Curl 8.7.0 < 8.23.0 Cookie Jar Parsing Issue

medium Nessus Plugin ID 371152

Synopsis

The remote host has a program that is affected by a cookie jar vulnerability.

Description

The version of curl installed on the remote host is 8.7.0 prior to 8.23.0. It is, therefore, affected by a cookie jar vulnerability:

- When writing a long cookie name and value to a Netscape cookie jar, a remote HTTP server can make curl write a record that exceeds its line-length parsing limit. Consequently, any subsequent curl invocation reading from that same cookie jar using --cookie silently aborts parsing prematurely upon encountering the too long line, ignoring all subsequent valid cookies in the file. (CVE-2026-92386)

Note that Nessus has not tested for this issue but has instead relied only on the application's self-reported version number.

Solution

Upgrade Curl to version 8.23.0 or later.

Plugin Details

Severity: Medium

ID: 371152

File Name: curl_CVE-2026-92386.nasl

Version: 1.1

Type: Local

Agent: windows, macosx, unix

Family: Misc.

Published: 10/23/2026

Updated: 10/23/2026

Configuration: Enable thorough checks (optional)

Supported Sensors: Nessus Agent, Continuous Assessment, Tenable Cloud Security, Tenable Self-Hosted Container Security, Nessus

Risk Information

CVSS Score Rationale: Score from an analysis done by tenable

VPR

Risk Factor: Medium

Score: 4.9

Percentile: 58.48

CVSS v3

Risk Factor: Medium

Base Score: 6.5

Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N

Vulnerability Information

CPE: cpe:/a:haxx:curl

Required KB Items: installed_sw/Curl

Patch Publication Date: 10/14/2026

Vulnerability Publication Date: 10/14/2026

Reference Information

CVE: CVE-2026-92386

IAVA: 2026-A-1143

Detections

Analytics