PT-2026-43396 · Maxkb · Maxkb

Fushuling · CVE-2026-42335 · Published 2026-05-26 · Updated 2026-05-27

Positive Technologies (AI Summary)

CVSS v4.0

6.3

Medium

Base vector

AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:N/SC:H/SI:L/SA:N

Name of the Vulnerable Software and Affected Versions MaxKB versions prior to 2.8.1

Description An issue exists in the OSS file service URL fetch endpoint "chat/api/oss/get url" where inconsistent URL parsing between the urlparse validation function and the requests HTTP client allows for a server-side request forgery (SSRF) bypass. This enables attackers to access internal network services.

Recommendations Update to version 2.8.1.

Exploit

Fix

SSRF

Weakness Enumeration

CWE-918

Related Identifiers

CVE-2026-42335

GHSA-R8HF-MWWR-HXGC

Affected Products

Maxkb

References · 5

• 🔥 https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/42xxx/CVE-2026-42335.json · Exploit
• https://nvd.nist.gov/vuln/detail/CVE-2026-42335 · Security Note
• https://osv.dev/vulnerability/CVE-2026-42335 · Vendor Advisory
• https://github.com/1Panel-dev/MaxKB/security/advisories/GHSA-r8hf-mwwr-hxgc · Note
• https://t.me/cveNotify/164920 · Telegram Post