Furl versions through 3.15 for Perl allow memory exhaustion via unbounded decompression of HTTP responses
Summary
| CVE | CVE-2026-65059 |
|---|---|
| State | PUBLISHED |
| Assigner | CPANSec |
| Source Priority | CVE Program / NVD first with legacy fallback |
| Published | 2026-11-02 17:17:44 UTC |
| Updated | 2026-11-02 20:17:58 UTC |
| Description | Furl versions through 3.15 for Perl allow memory exhaustion via unbounded decompression of HTTP responses. Furl inflates a response body sent with a gzip, x-gzip or deflate Content-Encoding and appends the output to the response string with no size limit. It does this whether or not the request asked for compression, and no option caps the decompressed size. Responses read with write_file or write_code are streamed rather than held in memory. A malicious server, or an attacker on a plain HTTP connection, can send a small compressed response that expands to exhaust the client's memory and end the process. |
Risk And Classification
Problem Types: CWE-409 | CWE-409 CWE-409 Improper Handling of Highly Compressed Data (Data Amplification)
There are no known software configurations currently associated with this CVE in NVD or the CVE Program record.
References
| Reference | Source | Link | Tags |
|---|---|---|---|
| www.openwall.com/lists/oss-security/2026/11/02/5 | af854a3a-2127-422b-91ae-364da2661108 | www.openwall.com | |
| github.com/tokuhirom/Furl/pull/139 | 9b29abf9-4ab0-4765-b253-1875cd9b441e | github.com | |
| metacpan.org/release/SYOHEX/Furl-3.15/source/lib/Furl/ZlibStream.pm | 9b29abf9-4ab0-4765-b253-1875cd9b441e | metacpan.org | |
| CVE Program record | CVE.ORG | www.cve.org | canonical |
| NVD vulnerability detail | NVD | nvd.nist.gov | canonical, analysis |
No vendor comments have been submitted for this CVE.
Additional Advisory Data
Solutions
CNA: No fixed CPAN release is currently available.
There are currently no legacy QID mappings associated with this CVE.