Detections
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Echo: php-7.2: security update to 7.2.34+e1php-8.1: security update to 8.1.34+e1

medium Tenable Cloud Security Plugin ID 476620

Description

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

 - php_openssl_matches_wildcard_name() in ext/openssl/xp_ssl.c underflows the length argument passed to
 memchr() when a TLS server certificate presents a wildcard name whose literal characters are together
 longer than the hostname being verified. A malicious server presenting such a certificate makes the PHP
 client read up to SIZE_MAX bytes past the end of a heap allocation. The path is reachable from any default
 client stream, because verify_peer_name is enabled by default. (CVE-2026-91767)

Solution

Update the php-7.2 library and its related packages to version 7.2.34+e1 or later.

See Also

https://advisory.echohq.com/cve/CVE-2026-91767

Plugin Details

Severity: Medium

ID: 476620

Version: Revision 1.2

Type: Local

Published: 10/22/2026

Updated: 10/25/2026

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

Risk Information

VPR

Risk Factor: Low

Score: 3

Percentile: 23.68

CVSS v2

Risk Factor: Medium

Base Score: 6.1

Temporal Score: 4.5

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

CVSS Score Source: CVE-2026-91767

CVSS v3

Risk Factor: Medium

Base Score: 6.5

Temporal Score: 5.7

Vector: CVSS:3.0/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:N/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: 10/22/2026

Vulnerability Publication Date: 9/22/2026

Reference Information

CVE: CVE-2026-91767