Vulnerability · Published Oct 25, 2026 · Assigned by CPANSec
CVE-2026-115824Starman versions before 0.4019 for Perl allow memory exhaustion via unbounded buffering of chunked request bodies
High 7.5
In plain English
A high-severity resource allocation without limits in Starman. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.6% (higher than 49% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.
Official description
Starman versions before 0.4019 for Perl allow memory exhaustion via unbounded buffering of chunked request bodies. The chunked body decoder keeps each chunk in memory until the whole chunk and its CRLF have arrived, and sets no limit on the length of a chunk-size line. A client that declares a huge chunk size and streams data, or sends a chunk-size line that never ends, grows the buffer for as long as it keeps sending. A remote attacker can exhaust worker memory with a single connection.
Affected packages & fixed versions
| Ecosystem | Package | Fixed in | Advisory |
|---|---|---|---|
| Debian:12 | starman | no fix listed | DEBIAN-CVE-2026-115824 |
| Debian:13 | starman | no fix listed | DEBIAN-CVE-2026-115824 |
| Debian:14 | starman | 0.4019-1 | DEBIAN-CVE-2026-115824 |
| Ubuntu:22.04:LTS | starman | no fix listed | UBUNTU-CVE-2026-115824 |
| Ubuntu:24.04:LTS | starman | no fix listed | UBUNTU-CVE-2026-115824 |
| Ubuntu:26.04:LTS | starman | no fix listed | UBUNTU-CVE-2026-115824 |
| Ubuntu:26.10 | starman | no fix listed | UBUNTU-CVE-2026-115824 |
Affected products (as reported)
| Vendor | Product | Versions |
|---|---|---|
| Starman | 0 – before 0.4019 |
Weakness: CWE-770 · Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H