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CRITICAL severity

Incomplete List of Disallowed Inputs in SOFA-HessianGHSA-pfwp-8pq4-g7pv

CRITICAL

GHSA-pfwp-8pq4-g7pv is a critical-severity (CVSS 9.8) CWE-184 vulnerability in com.alipay.sofa:hessian. A fix is available for com.alipay.sofa:hessian — see the affected versions and patch details below.

Also known asCVE-2019-9212
Published
Updated
Affected
2 pkgs
Patched
2 / 2
Exploits
None indexed
Exploitation data as of Nov 7, 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
0.32%1.32%2.32%3.33%0.9%2.8%May 26Aug 26Nov 26

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

How urgent is this, really

Where this sits among everything scored

Real-World Exposure

2 pkgs affected
☕com.alipay.sofa:hessian☕com.alipay.sofa:hessian

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

SOFA-Hessian through 4.0.2 allows remote attackers to execute arbitrary commands via a crafted serialized Hessian object because blacklisting of com.caucho.naming.QName and com.sun.org.apache.xpath.internal.objects.XString is mishandled, related to Resin Gadget. NOTE: The vendor doesn’t consider this issue a vulnerability because the blacklist is being misused. SOFA Hessian supports custom blacklist and a disclaimer was posted encouraging users to update the blacklist or to use the whitelist feature for their specific needs since the blacklist is not being actively updated

Affected Packages

2 total 2 fixed
EcosystemPackageVulnerable rangeFix
☕Mavencom.alipay.sofa:hessian≥ 4.0.0&&< 4.0.24.0.2com.alipay.sofa:hessian:4.0.2
☕Mavencom.alipay.sofa:hessianall versions3.3.6com.alipay.sofa:hessian:3.3.6

Affected Products

1 product · 1 configurations
Application
sofa-hessianantfin
≤ 4.0.2
range

Detection & mitigation playbook

Open-source dependency

  1. Detect

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

  2. Fix

    Update com.alipay.sofa:hessian to 4.0.2 or later, then make sure no transitive (indirect) dependency still pins the vulnerable range — O3 confirms GHSA-pfwp-8pq4-g7pv is resolved across your whole dependency graph.

  3. 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

SOFA-Hessian through 4.0.2 allows remote attackers to execute arbitrary commands via a crafted serialized Hessian object because blacklisting of com.caucho.naming.QName and com.sun.org.apache.xpath.internal.objects.XString is mishandled, related to Resin Gadget.
O3 Security · Impact-Aware SCA

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Incomplete List of Disallowed Inputs in SOFA-Hessian