Advisory severityCritical9.8Apache Software Foundation

Critical [CVE-2026-71558] Heap type confusion vulnerability in Apache Fory C++ deserialization

This critical-severity Apache Software Foundation advisory covers CVE-2026-71558 affecting Apache Fory.

Aggregated and source-linked by VulniPulse. Data sources, validation and limitations.

CVE-2026-71558 Source published Aug 7, 2026Source updated Aug 8, 2026

VulniPulse record published Aug 7, 2026Record updated Aug 9, 2026

CVE-2026-71558

Affected products & platforms

Apache Software FoundationUnclassified

Open source advisory

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Summary

Heap type confusion vulnerability in Apache Fory C++ deserialization.

This issue affects Apache Fory C++ versions from 0.14.0 before 1.5.0. A crafted input payload can bypass type compatibility checks during polymorphic smart-pointer deserialization, causing an object of an incompatible type to be treated as the declared base type.

This may result in undefined behavior and potentially lead to denial of service or arbitrary code execution.

Users are recommended to upgrade to Apache Fory 1.5.0, which fixes this issue. Applications not using Apache Fory C++ polymorphic smart-pointer deserialization are not affected.

Affected versions

0.14.0 before 1.5.0

Official advisory · high-confidence parse· fetched 2 months ago·verify at source

Fixed versions

1.5.0

Official advisory · high-confidence parse· fetched 2 months ago·verify at source

Mitigation checklist

Recommended fix / mitigation

Users are recommended to upgrade to Apache Fory 1.5.0, which fixes this issue.

Official advisory · high-confidence parse· fetched 2 months ago·verify at source

Sources

Official and corroborating records used to build this advisory.

Official vendor advisoryofficial
Official advisory page fetched and parsed; accepted detail fields are attributed to this page.
Apache Software Foundation
CVE.org CNA recordCVE.org
Independent CNA record used for near-real-time discovery and missed-CVE reconciliation. Discovered from the machine-readable feed https://raw.githubusercontent.com/CVEProject/cvelistV5/main/cves/delta.json; this link opens the CVE.org record for CVE-2026-71558 instead of the raw feed document.
CVE Program

Cross-references

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CVE-2026-71558NVD CVE.org MITRE

Official resources

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Official documentation
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Apache project downloads (fixed releases)
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