CVE-2026-112060 RTMPDump CVE debrief

Who should care

Defenders responsible for RTMPDump and librtmp deployments should assess exposure and prioritize verification and updates to prevent potential heap corruption and information leaks.

Why it matters

CVE-2026-112060 is a medium-severity vulnerability in librtmp of RTMPDump through 2.6, allowing for out-of-bounds read and heap out-of-bounds write. Defenders should verify and update librtmp, monitor for malicious traffic, and restrict RTMP server access.

• Heap memory corruption and potential information leaks.
• Verification of librtmp versions and updates is necessary.
• Network monitoring for malicious RTMP traffic is recommended.
• Restrict access to RTMP servers and ensure proper configuration.

Technical summary

The librtmp library in RTMPDump through 2.6 is vulnerable to an out-of-bounds read and heap out-of-bounds write due to the AMF3_Decode function ignoring AMF3 property decode failures. This vulnerability can be exploited by malicious RTMP servers or man-in-the-middle attackers to send oversized AMF3 string lengths, potentially corrupting heap memory and leaking heap bytes. The vulnerability can be triggered by sending malicious RTMP traffic, which can lead to heap memory corruption and information leaks. Defenders should prioritize verifying and updating librtmp in RTMPDump to prevent potential heap corruption and information leaks.

Defensive priority

Defenders should prioritize verifying and updating librtmp in RTMPDump to prevent potential heap corruption and information leaks.

Recommended defensive actions

• Verify and update librtmp in RTMPDump to the latest version.
• Implement network monitoring to detect potential malicious RTMP traffic.
• Restrict access to RTMP servers and ensure they are properly configured.
• 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

The CVE record and NVD entry provide details on the vulnerability in librtmp of RTMPDump through 2.6. However, specific details about affected or fixed versions are not provided in the corpus. The librtmp library is used in various media streaming applications, and its vulnerability can be exploited by malicious RTMP servers or man-in-the-middle attackers. Defenders should verify and update librtmp in RTMPDump to the latest version and monitor for malicious RTMP traffic. The CVE record and NVD entry provide evidence of the potential

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.