A AegiFlow
CRITICALCVSS 9.8

CVE-2010-1866

CVE-2010-1866 updated by NVD

Modified
2026-09-20
Sources
nvd

Summary

The dechunk filter in PHP 5.3 through 5.3.2, when decoding an HTTP chunked encoding stream, allows context-dependent attackers to cause a denial of service (crash) and possibly trigger memory corruption via a negative chunk size, which bypasses a signed comparison, related to an integer overflow in the chunk size decoder.

Affected packages

EcosystemPackageAffected versionsFixed versions
PHPphp[object Object]

References

Includes data from the National Vulnerability Database (NIST). NVD data is in the public domain; this page is not endorsed by NIST.

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