CVE-2026-12528

Katalog CVE

CVSS 5.4 · Medium EPSS 0,23%

Kerentanan Out-of-bounds Write pada redhat directory server, redhat 389 directory server +1 lainnya. Skor CVSS 3.1 5.4 (Medium) menurut NVD.

Deskripsi (NVD)

A flaw was found in 389 Directory Server in the __aclp__normalize_acltxt() function of aclparse.c. A malformed ACI (Access Control Instruction) string can trigger heap-buffer-overflow writes and reads during ACI parsing. The function fails to validate that the ACI keyword has sufficient length after whitespace stripping, leading to a 1-byte out-of-bounds write and subsequent out-of-bounds reads. An authenticated user with write access to the aci attribute could send a crafted ACI value to silently corrupt heap memory in the directory server process.

Rincian

Terbit di NVD

17 Juni 2026

Terakhir diubah

28 Juni 2026

Status NVD

Analyzed

CVSS 3.1

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

Jenis kelemahan (CWE)

CWE-787: Out-of-bounds Write

EPSS (30 hari)

0,23% peluang dieksploitasi; lebih tinggi dari 12,3% CVE lain

Produk dan versi terdampak

> Data dari konfigurasi CPE di NVD.

Referensi dan perbaikan

• https://access.redhat.com/security/cve/CVE-2026-12528 advisory vendor
• https://bugzilla.redhat.com/show_bug.cgi?id=2489835 issue tracking · advisory vendor
• https://github.com/389ds/389-ds-base/pull/7542 patch