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Debian bookworm DSA-6194-1 pyasn1 Medium DoS CVE-2026-30922

debian
Calendar Grey April 3, 2026
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Denial of service bug found in pyasn1 on Debian systems, fix versions released for oldstable and stable distributions.
It was discovered that pyasn1, a generic ASN.1 library for Python, is prone to a denial of service vulnerability when decoding ASN.1 data with deeply nested structures
Topics%20covered

Topics Covered

security advisory moderate debian DoS pyasn1

Summary

For the oldstable distribution (bookworm), this problem has been fixed
in version 0.4.8-3+deb12u2.

For the stable distribution (trixie), this problem has been fixed in
version 0.6.1-1+deb13u2.

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/source-package/pyasn1

Further information about Debian Security Advisories, how to apply
these updates to your system and frequently asked questions can be
found at: https://www.debian.org/security/



Package: pyasn1
CVE ID: CVE-2026-30922

Topics%20covered

Topics Covered

security advisory moderate debian DoS pyasn1

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