Import Source
https://github.com/microsoft/AzureLinuxVulnerabilityData/blob/main/osv/AZL-92436.json
JSON Data
https://api.osv.dev/v1/vulns/AZL-92436
Upstream
Published
2026-07-14T17:17:15Z
Modified
2026-08-30T05:26:50Z
Summary
CVE-2026-59886 affecting package python-pyasn1 for versions less than 0.4.8-3
Details

pyasn1 is a generic ASN.1 library for Python. Prior to 0.6.4, the univ.Real type converted its mantissa, base, and exponent value to a Python float using exact big-integer exponentiation. A BER, CER, or DER encoded REAL value only a few bytes long can carry a very large exponent, causing float conversion through prettyPrint(), str(), comparison, arithmetic, int(), or an explicit float() call to consume excessive CPU and memory and hang applications that decode untrusted ASN.1 data and then print, log, or compare decoded objects. This issue is fixed in version 0.6.4.

References

Affected packages

Azure Linux:3 / python-pyasn1

Package

Name
python-pyasn1
Purl
pkg:rpm/azure-linux/python-pyasn1

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
0.4.8-3

Database specific

source
"https://github.com/microsoft/AzureLinuxVulnerabilityData/blob/main/osv/AZL-92436.json"