-jms to 2.2.0 or later, then make sure no transitive (indirect) dependency still pins the vulnerable range — O3 confirms CVE-2020-36282 is resolved across your whole dependency graph.
Workarounds
Do not deserialise data from untrusted sources: where the format allows it, restrict deserialisation to an explicit allowlist of expected types, and prefer a data-only format (JSON, Protobuf) over one that can reconstruct arbitrary objects until you can upgrade.

Frequently Asked Questions

JMS Client for RabbitMQ 1.x before 1.15.2 and 2.x before 2.2.0 is vulnerable to unsafe deserialization that can result in code execution via crafted StreamMessage data.

O3 Security · Impact-Aware SCA

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Find it across Maven, including transitive dependencies.

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CVSS Score

9.8/10CVSS v3 base

Vector breakdown

Attack Vector

Network

Attack Complexity

Low

Privileges Required

None

User Interaction

None

Scope

Unchanged

Confidentiality

High

Integrity

High

Availability

High

Raw vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

CWE Classification

CWE-502Deserialization of Untrusted Data

Weaponization

No known public exploit tooling found.

OpenSSF Scorecard

Package health score

rabbitmq-jms-client

4.8/10

Maintained10/10

Code-Review0/10

Branch-Protection0/10

Assessed Oct 5, 2026

Timeline

Disclosed

Mar 12, 2021

Last updated

Jul 8, 2026

Identifiers

CVE-2020-36282

GHSA-v525-c3g5-cg9p

References

Advisorygithub.com Advisorygithub.com Advisorynvd.nist.gov Fixgithub.com Webmedium.com Webgithub.com Webmedium.com

Related vulnerabilities

This CVE is critical severity; 4 of 8 other CVEs with CWE-502 are rated as high or higher (top: critical).

CVE-2025-66455CVE-2025-59953CVE-2026-49400CVE-2026-50646CVE-2026-78683CVE-2026-79657GHSA-gqvg-gmmx-x4hmCVE-2026-55175Browse all CWE-502

Provenance

Sources

OSV.devNVDFIRST.org (EPSS)

Last verifiedJul 8, 2026

CVE-2020-36282 — rabbitmq-jms

EPSS Exploitation Probability

How urgent is this, really

Where this sits among everything scored

Real-World Exposure

Description

Affected Packages

Affected Products

Detection & mitigation playbook

Detect

Fix

Workarounds

Frequently Asked Questions

Is CVE-2020-36282 in your dependencies?