CVE-2022-26498 Denial of service in n/a

What is CVE-2022-26498?

CVE-2022-26498 is a high-severity denial of service vulnerability in Debian Debian Linux, published on 15 Apr 2022. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

An issue was discovered in Asterisk through 19.x. When using STIR/SHAKEN, it is possible to download files that are not certificates. These files could be much larger than what one would expect to download, leading to Resource Exhaustion. This is fixed in 16.25.2, 18.11.2, and 19.3.2.

Weakness: CWE-400

Which versions are affected by CVE-2022-26498?

It affects 2 products.

Products include Debian Debian Linux, Digium Asterisk.

How do I fix CVE-2022-26498?

Upgrade to a fixed version.

Upgrade, then put limits on request size, rate and nesting depth so one client cannot exhaust the service. More about Denial of service.

Is CVE-2022-26498 being exploited?

There is no known exploitation of CVE-2022-26498 in the wild and no public exploit code.

Other vulnerabilities in Debian Debian Linux

• CVE-2015-3306 ProFTPD Improper Access Control Exploited Critical 10.0
• CVE-2025-49113 RoundCube Webmail Deserialization of Untrusted Data Exploited Critical 9.9
• CVE-2026-24061 GNU InetUtils Argument Injection Exploited Critical 9.8
• CVE-2025-39682 Linux Kernel Improper Check for Unusual or Exceptional Conditions Exploited Critical 9.8
• CVE-2024-9680 Mozilla Firefox Use-After-Free Exploited Critical 9.8

All Debian Debian Linux vulnerabilities

Sources

• CVE record
• NVD
• OSV
• GitHub advisory
• How this page is made

Also known as ALPINE-CVE-2022-26498, DEBIAN-CVE-2022-26498, GHSA-x4hp-q863-hc8m, UBUNTU-CVE-2022-26498.