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Security News — 18 October 2026

A daily, automatically-compiled digest of the cyber security stories that broke in the last 24 hours, drawn from 5 trusted feeds. Each entry is a short excerpt — follow the link to read the full article at its original publisher. Compiled 18 October 2026 · 8 items.

Top priorities today

  1. CVE-2026-111998 — CRITICAL (CVSS 9.3) Critical CVEDatabase - Critical CVEs
  2. ConnectWise Suspends Cloud Backup After Attackers Compromise Microsoft 365 Tenants The Hacker News
  3. CVE-2026-112111 — MEDIUM (CVSS 5.1) Medium CVEDatabase - Recent CVEs

Urgent Vulnerabilities 1

Actively exploited, critical, or high-severity flaws — patch or mitigate first.

CVEDatabase - Critical CVEs18 Oct

CVE-2026-111998 — CRITICAL (CVSS 9.3)

CriticalCVSS 9.3

CVSS 9.3 CRITICAL Vanus 0.8.0 through 0.9.0 contains a default credentials vulnerability that allows unauthenticated remote attackers to gain cluster-admin access by using the hardcoded admin token. Attackers can send the fixed Bearer toke…

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Other CVEs 4

Lower-severity or unconfirmed-exploitation vulnerabilities.

CVEDatabase - Recent CVEs18 Oct

CVE-2026-112111 — MEDIUM (CVSS 5.1)

MediumCVSS 5.1
Impact
Cross-site scripting
Audience
WordPress admins
Action
Patch when a fix is available; monitor exposure

CVSS 5.1 MEDIUM The Bootstrap Shortcodes plugin for WordPress before 3.4.6 is vulnerable to stored XSS via the id attribute of the [bs_tcontent] shortcode. The bs_tcontent() shortcode handler in inc/bs_tabs.php emits the id attribute value…

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CVEDatabase - Recent CVEs18 Oct

CVE-2026-112112 — LOW (CVSS 2.3)

LowCVSS 2.3

CVSS 2.3 LOW An IPv6 FlowSpec validation bypass in the CZ.NIC BIRD Internet Routing Daemon allows an established BGP peer to inject FlowSpec rules matching destinations outside the address space authorized by the unicast-route validation p…

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CVEDatabase - Recent CVEs18 Oct

CVE-2026-112029 — LOW (CVSS 1.1)

LowCVSS 1.1
Audience
Linux/server admins
Action
Patch when a fix is available; monitor exposure

CVSS 1.1 LOW A vulnerability has been found in diem-project diem up to 5.1.3. This affects an unknown part of the file lib/model/doctrine/PluginDmUser.class.php of the component SHA1 Handler. Such manipulation of the argument salt/password…

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CVEDatabase - Recent CVEs18 Oct

CVE-2026-112028 — MEDIUM (CVSS 5.5)

MediumCVSS 5.5

CVSS 5.5 MEDIUM A flaw has been found in light0011 cms c774dce31c6df0055568a8d5c53d964d99be199d/f72cf46f601efb2a0618c3814cc2f61380b38930. Affected by this issue is some unknown functionality of the file App/Home/Controller/VoteController.c…

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Threat Activity 1

Malware, campaigns and adversary tradecraft.

Breaches & Incidents 1

Ransomware, data breaches and supply-chain events.

Research & Detection 1

Detection engineering, tooling and defensive analysis.

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