CVE-2026-86318CWE-119CWE-121

CVE-2026-86318

Medium · published September 7, 2026

CVSS v3.1
5.3
EPSS
1%
Percentile
54.7
In the wild
Unconfirmed
What it is

A flaw has been found in java-json-tools json-patch up to 1.13. Affected is the function JsonMergePatch.fromJson of the file JsonMergePatchDeserializer.java. Executing a manipulation can lead to stack-based buffer overflow. The attack may be performed from remote. The exploit has been published and may be used. The project was informed of the problem early through an issue report but has not responded yet.

The record
Technical detail
CVSS v3.1
5.3 · MEDIUM
Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L
CVSS v4.0
6.9 · CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:P
EPSS
0.00758 · 54.7th percentile
Weaknesses
CWE-119 · Improper Restriction of Operations within the Bounds of a Memory Buffer; CWE-121 · Stack-based Buffer Overflow
Published
2026-09-07T19:17Z
References (6)
https://github.com/java-json-tools/json-patch/ · [email protected]https://github.com/java-json-tools/json-patch/issues/168 · [email protected]https://vuldb.com/cve/CVE-2026-86318 · [email protected]https://vuldb.com/submit/908319 · [email protected]https://vuldb.com/vuln/399509 · [email protected]https://vuldb.com/vuln/399509/cti · [email protected]
EPSS history
Timeline
  • 09 SEP 03:20Z
    EPSS moved — → 0%
    epss
  • 07 SEP 14:30Z
    java-json-tools json-patch JsonMergePatchDeserializer.java JsonMergePatch.fromJson stack-based overflow
    cvelistv5