CVE-2026-61548 · cross-distro fix matrix

CVE-2026-61548: It was discovered that rsyslog incorrectly handled regex-based TCP framing

Affects 3 Linux releases across 45 (distro × package) combinations. First disclosed: 2026-07-23.

Fix per ecosystem

Each block below is a distro release where CVE-2026-61548 has a known fix. Run the listed command on that distro to remediate.

Ubuntu jammy

Source: Ubuntu USN

rsyslog→ fixed in8.2112.0-2ubuntu2.4USN-8598-1
```
sudo apt-get install --only-upgrade -y rsyslog
```
rsyslog-czmq→ fixed in8.2112.0-2ubuntu2.4USN-8598-1
```
sudo apt-get install --only-upgrade -y rsyslog-czmq
```
rsyslog-elasticsearch→ fixed in8.2112.0-2ubuntu2.4USN-8598-1
```
sudo apt-get install --only-upgrade -y rsyslog-elasticsearch
```
rsyslog-gnutls→ fixed in8.2112.0-2ubuntu2.4USN-8598-1
```
sudo apt-get install --only-upgrade -y rsyslog-gnutls
```
rsyslog-gssapi→ fixed in8.2112.0-2ubuntu2.4USN-8598-1
```
sudo apt-get install --only-upgrade -y rsyslog-gssapi
```
rsyslog-hiredis→ fixed in8.2112.0-2ubuntu2.4USN-8598-1
```
sudo apt-get install --only-upgrade -y rsyslog-hiredis
```
rsyslog-kafka→ fixed in8.2112.0-2ubuntu2.4USN-8598-1
```
sudo apt-get install --only-upgrade -y rsyslog-kafka
```
rsyslog-kubernetes→ fixed in8.2112.0-2ubuntu2.4USN-8598-1
```
sudo apt-get install --only-upgrade -y rsyslog-kubernetes
```
rsyslog-mongodb→ fixed in8.2112.0-2ubuntu2.4USN-8598-1
```
sudo apt-get install --only-upgrade -y rsyslog-mongodb
```
rsyslog-mysql→ fixed in8.2112.0-2ubuntu2.4USN-8598-1
```
sudo apt-get install --only-upgrade -y rsyslog-mysql
```
rsyslog-openssl→ fixed in8.2112.0-2ubuntu2.4USN-8598-1
```
sudo apt-get install --only-upgrade -y rsyslog-openssl
```
rsyslog-pgsql→ fixed in8.2112.0-2ubuntu2.4USN-8598-1
```
sudo apt-get install --only-upgrade -y rsyslog-pgsql
```
rsyslog-relp→ fixed in8.2112.0-2ubuntu2.4USN-8598-1
```
sudo apt-get install --only-upgrade -y rsyslog-relp
```
rsyslog-snmp→ fixed in8.2112.0-2ubuntu2.4USN-8598-1
```
sudo apt-get install --only-upgrade -y rsyslog-snmp
```

Ubuntu noble

Source: Ubuntu USN

rsyslog→ fixed in8.2312.0-3ubuntu9.3USN-8598-1
```
sudo apt-get install --only-upgrade -y rsyslog
```
rsyslog-czmq→ fixed in8.2312.0-3ubuntu9.3USN-8598-1
```
sudo apt-get install --only-upgrade -y rsyslog-czmq
```
rsyslog-elasticsearch→ fixed in8.2312.0-3ubuntu9.3USN-8598-1
```
sudo apt-get install --only-upgrade -y rsyslog-elasticsearch
```
rsyslog-gnutls→ fixed in8.2312.0-3ubuntu9.3USN-8598-1
```
sudo apt-get install --only-upgrade -y rsyslog-gnutls
```
rsyslog-gssapi→ fixed in8.2312.0-3ubuntu9.3USN-8598-1
```
sudo apt-get install --only-upgrade -y rsyslog-gssapi
```
rsyslog-hiredis→ fixed in8.2312.0-3ubuntu9.3USN-8598-1
```
sudo apt-get install --only-upgrade -y rsyslog-hiredis
```
rsyslog-kafka→ fixed in8.2312.0-3ubuntu9.3USN-8598-1
```
sudo apt-get install --only-upgrade -y rsyslog-kafka
```
rsyslog-kubernetes→ fixed in8.2312.0-3ubuntu9.3USN-8598-1
```
sudo apt-get install --only-upgrade -y rsyslog-kubernetes
```
rsyslog-mongodb→ fixed in8.2312.0-3ubuntu9.3USN-8598-1
```
sudo apt-get install --only-upgrade -y rsyslog-mongodb
```
rsyslog-mysql→ fixed in8.2312.0-3ubuntu9.3USN-8598-1
```
sudo apt-get install --only-upgrade -y rsyslog-mysql
```
rsyslog-openssl→ fixed in8.2312.0-3ubuntu9.3USN-8598-1
```
sudo apt-get install --only-upgrade -y rsyslog-openssl
```
rsyslog-pgsql→ fixed in8.2312.0-3ubuntu9.3USN-8598-1
```
sudo apt-get install --only-upgrade -y rsyslog-pgsql
```
rsyslog-relp→ fixed in8.2312.0-3ubuntu9.3USN-8598-1
```
sudo apt-get install --only-upgrade -y rsyslog-relp
```
rsyslog-snmp→ fixed in8.2312.0-3ubuntu9.3USN-8598-1
```
sudo apt-get install --only-upgrade -y rsyslog-snmp
```

