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SCA: security update for tar (GHSA-vmf3-w455-68vh)

medium Tenable Cloud Security Plugin ID 443204

Description

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

 - node-tar is a full-featured Tar for Node.js. Prior to 7.5.16, tar (node-tar) applies a PAX extended
 header's size= record (and other PAX overrides) to the next header entry of any type, including
 intermediary metadata headers such as a GNU long-name (L) or long-link (K) entry. Per POSIX pax, a PAX
 extended header (x) describes the next file entry, not the intermediary extension headers that may sit
 between the x header and the file it annotates. Because node-tar lets the PAX size override the byte
 length of an intervening L/K/x header, an attacker can desynchronize node-tar's stream cursor relative to
 every other mainstream tar implementation (GNU tar, libarchive/bsdtar, Python tarfile, and the now-fixed
 tar-rs / astral-tokio-tar). The result is a tar parser interpretation differential (CWE-436): a single
 crafted archive yields a different set of members under node-tar than under the reference tar tools. An
 attacker can use this to hide a member from one parser while it is visible to another, which defeats
 security tooling whose scanner and extractor disagree on archive contents (e.g. a malware/secret scanner
 that lists entries with one library while a downstream step extracts with another) This vulnerability is
 fixed in 7.5.16. (CVE-2026-53655)

Solution

Update the tar library and its related packages to version 7.5.16 or later.

See Also

https://github.com/advisories/GHSA-vmf3-w455-68vh

Plugin Details

Severity: Medium

ID: 443204

Version: Revision 1.6

Type: Local

Family: SCA Checks

Published: 6/15/2026

Updated: 7/6/2026

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

Risk Information

VPR

Risk Factor: Low

Score: 3

Percentile: 23.76

Vendor

Vendor Severity: Medium

CVSS v2

Risk Factor: Medium

Base Score: 4.9

Temporal Score: 3.8

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

CVSS Score Source: CVE-2026-53655

CVSS v3

Risk Factor: Medium

Base Score: 5.5

Temporal Score: 5

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

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

CVSS v4

Risk Factor: Medium

Base Score: 6.9

Threat Score: 5.5

Threat Vector: CVSS:4.0/E:P

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

Vulnerability Information

Exploit Available: true

Exploit Ease: Exploits are available

Patch Publication Date: 6/15/2026

Vulnerability Publication Date: 6/15/2026

Reference Information

CVE: CVE-2026-53655

cwe: CWE-436