---
id: CVE-2026-112061
title: librtmp (RTMPDump) through 2.6 Heap Out-of-Bounds Read via AMFProp_Decode
summary: >-
  librtmp (RTMPDump) through 2.6 contains a heap out-of-bounds read
  vulnerability in AMFProp_Decode that reads an AMF0 strict-array element count
  before checking that four bytes remain. A malicious RTMP server or man in the
  middle can send…
severity: medium
cvss: 4.3
cvssVector: 'CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:L'
cvssSource: cna
cwe:
  - CWE-125
vendor: RTMPDump
product: librtmp
affected:
  - librtmp <= 2.6
published: '2026-10-18'
updated: '2026-10-18'
sourceUpdated: '2026-10-18T12:19:51.237Z'
source: CVEORG
sourceUrl: 'https://www.cve.org/CVERecord?id=CVE-2026-112061'
references:
  - url: 'https://hackmd.io/@haindpwn/librtmp-amf3-decode-and-strict-array-oob'
  - url: >-
      https://git.ffmpeg.org/gitweb/rtmpdump.git/blob/138fdb258d9fc26f1843fd1b891180416c9dc575:/librtmp/amf.c
  - url: 'https://rtmpdump.mplayerhq.hu/'
  - url: >-
      https://www.vulncheck.com/advisories/librtmp-rtmpdump-through-2.6-heap-out-of-bounds-read-via-amfprop-decode
    label: >-
      VulnCheck Advisory: librtmp (RTMPDump) through 2.6 Heap Out-of-Bounds Read
      via AMFProp_Decode
tags:
  - cve.org
ingestedAt: '2026-10-18T12:41:54.057Z'
---

## Overview

librtmp (RTMPDump) through 2.6 contains a heap out-of-bounds read vulnerability in AMFProp_Decode that reads an AMF0 strict-array element count before checking that four bytes remain. A malicious RTMP server or man in the middle can send an AMF0 body ending with a strict-array type byte and fewer than four trailing bytes to crash the client.

## Affected

- `librtmp <= 2.6`

## Remediation

Refer to the linked advisories for vendor-supplied fixes and affected version ranges.