Ubuntu resolute

Source: Ubuntu USN

rsyslog→ fixed in8.2512.0-1ubuntu4.1USN-8598-1
```
sudo apt-get install --only-upgrade -y rsyslog
```
rsyslog-clickhouse→ fixed in8.2512.0-1ubuntu4.1USN-8598-1
```
sudo apt-get install --only-upgrade -y rsyslog-clickhouse
```
rsyslog-czmq→ fixed in8.2512.0-1ubuntu4.1USN-8598-1
```
sudo apt-get install --only-upgrade -y rsyslog-czmq
```
rsyslog-doc→ fixed in8.2512.0-1ubuntu4.1USN-8598-1
```
sudo apt-get install --only-upgrade -y rsyslog-doc
```
rsyslog-docker→ fixed in8.2512.0-1ubuntu4.1USN-8598-1
```
sudo apt-get install --only-upgrade -y rsyslog-docker
```
rsyslog-elasticsearch→ fixed in8.2512.0-1ubuntu4.1USN-8598-1
```
sudo apt-get install --only-upgrade -y rsyslog-elasticsearch
```
rsyslog-gnutls→ fixed in8.2512.0-1ubuntu4.1USN-8598-1
```
sudo apt-get install --only-upgrade -y rsyslog-gnutls
```
rsyslog-gssapi→ fixed in8.2512.0-1ubuntu4.1USN-8598-1
```
sudo apt-get install --only-upgrade -y rsyslog-gssapi
```
rsyslog-hiredis→ fixed in8.2512.0-1ubuntu4.1USN-8598-1
```
sudo apt-get install --only-upgrade -y rsyslog-hiredis
```
rsyslog-kafka→ fixed in8.2512.0-1ubuntu4.1USN-8598-1
```
sudo apt-get install --only-upgrade -y rsyslog-kafka
```
rsyslog-kubernetes→ fixed in8.2512.0-1ubuntu4.1USN-8598-1
```
sudo apt-get install --only-upgrade -y rsyslog-kubernetes
```
rsyslog-mongodb→ fixed in8.2512.0-1ubuntu4.1USN-8598-1
```
sudo apt-get install --only-upgrade -y rsyslog-mongodb
```
rsyslog-mysql→ fixed in8.2512.0-1ubuntu4.1USN-8598-1
```
sudo apt-get install --only-upgrade -y rsyslog-mysql
```
rsyslog-openssl→ fixed in8.2512.0-1ubuntu4.1USN-8598-1
```
sudo apt-get install --only-upgrade -y rsyslog-openssl
```
rsyslog-pgsql→ fixed in8.2512.0-1ubuntu4.1USN-8598-1
```
sudo apt-get install --only-upgrade -y rsyslog-pgsql
```
rsyslog-relp→ fixed in8.2512.0-1ubuntu4.1USN-8598-1
```
sudo apt-get install --only-upgrade -y rsyslog-relp
```
rsyslog-snmp→ fixed in8.2512.0-1ubuntu4.1USN-8598-1
```
sudo apt-get install --only-upgrade -y rsyslog-snmp
```

Are YOU affected by CVE-2026-61548?

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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