Security Digest · Vulnerability record

CVE-2023-29234: Bypass serialize checks in Apache Dubbo

A deserialization vulnerability existed when decode a malicious package.This issue affects Apache Dubbo: from 3.1.0 through 3.1.10, from 3.2.0 through 3.2.4.

CVSS 9.8 Critical EPSS 7.4% · p94

Should you act?

Critical and remotely reachable

No known exploitation yet, but it is network-reachable without credentials. This signal is computed from CISA KEV, EPSS and CVSS data; it is not an editorial verdict.

  • No confirmed exploitation. It is not in CISA’s KEV catalog. That can change quickly after a public write-up; re-check if you are affected.
  • EPSS 7.4%, percentile 94: FIRST’s model estimates a 7.4% chance of exploitation activity in the next 30 days, higher than 94% of all scored CVEs (elevated). EPSS is a probability, not a verdict.
  • Remotely reachable with no login and no user interaction. If the vulnerable service is exposed to the internet, prioritize it.
  • Only applies if your dependency tree includes org.apache.dubbo:dubbo (Maven) >= 3.1.0, < 3.1.11, fixed in 3.1.11; org.apache.dubbo:dubbo (Maven) >= 3.2.0, < 3.2.5, fixed in 3.2.5. Check your lockfile, including transitive dependencies.

What it is

A deserialization vulnerability existed when decode a malicious package.This issue affects Apache Dubbo: from 3.1.0 through 3.1.10, from 3.2.0 through 3.2.4. Users are recommended to upgrade to the latest version, which fixes the issue.

From the GitHub advisory

A deserialization vulnerability existed when decode a malicious package.This issue affects Apache Dubbo: from 3.1.0 through 3.1.10, from 3.2.0 through 3.2.4.

Users are recommended to upgrade to the latest version, which fixes the issue.

Weakness type: CWE-502.

Product: org.apache.dubbo:dubbo (Maven) · Assigned by: apache · Published: 2023-12-15

Affected and fixed versions

EcosystemPackageVulnerableFirst fixed
Mavenorg.apache.dubbo:dubbo>= 3.1.0, < 3.1.113.1.11
Mavenorg.apache.dubbo:dubbo>= 3.2.0, < 3.2.53.2.5
VendorProductAffected versions (per CVE record)
Apache Software FoundationApache Dubbo3.1.0 <= 3.1.10, 3.2.0 <= 3.2.4

Severity scores

Scored byCVSSScoreVector
GitHub3.19.8 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
  • Attack vector: network (remotely reachable)
  • Attack complexity: low
  • Privileges required: none (no login)
  • User interaction: none
  • Scope: unchanged

CVSS measures how bad a flaw is if exploited, not how likely exploitation is. Read it next to the exploitation data below.

Exploitation and urgency

  • CISA KEV: not listed (no confirmed in-the-wild exploitation known to CISA).
  • FIRST EPSS (model of 2026-10-21): 7.40% probability of exploitation activity in the next 30 days; percentile 94.

Timeline

  • — CVE record published by apache
  • — GitHub-reviewed advisory GHSA-6x49-w35h-wqrj published (critical)
  • — CVE record last updated

Sources and references

Original sources first. Version and fix details should always be confirmed against the vendor or project advisory.

Vendor and project advisories, patches

  1. lists.apache.org lists.apache.org

Vulnerability records

  1. GitHub Advisory GHSA-6x49-w35h-wqrj github.com
  2. CVE.org record CVE-2023-29234 cve.org
  3. NVD entry CVE-2023-29234 nvd.nist.gov

Other references from the CVE record and advisory

  1. openwall.com openwall.com

Critical Maven advisories · Today’s Security Digest