CVE-2026-88350CWE-190

CVE-2026-88350

Medium · published September 23, 2026

CVSS v3.1
6.2
EPSS
0%
Percentile
1.7
In the wild
Unconfirmed
What it is

An integer overflow vulnerability exists in MPack 1.1.1 in mpack_node_cstr_alloc() and mpack_node_utf8_cstr_alloc().

The record
Technical detail
CVSS v3.1
6.2 · MEDIUM
Vector
CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
CVSS v4.0
Not supplied
EPSS
0.00120 · 1.7th percentile
Weakness
CWE-190 · Integer Overflow or Wraparound
Published
2026-09-23T00:17Z
References (2)
https://github.com/ludocode/mpack/commit/3d54d1215bdb5478d3ddecaf85884c58b382cd9b · [email protected]https://github.com/ludocode/mpack/issues/124 · [email protected]
EPSS history
Timeline
  • 24 SEP 03:25Z
    EPSS moved — → 0%
    epss
  • 22 SEP 00:00Z
    An integer overflow vulnerability exists in MPack 1.1.1 in mpack_node_cstr_alloc() and mpack_node_utf8_cstr_alloc()
    cvelistv5