CVE-2026-33165 · cross-distro fix matrix

CVE-2026-33165: libde265 is an open source implementation of the h.265 video codec. Prior to version 1.0.17, a crafted HEVC bitstream causes an out-of-bounds heap write confirmed by AddressSanitizer. The trigger is a stale ctb_info.log2unitSize after an SPS change where PicWidthInCtbsY and PicHeightInCtbsY stay con

Affects 2 Linux releases across 2 (distro × package) combinations.

Fix per ecosystem

Each block below is a distro release where CVE-2026-33165 has a known fix. Run the listed command on that distro to remediate.

Debian bullseye

Source: Debian Security Tracker

libde265→ fixed in1.0.11-0+deb11u4urgency: not yet assigned
```
sudo apt-get install --only-upgrade -y libde265
```

Alpine edge

Source: Alpine secdb

libde265→ fixed in1.0.18-r0

apk update && apk add --upgrade libde265

Are YOU affected by CVE-2026-33165?

5-second check on your actual server. Reads /etc/os-release, uname -r, and the distro's package manager; matches against this same cross-source index live.

curl https://mindsparkstack.com/scan.sh | bash

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