Detections
Analytics

Alpine: libexpat, multiple expat packages: security update to 2.7.4-r0

high Tenable Self-Hosted Container Security Plugin ID 437479

Description

There are packages installed that are affected by multiple vulnerabilities referenced in the following CVEs:

 - In libexpat before 2.7.4, XML_ExternalEntityParserCreate does not copy unknown encoding handler user data.
 (CVE-2026-24515)

 - In libexpat before 2.7.4, the doContent function does not properly determine the buffer size bufSize
 because there is no integer overflow check for tag buffer reallocation. (CVE-2026-25210)

See Also

https://security.alpinelinux.org/vuln/CVE-2026-24515

https://security.alpinelinux.org/vuln/CVE-2026-25210

Plugin Details

Severity: High

ID: 437479

Version: Revision 1.7

Type: Local

Published: 2/4/2026

Updated: 7/2/2026

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

Risk Information

VPR

Risk Factor: Medium

Score: 4.9

Percentile: 57.95

CVSS v2

Risk Factor: Medium

Base Score: 6.8

Temporal Score: 5

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

CVSS Score Source: CVE-2026-25210

CVSS v3

Risk Factor: High

Base Score: 7.8

Temporal Score: 6.8

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

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

Vulnerability Information

Exploit Ease: No known exploits are available

Vulnerability Publication Date: 1/23/2026

Reference Information

CVE: CVE-2026-24515, CVE-2026-25210