Detections
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Echo: curl: security update to 1:8.14.1-2+deb13u3+e2

medium Tenable Cloud Security Plugin ID 465326

Description

There are packages installed that are affected by a vulnerability referenced in the following CVE:

 - curl might erroneously pass on credentials for a first proxy to a second proxy. This can happen when the
 following conditions are true: 1. curl is setup to use specific different proxies for different URL
 schemes 2. the first proxy needs credentials 3. the second proxy uses no credentials 4. while using the
 first proxy (using say `http://`), curl is asked to follow a redirect to a URL using another scheme (say
 `https://`), accessed using a second, different, proxy (CVE-2026-6253)

Solution

Update the curl library and its related packages to version 1:8.14.1-2+deb13u3+e2 or later.

See Also

https://advisory.echohq.com/cve/CVE-2026-6253

Plugin Details

Severity: Medium

ID: 465326

Version: Revision 1.1

Type: Local

Published: 10/2/2026

Updated: 10/2/2026

Risk Information

VPR

Risk Factor: Medium

Score: 5

Percentile: 94.14

CVSS v2

Risk Factor: Medium

Base Score: 5.4

Temporal Score: 4.2

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

CVSS Score Source: CVE-2026-6253

CVSS v3

Risk Factor: Medium

Base Score: 5.9

Temporal Score: 5.3

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

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

Vulnerability Information

Exploit Available: true

Exploit Ease: Exploits are available

Patch Publication Date: 4/30/2026

Vulnerability Publication Date: 4/30/2026

Reference Information

CVE: CVE-2026-6253

IAVA: 2026-A-0397-S