Detections
Analytics

Echo: jq: security update to 1.7.1-6+deb13u1+e2

medium Tenable Cloud Security Plugin ID 463679

Description

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

 - jq is a command-line JSON processor. Commits before 6374ae0bcdfe33a18eb0ae6db28493b1f34a0a5b contain a
 vulnerability where CLI input parsing allows validation bypass via embedded NUL bytes. When reading JSON
 from files or stdin, jq uses strlen() to determine buffer length instead of the actual byte count from
 fgets(), causing it to truncate input at the first NUL byte and parse only the preceding prefix. This
 enables an attacker to craft input with a benign JSON prefix before a NUL byte followed by malicious
 trailing data, where jq validates only the prefix as valid JSON while silently discarding the suffix.
 Workflows relying on jq to validate untrusted JSON before forwarding it to downstream consumers are
 susceptible to parser differential attacks, as those consumers may process the full input including the
 malicious trailing bytes. This issue has been patched by commit 6374ae0bcdfe33a18eb0ae6db28493b1f34a0a5b.
 (CVE-2026-33948)

Solution

Update the jq library and its related packages to version 1.7.1-6+deb13u1+e2 or later.

See Also

https://advisory.echohq.com/cve/CVE-2026-33948

Plugin Details

Severity: Medium

ID: 463679

Version: Revision 1.2

Type: Local

Published: 10/2/2026

Updated: 10/5/2026

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: Medium

Base Score: 5

Temporal Score: 3.9

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

CVSS Score Source: CVE-2026-33948

CVSS v3

Risk Factor: Medium

Base Score: 5.3

Temporal Score: 4.8

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

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

CVSS v4

Risk Factor: Medium

Base Score: 6.3

Threat Score: 2.9

Threat Vector: CVSS:4.0/E:P

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

Vulnerability Information

Exploit Available: true

Exploit Ease: Exploits are available

Patch Publication Date: 4/15/2026

Vulnerability Publication Date: 4/13/2026

Reference Information

CVE: CVE-2026-33948