Detections
Analytics

Echo: cjson: security update to 1.7.18-3.1+deb13u1+e2

high Tenable Cloud Security Plugin ID 472823

Description

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

 - cJSON versions 1.5.0 through 1.7.19 contain an incorrectly-resolved name or reference vulnerability in the
 decode_pointer_inplace() function within cJSON_Utils.c that allows unauthenticated attackers to cause JSON
 Patch operations to target wrong object keys by supplying crafted JSON Pointer escape sequences (~0 or ~1)
 in patch paths. Attackers can submit malicious RFC 6902 JSON Patch input to applications using
 cJSONUtils_ApplyPatches() or cJSONUtils_ApplyPatchesCaseSensitive() to silently corrupt data or delete
 unintended keys, potentially bypassing authorization controls in applications that rely on JSON Patch for
 access-controlled data modification. (CVE-2026-29036)

Solution

Update the cjson library and its related packages to version 1.7.18-3.1+deb13u1+e2 or later.

See Also

https://advisory.echohq.com/cve/CVE-2026-29036

Plugin Details

Severity: High

ID: 472823

Version: Revision 1.1

Type: Local

Published: 10/5/2026

Updated: 10/5/2026

Risk Information

VPR

Risk Factor: Low

Score: 3

Percentile: 23.67

CVSS v2

Risk Factor: High

Base Score: 7.8

Temporal Score: 5.8

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

CVSS Score Source: CVE-2026-29036

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:H/A:N

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

CVSS v4

Risk Factor: High

Base Score: 8.7

Threat Score: 6.6

Threat Vector: CVSS:4.0/E:U

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

Vulnerability Information

Exploit Ease: No known exploits are available

Patch Publication Date: 8/16/2026

Vulnerability Publication Date: 8/11/2026

Reference Information

CVE: CVE-2026-29036