CVE-2016-3088: Apache ActiveMQ Improper Input Validation Vulnerability
Actively exploited. At least one CVE in this advisory is listed in the CISA Known Exploited Vulnerabilities catalog — exploitation has been observed in the wild. Treat remediation as urgent.
The Fileserver web application in Apache ActiveMQ allows remote attackers to upload and execute arbitrary files via an HTTP PUT followed by an HTTP MOVE request
CSIRTS triage
- What
- The Fileserver web application in Apache ActiveMQ allows remote attackers to upload and execute arbitrary files via an HTTP PUT followed by an HTTP MOVE request.
- Who is affected
- Deployments of Apache ActiveMQ are affected.
- Urgency
- Remediation is urgent due to active exploitation and critical severity.
- Action
- Apply the latest security updates from Apache.
AI-assisted analysis generated from the source advisory — verify against the original.
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Details
Original advisory: https://nvd.nist.gov/vuln/detail/CVE-2016-3088
Exploitation outlook
EPSS (FIRST.org) estimates each CVE’s probability of exploitation in the next 30 days — here is the CSIRTS.com read on those numbers.
- Exploitation confirmedCVE-2016-3088Already exploited in the wild (CISA KEV) — the prediction phase is over. Patch now. Riskier than 100% of all scored CVEs.
Referenced CVEs
| CVE | CSIRTS overview | External |
|---|---|---|
| CVE-2016-3088 | coverage & exploitation status | NVD · CVE.org |
Recent advisories for Apache ActiveMQ Improper
A cluster of recent advisories against the same product widens the attack surface — attackers routinely chain freshly published CVEs on one product, so review these together.
- mediumCVE-2026-52760: Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') vulnerabi…nvd · 2026-06-30
- highCVE-2026-49877: Improper Authorization vulnerability in Apache ActiveMQ. An authenticated low-privilege Web Co…nvd · 2026-06-30
- highCVE-2026-49434: Improper Input Validation vulnerability in Apache ActiveMQ Broker, Apache ActiveMQ, Apache Act…nvd · 2026-06-30
- highCVE-2026-49432: Improper Input Validation vulnerability in Apache ActiveMQ, Apache ActiveMQ All, Apache Active…nvd · 2026-06-30
- criticalexploitedCVE-2026-34197: Apache ActiveMQ Improper Input Validation Vulnerabilitycisa-kev · 2026-04-16
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