CVE WatchOct 26, 2026

CVE-2026-115825

HTTP::Server::PSGI versions before 1.0056 for Perl allow a single request to crash the server by declaring a large Content-Length. The requ

CVSS

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No CVSS

EPSS

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KEV

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Exploit Today

0-100

Published: Oct 25, 2026 · Last modified: Oct 26, 2026 · CWE-789

EPSS · 30d

Not enough EPSS history yet.

Technical description

HTTP::Server::PSGI versions before 1.0056 for Perl allow a single request to crash the server by declaring a large Content-Length. The request body is read with sysread() calls sized by the remaining Content-Length. Perl grows the read buffer to the requested length before any data arrives, so the server tries to allocate as much memory as the client declares. A remote attacker can send one request with a large Content-Length and a few body bytes, and perl exits with an out-of-memory error before the application is called. HTTP::Server::PSGI runs as a single process, so the server stays down until restarted.

Official references

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