CVE-2026-18885
CVE-2026-18885 is a critical-severity vulnerability with a CVSS 4.0 base score of 10.0. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-94.
Key facts
- Severity: Critical (CVSS 4.0 base score 10.0)
- EPSS exploit prediction: 0% (36th percentile)
- Actively exploited: Not listed in CISA KEV
- Weakness: CWE-94
- Published:
- Last modified:
Description
ServiceNow has remediated a code injection vulnerability that was identified in the ServiceNow AI platform. This vulnerability could enable an unauthenticated user, in certain circumstances, to execute arbitrary code in the ServiceNow platform and gain access to, or modify, instance data beyond what was intended. ServiceNow deployed a security update to hosted instances and ServiceNow provided the update to our partners and self-hosted customers. We are not currently aware of malicious exploitation against ServiceNow instances. We recommend customers promptly apply appropriate updates or upgrade to a patched release if they have not already done so.
Frequently asked questions
- What is CVE-2026-18885?
- ServiceNow has remediated a code injection vulnerability that was identified in the ServiceNow AI platform. This vulnerability could enable an unauthenticated user, in certain circumstances, to execute arbitrary code in the ServiceNow platform and gain access to, or modify, instance data beyond what was intended. ServiceNow deployed a security update to hosted instances and ServiceNow provided the update to our partners and self-hosted customers. We are not currently aware of malicious exploitation against ServiceNow instances. We recommend customers promptly apply appropriate updates or upgrade to a patched release if they have not already done so.
- How severe is CVE-2026-18885?
- CVE-2026-18885 has a CVSS 4.0 base score of 10.0, rated critical severity.
- Is CVE-2026-18885 being actively exploited?
- It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (36th percentile), an estimate of the probability of exploitation in the next 30 days.
- How do I fix CVE-2026-18885?
- Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its critical severity, prioritise patching exposed systems.
- When was CVE-2026-18885 published?
- CVE-2026-18885 was published on 2026-08-27 and last updated on 2026-09-01.
References
Other CWE-94 (Code Injection) vulnerabilities
- CVE-2026-93603 — Critical (CVSS 10.0): vm2 through 3.12.0 (fixed in 3.12.1) does not correctly handle a nullish `this` receiver in the apply trap of its…
- CVE-2026-92937 — Critical (CVSS 10.0): vm2 3.11.6 is vulnerable to a sandbox escape leading to remote code execution in the host Node.js process. The fix for…
- CVE-2026-62104 — Critical (CVSS 10.0): Unauthenticated Remote Code Execution (RCE) in Migratico Lite <= 2.6.8 versions.
- CVE-2026-73456 — Critical (CVSS 10.0): Under certain circumstances on affected platforms running Arista EOS with gRPC Network Packet Sampling Interface…
- CVE-2026-73453 — Critical (CVSS 10.0): An unauthenticated P4Runtime (Programming Protocol-Independent Packet Processors Runtime) client can achieve arbitrary…
- CVE-2026-53710 — Critical (CVSS 10.0): MCP Context Forge is an AI gateway, registry, and proxy for MCP, A2A, REST, and gRPC APIs. Prior to 1.0.2, the…