CVE-2026-82375 Apache Software Foundation CVE debrief

Who should care

Defenders of Apache Roller installations should assess exposure and upgrade to Apache Roller 6.1.6 or later to prevent SSRF attacks. Operators, platform administrators, vulnerability management teams, and security teams should review the vulnerability and take necessary actions to protect their systems.

Why it matters

CVE-2026-82375 is a high-severity SSRF vulnerability in Apache Roller 6.1.5 that allows authenticated users to cause outbound HTTP requests to attacker-chosen destinations. Defenders should upgrade to Apache Roller 6.1.6 or later to prevent SSRF attacks. The vulnerability requires verification of affected versions and remediation efforts.

• Potential for unauthorized outbound HTTP requests
• Exposure of loopback and private-network addresses
• Disclosure of response status, content type, and length

Technical summary

CVE-2026-82375 is a Server-Side Request Forgery (SSRF) vulnerability in Apache Roller 6.1.5. An authenticated user with entry-editing rights can cause outbound HTTP requests to attacker-chosen destinations through legacy outbound Trackback and entry enclosure handling. The vulnerability requires verification of affected versions and remediation efforts. No non-default server configuration is required, and the default empty Trackback allow-list permits all destinations. Requests can reach loopback and private-network addresses, while enclosure handling exposes response status, content type, and length.

Defensive priority

Upgrade to Apache Roller 6.1.6 or later to prevent SSRF attacks.

Recommended defensive actions

• Upgrade to Apache Roller 6.1.6 or later
• Restrict Trackback and enclosure handling
• Monitor for suspicious outbound HTTP requests
• Review compensating controls for exposed systems while remediation is scheduled and verified
• Check relevant monitoring, detection, and logs for exposed assets that need extra review
• Track exceptions, retest remediated assets, and close the item only after evidence is documented
• Confirm whether affected product deployments exist in managed environments and assign an owner for follow-up

Evidence notes

CVE Program and NVD records confirm SSRF vulnerability in Apache Roller 6.1.5. The CVE record was published on 2026-09-28T08:16:41.170Z and has not been modified since then. The NVD entry is currently Received. Evidence limits are based on CVE Program and NVD records, with no additional information available. Defenders should verify affected versions and assess exposure.

Sources and references

Methodology and review provenance

AI-assisted synthesis based on stored public vulnerability evidence. System validation, approval state, and publication status do not by themselves establish human review of this revision. PatchSiren helps prioritize defensive review and does not prove exposure or remediation on any system.