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.
- Exploited in the wild
- Not known
- Fix
- Available
What is CVE-2026-115825?
CVE-2026-115825 is a vulnerability, published on 25 Oct 2026.
Official 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.
Weakness: CWE-789
Which versions are affected by CVE-2026-115825?
How do I fix CVE-2026-115825?
Upgrade to a fixed version.
Is CVE-2026-115825 being exploited?
There is no known exploitation of CVE-2026-115825 in the wild and no public exploit code.
Sources
Also known as DEBIAN-CVE-2026-115825, GHSA-jmh5-fmfv-h6f8.