Echo: curl: security update to 1:8.23.0-1+e1curl-7.69.1: security update to 7.69.1+e2curl-8.1.1: security update to 8.1.1+e2curl-8.17.0: security update to 8.17.0+e2curl-8.8.0: security update to 8.8.0+e2

critical Tenable Cloud Security Plugin ID 476133

Description

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

- When built with wolfSSL, curl can successfully validate a pinned public key hash against a key the TLS
peer does not possess. During the TLS handshake, wolfSSL validates the connection, but curl's subsequent
re-parsing of the same certificate - tricked by a manipulated validity length field - extracts and matches
a different embedded key, incorrectly authorizing the pinned public key. (CVE-2026-87866)

Solution

Update the curl library and its related packages to version 1:8.23.0-1+e1 or later.

See Also

https://advisory.echohq.com/cve/CVE-2026-87866

Plugin Details

Severity: Critical

ID: 476133

Version: Revision 1.4

Type: Local

Published: 10/18/2026

Updated: 11/5/2026

Supported Sensors: Tenable Cloud Security, Tenable Self-Hosted Container Security

Risk Information

VPR

Risk Factor: Medium

Score: 4.3

Percentile: 53.54

CVSS v2

Risk Factor: High

Base Score: 9.4

Temporal Score: 7

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

CVSS Score Source: CVE-2026-87866

CVSS v3

Risk Factor: Critical

Base Score: 9.1

Temporal Score: 7.9

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:U/RL:O/RC:C

Vulnerability Information

Exploit Ease: No known exploits are available

Patch Publication Date: 10/14/2026

Vulnerability Publication Date: 10/14/2026

Reference Information

CVE: CVE-2026-87866