Detections
Analytics

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

low Tenable Self-Hosted Container Security Plugin ID 476621

Description

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

 - phar_tar_number() parses the octal size field of a TAR header into a uint32_t with no overflow check. The
 field is 11 octal digits wide and holds values up to 0x1FFFFFFFF, so a size above 0xFFFFFFFF silently
 wraps. The parser then skips the wrong number of data blocks and interprets attacker-controlled file
 content as the next TAR header, which lets a crafted archive inject entries that PharData reports and
 extracts as if they were genuine. (CVE-2026-6103)

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-2026-6103

Plugin Details

Severity: Low

ID: 476621

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: 1.2

Percentile: 0.01

CVSS v2

Risk Factor: Low

Base Score: 1.7

Temporal Score: 1.3

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

CVSS Score Source: CVE-2026-6103

CVSS v3

Risk Factor: Low

Base Score: 3.3

Temporal Score: 3

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

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

Vulnerability Information

Exploit Available: true

Exploit Ease: Exploits are available

Patch Publication Date: 10/22/2026

Vulnerability Publication Date: 9/22/2026

Reference Information

CVE: CVE-2026-6103