CVE-2026-86231

Katalog CVE

CVSS 3.7 · Low EPSS 0,42%

Kerentanan Improper Validation of Certificate Expiration. Skor CVSS 3.1 3.7 (Low) menurut vuldb.com.

Deskripsi (NVD)

A security flaw has been discovered in mwiede jsch up to 2.28.5. Affected is the function getRevokedKeys of the file src/main/java/com/jcraft/jsch/KnownHosts.java. Performing a manipulation of the argument known_hosts results in improper check for certificate revocation. The attack is possible to be carried out remotely. The attack is considered to have high complexity. The exploitability is told to be difficult. The exploit has been released to the public and may be used for attacks. Upgrading to version 2.28.6 is able to address this issue. The patch is named 194a2f76a5c0f1c3f778565be3fd66bcafc42d23. You should upgrade the affected component.

Rincian

Terbit di NVD

6 September 2026

Terakhir diubah

11 September 2026

Status NVD

Deferred

CVSS 3.1

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

Jenis kelemahan (CWE)

CWE-298: Improper Validation of Certificate Expiration
CWE-299: Improper Check for Certificate Revocation

EPSS (30 hari)

0,42% peluang dieksploitasi; lebih tinggi dari 34,4% CVE lain

Produk dan versi terdampak

NVD belum mencantumkan data produk (CPE) untuk CVE ini. Produk yang terdampak biasanya disebut di deskripsi dan di advisory vendor pada daftar referensi.

Referensi dan perbaikan

• https://github.com/mwiede/jsch/
• https://github.com/mwiede/jsch/commit/194a2f76a5c0f1c3f778565be3fd66bcafc42d23
• https://github.com/mwiede/jsch/issues/1091
• https://github.com/mwiede/jsch/pull/1098
• https://github.com/mwiede/jsch/releases/tag/jsch-2.28.6
• https://vuldb.com/cve/CVE-2026-86231
• https://vuldb.com/submit/898485
• https://vuldb.com/vuln/399388
• https://vuldb.com/vuln/399388/cti