What is CVE-2018-25160?

CVE-2018-25160 is a medium-severity vulnerability in Tokuhirom HTTP\, classified under Improper Input Validation. CVSS score: 6.5/10. Published 2026-02-27.

How severe is CVE-2018-25160?

Medium severity. CVSS v3 base score is 6.5 out of 10.

Improper input validation in Tokuhirom HTTP\

CVE-2018-25160

HTTP::Session2 versions through 1.09 for Perl does not validate the format of user provided session ids, enabling code injection or other impact depending on session backend. For example, if an application uses memcached for session storage, then it may be possible for a remote attacker to inject memcached commands in the session id value.

Vulnerability class: Drupalgeddon 2 (CVE-2018-7600)

Published 2026-02-27 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 6.5 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N.

EPSS exploit prediction

EPSS: 0.004 (32.8th percentile), scored 2026-09-30.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 33rd percentile — 32.8% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.004 · newest: 0.004 · change: +0.000

Affected products

Weakness classification (CWE)

CWE-20 — Improper Input Validation

References

9b29abf9-4ab0-4765-b253-1875cd9b441e (Patch, patch)
9b29abf9-4ab0-4765-b253-1875cd9b441e (release-notes, Product, Release Notes)
9b29abf9-4ab0-4765-b253-1875cd9b441e (related, Third Party Advisory)
af854a3a-2127-422b-91ae-364da2661108 (Mailing List, Third Party Advisory)

Frequently asked questions

What is CVE-2018-25160?: CVE-2018-25160 is a medium-severity vulnerability in Tokuhirom HTTP\, classified under Improper Input Validation. CVSS score: 6.5/10. Published 2026-02-27.
How severe is CVE-2018-25160?: Medium severity. CVSS v3 base score is 6.5 out of 10.