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CVE-2026-112060— librtmp (RTMPDump) through 2.6 Heap Out-of-Bounds Write via AMF3_Decode

Quick assessment

Affected
RTMPDump librtmp
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

RTMPDump 2.6 及以下版本中的 librtmp 组件存在越界读取和堆越界写入漏洞，原因是 AMF3_Decode 函数忽略了 AMF3 属性解码失败的情况。恶意的 RTMP 服务器或中间人攻击者可发送超长的 AMF3 字符串长度，配合启用 DecodeTEA 选项时，会导致堆内存被破坏并泄露堆字节数据。

CVSS 6.4 · Medium

Possible ATT&CK Techniques 1 AI

T1190 · Exploit Public-Facing Application

Affected Version Matrix 1

VendorProduct Version RangeStatus
RTMPDump librtmp ≤ 2.6 affected
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I. Basic Information for CVE-2026-112060

Vulnerability Information
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Vulnerability Title
librtmp (RTMPDump) through 2.6 Heap Out-of-Bounds Write via AMF3_Decode
Source: CVE Program / CVE List V5
Vulnerability Description
librtmp in RTMPDump through 2.6 contains an out-of-bounds read and heap out-of-bounds write vulnerability because AMF3_Decode ignores AMF3 property decode failures. Malicious RTMP servers or man-in-the-middle attackers can send oversized AMF3 string lengths, and with the token option DecodeTEA corrupts heap memory and leaks heap bytes.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:L/I:L/A:H
Source: CVE Program / CVE List V5
Vulnerability Type
跨界内存写
Source: CVE Program / CVE List V5

Affected Products

Vendor Product Affected Versions CPE Subscribe
RTMPDump librtmp 0 ~ 2.6 -

II. Public POCs for CVE-2026-112060

# POC Description Source Link Shenlong Link
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III. Intelligence Information for CVE-2026-112060

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Vendor Advisories for CVE-2026-112060 (1)

Security Blog Posts for CVE-2026-112060 (1)

Vendor Pages for CVE-2026-112060 (1)

Other References for CVE-2026-112060 (1)

IV. Related Vulnerabilities

Same product: librtmp
Same vendor: RTMPDump
Same weakness: CWE-787

V. Comments for CVE-2026-112060

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