CVE-2026-39894

Katalog CVE

CVSS 2.5 · Low EPSS 0,14%

Kerentanan Use of Function with Inconsistent Implementations pada cacti. Skor CVSS 3.1 2.5 (Low) menurut NVD.

Deskripsi (NVD)

Cacti is an open source performance and fault management framework. In versions 1.2.30 and below, the locale-dependent decimal formatting in rrdtool_function_update() can corrupt RRDtool metric values. The rrdtool_function_update() function checks metric values with is_numeric() and concatenates them into the RRDtool update command via PHP string interpolation. PHP's string cast of floats is locale-sensitive: if LC_NUMERIC uses comma as decimal separator (e.g., de_DE), a value of 1.5 becomes "1,5". RRDtool expects . as decimal separator, causing metric data to shift into wrong columns or be silently dropped. No setlocale() reset is present in the update path. This causes a data integrity issue, but is not remotely exploitable; it requires server locale misconfiguration. The issue has been fixed in version 1.2.31.

Rincian

Terbit di NVD

24 Juni 2026

Terakhir diubah

25 Juni 2026

Status NVD

Analyzed

CVSS 3.1

2.5 (Low), sumber NVD
CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:L/A:N · uraikan di kalkulator

Jenis kelemahan (CWE)

CWE-474: Use of Function with Inconsistent Implementations

EPSS (30 hari)

0,14% peluang dieksploitasi; lebih tinggi dari 2,8% CVE lain

Produk dan versi terdampak

> Data dari konfigurasi CPE di NVD.

Referensi dan perbaikan

• https://github.com/Cacti/cacti/security/advisories/GHSA-23g4-vf2j-94w4 advisory vendor
• https://github.com/Cacti/cacti/commit/d2a698854956e9e4e53da9eab5b5719ae40e6893 patch
• https://github.com/Cacti/cacti/issues/7011 issue tracking · patch