CVE-2021-26260 · cross-distro fix matrix

CVE-2021-26260: An integer overflow leading to a heap-buffer overflow was found in the DwaCompressor of OpenEXR in versions before 3.0.1. An attacker could use this flaw to crash an application compiled with OpenEXR. This is a different flaw from CVE-2021-23215.

Affects 8 Linux releases across 8 (distro × package) combinations.

Fix per ecosystem

Each block below is a distro release where CVE-2021-26260 has a known fix. Run the listed command on that distro to remediate.

Debian bullseye

Source: Debian Security Tracker

openexr→ fixed in2.5.4-2+deb11u1urgency: not yet assigned
```
sudo apt-get install --only-upgrade -y openexr
```

Debian bookworm

Source: Debian Security Tracker

openexr→ fixed in2.5.7-1urgency: not yet assigned
```
sudo apt-get install --only-upgrade -y openexr
```

Debian trixie

Source: Debian Security Tracker

openexr→ fixed in2.5.7-1urgency: not yet assigned
```
sudo apt-get install --only-upgrade -y openexr
```

Alpine v3.20

Source: Alpine secdb

openexr→ fixed in3.1.1-r0
```
apk update && apk add --upgrade openexr
```

Alpine v3.21

Source: Alpine secdb

openexr→ fixed in3.1.1-r0
```
apk update && apk add --upgrade openexr
```

Alpine edge

Source: Alpine secdb

openexr→ fixed in3.1.1-r0
```
apk update && apk add --upgrade openexr
```

Alpine v3.18

Source: Alpine secdb

openexr→ fixed in3.1.1-r0
```
apk update && apk add --upgrade openexr
```

Alpine v3.19

Source: Alpine secdb

openexr→ fixed in3.1.1-r0
```
apk update && apk add --upgrade openexr
```

Are YOU affected by CVE-2021-26260?

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

Form-based quickscan View on NVD

Continuous monitoring beats manual checking

CVE-2021-26260dropped silently in your distro's update channel. Every new CVE is the same story. StackPatch runs the matcher hourly against all 5 sources and emails the exact remediation when something new applies to one of your servers. $99 lifetime, 50 founder seats, 30-day refund.

See StackPatch ($99 lifetime)