What’s Vulnerable › Vulnerabilities

CVE-2026-112061: librtmp (RTMPDump) through 2.6 Heap Out-of-Bounds Read via AMFProp_Decode

• Severity: medium (CVSS 4.3 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.2% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2026-10-18 · updated 2026-10-19
• Weakness: CWE-125

Description

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 products

• RTMPDump librtmp: through 2.6

References

• https://git.ffmpeg.org/gitweb/rtmpdump.git/blob/138fdb258d9fc26f1843fd1b891180416c9dc575:/librtmp/amf.c
• https://hackmd.io/@haindpwn/librtmp-amf3-decode-and-strict-array-oob
• https://rtmpdump.mplayerhq.hu/
• https://www.vulncheck.com/advisories/librtmp-rtmpdump-through-2.6-heap-out-of-bounds-read-via-amfprop-decode

Get alerted when CVE-2026-112061 or the next vulnerability affects your stack