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CVE-2026-18886 is a critical improper access control vulnerability in the ServiceNow AI Platform's System Configuration Image Upload Processor. Insufficient authorization enforcement can allow an unauthenticated attacker, under certain circumstances, to create or modify ServiceNow instance data outside intended permission boundaries. The resulting unauthorized data manipulation can be leveraged for privilege escalation.
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What it means. What to do now. Patch path, mitigations, and the assume-compromise checklist.
What an attacker gets, and what they’ve been doing with it.
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Patch, then assume compromise.
No public exploits tracked yet. Mallory keeps watching.
No public exploit code observed for this vulnerability.
Products and vendors Mallory has correlated with this vulnerability. Open in Mallory to drill down to specific CPE configurations and version ranges.
Vendor-confirmed product mapping. Mallory continuously reconciles this list against your asset inventory.
13 sources tracked across advisories, community write-ups, and news. New activity surfaces here as Mallory finds it.
Critical improper-access-control vulnerability in the ServiceNow system configuration image upload processor. It may permit unauthorized data creation or modification and privilege escalation.
A critical improper-access-control vulnerability in ServiceNow's system configuration image upload processor that could allow an unauthenticated attacker to modify or create instance data and potentially escalate privileges.
A CVSS 10.0 improper-access-control flaw in the ServiceNow AI Platform system-configuration image-upload processor. An unauthenticated attacker could create or modify instance data and escalate privileges.
A maximum-severity ServiceNow AI Platform code-injection vulnerability that enables privilege escalation. It is exploitable by unauthenticated attackers in low-complexity attacks without user interaction.
Query your assets running an affected version, and investigate the blast radius.
Every observed campaign linking this CVE to a named adversary.
Malware families riding this exploit, with evidence and IOCs.
YARA, Sigma, Snort, and vendor rules, auto-deployed to your SIEM.
Cross-references every affected SKU, including bundled OEM variants.
Community discussion across Reddit, Mastodon, and other social sources.