Debian LTS DLA-4557-1 pyasn1 Important DoS Attack CVE-2026-30922
debian lts
May 1, 2026
It was discovered that pyasn1, a generic ASN.1 library for Python, is vulnerable to a Denial of Service (DoS) attack caused by uncontrolled recursion when decoding ASN.1 data with ...
Topics Covered
Summary
For Debian 11 bullseye, this problem has been fixed in version
0.4.8-1+deb11u2.
We recommend that you upgrade your pyasn1 packages.
For the detailed security status of pyasn1 please refer to
its security tracker page at:
https://security-tracker.debian.org/tracker/pyasn1
Further information about Debian LTS security advisories, how to apply
these updates to your system and frequently asked questions can be
found at: https://wiki.debian.org/LTS
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Severity
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Package: pyasn1
Version: 0.4.8-1+deb11u2
CVE ID: CVE-2026-30922
Debian Bug: 1131371
Topics Covered
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