Improper Input Validation — CVE-2026-48277, CVE-2026-48281, CVE-2026-48315.
Release Date: 6th July 2026
Impact : HIGH / CRITICAL
TLP Rating: Clear 
The Department of Communications and Digital Transformation (DCDT) through CERT Vanuatu (CERTVU), provides the following advisory.
This alert is relevant to Organizations and System/Network administrators that utilize the above products. This alert is intended to be understood by technical users and systems administrators.
What is it?
ColdFusion doesn't adequately sanitize attacker-supplied input in certain request paths.
What are the systems affected?
ColdFusion 2025 (Update 9 and earlier), ColdFusion 2023 (Update 20 and earlier).
What does this mean?
How it's exploited:
- CVE-2026-48277 / CVE-2026-48281: A remote, unauthenticated attacker sends specially crafted input to a vulnerable component; the lack of sanitization allows that input to be processed in a way that leads to arbitrary code execution. No user interaction needed.
- CVE-2026-48315: Differs from the other two — despite being an "input validation" issue, exploitation requires a victim to open a malicious file, and success can lead to privilege escalation (described in some vendor writeups as enabling script injection that elevates the attacker's access within a session).
Mitigation process
CERTVU recommends the following:
- Patch immediately: Update to ColdFusion 2025 Update 10 or ColdFusion 2023 Update 21 as applicable. Given four CVEs in this batch are CVSS 10.0 and unauthenticated, treat this as urgent — Adobe itself has flagged that AI-assisted vulnerability research is compressing exploit timelines from days to hours.
- Reduce exposure now, patch after:
- If file upload functionality is enabled anywhere in your ColdFusion deployment, verify authentication is enforced on the upload endpoint and consider disabling uploads until patched.
- Restrict network access to ColdFusion admin/management interfaces to trusted internal networks or VPN.
- Review outbound request capability from ColdFusion (relevant to the SSRF flaw) and restrict where the server itself can reach.
- The 48315 case means user-awareness training (not opening untrusted ColdFusion-related files/links) is a relevant compensating control alongside patching.
References
- https://www.cisa.gov/news-events/bulletins/sb26-187
- https://www.cve.org/CVERecord?id=CVE-2026-48277
- https://www.cve.org/CVERecord?id=CVE-2026-48281
- https://www.cve.org/CVERecord?id=CVE-2026-48315
- Download advisory (English): Improper Input Validation — CVE-2026-48277, CVE-2026-48281, CVE-2026-48315.