CVE-2026-8503

Katalog CVE

CVSS 6.5 · Medium EPSS 0,39%

Kerentanan Use of Cryptographically Weak Pseudo-Random Number Generator (PRNG) pada guimard apache. Skor CVSS 3.1 6.5 (Medium) menurut CISA ADP.

Deskripsi (NVD)

Apache::Session::Generate::SHA256 versions before 1.3.19 for Perl create insecure session ids. Apache::Session::Generate::SHA256 generated session ids insecurely. The default session id generator returns a SHA-256 hash of the built-in rand() function, the epoch time, and the PID, that is hashed again. These are predictable, low-entropy sources. Predicable session ids could allow an attacker to gain access to systems. Note that version 1.3.19 has a fallback without warning to use insecure session generation method if the call to Crypt::URandom::urandom fails. However, this is unlikely as Crypt::URandom is a hardcoded requirement of the module. This issue is similar to CVE-2025-40931 for Apache::Session::Generate::MD5.

Rincian

Terbit di NVD

15 Mei 2026

Terakhir diubah

17 Juni 2026

Status NVD

Analyzed

CVSS 3.1

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

Jenis kelemahan (CWE)

CWE-338: Use of Cryptographically Weak Pseudo-Random Number Generator (PRNG)
CWE-340: Generation of Predictable Numbers or Identifiers

EPSS (30 hari)

0,39% peluang dieksploitasi; lebih tinggi dari 31,3% CVE lain

Produk dan versi terdampak

> Data dari konfigurasi CPE di NVD.

Referensi dan perbaikan

• https://github.com/LemonLDAPNG/Apache-Session-Browseable/commit/cc915cbbd266776eec3dd8bf4748b15fa827dbd0.patch patch
• https://www.cve.org/CVERecord?id=CVE-2025-40931 advisory pihak ketiga
• https://www.cve.org/CVERecord?id=CVE-2025-40932 advisory pihak ketiga
• https://metacpan.org/release/GUIMARD/Apache-Session-Browseable-1.3.19/changes release notes
• https://metacpan.org/release/GUIMARD/Apache-Session-Browseable-1.3.19/diff/GUIMARD/Apache-Session-Browseable-1... product