Import Source
https://github.com/microsoft/AzureLinuxVulnerabilityData/blob/main/osv/AZL-87188.json
JSON Data
https://api.osv.dev/v1/vulns/AZL-87188
Upstream
Published
2026-05-22T04:16:22Z
Modified
2026-08-30T05:24:52Z
Summary
CVE-2026-39829 affecting package buildah 1.43.1-2
Details

The RSA and DSA public key parsers did not enforce size limits on key parameters. A crafted public key with an excessively large modulus or DSA parameter could cause several minutes of CPU consumption during signature verification. This could be triggered by unauthenticated clients during public key authentication. RSA moduli are now limited to 8192 bits, and DSA parameters are validated per FIPS 186-2.

References

Affected packages

Azure Linux:3 / buildah

Package

Name
buildah
Purl
pkg:rpm/azure-linux/buildah

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Last affected
1.43.1-2

Database specific

source
"https://github.com/microsoft/AzureLinuxVulnerabilityData/blob/main/osv/AZL-87188.json"