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Echo: libarchive: security update to 3.7.4-4+e4

high Tenable Cloud Security Plugin ID 461013

Description

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

 - A flaw was identified in the RAR5 archive decompression logic of the libarchive library, specifically
 within the archive_read_data() processing path. When a specially crafted RAR5 archive is processed, the
 decompression routine may enter a state where internal logic prevents forward progress. This condition
 results in an infinite loop that continuously consumes CPU resources. Because the archive passes checksum
 validation and appears structurally valid, affected applications cannot detect the issue before
 processing. This can allow attackers to cause persistent denial-of-service conditions in services that
 automatically process archives. (CVE-2026-4111)

Solution

Update the libarchive library and its related packages to version 3.7.4-4+e4 or later.

See Also

https://advisory.echohq.com/cve/CVE-2026-4111

Plugin Details

Severity: High

ID: 461013

Version: Revision 1.1

Type: Local

Published: 10/2/2026

Updated: 10/2/2026

Risk Information

VPR

Risk Factor: Low

Score: 3

Percentile: 23.62

CVSS v2

Risk Factor: High

Base Score: 7.8

Temporal Score: 5.8

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

CVSS Score Source: CVE-2026-4111

CVSS v3

Risk Factor: High

Base Score: 7.5

Temporal Score: 6.5

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

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

Vulnerability Information

Exploit Ease: No known exploits are available

Patch Publication Date: 3/14/2026

Vulnerability Publication Date: 3/13/2026

Reference Information

CVE: CVE-2026-4111

IAVA: 2026-A-0692-S