CVE-2026-82821 FLVMeta AMF Object Parsing amf.c amf_object_get null pointer dereference
A remote attacker can cause a denial of service via null pointer dereference in FLVMeta's AMF object parsing.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- A user has to click or open something
- Fix
- None listed
What is CVE-2026-82821?
CVE-2026-82821 is a medium-severity vulnerability in FLVMeta, published on 31 Aug 2026. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link.
Official description
A vulnerability was determined in FLVMeta up to 1.2.2. Affected by this vulnerability is the function amf_object_get of the file src/amf.c of the component AMF Object Parsing. This manipulation causes null pointer dereference. The attack may be initiated remotely. The exploit has been publicly disclosed and may be utilized. Patch name: 52642f7dfb76ec7334016622dde60b1ae963d79b. To fix this issue, it is recommended to deploy a patch. The project maintainer doubts the security impact: "While I acknowledged the bugs and provided fixes, I have yet to see any way to exploit these alleged vulnerabilities."
Which versions are affected by CVE-2026-82821?
How do I fix CVE-2026-82821?
No fix has been published for CVE-2026-82821 yet. Limit exposure of the affected software until one is available.
Is CVE-2026-82821 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-82821 exists.
Sources
Also known as DEBIAN-CVE-2026-82821, GHSA-vxp7-p2wj-pfx4, UBUNTU-CVE-2026-82821.