Goal Reached Thanks to every supporter — we hit 100%!

Goal: 1000 CNY · Raised: 1359 CNY

100%
Buy Us a Coffee

CVE-2026-91841— Networkmanager-vpnc: networkmanager-vpnc: incomplete fix for cve-2018-10900 allows root privilege escalation via ca-file path newline injection

Quick assessment

Affected
GNOME NetworkManager-vpnc
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

在 NetworkManager-vpnc（NetworkManager 的 VPN 插件）中发现了一个缺陷。本地非特权用户可以通过向 CA-File 路径注入换行符来利用此漏洞。该操作允许用户以 root 用户身份执行任意命令，从而导致本地权限提升。

CVSS 7.8 · High EPSS 0.19% · P8
Get alerts for future matching vulnerabilities Log in to subscribe

I. Basic Information for CVE-2026-91841

Vulnerability Information
Have questions about the vulnerability? See if Shenlong's analysis helps!
View Shenlong Deep Dive ↗

Although we use advanced large model technology, its output may still contain inaccurate or outdated information.Shenlong tries to ensure data accuracy, but please verify and judge based on the actual situation.

Vulnerability Title
Networkmanager-vpnc: networkmanager-vpnc: incomplete fix for cve-2018-10900 allows root privilege escalation via ca-file path newline injection
Source: CVE Program / CVE List V5
Vulnerability Description
A flaw was found in NetworkManager-vpnc, a VPN plugin for NetworkManager. A local unprivileged user can exploit this vulnerability by injecting a newline character into the CA-File path. This manipulation allows the user to execute arbitrary commands as the root user, leading to local privilege escalation.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Source: CVE Program / CVE List V5
Vulnerability Type
对CRLF序列的转义处理不恰当(CRLF注入)
Source: CVE Program / CVE List V5

Affected Products

Vendor Product Affected Versions CPE Subscribe
GNOME NetworkManager-vpnc 0 ~ * -

II. Public POCs for CVE-2026-91841

# POC Description Source Link Shenlong Link
AI-Generated POC Premium

No public POC found.

Login to generate AI POC

III. Intelligence Information for CVE-2026-91841

请登录查看更多情报信息。

Other References for CVE-2026-91841 (3)

Same Patch Batch · GNOME · 2026-09-25 · 6 CVEs total

CVE-2026-91837 7.8 HIGH Networkmanager-iodine: networkmanager-iodine: local privilege escalation to root via names
CVE-2026-91838 7.8 HIGH Networkmanager-sstp: networkmanager-sstp: local privilege escalation to root via shell inj
CVE-2026-91840 7.8 HIGH Networkmanager-vpnc: networkmanager-vpnc: local privilege escalation to root via newline i
CVE-2026-91839 7.8 HIGH Networkmanager-fortisslvpn: networkmanager-fortisslvpn: local privilege escalation to root
CVE-2026-97222 5.5 MEDIUM Gnumeric: gnumeric: heap use-after-free when opening a malformed workbook

IV. Related Vulnerabilities

Same product: NetworkManager-vpnc
Same vendor: GNOME
Same weakness: CWE-93

V. Comments for CVE-2026-91841

No comments yet

Leave a comment