Detections
Analytics

Oracle Linux 10 : curl (ELSA-2026-55432)

critical Nessus Plugin ID 336012

Synopsis

The remote Oracle Linux host is missing a security update.

Description

The remote Oracle Linux 10 host has packages installed that are affected by a vulnerability as referenced in the ELSA-2026-55432 advisory.

 - fix proxy environment variable change detection (CVE-2026-8927)
 - fix HTTP Negotiate connection reuse auth bypass (CVE-2026-1965)
 - fix OAuth2 bearer token leak via redirect and netrc (CVE-2026-3783)
 - fix proxy connection reuse with wrong credentials (CVE-2026-3784)
 - fix SSH host key mismatch on type difference (CVE-2026-9547)
 - fix schemeless URL handling with --proto-default (CVE-2026-12064)
 - fix TLS/STARTTLS connection reuse vulnerability (CVE-2026-8286)

Tenable has extracted the preceding description block directly from the Oracle Linux security advisory.

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

Solution

Update the affected packages.

See Also

https://linux.oracle.com/errata/ELSA-2026-55432.html

Plugin Details

Severity: Critical

ID: 336012

File Name: oraclelinux_ELSA-2026-55432.nasl

Version: 1.1

Type: Local

Agent: unix

Published: 8/17/2026

Updated: 8/17/2026

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

Risk Information

VPR

Risk Factor: Medium

Score: 4.3

Percentile: 53.7

CVSS v2

Risk Factor: High

Base Score: 9.4

Temporal Score: 7.4

Vector: CVSS2#AV:N/AC:L/Au:N/C:C/I:C/A:N

CVSS Score Source: CVE-2026-8927

CVSS v3

Risk Factor: Critical

Base Score: 9.1

Temporal Score: 8.2

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

Temporal Vector: CVSS:3.0/E:P/RL:O/RC:C

Vulnerability Information

CPE: cpe:/o:oracle:linux:10, cpe:/o:oracle:linux:10:2:baseos_patch, p-cpe:/a:oracle:linux:curl, p-cpe:/a:oracle:linux:libcurl-devel, p-cpe:/a:oracle:linux:libcurl-minimal, p-cpe:/a:oracle:linux:libcurl

Required KB Items: Host/local_checks_enabled, Host/RedHat/release, Host/RedHat/rpm-list, Host/OracleLinux

Exploit Available: true

Exploit Ease: Exploits are available

Patch Publication Date: 8/17/2026

Vulnerability Publication Date: 6/25/2026

Reference Information

CVE: CVE-2026-8927

IAVA: 2026-A-0627