CVE-2021-36163

highpriority · track · 40EPSS 0.033 · 88 %ileEUUS

grimoire priorityP2 · Scheduled

Exploitable?

—

no known exploitation

Likely / severe?

3.25% (88th) EPSS

CVSS 7.5 · high

Is it mine?

6 products

Check your exposure

Who says so?

4 sources

cnnvd · enisa_euvd · nvd · osv

EPSS · scored 2026-10-27

In Apache Dubbo, users may choose to use the Hessian protocol. The Hessian protocol is implemented on top of HTTP and passes the body of a POST request directly to a HessianSkeleton: New HessianSkeleton are created without any configuration of the serialization factory and therefore without applying the dubbo properties for applying allowed or blocked type lists. In addition, the generic service is always exposed and therefore attackers do not need to figure out a valid service/method name pair. This is fixed in 2.7.13, 2.6.10.1

cvss

Technical severity, 0–10. One row per scoring source.

9.8

010

base score 0–10 · higher = more severe · hover a vector to decode⚠ sources disagree · high–critical · 7.5–9.8

v2.07.5highAV:N/AC:L/Au:N/C:P/I:P/A:Pprimary · NVD / NIST USexploitability 10 · impact 6.4

v3.19.8criticalCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:Hprimary · NVD / NIST USexploitability 3.9 · impact 5.9

v3.19.8criticalCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:Hsecondary · OSV

v3.19criticalCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H/E:Usecondary · CVSS-BT (t0sche)

weaknesses

The CWE weakness classes this flaw belongs to.

CWE-502USprimaryCWE-502US

affected products (6)

Products and version ranges known to be affected.

Apache Software Foundation Apache Dubbo≤ Apache Dubbo 2.6.x ≤2.6.10enisa_euvdEU
Apache Software Foundation Apache Dubbo≤ Apache Dubbo 2.7.x ≤2.7.12enisa_euvdEU
apache dubbo2.7.0 → 2.7.12nvdUScpe:2.3:a:apache:dubbo:*:*:*:*:*:*:*:*
apache dubbo3.0.0 → 3.0.1nvdUScpe:2.3:a:apache:dubbo:*:*:*:*:*:*:*:*
Maven org.apache.dubbo:dubbo< 2.6.10.1osvUSpkg:maven/org.apache.dubbo/dubbo
Maven org.apache.dubbo:dubbo2.7.0 → 2.7.13osvUSpkg:maven/org.apache.dubbo/dubbo

advisories (1)

Vendor and ecosystem advisories describing this.

GHSA-cpx9-4rwv-486vHessian protocol configuration vulnerability in Apache Dubbo2021-09-08ghsa · osvUS
In Apache Dubbo, users may choose to use the Hessian protocol. The Hessian protocol is implemented on top of HTTP and passes the body of a POST request directly to a HessianSkeleton: New HessianSkeleton are created without any configuration of the serialization factory and therefore without applying the dubbo properties for applying allowed or blocked type lists. In addition, the generic service is always exposed and therefore attackers do not need to figure out a valid service/method name pair. This is fixed in 2.7.13, 2.6.10.1

also known as (3)

Other names and identifiers for this entity.

sources

Which sources assert this record, and when.

cnnvd enisa_euvd nvd osv NVD CVE.org MITRE

published 2021-09-07modified 2026-06-17

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+3739 more

references (5)

External citations — patches, advisories, analysis.

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