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SCA: security update for org.apache.logging.log4j:log4j-core (GHSA-6hg6-v5c8-fphq)

medium Tenable Self-Hosted Container Security Plugin ID 440327

Description

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

 - The fix for CVE-2025-68161 https://logging.apache.org/security.html#CVE-2025-68161 was incomplete: it
 addressed hostname verification only when enabled via the log4j2.sslVerifyHostName
 https://logging.apache.org/log4j/2.x/manual/systemproperties.html#log4j2.sslVerifyHostName system
 property, but not when configured through the verifyHostName
 https://logging.apache.org/log4j/2.x/manual/appenders/network.html#SslConfiguration-attr-verifyHostName
 attribute of the <Ssl> element. Although the verifyHostName configuration attribute was introduced in
 Log4j Core 2.12.0, it was silently ignored in all versions through 2.25.3, leaving TLS connections
 vulnerable to interception regardless of the configured value. A network-based attacker may be able to
 perform a man-in-the-middle attack when all of the following conditions are met: * An SMTP, Socket, or
 Syslog appender is in use. * TLS is configured via a nested <Ssl> element. * The attacker can present a
 certificate issued by a CA trusted by the appender's configured trust store, or by the default Java trust
 store if none is configured. This issue does not affect users of the HTTP appender, which uses a separate
 verifyHostname https://logging.apache.org/log4j/2.x/manual/appenders/network.html#HttpAppender-attr-
 verifyHostName attribute that was not subject to this bug and verifies host names by default. Users are
 advised to upgrade to Apache Log4j Core 2.25.4, which corrects this issue. (CVE-2026-34477)

Solution

Update the org.apache.logging.log4j:log4j-core library and its related packages to version 2.25.4 or later.

See Also

https://github.com/advisories/GHSA-6hg6-v5c8-fphq

Plugin Details

Severity: Medium

ID: 440327

Version: Revision 1.6

Type: Local

Family: SCA Checks

Published: 4/14/2026

Updated: 7/2/2026

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

Risk Information

VPR

Risk Factor: Low

Score: 3

Percentile: 23.75

Vendor

Vendor Severity: Medium

CVSS v2

Risk Factor: Medium

Base Score: 5.4

Temporal Score: 4

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

CVSS Score Source: CVE-2026-34477

CVSS v3

Risk Factor: Medium

Base Score: 5.9

Temporal Score: 5.2

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

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

CVSS v4

Risk Factor: Medium

Base Score: 6.3

Threat Score: 1.7

Threat Vector: CVSS:4.0/E:U

Vector: CVSS:4.0/AV:N/AC:H/AT:N/PR:N/UI:N/VC:L/VI:N/VA:N/SC:N/SI:L/SA:N

Vulnerability Information

Exploit Ease: No known exploits are available

Patch Publication Date: 4/10/2026

Vulnerability Publication Date: 4/10/2026

Reference Information

CVE: CVE-2026-34477

cwe: CWE-297